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763747 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Wei Yang
|
d538c164fc |
mm/sparse.c: check __highest_present_section_nr only for a present section
When searching a present section, there are two boundaries:
* __highest_present_section_nr
* NR_MEM_SECTIONS
And it is known, __highest_present_section_nr is a more strict boundary
than NR_MEM_SECTIONS. This means it would be necessary to check
__highest_present_section_nr only.
Link: http://lkml.kernel.org/r/20180326081956.75275-2-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Huang Ying
|
688272809f |
mm, gup: prevent pmd checking race in follow_pmd_mask()
mmap_sem will be read locked when calling follow_pmd_mask(). But this cannot prevent PMD from being changed for all cases when PTL is unlocked, for example, from pmd_trans_huge() to pmd_none() via MADV_DONTNEED. So it is possible for the pmd_present() check in follow_pmd_mask() to encounter an invalid PMD. This may cause an incorrect VM_BUG_ON() or an infinite loop. Fix this by reading the PMD entry into a local variable with READ_ONCE() and checking the local variable and pmd_none() in the retry loop. As Kirill pointed out, with PTL unlocked, the *pmd may be changed under us, so reading it directly again and again may incur weird bugs. So although using *pmd directly other than for pmd_present() checking may be safe, it is still better to replace them to read *pmd once and check the local variable multiple times. When PTL unlocked, replace all *pmd with local variable was suggested by Kirill. Link: http://lkml.kernel.org/r/20180419083514.1365-1-ying.huang@intel.com Signed-off-by: "Huang, Ying" <ying.huang@intel.com> Reviewed-by: Zi Yan <zi.yan@cs.rutgers.edu> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
|
7854207fe9 |
mm/docs: describe memory.low refinements
Refine cgroup v2 docs after latest memory.low changes. Link: http://lkml.kernel.org/r/20180405185921.4942-4-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
|
5f93ad6743 |
mm: treat memory.low value inclusive
If memcg's usage is equal to the memory.low value, avoid reclaiming from this cgroup while there is a surplus of reclaimable memory. This sounds more logical and also matches memory.high and memory.max behavior: both are inclusive. Empty cgroups are not considered protected, so MEMCG_LOW events are not emitted for empty cgroups, if there is no more reclaimable memory in the system. Link: http://lkml.kernel.org/r/20180406122132.GA7185@castle Signed-off-by: Roman Gushchin <guro@fb.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Roman Gushchin
|
230671533d |
mm: memory.low hierarchical behavior
This patch aims to address an issue in current memory.low semantics,
which makes it hard to use it in a hierarchy, where some leaf memory
cgroups are more valuable than others.
For example, there are memcgs A, A/B, A/C, A/D and A/E:
A A/memory.low = 2G, A/memory.current = 6G
//\\
BC DE B/memory.low = 3G B/memory.current = 2G
C/memory.low = 1G C/memory.current = 2G
D/memory.low = 0 D/memory.current = 2G
E/memory.low = 10G E/memory.current = 0
If we apply memory pressure, B, C and D are reclaimed at the same pace
while A's usage exceeds 2G. This is obviously wrong, as B's usage is
fully below B's memory.low, and C has 1G of protection as well. Also, A
is pushed to the size, which is less than A's 2G memory.low, which is
also wrong.
A simple bash script (provided below) can be used to reproduce
the problem. Current results are:
A: 1430097920
A/B: 711929856
A/C: 717426688
A/D: 741376
A/E: 0
To address the issue a concept of effective memory.low is introduced.
Effective memory.low is always equal or less than original memory.low.
In a case, when there is no memory.low overcommittment (and also for
top-level cgroups), these two values are equal.
Otherwise it's a part of parent's effective memory.low, calculated as a
cgroup's memory.low usage divided by sum of sibling's memory.low usages
(under memory.low usage I mean the size of actually protected memory:
memory.current if memory.current < memory.low, 0 otherwise). It's
necessary to track the actual usage, because otherwise an empty cgroup
with memory.low set (A/E in my example) will affect actual memory
distribution, which makes no sense. To avoid traversing the cgroup tree
twice, page_counters code is reused.
Calculating effective memory.low can be done in the reclaim path, as we
conveniently traversing the cgroup tree from top to bottom and check
memory.low on each level. So, it's a perfect place to calculate
effective memory low and save it to use it for children cgroups.
This also eliminates a need to traverse the cgroup tree from bottom to
top each time to check if parent's guarantee is not exceeded.
Setting/resetting effective memory.low is intentionally racy, but it's
fine and shouldn't lead to any significant differences in actual memory
distribution.
With this patch applied results are matching the expectations:
A: 2147930112
A/B: 1428721664
A/C: 718393344
A/D: 815104
A/E: 0
Test script:
#!/bin/bash
CGPATH="/sys/fs/cgroup"
truncate /file1 --size 2G
truncate /file2 --size 2G
truncate /file3 --size 2G
truncate /file4 --size 50G
mkdir "${CGPATH}/A"
echo "+memory" > "${CGPATH}/A/cgroup.subtree_control"
mkdir "${CGPATH}/A/B" "${CGPATH}/A/C" "${CGPATH}/A/D" "${CGPATH}/A/E"
echo 2G > "${CGPATH}/A/memory.low"
echo 3G > "${CGPATH}/A/B/memory.low"
echo 1G > "${CGPATH}/A/C/memory.low"
echo 0 > "${CGPATH}/A/D/memory.low"
echo 10G > "${CGPATH}/A/E/memory.low"
echo $$ > "${CGPATH}/A/B/cgroup.procs" && vmtouch -qt /file1
echo $$ > "${CGPATH}/A/C/cgroup.procs" && vmtouch -qt /file2
echo $$ > "${CGPATH}/A/D/cgroup.procs" && vmtouch -qt /file3
echo $$ > "${CGPATH}/cgroup.procs" && vmtouch -qt /file4
echo "A: " `cat "${CGPATH}/A/memory.current"`
echo "A/B: " `cat "${CGPATH}/A/B/memory.current"`
echo "A/C: " `cat "${CGPATH}/A/C/memory.current"`
echo "A/D: " `cat "${CGPATH}/A/D/memory.current"`
echo "A/E: " `cat "${CGPATH}/A/E/memory.current"`
rmdir "${CGPATH}/A/B" "${CGPATH}/A/C" "${CGPATH}/A/D" "${CGPATH}/A/E"
rmdir "${CGPATH}/A"
rm /file1 /file2 /file3 /file4
Link: http://lkml.kernel.org/r/20180405185921.4942-2-guro@fb.com
Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Roman Gushchin
|
bbec2e1517 |
mm: rename page_counter's count/limit into usage/max
This patch renames struct page_counter fields: count -> usage limit -> max and the corresponding functions: page_counter_limit() -> page_counter_set_max() mem_cgroup_get_limit() -> mem_cgroup_get_max() mem_cgroup_resize_limit() -> mem_cgroup_resize_max() memcg_update_kmem_limit() -> memcg_update_kmem_max() memcg_update_tcp_limit() -> memcg_update_tcp_max() The idea behind this renaming is to have the direct matching between memory cgroup knobs (low, high, max) and page_counters API. This is pure renaming, this patch doesn't bring any functional change. Link: http://lkml.kernel.org/r/20180405185921.4942-1-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Stefan Agner
|
1c4bc43ddf |
mm/memblock: introduce PHYS_ADDR_MAX
So far code was using ULLONG_MAX and type casting to obtain a phys_addr_t with all bits set. The typecast is necessary to silence compiler warnings on 32-bit platforms. Use the simpler but still type safe approach "~(phys_addr_t)0" to create a preprocessor define for all bits set. Link: http://lkml.kernel.org/r/20180406213809.566-1-stefan@agner.ch Signed-off-by: Stefan Agner <stefan@agner.ch> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Pavel Tatashin <pasha.tatashin@oracle.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Laurent Dufour
|
00b3a331fd |
mm: remove odd HAVE_PTE_SPECIAL
Remove the additional define HAVE_PTE_SPECIAL and rely directly on CONFIG_ARCH_HAS_PTE_SPECIAL. There is no functional change introduced by this patch Link: http://lkml.kernel.org/r/1523533733-25437-1-git-send-email-ldufour@linux.vnet.ibm.com Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com> Acked-by: David Rientjes <rientjes@google.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Christophe LEROY <christophe.leroy@c-s.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Laurent Dufour
|
3010a5ea66 |
mm: introduce ARCH_HAS_PTE_SPECIAL
Currently the PTE special supports is turned on in per architecture header files. Most of the time, it is defined in arch/*/include/asm/pgtable.h depending or not on some other per architecture static definition. This patch introduce a new configuration variable to manage this directly in the Kconfig files. It would later replace __HAVE_ARCH_PTE_SPECIAL. Here notes for some architecture where the definition of __HAVE_ARCH_PTE_SPECIAL is not obvious: arm __HAVE_ARCH_PTE_SPECIAL which is currently defined in arch/arm/include/asm/pgtable-3level.h which is included by arch/arm/include/asm/pgtable.h when CONFIG_ARM_LPAE is set. So select ARCH_HAS_PTE_SPECIAL if ARM_LPAE. powerpc __HAVE_ARCH_PTE_SPECIAL is defined in 2 files: - arch/powerpc/include/asm/book3s/64/pgtable.h - arch/powerpc/include/asm/pte-common.h The first one is included if (PPC_BOOK3S & PPC64) while the second is included in all the other cases. So select ARCH_HAS_PTE_SPECIAL all the time. sparc: __HAVE_ARCH_PTE_SPECIAL is defined if defined(__sparc__) && defined(__arch64__) which are defined through the compiler in sparc/Makefile if !SPARC32 which I assume to be if SPARC64. So select ARCH_HAS_PTE_SPECIAL if SPARC64 There is no functional change introduced by this patch. Link: http://lkml.kernel.org/r/1523433816-14460-2-git-send-email-ldufour@linux.vnet.ibm.com Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com> Suggested-by: Jerome Glisse <jglisse@redhat.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: David S. Miller <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Albert Ou <albert@sifive.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: David Rientjes <rientjes@google.com> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Christophe LEROY <christophe.leroy@c-s.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Wei Yang
