AuxXxilium/linux_dsm_epyc7002
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96987eea53
linux_dsm_epyc7002/fs
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Christoph Hellwig 96987eea53 xfs: cancel COW blocks before swapext 
We need to make sure we have no outstanding COW blocks before we swap
extents, as there is nothing preventing us from having preallocated COW
delalloc on either inode that swapext is called on.  That case can
easily be reproduced by running generic/324 in always_cow mode:

[  620.760572] XFS: Assertion failed: tip->i_delayed_blks == 0, file: fs/xfs/xfs_bmap_util.c, line: 1669
[  620.761608] ------------[ cut here ]------------
[  620.762171] kernel BUG at fs/xfs/xfs_message.c:102!
[  620.762732] invalid opcode: 0000 [#1] SMP PTI
[  620.763272] CPU: 0 PID: 24153 Comm: xfs_fsr Tainted: G        W         4.19.0-rc1+ #4182
[  620.764203] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014
[  620.765202] RIP: 0010:assfail+0x20/0x28
[  620.765646] Code: 31 ff e8 83 fc ff ff 0f 0b c3 48 89 f1 41 89 d0 48 c7 c6 48 ca 8d 82 48 89 fa 38
[  620.767758] RSP: 0018:ffffc9000898bc10 EFLAGS: 00010202
[  620.768359] RAX: 0000000000000000 RBX: ffff88012f14ba40 RCX: 0000000000000000
[  620.769174] RDX: 00000000ffffffc0 RSI: 000000000000000a RDI: ffffffff828560d9
[  620.769982] RBP: ffff88012f14b300 R08: 0000000000000000 R09: 0000000000000000
[  620.770788] R10: 000000000000000a R11: f000000000000000 R12: ffffc9000898bc98
[  620.771638] R13: ffffc9000898bc9c R14: ffff880130b5e2b8 R15: ffff88012a1fa2a8
[  620.772504] FS:  00007fdc36e0fbc0(0000) GS:ffff88013ba00000(0000) knlGS:0000000000000000
[  620.773475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  620.774168] CR2: 00007fdc3604d000 CR3: 0000000132afc000 CR4: 00000000000006f0
[  620.774978] Call Trace:
[  620.775274]  xfs_swap_extent_forks+0x2a0/0x2e0
[  620.775792]  xfs_swap_extents+0x38b/0xab0
[  620.776256]  xfs_ioc_swapext+0x121/0x140
[  620.776709]  xfs_file_ioctl+0x328/0xc90
[  620.777154]  ? rcu_read_lock_sched_held+0x50/0x60
[  620.777694]  ? xfs_iunlock+0x233/0x260
[  620.778127]  ? xfs_setattr_nonsize+0x3be/0x6a0
[  620.778647]  do_vfs_ioctl+0x9d/0x680
[  620.779071]  ? ksys_fchown+0x47/0x80
[  620.779552]  ksys_ioctl+0x35/0x70
[  620.780040]  __x64_sys_ioctl+0x11/0x20
[  620.780530]  do_syscall_64+0x4b/0x190
[  620.780927]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  620.781467] RIP: 0033:0x7fdc364d0f07
[  620.781900] Code: b3 66 90 48 8b 05 81 5f 2c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 28
[  620.784044] RSP: 002b:00007ffe2a766038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  620.784896] RAX: ffffffffffffffda RBX: 0000000000000025 RCX: 00007fdc364d0f07
[  620.785667] RDX: 0000560296ca2fc0 RSI: 00000000c0c0586d RDI: 0000000000000005
[  620.786398] RBP: 0000000000000025 R08: 0000000000001200 R09: 0000000000000000
[  620.787283] R10: 0000000000000432 R11: 0000000000000246 R12: 0000000000000005
[  620.788051] R13: 0000000000000000 R14: 0000000000001000 R15: 0000000000000006
[  620.788927] Modules linked in:
[  620.789340] ---[ end trace 9503b7417ffdbdb0 ]---
[  620.790065] RIP: 0010:assfail+0x20/0x28
[  620.790642] Code: 31 ff e8 83 fc ff ff 0f 0b c3 48 89 f1 41 89 d0 48 c7 c6 48 ca 8d 82 48 89 fa 38
[  620.793038] RSP: 0018:ffffc9000898bc10 EFLAGS: 00010202
[  620.793609] RAX: 0000000000000000 RBX: ffff88012f14ba40 RCX: 0000000000000000
[  620.794317] RDX: 00000000ffffffc0 RSI: 000000000000000a RDI: ffffffff828560d9
[  620.795025] RBP: ffff88012f14b300 R08: 0000000000000000 R09: 0000000000000000
[  620.795778] R10: 000000000000000a R11: f000000000000000 R12: ffffc9000898bc98
[  620.796675] R13: ffffc9000898bc9c R14: ffff880130b5e2b8 R15: ffff88012a1fa2a8
[  620.797782] FS:  00007fdc36e0fbc0(0000) GS:ffff88013ba00000(0000) knlGS:0000000000000000
[  620.798908] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  620.799594] CR2: 00007fdc3604d000 CR3: 0000000132afc000 CR4: 00000000000006f0
[  620.800424] Kernel panic - not syncing: Fatal exception
[  620.801191] Kernel Offset: disabled
[  620.801597] ---[ end Kernel panic - not syncing: Fatal exception ]---

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2018-10-18 17:21:55 +11:00
..
