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05088e5de0
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Canjiang Lu 05088e5de0 mm/slub: remove obsolete comment 
The obsolete comment removed in this patch was introduced by
51df114281 ("slub: Dynamically size kmalloc cache allocations").

I paste related modification from that commit:

+#ifdef CONFIG_NUMA
+       /*
+        * Allocate kmem_cache_node properly from the kmem_cache slab.
+        * kmem_cache_node is separately allocated so no need to
+        * update any list pointers.
+        */
+       temp_kmem_cache_node = kmem_cache_node;

+       kmem_cache_node = kmem_cache_alloc(kmem_cache, GFP_NOWAIT);
+       memcpy(kmem_cache_node, temp_kmem_cache_node, kmem_size);
+
+       kmem_cache_bootstrap_fixup(kmem_cache_node);
+
+       caches++;
+#else
+       /*
+        * kmem_cache has kmem_cache_node embedded and we moved it!
+        * Update the list heads
+        */
+       INIT_LIST_HEAD(&kmem_cache->local_node.partial);
+       list_splice(&temp_kmem_cache->local_node.partial, &kmem_cache->local_node.partial);
+#ifdef CONFIG_SLUB_DEBUG
+       INIT_LIST_HEAD(&kmem_cache->local_node.full);
+       list_splice(&temp_kmem_cache->local_node.full, &kmem_cache->local_node.full);
+#endif

As we can see there're used to distinguish the difference handling
between NUMA/non-NUMA configuration in the original commit.  I think it
doesn't make any sense in current implementation which is placed above
kmem_cache_node = bootstrap(&boot_kmem_cache_node); So maybe it's better
to remove them now?

Link: http://lkml.kernel.org/r/5af26f58.1c69fb81.1be0e.c520SMTPIN_ADDED_BROKEN@mx.google.com
Signed-off-by: Canjiang Lu <canjiang.lu@samsung.com>
Acked-by: 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>
2018-06-07 17:34:34 -07:00
arch media updates for v4.18-rc1 2018-06-07 12:34:37 -07:00
block Changes for 4.18: 2018-06-05 13:24:20 -07:00
certs certs/blacklist_nohashes.c: fix const confusion in certs blacklist 2018-02-21 15:35:43 -08:00
crypto - Introduce arithmetic overflow test helper functions (Rasmus) 2018-06-06 17:27:14 -07:00
Documentation media updates for v4.18-rc1 2018-06-07 12:34:37 -07:00
drivers media updates for v4.18-rc1 2018-06-07 12:34:37 -07:00
firmware kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
fs fs/9p: detect invalid options as much as possible 2018-06-07 17:34:34 -07:00
include fs/dax.c: use new return type vm_fault_t 2018-06-07 17:34:33 -07:00
init Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-06-06 18:39:49 -07:00
ipc Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-06-04 21:02:18 -07:00
kernel powerpc updates for 4.18 2018-06-07 10:23:33 -07:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-06-06 18:39:49 -07:00
LICENSES LICENSES: Add Linux-OpenIB license text 2018-04-27 16:41:53 -06:00
mm mm/slub: remove obsolete comment 2018-06-07 17:34:34 -07:00
net net/9p/trans_xen.c: don't inclide rwlock.h directly 2018-06-07 17:34:34 -07:00
samples samples/bpf: xdpsock: use skb Tx path for XDP_SKB 2018-06-05 15:48:57 +02:00
scripts scripts: use SPDX tag in get_maintainer and checkpatch 2018-06-07 17:34:33 -07:00
security Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-06-06 18:39:49 -07:00
sound media updates for v4.18-rc1 2018-06-07 12:34:37 -07:00
tools powerpc updates for 4.18 2018-06-07 10:23:33 -07:00
usr kbuild: rename built-in.o to built-in.a 2018-03-26 02:01:19 +09:00
virt Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-06-04 15:23:48 -07:00
.clang-format clang-format: add configuration file 2018-04-11 10:28:35 -07:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Add hch to .get_maintainer.ignore 2015-08-21 14:30:10 -07:00
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap Merge branch 'asoc-4.17' into asoc-4.18 for compress dependencies 2018-04-26 12:24:28 +01:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS MAINTAINERS/CREDITS: Drop METAG ARCHITECTURE 2018-03-05 16:34:24 +00:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: add basic helper macros to scripts/Kconfig.include 2018-05-29 03:31:19 +09:00
MAINTAINERS media updates for v4.18-rc1 2018-06-07 12:34:37 -07:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-06-06 18:39:49 -07:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.