|
e69438596b |
mm/page_alloc: remove realsize in free_area_init_core()
Highmem's realsize always equals to freesize, so it is not necessary to spare a variable to record this. Link: http://lkml.kernel.org/r/20180413083859.65888-1-richard.weiyang@gmail.com Signed-off-by: Wei Yang <richard.weiyang@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Kravetz
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5d752600a8 |
mm: restructure memfd code
With the addition of memfd hugetlbfs support, we now have the situation where memfd depends on TMPFS -or- HUGETLBFS. Previously, memfd was only supported on tmpfs, so it made sense that the code resided in shmem.c. In the current code, memfd is only functional if TMPFS is defined. If HUGETLFS is defined and TMPFS is not defined, then memfd functionality will not be available for hugetlbfs. This does not cause BUGs, just a lack of potentially desired functionality. Code is restructured in the following way: - include/linux/memfd.h is a new file containing memfd specific definitions previously contained in shmem_fs.h. - mm/memfd.c is a new file containing memfd specific code previously contained in shmem.c. - memfd specific code is removed from shmem_fs.h and shmem.c. - A new config option MEMFD_CREATE is added that is defined if TMPFS or HUGETLBFS is defined. No functional changes are made to the code: restructuring only. Link: http://lkml.kernel.org/r/20180415182119.4517-4-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: David Herrmann <dh.herrmann@gmail.com> Cc: Hugh Dickins <hughd@google.com> Cc: Marc-Andr Lureau <marcandre.lureau@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Kravetz
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c49fcfcda8 |
mm/shmem: update file sealing comments and file checking
In preparation for memfd code restructure, update comments, definitions and function names dealing with file sealing to indicate that tmpfs and hugetlbfs are the supported filesystems. Also, change file pointer checks in memfd_file_seals_ptr to use defined interfaces instead of directly referencing file_operation structs. Link: http://lkml.kernel.org/r/20180415182119.4517-3-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: David Herrmann <dh.herrmann@gmail.com> Cc: Hugh Dickins <hughd@google.com> Cc: Marc-Andr Lureau <marcandre.lureau@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Kravetz
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5b9c98f308 |
mm/shmem: add __rcu annotations and properly deref radix entry
Patch series "restructure memfd code", v4. This patch (of 3): In preparation for memfd code restucture, clean up sparse warnings. Most changes required adding __rcu annotations. The routine find_swap_entry was modified to properly deference radix tree entries. Link: http://lkml.kernel.org/r/20180415182119.4517-2-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Matthew Wilcox <willy@infradead.org> Cc: Hugh Dickins <hughd@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Marc-Andr Lureau <marcandre.lureau@gmail.com> Cc: David Herrmann <dh.herrmann@gmail.com> Cc: Khalid Aziz <khalid.aziz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Minchan Kim
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c0265342bf |
zram: introduce zram memory tracking
zRam as swap is useful for small memory device. However, swap means
those pages on zram are mostly cold pages due to VM's LRU algorithm.
Especially, once init data for application are touched for launching,
they tend to be not accessed any more and finally swapped out. zRAM can
store such cold pages as compressed form but it's pointless to keep in
memory. Better idea is app developers free them directly rather than
remaining them on heap.
This patch tell us last access time of each block of zram via "cat
/sys/kernel/debug/zram/zram0/block_state".
The output is as follows,
300 75.033841 .wh
301 63.806904 s..
302 63.806919 ..h
First column is zram's block index and 3rh one represents symbol (s:
same page w: written page to backing store h: huge page) of the block
state. Second column represents usec time unit of the block was last
accessed. So above example means the 300th block is accessed at
75.033851 second and it was huge so it was written to the backing store.
Admin can leverage this information to catch cold|incompressible pages
of process with *pagemap* once part of heaps are swapped out.
I used the feature a few years ago to find memory hoggers in userspace
to notify them what memory they have wasted without touch for a long
time. With it, they could reduce unnecessary memory space. However, at
that time, I hacked up zram for the feature but now I need the feature
again so I decided it would be better to upstream rather than keeping it
alone. I hope I submit the userspace tool to use the feature soon.
[akpm@linux-foundation.org: fix i386 printk warning]
[minchan@kernel.org: use ktime_get_boottime() instead of sched_clock()]
Link: http://lkml.kernel.org/r/20180420063525.GA253739@rodete-desktop-imager.corp.google.com
[akpm@linux-foundation.org: documentation tweak]
[akpm@linux-foundation.org: fix i386 printk warning]
[minchan@kernel.org: fix compile warning]
Link: http://lkml.kernel.org/r/20180508104849.GA8209@rodete-desktop-imager.corp.google.com
[rdunlap@infradead.org: fix printk formats]
Link: http://lkml.kernel.org/r/3652ccb1-96ef-0b0b-05d1-f661d7733dcc@infradead.org
Link: http://lkml.kernel.org/r/20180416090946.63057-5-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Minchan Kim
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d7eac6b6e1 |
zram: record accessed second
zRam as swap is useful for small memory device. However, swap means those pages on zram are mostly cold pages due to VM's LRU algorithm. Especially, once init data for application are touched for launching, they tend to be not accessed any more and finally swapped out. zRAM can store such cold pages as compressed form but it's pointless to keep in memory. Better idea is app developers free them directly rather than remaining them on heap. This patch records last access time of each block of zram so that With upcoming zram memory tracking, it could help userspace developers to reduce memory footprint. Link: http://lkml.kernel.org/r/20180416090946.63057-4-minchan@kernel.org Signed-off-by: Minchan Kim <minchan@kernel.org> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Minchan Kim
|
89e85bce4b |
zram: mark incompressible page as ZRAM_HUGE
Mark incompressible pages so that we could investigate who is the owner of the incompressible pages once the page is swapped out via using upcoming zram memory tracker feature. With it, we could prevent such pages to be swapped out by using mlock. Otherwise we might remove them. This patch exposes new stat for huge pages via mm_stat. Link: http://lkml.kernel.org/r/20180416090946.63057-3-minchan@kernel.org Signed-off-by: Minchan Kim <minchan@kernel.org> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Minchan Kim
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c4d6c4cc7b |
zram: correct flag name of ZRAM_ACCESS
Patch series "zram memory tracking", v5.
zRam as swap is useful for small memory device. However, swap means
those pages on zram are mostly cold pages due to VM's LRU algorithm.
Especially, once init data for application are touched for launching,
they tend to be not accessed any more and finally swapped out. zRAM can
store such cold pages as compressed form but it's pointless to keep in
memory. As well, it's pointless to store incompressible pages to zram
so better idea is app developers manages them directly like free or
mlock rather than remaining them on heap.
This patch provides a debugfs /sys/kernel/debug/zram/zram0/block_state
to represent each block's state so admin can investigate what memory is
cold|incompressible|same page with using pagemap once the pages are
swapped out.
The output is as follows:
300 75.033841 .wh
301 63.806904 s..
302 63.806919 ..h
First column is zram's block index and 3rh one represents symbol (s:
same page w: written page to backing store h: huge page) of the block
state. Second column represents usec time unit of the block was last
accessed. So above example means the 300th block is accessed at
75.033851 second and it was huge so it was written to the backing store.
This patch (of 4):
ZRAM_ACCESS is used for locking a slot of zram so correct the name. It
is also not a common flag to indicate status of the block so move the
declare position on top of the flag. Lastly, let's move the function to
the top of source code to be able to use it easily without forward
declaration.
Link: http://lkml.kernel.org/r/20180416090946.63057-2-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tejun Heo
|
f3a53a3a1e |
mm, memcontrol: implement memory.swap.events
Add swap max and fail events so that userland can monitor and respond to running out of swap. I'm not too sure about the fail event. Right now, it's a bit confusing which stats / events are recursive and which aren't and also which ones reflect events which originate from a given cgroup and which targets the cgroup. No idea what the right long term solution is and it could just be that growing them organically is actually the only right thing to do. Link: http://lkml.kernel.org/r/20180416231151.GI1911913@devbig577.frc2.facebook.com Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Roman Gushchin <guro@fb.com> Cc: Rik van Riel <riel@surriel.com> Cc: <linux-api@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Tejun Heo
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bb98f2c5ac |
mm, memcontrol: move swap charge handling into get_swap_page()
Patch series "mm, memcontrol: Implement memory.swap.events", v2. This patchset implements memory.swap.events which contains max and fail events so that userland can monitor and respond to swap running out. This patch (of 2): get_swap_page() is always followed by mem_cgroup_try_charge_swap(). This patch moves mem_cgroup_try_charge_swap() into get_swap_page() and makes get_swap_page() call the function even after swap allocation failure. This simplifies the callers and consolidates memcg related logic and will ease adding swap related memcg events. Link: http://lkml.kernel.org/r/20180416230934.GH1911913@devbig577.frc2.facebook.com Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Roman Gushchin <guro@fb.com> Cc: Rik van Riel <riel@surriel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Yang Shi
|
88aa7cc688 |
mm: introduce arg_lock to protect arg_start|end and env_start|end in mm_struct
mmap_sem is on the hot path of kernel, and it very contended, but it is
abused too. It is used to protect arg_start|end and evn_start|end when
reading /proc/$PID/cmdline and /proc/$PID/environ, but it doesn't make
sense since those proc files just expect to read 4 values atomically and
not related to VM, they could be set to arbitrary values by C/R.
And, the mmap_sem contention may cause unexpected issue like below:
INFO: task ps:14018 blocked for more than 120 seconds.
Tainted: G E 4.9.79-009.ali3000.alios7.x86_64 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
ps D 0 14018 1 0x00000004
Call Trace:
schedule+0x36/0x80
rwsem_down_read_failed+0xf0/0x150
call_rwsem_down_read_failed+0x18/0x30
down_read+0x20/0x40
proc_pid_cmdline_read+0xd9/0x4e0
__vfs_read+0x37/0x150
vfs_read+0x96/0x130
SyS_read+0x55/0xc0
entry_SYSCALL_64_fastpath+0x1a/0xc5
Both Alexey Dobriyan and Michal Hocko suggested to use dedicated lock
for them to mitigate the abuse of mmap_sem.
So, introduce a new spinlock in mm_struct to protect the concurrent
access to arg_start|end, env_start|end and others, as well as replace
write map_sem to read to protect the race condition between prctl and
sys_brk which might break check_data_rlimit(), and makes prctl more
friendly to other VM operations.
This patch just eliminates the abuse of mmap_sem, but it can't resolve
the above hung task warning completely since the later
access_remote_vm() call needs acquire mmap_sem. The mmap_sem
scalability issue will be solved in the future.
[yang.shi@linux.alibaba.com: add comment about mmap_sem and arg_lock]
Link: http://lkml.kernel.org/r/1524077799-80690-1-git-send-email-yang.shi@linux.alibaba.com
Link: http://lkml.kernel.org/r/1523730291-109696-1-git-send-email-yang.shi@linux.alibaba.com
Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mateusz Guzik <mguzik@redhat.com>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Baoquan He
|
05fec35ebb |
slab: clean up the code comment in slab kmem_cache struct
In commit
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Canjiang Lu
|
05088e5de0 |
mm/slub: remove obsolete comment
The obsolete comment removed in this patch was introduced by
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Mathieu Malaterre
|
a38965bf94 |
mm/slub.c: add __printf verification to slab_err()
__printf is useful to verify format and arguments. Remove the following warning (with W=1): mm/slub.c:721:2: warning: function might be possible candidate for `gnu_printf' format attribute [-Wsuggest-attribute=format] Link: http://lkml.kernel.org/r/20180505200706.19986-1-malat@debian.org Signed-off-by: Mathieu Malaterre <malat@debian.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Matthew Wilcox
|
128227e7fe |
slab: __GFP_ZERO is incompatible with a constructor
__GFP_ZERO requests that the object be initialised to all-zeroes, while
the purpose of a constructor is to initialise an object to a particular
pattern. We cannot do both. Add a warning to catch any users who
mistakenly pass a __GFP_ZERO flag when allocating a slab with a
constructor.
Link: http://lkml.kernel.org/r/20180412191322.GA21205@bombadil.infradead.org
Fixes:
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Sebastian Andrzej Siewior
|
e56ee574bc |
net/9p/trans_xen.c: don't inclide rwlock.h directly
rwlock.h should not be included directly. Instead linux/splinlock.h should be included. One thing it does is to break the RT build. Link: http://lkml.kernel.org/r/20180504100319.11880-1-bigeasy@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Ron Minnich <rminnich@sandia.gov> Cc: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Chengguang Xu
|
478ae0ca08 |
fs/9p: detect invalid options as much as possible
Currently when detecting invalid options in option parsing, some options(e.g. msize) just set errno and allow to continuously validate other options so that it can detect invalid options as much as possible and give proper error messages together. This patch applies same rule to option 'cache' and 'access' when detecting -EINVAL. Link: http://lkml.kernel.org/r/1525340676-34072-2-git-send-email-cgxu519@gmx.com Signed-off-by: Chengguang Xu <cgxu519@gmx.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Ron Minnich <rminnich@sandia.gov> Cc: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Chengguang Xu
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8d856c72b4 |
net/9p: detect invalid options as much as possible
Currently when detecting invalid options in option parsing, some options(e.g. msize) just set errno and allow to continuously validate other options so that it can detect invalid options as much as possible and give proper error messages together. This patch applies same rule to option 'trans' and 'version' when detecting -EINVAL. Link: http://lkml.kernel.org/r/1525340676-34072-1-git-send-email-cgxu519@gmx.com Signed-off-by: Chengguang Xu <cgxu519@gmx.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Ron Minnich <rminnich@sandia.gov> Cc: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Souptick Joarder
|
c6137fe36d |
fs: ocfs2: use new return type vm_fault_t
Use new return type vm_fault_t for fault handler. For now, this is just
documenting that the function returns a VM_FAULT value rather than an
errno. Once all instances are converted, vm_fault_t will become a
distinct type.
Ref-> commit
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Salvatore Mesoraca
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64202a21a4 |
ocfs2: drop a VLA in ocfs2_orphan_del()
Avoid a VLA by using a real constant expression instead of a variable. The compiler should be able to optimize the original code and avoid using an actual VLA. Anyway this change is useful because it will avoid a false positive with -Wvla, it might also help the compiler generating better code. Link: http://lkml.kernel.org/r/1520970710-19732-1-git-send-email-s.mesoraca16@gmail.com Signed-off-by: Salvatore Mesoraca <s.mesoraca16@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joseph Qi <jiangqi903@gmail.com> Cc: Changwei Ge <ge.changwei@h3c.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Guozhonghua
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f3797d8ae5 |
ocfs2: correct the comments position of struct ocfs2_dir_block_trailer
Correct the comments position of the structure ocfs2_dir_block_trailer. Link: http://lkml.kernel.org/r/71604351584F6A4EBAE558C676F37CA401071C5FDE@H3CMLB12-EX.srv.huawei-3com.com Signed-off-by: guozhonghua <guozhonghua@h3c.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joseph Qi <jiangqi903@gmail.com> Cc: Changwei Ge <ge.changwei@h3c.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Zhen Lei
|
731a40fab1 |
ocfs2: eliminate a misreported warning
The warning is invalid because the parameter chunksize passed from
ocfs2_info_freefrag_scan_chain-->ocfs2_info_update_ffg is guaranteed to
be positive. So __ilog2_u32 cannot return -1.
fs/ocfs2/ioctl.c: In function 'ocfs2_info_update_ffg':
fs/ocfs2/ioctl.c:411:17: warning: array subscript is below array bounds [-Warray-bounds]
hist->fc_chunks[index]++;
^
fs/ocfs2/ioctl.c:411:17: warning: array subscript is below array bounds [-Warray-bounds]
Link: http://lkml.kernel.org/r/1524655799-12112-1-git-send-email-thunder.leizhen@huawei.com
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Larry Chen
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133b81f28e |
ocfs2: ocfs2_inode_lock_tracker does not distinguish lock level
ocfs2_inode_lock_tracker as a variant of ocfs2_inode_lock, is used to
prevent deadlock due to recursive lock acquisition.
But this function does not distinguish whether the requested level is EX
or PR.
If a RP lock has been attained, this function will immediately return
success afterwards even an EX lock is requested.
But actually the return value does not mean that the process got a EX
lock, because ocfs2_inode_lock has not been called.
When taking lock levels into account, we face some different situations:
1. no lock is held
In this case, just lock the inode and return 0
2. We are holding a lock
For this situation, things diverges into several cases
wanted holding what to do
ex ex see 2.1 below
ex pr see 2.2 below
pr ex see 2.1 below
pr pr see 2.1 below
2.1 lock level that is been held is compatible
with the wanted level, so no lock action will be tacken.
2.2 Otherwise, an upgrade is needed, but it is forbidden.
Reason why upgrade within a process is forbidden is that lock upgrade
may cause dead lock. The following illustrate how it happens.
process 1 process 2
ocfs2_inode_lock_tracker(ex=0)
<====== ocfs2_inode_lock_tracker(ex=1)
ocfs2_inode_lock_tracker(ex=1)
For the status quo of ocfs2, without this patch, neither a bug nor
end-user impact will be caused because the wrong logic is avoided.
But I'm afraid this generic interface, may be called by other developers
in future and used in this situation.
a process
ocfs2_inode_lock_tracker(ex=0)
ocfs2_inode_lock_tracker(ex=1)
Link: http://lkml.kernel.org/r/20180510053230.17217-1-lchen@suse.com
Signed-off-by: Larry Chen <lchen@suse.com>
Reviewed-by: Gang He <ghe@suse.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jia Guo
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5bc55d654b |
ocfs2: clean up redundant function declarations
ocfs2_extend_allocation() has been deleted, clean up its declaration.
Also change the static function name from __ocfs2_extend_allocation() to
ocfs2_extend_allocation() to be consistent with the corresponding trace
events as well as comments for ocfs2_lock_allocators().
Link: http://lkml.kernel.org/r/09cf7125-6f12-e53e-20f5-e606b2c16b48@huawei.com
Fixes:
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Joe Perches
|
882ea1d64e |
scripts: use SPDX tag in get_maintainer and checkpatch
Add the appropriate SPDX tag to these scripts. Miscellanea: o Add my copyright to checkpatch Link: http://lkml.kernel.org/r/d08e49e8f6562c58a63792aa64306d1851f81f4b.camel@perches.com Signed-off-by: Joe Perches <joe@perches.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Souptick Joarder
|
ab77dab462 |
fs/dax.c: use new return type vm_fault_t
Use new return type vm_fault_t for fault handler. For now, this is just
documenting that the function returns a VM_FAULT value rather than an
errno. Once all instances are converted, vm_fault_t will become a
distinct type.
commit
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Linus Torvalds
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ba1b7309fc |
Merge branch 'next-smack' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull smack update from James Morris:
"From Casey:
One simple patch that fixes a memory leak in kernfs and labeled NFS"
* 'next-smack' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
Smack: Fix memory leak in smack_inode_getsecctx
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Linus Torvalds
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294248e9fb |
Merge branch 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull TPM updates from James Morris:
"From Jarkko:
This purely a bug fix release.
The only major change is to move the event log code to its own
subdirectory because there starts to be so much of it"
* 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
tpm: fix race condition in tpm_common_write()
tpm: reduce polling time to usecs for even finer granularity
tpm: replace kmalloc() + memcpy() with kmemdup()
tpm: replace kmalloc() + memcpy() with kmemdup()
tpm: fix use after free in tpm2_load_context()
tpm: reduce poll sleep time in tpm_transmit()
tpm_tis: verify locality released before returning from release_locality
tpm: tpm_crb: relinquish locality on error path.
tpm/st33zp24: Fix spelling mistake in macro ST33ZP24_TISREGISTER_UKNOWN
tpm: Move eventlog declarations to its own header
tpm: Move shared eventlog functions to common.c
tpm: Move eventlog files to a subdirectory
tpm: Add explicit endianness cast
tpm: st33zp24: remove redundant null check on chip
tpm: move the delay_msec increment after sleep in tpm_transmit()
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Linus Torvalds
|
00d535a386 |
Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull integrity updates from James Morris:
"From Mimi:
- add run time support for specifying additional security xattrs
included in the security.evm HMAC/signature
- some code clean up and bug fixes"
* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
EVM: unlock on error path in evm_read_xattrs()
EVM: prevent array underflow in evm_write_xattrs()
EVM: Fix null dereference on xattr when xattr fails to allocate
EVM: fix memory leak of temporary buffer 'temp'
IMA: use list_splice_tail_init_rcu() instead of its open coded variant
ima: use match_string() helper
ima: fix updating the ima_appraise flag
ima: based on policy verify firmware signatures (pre-allocated buffer)
ima: define a new policy condition based on the filesystem name
EVM: Allow runtime modification of the set of verified xattrs
EVM: turn evm_config_xattrnames into a list
integrity: Add an integrity directory in securityfs
ima: Remove unused variable ima_initialized
ima: Unify logging
ima: Reflect correct permissions for policy
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Linus Torvalds
|
289cf155d9 |
DeviceTree updates for v4.18:
- Sync dtc with upstream version v1.4.6-21-g84e414b0b5bc. This adds new warnings which are either fixed or disabled by default (enabled with W=1). - Validate an untrusted offset in DT overlay function update_usages_of_a_phandle_reference - Fix a use after free error of_platform_device_destroy - Fix an off by 1 string errors in unittest - Avoid creating a struct device for OPP nodes - Update DT specific submitting-patches.txt with patch content and subject requirements. - Move some bindings to their proper subsystem locations - Add vendor prefixes for Kaohsiung, SiFive, Avnet, Wi2Wi, Logic PD, and ArcherMind - Add documentation for "no-gpio-delays" property in FSI bus GPIO master - Add compatible for r8a77990 SoC ravb ethernet block - More wack-a-mole removal of 'status' property in examples -----BEGIN PGP SIGNATURE----- iQJEBAABCgAuFiEEktVUI4SxYhzZyEuo+vtdtY28YcMFAlsX7EMQHHJvYmhAa2Vy bmVsLm9yZwAKCRD6+121jbxhwymLD/0b71t4fwg2n/vkrKHXp/NyGNv2mcDjl2Yo VEFKvRrUEVQNQHfUAgo9aaI71+prr7a4MB9o3GE4NBO+IsY5YpK+TYpVj2M2cVqW giIjivOw8+sxJFnAGpYoxqwHtdm9fkdQEnLl/x90QBw0ZicDXC9MAnIaLUqVqoM9 6GbFODyb6Z2lzw73d5Gvg/fvxdlANWvOMLwz6w6Xd8/bN9+FCEjhxSIyNJO2ASCb dAju6EFqqvJvRs2WYjnDABOW/ujl95RuP0NVuZ0b+FfHQSNzKk9IxCFHAFUaw5Md SqbqkKkhJamnAtETIV5r//bMBpiLO8a9BwJexXo+E1ftR8isbQMhLmD9kBsLDL8A s4wDfAeqKSqH9RAsCaWb50POafe4LwCzKQGMiZUXsGeiHv/lIS2t5ybwmJ+LrDiL nIIcX2fDAgjG1FPH3sMKNiwYhJQwsBFmgB4qvCNcGhDhi587gM6TehcBznX/tscQ o4AY/qTmsCcabI9/3V6JEMelHZ5WfARGBSID4QEFqWIxKXDDIhH4JCjRdyCJIK0M zKaE0uqlrDsVOPLHqAphoc0ebuCgU6SxcI1EXX2fMaaAJSmrr7G1N2abTJSHSJ03 ApYHPn5AJGq/xIpE4955h9CRKN4ftu+sTfkPx9KmnRysf5DntuRRQtuSuFXcJ9mO vtKp3kWFWQ== =2b7G -----END PGP SIGNATURE----- Merge tag 'devicetree-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: - Sync dtc with upstream version v1.4.6-21-g84e414b0b5bc. This adds new warnings which are either fixed or disabled by default (enabled with W=1). - Validate an untrusted offset in DT overlay function update_usages_of_a_phandle_reference - Fix a use after free error of_platform_device_destroy - Fix an off by 1 string errors in unittest - Avoid creating a struct device for OPP nodes - Update DT specific submitting-patches.txt with patch content and subject requirements. - Move some bindings to their proper subsystem locations - Add vendor prefixes for Kaohsiung, SiFive, Avnet, Wi2Wi, Logic PD, and ArcherMind - Add documentation for "no-gpio-delays" property in FSI bus GPIO master - Add compatible for r8a77990 SoC ravb ethernet block - More wack-a-mole removal of 'status' property in examples * tag 'devicetree-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (25 commits) dt-bindings: submitting-patches: add guidance on patch content and subject of: platform: stop accessing invalid dev in of_platform_device_destroy dt-bindings: net: ravb: Add support for r8a77990 SoC dt-bindings: Add vendor prefix for ArcherMind dt-bindings: fsi-master-gpio: Document "no-gpio-delays" property dt-bindings: Add vendor prefix for Logic PD of: overlay: validate offset from property fixups of: unittest: for strings, account for trailing \0 in property length field drm: rcar-du: disable dtc graph-endpoint warnings on DT overlays kbuild: disable new dtc graph and unit-address warnings scripts/dtc: Update to upstream version v1.4.6-21-g84e414b0b5bc MAINTAINERS: add keyword for devicetree overlay notifiers dt-bindings: define vendor prefix for Wi2Wi, Inc. dt-bindings: Add vendor prefix for Avnet, Inc. dt-bindings: Relocate Tegra20 memory controller bindings dt-bindings: Add "sifive" vendor prefix dt-bindings: exynos: move ADC binding to iio/adc/ directory dt-bindings: powerpc/4xx: move 4xx NDFC and EMAC bindings to subsystem directories dt-bindings: move various RNG bindings to rng/ directory dt-bindings: move various timer bindings to timer/ directory ... |
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Linus Torvalds
|
7423fd7a66 |
Mostly small fixes and cleanups, plus a non-trivial fix for charlcd
- charlcd: fixes and cleanups
From Robert Abel and Sean Young
- Kconfig fixes
From Randy Dunlap, Corentin Labbe and Ulf Magnusson
- cfag12864bfb: const cleanup
From Gustavo A. R. Silva
- Docs/licenses/warnings cleanups
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Merge tag 'auxdisplay-for-linus-v4.18-rc1' of git://github.com/ojeda/linux
Pull auxdisplay updates from Miguel Ojeda:
"Mostly small fixes and cleanups, plus a non-trivial fix for charlcd
- charlcd: fixes and cleanups (Robert Abel and Sean Young)
- Kconfig fixes (Randy Dunlap, Corentin Labbe and Ulf Magnusson)
- cfag12864bfb: const cleanup (Gustavo A. R. Silva)
- Docs/licenses/warnings cleanups"
* tag 'auxdisplay-for-linus-v4.18-rc1' of git://github.com/ojeda/linux:
auxdisplay: Replace licenses with SPDX identifiers
auxdisplay: make PANEL a menuconfig
auxdisplay: fix broken menu
auxdisplay: charlcd: Fix and clean up handling of x/y commands
auxdisplay: charlcd: fix hex literal ranges for graphics command
auxdisplay: charlcd: fix two-line command ^[[LN not marked as processed
auxdisplay: charlcd: replace octal literal with form-feed escape sequence
auxdisplay: charlcd: use null character instead of zero literal to terminate strings
auxdisplay: charlcd: no need to call charlcd_gotoxy() if nothing changes
auxdisplay: cfag12864bfb: constify fb_fix_screeninfo and fb_var_screeninfo structures
auxdisplay: img-ascii-lcd: fix typo on select SYSCON/MFD_SYSCON
auxdisplay: img-ascii-lcd: kconfig: Remove MIPS_SEAD3 reference
auxdisplay: arm-charlcd: Fix struct charlcd doc line
MAINTAINERS: auxdisplay: remove obsolete webpages
Doc: misc-devices: move lcd-panel-cgram.txt to auxdisplay/
|
||
|
Linus Torvalds
|
edb2a385ec |
This is the bulk of pin control changes for v4.18.
No core changes this time! Just a calm all-over-the-place
drivers, updates and fixes cycle as it seems.
New drivers/subdrivers:
- Actions Semiconductor S900 driver with more Actions
variants for S700, S500 in the pipe. Also generic GPIO
support on top of the same driver and IRQ support is in
the pipe.
- Renesas r8a77470 PFC support.
- Renesas r8a77990 PFC support.
- Allwinner Sunxi H6 R_PIO support.
- Rockchip PX30 support.
- Meson Meson8m2 support.
- Remove support for the ill-fated Samsung Exynos 5440 SoC.
Improvements:
- Context save/restore support in pinctrl-single.
- External interrupt support for the Mediatek MT7622.
- Qualcomm ACPI HID QCOM8002 supported.
Fixes:
- Fix up suspend/resume support for Exynos 5433.
- Fix Strago DMI fixes on the Intel Cherryview.
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Merge tag 'pinctrl-v4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for v4.18.
No core changes this time! Just a calm all-over-the-place drivers,
updates and fixes cycle as it seems.
New drivers/subdrivers:
- Actions Semiconductor S900 driver with more Actions variants for
S700, S500 in the pipe. Also generic GPIO support on top of the
same driver and IRQ support is in the pipe.
- Renesas r8a77470 PFC support.
- Renesas r8a77990 PFC support.
- Allwinner Sunxi H6 R_PIO support.
- Rockchip PX30 support.
- Meson Meson8m2 support.
- Remove support for the ill-fated Samsung Exynos 5440 SoC.
Improvements:
- Context save/restore support in pinctrl-single.
- External interrupt support for the Mediatek MT7622.
- Qualcomm ACPI HID QCOM8002 supported.
Fixes:
- Fix up suspend/resume support for Exynos 5433.
- Fix Strago DMI fixes on the Intel Cherryview"
* tag 'pinctrl-v4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (72 commits)
pinctrl: cherryview: limit Strago DMI workarounds to version 1.0
pinctrl: at91-pio4: add missing of_node_put
pinctrl: armada-37xx: Fix spurious irq management
gpiolib: discourage gpiochip_add_pin[group]_range for DT pinctrls
pinctrl: msm: fix gpio-hog related boot issues
MAINTAINERS: update entry for Mediatek pin controller
pinctrl: mediatek: remove unused fields in struct mtk_eint_hw
pinctrl: mediatek: use generic EINT register maps for each SoC
pinctrl: mediatek: add EINT support to MT7622 SoC
pinctrl: mediatek: refactor EINT related code for all MediaTek pinctrl can fit
dt-bindings: pinctrl: add external interrupt support to MT7622 pinctrl
pinctrl: freescale: Switch to SPDX identifier
pinctrl: samsung: Fix suspend/resume for Exynos5433 GPF1..5 banks
pinctrl: sh-pfc: rcar-gen3: Fix grammar in static pin comments
pinctrl: sh-pfc: r8a77965: Add I2C pin support
pinctrl: sh-pfc: r8a77990: Add EthernetAVB pins, groups and functions
pinctrl: sh-pfc: r8a77990: Add I2C{1,2,4,5,6,7} pins, groups and functions
pinctrl: sh-pfc: r8a77990: Add SCIF pins, groups and functions
pinctrl: sh-pfc: r8a77990: Add bias pinconf support
pinctrl: sh-pfc: Initial R8A77990 PFC support
...
|
||
|
Boris Brezillon
|
b771327a45 |
Core changes:
- Add support for a bunch of SPI NOR chips
- Clear EAR reg when switching to 3-byte addressing mode on Winbond
chips
SPI NOR controller driver changes:
- cadence: Add DMA support for direct mode reads
- hisi: Prefix a few functions with hisi_
- intel:
* Mark the driver as "dangerous" in Kconfig
* Fix atomic sequence handling
* Pass a 40us delay (instead of 0us) to readl_poll_timeout()
- fsl:
* fix a typo in a function name
* add support for IP variants embedded in the ls2080a and ls1080a
SoCs
- stm32: request exclusive control of the reset line
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Merge tag 'spi-nor/for-4.18' of git://git.infradead.org/linux-mtd into mtd/next
Core changes:
- Add support for a bunch of SPI NOR chips
- Clear EAR reg when switching to 3-byte addressing mode on Winbond
chips
SPI NOR controller driver changes:
- cadence: Add DMA support for direct mode reads
- hisi: Prefix a few functions with hisi_
- intel:
* Mark the driver as "dangerous" in Kconfig
* Fix atomic sequence handling
* Pass a 40us delay (instead of 0us) to readl_poll_timeout()
- fsl:
* fix a typo in a function name
* add support for IP variants embedded in the ls2080a and ls1080a
SoCs
- stm32: request exclusive control of the reset line
|
||
|
Boris Brezillon
|
6e89b84e28 |
Core changes:
- Add Miquel as a NAND maintainer
- Add access mode to the nand_page_io_req struct
- Fix kernel-doc in rawnand.h
- Support bit-wise majority to recover from corrupted ONFI parameter
pages
- Stop checking FAIL bit after a SET_FEATURES, as documented in the
ONFI spec
Raw NAND Driver changes:
- Fix and cleanup the error path of many NAND controller drivers
- GPMI:
* Cleanup/simplification of a few aspects in the driver
* Take ECC setup specified in the DT into account
- sunxi: remove support for GPIO-based R/B polling
- MTK:
* Use of_device_get_match_data() instead of of_match_device()
* Add an entry in MAINTAINERS for this driver
* Fix nand-ecc-step-size and nand-ecc-strength description in the DT
bindings doc
- fsl_ifc: fix ->cmdfunc() to read more than one ONFI parameter page
OneNAND driver changes:
- samsung: use dev_get_drvdata() instead of platform_get_drvdata()
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Merge tag 'nand/for-4.18' of git://git.infradead.org/linux-mtd into mtd/next
Core changes:
- Add Miquel as a NAND maintainer
- Add access mode to the nand_page_io_req struct
- Fix kernel-doc in rawnand.h
- Support bit-wise majority to recover from corrupted ONFI parameter
pages
- Stop checking FAIL bit after a SET_FEATURES, as documented in the
ONFI spec
Raw NAND Driver changes:
- Fix and cleanup the error path of many NAND controller drivers
- GPMI:
* Cleanup/simplification of a few aspects in the driver
* Take ECC setup specified in the DT into account
- sunxi: remove support for GPIO-based R/B polling
- MTK:
* Use of_device_get_match_data() instead of of_match_device()
* Add an entry in MAINTAINERS for this driver
* Fix nand-ecc-step-size and nand-ecc-strength description in the DT
bindings doc
- fsl_ifc: fix ->cmdfunc() to read more than one ONFI parameter page
OneNAND driver changes:
- samsung: use dev_get_drvdata() instead of platform_get_drvdata()
|
||
|
Linus Torvalds
|
3a979e8c07 |
- Remove HAS_DMA config dependencies
- New STMicroelectronics STM32 IPCC driver - Enable QCom driver to run more controllers - Fixed return code from null to ptr-err for Brcm driver - Fix kconfig dependencies for the HiSilicon driver -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE6EwehDt/SOnwFyTyf9lkf8eYP5UFAlsYFY4ACgkQf9lkf8eY P5VhPQ/8DbyMaI2U5Hejj+nLSerDJgi8CfuSqEJbZF5qXktNH7neKyTIo7m3v2TK d0U900s2/kT5f57gerT5OypyBTT9tn6E2MR/WHBGqLxF/BHeKY3ftICRQRVLeICP 3btM2QRfMG0e0s0t39zib8FG7HNhV3zDHraCmgW0MizCaV2+kMuk0LlzRrPXlwah CuhbkTNCgD1R/G2TQmddfXsblTgSieBrswkzvLk9S5SedO+glO8oM2AkpYo30fqC V5YHxeY8PWA4jmkw2bXHW3vbw2p1dtwMdixDkAnBBaqz3W+oD3DLSUzYeiT6QIMx lBRMDv5/1Py/fQ4N+20oFiUC7XbTiFTWY+FBPUVckxHm5RRNN7jfceMHttqfxV6m OtVeB2pbYSZfPHZ2TqhfzzF84ZexhyfZiPgh6aI09PSaYc83yn4VBWaAwirVYnSi hSCJM/iG1QHi+4E24mYrbEkRaHqpRE7HxBR7FFsNU0BCn/1LP4oXBZQ63dDqgpa2 URAx4dCBNmzIEKtWpkuVaxkerYqJB81+oMKvFNNqjd2+vthVNNDrBxBNRgyyAUyY feSlIiIm9JBfwMPUHGc6buY7VjoC4NwJZmkbVDImDPb/aKWN4uKCgnn8R28lN/j4 ta9tZYfLjCPt3Bs1kDAQ+gCGKU9xsLwiTSoDOhCqukqirhbNhX8= =Eao7 -----END PGP SIGNATURE----- Merge tag 'mailbox-v4.18' of git://git.linaro.org/landing-teams/working/fujitsu/integration Pull mailbox updates from Jassi Brar: - Remove HAS_DMA config dependencies - New STMicroelectronics STM32 IPCC driver - Enable QCom driver to run more controllers - Fixed return code from null to ptr-err for Brcm driver - Fix kconfig dependencies for the HiSilicon driver * tag 'mailbox-v4.18' of git://git.linaro.org/landing-teams/working/fujitsu/integration: mailbox/drivers/hisi: Consolidate the Kconfig for the MAILBOX mailbox: Add support for Qualcomm SDM845 SoCs dt-bindings: mailbox: Add APSS shared binding for SDM845 SoCs mailbox: bcm2835: Fix of_xlate return value mailbox: qcom: Add msm8998 hmss compatible mailbox: add STMicroelectronics STM32 IPCC driver dt-bindings: mailbox: add STMicroelectronics STM32 IPCC binding mailbox: Remove depends on HAS_DMA in case of platform dependency |
||
|
Linus Torvalds
|
a1cdde8c41 |
4.18 Merge window pull request
This has been a quiet cycle for RDMA, the big bulk is the usual smallish
driver updates and bug fixes. About four new uAPI related things. Not as much
Szykaller patches this time, the bugs it finds are getting harder to fix.
- More work cleaning up the RDMA CM code
- Usual driver bug fixes and cleanups for qedr, qib, hfi1, hns, i40iw, iw_cxgb4, mlx5, rxe
- Driver specific resource tracking and reporting via netlink
- Continued work for name space support from Parav
- MPLS support for the verbs flow steering uAPI
- A few tricky IPoIB fixes improving robustness
- HFI1 driver support for the '16B' management packet format
- Some auditing to not print kernel pointers via %llx or similar
- Mark the entire 'UCM' user-space interface as BROKEN with the intent to remove it
entirely. The user space side of this was long ago replaced with RDMA-CM and
syzkaller is finding bugs in the residual UCM interface nobody wishes to fix because
nobody uses it.
- Purge more bogus BUG_ON's from Leon
- 'flow counters' verbs uAPI
- T10 fixups for iser/isert, these are Acked by Martin but going through the RDMA
tree due to dependencies
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"This has been a quiet cycle for RDMA, the big bulk is the usual
smallish driver updates and bug fixes. About four new uAPI related
things. Not as much Szykaller patches this time, the bugs it finds are
getting harder to fix.
Summary:
- More work cleaning up the RDMA CM code
- Usual driver bug fixes and cleanups for qedr, qib, hfi1, hns,
i40iw, iw_cxgb4, mlx5, rxe
- Driver specific resource tracking and reporting via netlink
- Continued work for name space support from Parav
- MPLS support for the verbs flow steering uAPI
- A few tricky IPoIB fixes improving robustness
- HFI1 driver support for the '16B' management packet format
- Some auditing to not print kernel pointers via %llx or similar
- Mark the entire 'UCM' user-space interface as BROKEN with the
intent to remove it entirely. The user space side of this was long
ago replaced with RDMA-CM and syzkaller is finding bugs in the
residual UCM interface nobody wishes to fix because nobody uses it.
- Purge more bogus BUG_ON's from Leon
- 'flow counters' verbs uAPI
- T10 fixups for iser/isert, these are Acked by Martin but going
through the RDMA tree due to dependencies"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (138 commits)
RDMA/mlx5: Update SPDX tags to show proper license
RDMA/restrack: Change SPDX tag to properly reflect license
IB/hfi1: Fix comment on default hdr entry size
IB/hfi1: Rename exp_lock to exp_mutex
IB/hfi1: Add bypass register defines and replace blind constants
IB/hfi1: Remove unused variable
IB/hfi1: Ensure VL index is within bounds
IB/hfi1: Fix user context tail allocation for DMA_RTAIL
IB/hns: Use zeroing memory allocator instead of allocator/memset
infiniband: fix a possible use-after-free bug
iw_cxgb4: add INFINIBAND_ADDR_TRANS dependency
IB/isert: use T10-PI check mask definitions from core layer
IB/iser: use T10-PI check mask definitions from core layer
RDMA/core: introduce check masks for T10-PI offload
IB/isert: fix T10-pi check mask setting
IB/mlx5: Add counters read support
IB/mlx5: Add flow counters read support
IB/mlx5: Add flow counters binding support
IB/mlx5: Add counters create and destroy support
IB/uverbs: Add support for flow counters
...
|
||
|
Linus Torvalds
|
3a3869f1c4 |
pci-v4.18-changes
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Merge tag 'pci-v4.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- unify AER decoding for native and ACPI CPER sources (Alexandru
Gagniuc)
- add TLP header info to AER tracepoint (Thomas Tai)
- add generic pcie_wait_for_link() interface (Oza Pawandeep)
- handle AER ERR_FATAL by removing and re-enumerating devices, as
Downstream Port Containment does (Oza Pawandeep)
- factor out common code between AER and DPC recovery (Oza Pawandeep)
- stop triggering DPC for ERR_NONFATAL errors (Oza Pawandeep)
- share ERR_FATAL recovery path between AER and DPC (Oza Pawandeep)
- disable ASPM L1.2 substate if we don't have LTR (Bjorn Helgaas)
- respect platform ownership of LTR (Bjorn Helgaas)
- clear interrupt status in top half to avoid interrupt storm (Oza
Pawandeep)
- neaten pci=earlydump output (Andy Shevchenko)
- avoid errors when extended config space inaccessible (Gilles Buloz)
- prevent sysfs disable of device while driver attached (Christoph
Hellwig)
- use core interface to report PCIe link properties in bnx2x, bnxt_en,
cxgb4, ixgbe (Bjorn Helgaas)
- remove unused pcie_get_minimum_link() (Bjorn Helgaas)
- fix use-before-set error in ibmphp (Dan Carpenter)
- fix pciehp timeouts caused by Command Completed errata (Bjorn
Helgaas)
- fix refcounting in pnv_php hotplug (Julia Lawall)
- clear pciehp Presence Detect and Data Link Layer Status Changed on
resume so we don't miss hotplug events (Mika Westerberg)
- only request pciehp control if we support it, so platform can use
ACPI hotplug otherwise (Mika Westerberg)
- convert SHPC to be builtin only (Mika Westerberg)
- request SHPC control via _OSC if we support it (Mika Westerberg)
- simplify SHPC handoff from firmware (Mika Westerberg)
- fix an SHPC quirk that mistakenly included *all* AMD bridges as well
as devices from any vendor with device ID 0x7458 (Bjorn Helgaas)
- assign a bus number even to non-native hotplug bridges to leave
space for acpiphp additions, to fix a common Thunderbolt xHCI
hot-add failure (Mika Westerberg)
- keep acpiphp from scanning native hotplug bridges, to fix common
Thunderbolt hot-add failures (Mika Westerberg)
- improve "partially hidden behind bridge" messages from core (Mika
Westerberg)
- add macros for PCIe Link Control 2 register (Frederick Lawler)
- replace IB/hfi1 custom macros with PCI core versions (Frederick
Lawler)
- remove dead microblaze and xtensa code (Bjorn Helgaas)
- use dev_printk() when possible in xtensa and mips (Bjorn Helgaas)
- remove unused pcie_port_acpi_setup() and portdrv_acpi.c (Bjorn
Helgaas)
- add managed interface to get PCI host bridge resources from OF (Jan
Kiszka)
- add support for unbinding generic PCI host controller (Jan Kiszka)
- fix memory leaks when unbinding generic PCI host controller (Jan
Kiszka)
- request legacy VGA framebuffer only for VGA devices to avoid false
device conflicts (Bjorn Helgaas)
- turn on PCI_COMMAND_IO & PCI_COMMAND_MEMORY in pci_enable_device()
like everybody else, not in pcibios_fixup_bus() (Bjorn Helgaas)
- add generic enable function for simple SR-IOV hardware (Alexander
Duyck)
- use generic SR-IOV enable for ena, nvme (Alexander Duyck)
- add ACS quirk for Intel 7th & 8th Gen mobile (Alex Williamson)
- add ACS quirk for Intel 300 series (Mika Westerberg)
- enable register clock for Armada 7K/8K (Gregory CLEMENT)
- reduce Keystone "link already up" log level (Fabio Estevam)
- move private DT functions to drivers/pci/ (Rob Herring)
- factor out dwc CONFIG_PCI Kconfig dependencies (Rob Herring)
- add DesignWare support to the endpoint test driver (Gustavo
Pimentel)
- add DesignWare support for endpoint mode (Gustavo Pimentel)
- use devm_ioremap_resource() instead of devm_ioremap() in dra7xx and
artpec6 (Gustavo Pimentel)
- fix Qualcomm bitwise NOT issue (Dan Carpenter)
- add Qualcomm runtime PM support (Srinivas Kandagatla)
- fix DesignWare enumeration below bridges (Koen Vandeputte)
- use usleep() instead of mdelay() in endpoint test (Jia-Ju Bai)
- add configfs entries for pci_epf_driver device IDs (Kishon Vijay
Abraham I)
- clean up pci_endpoint_test driver (Gustavo Pimentel)
- update Layerscape maintainer email addresses (Minghuan Lian)
- add COMPILE_TEST to improve build test coverage (Rob Herring)
- fix Hyper-V bus registration failure caused by domain/serial number
confusion (Sridhar Pitchai)
- improve Hyper-V refcounting and coding style (Stephen Hemminger)
- avoid potential Hyper-V hang waiting for a response that will never
come (Dexuan Cui)
- implement Mediatek chained IRQ handling (Honghui Zhang)
- fix vendor ID & class type for Mediatek MT7622 (Honghui Zhang)
- add Mobiveil PCIe host controller driver (Subrahmanya Lingappa)
- add Mobiveil MSI support (Subrahmanya Lingappa)
- clean up clocks, MSI, IRQ mappings in R-Car probe failure paths
(Marek Vasut)
- poll more frequently (5us vs 5ms) while waiting for R-Car data link
active (Marek Vasut)
- use generic OF parsing interface in R-Car (Vladimir Zapolskiy)
- add R-Car V3H (R8A77980) "compatible" string (Sergei Shtylyov)
- add R-Car gen3 PHY support (Sergei Shtylyov)
- improve R-Car PHYRDY polling (Sergei Shtylyov)
- clean up R-Car macros (Marek Vasut)
- use runtime PM for R-Car controller clock (Dien Pham)
- update arm64 defconfig for Rockchip (Shawn Lin)
- refactor Rockchip code to facilitate both root port and endpoint
mode (Shawn Lin)
- add Rockchip endpoint mode driver (Shawn Lin)
- support VMD "membar shadow" feature (Jon Derrick)
- support VMD bus number offsets (Jon Derrick)
- add VMD "no AER source ID" quirk for more device IDs (Jon Derrick)
- remove unnecessary host controller CONFIG_PCIEPORTBUS Kconfig
selections (Bjorn Helgaas)
- clean up quirks.c organization and whitespace (Bjorn Helgaas)
* tag 'pci-v4.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (144 commits)
PCI/AER: Replace struct pcie_device with pci_dev
PCI/AER: Remove unused parameters
PCI: qcom: Include gpio/consumer.h
PCI: Improve "partially hidden behind bridge" log message
PCI: Improve pci_scan_bridge() and pci_scan_bridge_extend() doc
PCI: Move resource distribution for single bridge outside loop
PCI: Account for all bridges on bus when distributing bus numbers
ACPI / hotplug / PCI: Drop unnecessary parentheses
ACPI / hotplug / PCI: Mark stale PCI devices disconnected
ACPI / hotplug / PCI: Don't scan bridges managed by native hotplug
PCI: hotplug: Add hotplug_is_native()
PCI: shpchp: Add shpchp_is_native()
PCI: shpchp: Fix AMD POGO identification
PCI: mobiveil: Add MSI support
PCI: mobiveil: Add Mobiveil PCIe Host Bridge IP driver
PCI/AER: Decode Error Source Requester ID
PCI/AER: Remove aer_recover_work_func() forward declaration
PCI/DPC: Use the generic pcie_do_fatal_recovery() path
PCI/AER: Pass service type to pcie_do_fatal_recovery()
PCI/DPC: Disable ERR_NONFATAL handling by DPC
...
|
||
|
Linus Torvalds
|
3036bc4536 |
media updates for v4.18-rc1
-----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJbGDjcAAoJEAhfPr2O5OEV1KwP/Am2n5Ehc2W0/DLD3K7LlwgN 8JnMPWNQTCreLRgJD0/KX+HH1M+yBJ05KF/Glm7fcOKpOhWqrUbPgtiQT0GyHHBB uvmQfGJrRvCrP+1S1SeWtNhItsyWvCfDaorzsTWJYEF/F9Wtj/Sj92DC1y/BKQaR Rcs4yeCqlFEp3rjbXExanFhA3/XeMzK2sby8c51cILTZPkWI64qrHcZRWOW7+zZ6 fKEVDNOKxa7sfg8I9yaI73lBGXBpCJxLROloJ3jEtuH5gY3nR6PZdXunBC5K0+pX UH1vUeBcS/3ExQWL0zmCqHz1aYb6kzTSbIPs+NktxyzTTb8FDjT9JhV/9AxhEQfK iIxv81LRBdbEoPxbvx88sj5VVvlRla/NRv03WsXhhVDqx2SZJuNgSXw3XJtGDx3j AuUur0AQH4KMNNmwxmyn6wbhm7N63AaGbmYE2sRmaL7lk6b48BSbsUpOM5AMWzZe ZsESSsoqjRR86zFtVVzI7ZImCk16D6mNRP94Z0DQReWAJ6zS57/EYfKZ+pEQ6mww IyoJalD+pBe160fqsSo59F4k2fqzsqP4p8m29OQWFvyl7+UboMBz7FscWfyT98+R MbJolZ8QJNlOVaOusxPYLfdfjVmkHCt4E0cBZVFYIvliTGd5QiKqHAW+kTYQH0No Y0nHm4bShsUY8I9YCgsk =r/WP -----END PGP SIGNATURE----- Merge tag 'media/v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - remove of atomisp driver from staging, as nobody would have time to dedicate huge efforts to fix all the problems there. Also, we have a feeling that the driver may not even run the way it is. - move Zoran driver to staging, in order to be either fixed to use VB2 and the proper media kAPIs or to be removed - remove videobuf-dvb driver, with is unused for a while - some V4L2 documentation fixes/improvements - new sensor drivers: imx258 and ov7251 - a new driver was added to allow using I2C transparent drivers - several improvements at the ddbridge driver - several improvements at the ISDB pt1 driver, making it more coherent with the DVB framework - added a new platform driver for MIPI CSI-2 RX: cadence - now, all media drivers can be compiled on x86 with COMPILE_TEST - almost all media drivers now build on non-x86 architectures with COMPILE_TEST - lots of other random stuff: cleanups, support for new board models, bug fixes, etc * tag 'media/v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (464 commits) media: omap2: fix compile-testing with FB_OMAP2=m media: media/radio/Kconfig: add back RADIO_ISA media: v4l2-ioctl.c: fix missing unlock in __video_do_ioctl() media: pxa_camera: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power media: arch: sh: migor: Fix TW9910 PDN gpio media: staging: tegra-vde: Reset VDE regardless of memory client resetting failure media: marvel-ccic: mmp: select VIDEOBUF2_VMALLOC/DMA_CONTIG media: marvel-ccic: allow ccic and mmp drivers to coexist media: uvcvideo: Prevent setting unavailable flags media: ddbridge: conditionally enable fast TS for stv0910-equipped bridges media: dvb-frontends/stv0910: make TS speed configurable media: ddbridge/mci: add identifiers to function definition arguments media: ddbridge/mci: protect against out-of-bounds array access in stop() media: rc: ensure input/lirc device can be opened after register media: rc: nuvoton: Keep device enabled during reg init media: rc: nuvoton: Keep track of users on CIR enable/disable media: rc: nuvoton: Tweak the interrupt enabling dance media: uvcvideo: Support realtek's UVC 1.5 device media: uvcvideo: Fix driver reference counting media: gspca_zc3xx: Enable short exposure times for OV7648 ... |
||
|
Linus Torvalds
|
c90fca951e |
powerpc updates for 4.18
Notable changes:
- Support for split PMD page table lock on 64-bit Book3S (Power8/9).
- Add support for HAVE_RELIABLE_STACKTRACE, so we properly support live
patching again.
- Add support for patching barrier_nospec in copy_from_user() and syscall entry.
- A couple of fixes for our data breakpoints on Book3S.
- A series from Nick optimising TLB/mm handling with the Radix MMU.
- Numerous small cleanups to squash sparse/gcc warnings from Mathieu Malaterre.
- Several series optimising various parts of the 32-bit code from Christophe Leroy.
- Removal of support for two old machines, "SBC834xE" and "C2K" ("GEFanuc,C2K"),
which is why the diffstat has so many deletions.
And many other small improvements & fixes.
There's a few out-of-area changes. Some minor ftrace changes OK'ed by Steve, and
a fix to our powernv cpuidle driver. Then there's a series touching mm, x86 and
fs/proc/task_mmu.c, which cleans up some details around pkey support. It was
ack'ed/reviewed by Ingo & Dave and has been in next for several weeks.
Thanks to:
Akshay Adiga, Alastair D'Silva, Alexey Kardashevskiy, Al Viro, Andrew
Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Arnd Bergmann, Balbir Singh,
Cédric Le Goater, Christophe Leroy, Christophe Lombard, Colin Ian King, Dave
Hansen, Fabio Estevam, Finn Thain, Frederic Barrat, Gautham R. Shenoy, Haren
Myneni, Hari Bathini, Ingo Molnar, Jonathan Neuschäfer, Josh Poimboeuf,
Kamalesh Babulal, Madhavan Srinivasan, Mahesh Salgaonkar, Mark Greer, Mathieu
Malaterre, Matthew Wilcox, Michael Neuling, Michal Suchanek, Naveen N. Rao,
Nicholas Piggin, Nicolai Stange, Olof Johansson, Paul Gortmaker, Paul
Mackerras, Peter Rosin, Pridhiviraj Paidipeddi, Ram Pai, Rashmica Gupta, Ravi
Bangoria, Russell Currey, Sam Bobroff, Samuel Mendoza-Jonas, Segher
Boessenkool, Shilpasri G Bhat, Simon Guo, Souptick Joarder, Stewart Smith,
Thiago Jung Bauermann, Torsten Duwe, Vaibhav Jain, Wei Yongjun, Wolfram Sang,
Yisheng Xie, YueHaibing.
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Merge tag 'powerpc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Notable changes:
- Support for split PMD page table lock on 64-bit Book3S (Power8/9).
- Add support for HAVE_RELIABLE_STACKTRACE, so we properly support
live patching again.
- Add support for patching barrier_nospec in copy_from_user() and
syscall entry.
- A couple of fixes for our data breakpoints on Book3S.
- A series from Nick optimising TLB/mm handling with the Radix MMU.
- Numerous small cleanups to squash sparse/gcc warnings from Mathieu
Malaterre.
- Several series optimising various parts of the 32-bit code from
Christophe Leroy.
- Removal of support for two old machines, "SBC834xE" and "C2K"
("GEFanuc,C2K"), which is why the diffstat has so many deletions.
And many other small improvements & fixes.
There's a few out-of-area changes. Some minor ftrace changes OK'ed by
Steve, and a fix to our powernv cpuidle driver. Then there's a series
touching mm, x86 and fs/proc/task_mmu.c, which cleans up some details
around pkey support. It was ack'ed/reviewed by Ingo & Dave and has
been in next for several weeks.
Thanks to: Akshay Adiga, Alastair D'Silva, Alexey Kardashevskiy, Al
Viro, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Arnd
Bergmann, Balbir Singh, Cédric Le Goater, Christophe Leroy, Christophe
Lombard, Colin Ian King, Dave Hansen, Fabio Estevam, Finn Thain,
Frederic Barrat, Gautham R. Shenoy, Haren Myneni, Hari Bathini, Ingo
Molnar, Jonathan Neuschäfer, Josh Poimboeuf, Kamalesh Babulal,
Madhavan Srinivasan, Mahesh Salgaonkar, Mark Greer, Mathieu Malaterre,
Matthew Wilcox, Michael Neuling, Michal Suchanek, Naveen N. Rao,
Nicholas Piggin, Nicolai Stange, Olof Johansson, Paul Gortmaker, Paul
Mackerras, Peter Rosin, Pridhiviraj Paidipeddi, Ram Pai, Rashmica
Gupta, Ravi Bangoria, Russell Currey, Sam Bobroff, Samuel
Mendoza-Jonas, Segher Boessenkool, Shilpasri G Bhat, Simon Guo,
Souptick Joarder, Stewart Smith, Thiago Jung Bauermann, Torsten Duwe,
Vaibhav Jain, Wei Yongjun, Wolfram Sang, Yisheng Xie, YueHaibing"
* tag 'powerpc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (251 commits)
powerpc/64s/radix: Fix missing ptesync in flush_cache_vmap
cpuidle: powernv: Fix promotion from snooze if next state disabled
powerpc: fix build failure by disabling attribute-alias warning in pci_32
ocxl: Fix missing unlock on error in afu_ioctl_enable_p9_wait()
powerpc-opal: fix spelling mistake "Uniterrupted" -> "Uninterrupted"
powerpc: fix spelling mistake: "Usupported" -> "Unsupported"
powerpc/pkeys: Detach execute_only key on !PROT_EXEC
powerpc/powernv: copy/paste - Mask SO bit in CR
powerpc: Remove core support for Marvell mv64x60 hostbridges
powerpc/boot: Remove core support for Marvell mv64x60 hostbridges
powerpc/boot: Remove support for Marvell mv64x60 i2c controller
powerpc/boot: Remove support for Marvell MPSC serial controller
powerpc/embedded6xx: Remove C2K board support
powerpc/lib: optimise PPC32 memcmp
powerpc/lib: optimise 32 bits __clear_user()
powerpc/time: inline arch_vtime_task_switch()
powerpc/Makefile: set -mcpu=860 flag for the 8xx
powerpc: Implement csum_ipv6_magic in assembly
powerpc/32: Optimise __csum_partial()
powerpc/lib: Adjust .balign inside string functions for PPC32
...
|
||
|
Linus Torvalds
|
c0ab85267e |
Microblaze patches for 4.18-rc1
- Fix simpleImage format generation - Remove earlyprintk support and replace it by earlycon -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEABECAAYFAlsZD6MACgkQykllyylKDCFnVACfRC5ZhWzIBEGIXlLE0/kqz/Mo ieEAnR+1zc3Ow3FQrN5mzdjox0Ndk6hC =RO4f -----END PGP SIGNATURE----- Merge tag 'microblaze-v4.18-rc1' of git://git.monstr.eu/linux-2.6-microblaze Pull microblaze updates from Michal Simek: - Fix simpleImage format generation - Remove earlyprintk support and replace it by earlycon * tag 'microblaze-v4.18-rc1' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: dts: replace 'linux,stdout-path' with 'stdout-path' microblaze: remove redundant early_printk support microblaze: remove unnecessary prom.h includes microblaze: Fix simpleImage format generation |
||
|
Jeremy Linton
|
e156ab71a9 |
arm64: topology: Avoid checking numa mask for scheduler MC selection
The numa mask subset check can often lead to system hang or crash during CPU hotplug and system suspend operation if NUMA is disabled. This is mostly observed on HMP systems where the CPU compute capacities are different and ends up in different scheduler domains. Since cpumask_of_node is returned instead core_sibling, the scheduler is confused with incorrect cpumasks(e.g. one CPU in two different sched domains at the same time) on CPU hotplug. Lets disable the NUMA siblings checks for the time being, as NUMA in socket machines have LLC's that will assure that the scheduler topology isn't "borken". The NUMA check exists to assure that if a LLC within a socket crosses NUMA nodes/chiplets the scheduler domains remain consistent. This code will likely have to be re-enabled in the near future once the NUMA mask story is sorted. At the moment its not necessary because the NUMA in socket machines LLC's are contained within the NUMA domains. Further, as a defensive mechanism during hot-plug, lets assure that the LLC siblings are also masked. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> |