9p Pull request for inclusion in 4.19, take two 2018-08-17 17:27:58 -07:00
adfs adfs: use timespec64 for time conversion 2018-08-22 10:52:51 -07:00
affs
afs fs/afs: use new return type vm_fault_t 2018-08-23 18:48:43 -07:00
autofs Merge branch 'akpm' (patches from Andrew) 2018-08-22 12:34:08 -07:00
befs
bfs
btrfs overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
cachefiles
ceph The main things are support for cephx v2 authentication protocol and 2018-08-20 18:26:55 -07:00
cifs cifs: update internal module version number for cifs.ko to 2.12 2018-08-23 15:11:10 -05:00
coda vfs: change inode times to use struct timespec64 2018-06-05 16:57:31 -07:00
configfs
cramfs vfs/y2038: inode timestamps conversion to timespec64 2018-06-15 07:31:07 +09:00
crypto
debugfs
devpts devpts: Convert to new IDA API 2018-08-21 23:54:17 -04:00
dlm
ecryptfs
efivarfs
efs
exofs
exportfs
ext2 Merge branch 'akpm' (patches from Andrew) 2018-08-17 16:49:31 -07:00
ext4 ext4: readpages() should submit IO as read-ahead 2018-08-17 16:20:29 -07:00
f2fs f2fs-for-4.19-rc1 2018-08-22 13:29:39 -07:00
fat fat: propagate 64-bit inode timestamps 2018-08-22 10:52:50 -07:00
freevxfs freevxfs_lookup(): use d_splice_alias() 2018-05-22 14:27:51 -04:00
fscache
fuse fuse update for 4.19 2018-08-21 18:47:36 -07:00
gfs2 gfs2 4.19 merge 2018-08-15 22:40:03 -07:00
hfs hfs: prevent crash on exit from failed search 2018-08-23 18:48:42 -07:00
hfsplus hfsplus: prevent crash on exit from failed search 2018-08-23 18:48:42 -07:00
hostfs vfs: discard ATTR_ATTR_FLAG 2018-08-17 16:20:28 -07:00
hpfs hpfs: remove unnecessary checks on the value of r when assigning error code 2018-08-25 12:42:33 -07:00
hugetlbfs mm: zero out the vma in vma_init() 2018-08-22 10:52:44 -07:00
isofs
jbd2
jffs2
jfs Just one jfs patch for 4.19 2018-08-15 22:47:23 -07:00
kernfs Driver core patches for 4.19-rc1 2018-08-18 11:44:53 -07:00
lockd nfsd: fix leaked file lock with nfs exported overlayfs 2018-08-09 16:11:21 -04:00
minix minix_lookup: use d_splice_alias() 2018-05-22 14:27:52 -04:00
nfs NFS client updates for Linux 4.19 2018-08-23 16:03:58 -07:00
nfs_common
nfsd A mistake on my part caused me to tag my branch 6 commits too early, 2018-08-23 16:00:10 -07:00
nilfs2 fs/nilfs2/file.c: use new return type vm_fault_t 2018-08-22 10:52:49 -07:00
nls
notify Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-08-21 13:47:29 -07:00
ntfs ntfs: mft: remove VLA usage 2018-08-17 16:20:27 -07:00
ocfs2 overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
omfs omfs_lookup(): report IO errors, use d_splice_alias() 2018-05-22 14:27:58 -04:00
openpromfs openpromfs: switch to d_splice_alias() 2018-05-22 14:27:57 -04:00
orangefs orangefs: remove redundant pointer orangefs_inode 2018-08-14 12:07:14 -04:00
overlayfs ovl: set I_CREATING on inode being created 2018-08-22 13:15:25 -07:00
proc Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-08-26 11:25:21 -07:00
pstore
qnx4
qnx6
quota
ramfs
reiserfs reiserfs: fix broken xattr handling (heap corruption, bad retval) 2018-08-22 10:52:50 -07:00
romfs
squashfs
sysfs Driver core patches for 4.19-rc1 2018-08-18 11:44:53 -07:00
sysv fs/sysv/inode.c: use ktime_get_real_seconds() for superblock stamp 2018-08-22 10:52:51 -07:00
tracefs
ubifs ubifs: Remove empty file.h 2018-08-24 13:50:07 +02:00
udf \n 2018-08-17 09:38:39 -07:00
ufs fs/ufs: use ktime_get_real_seconds for sb and cg timestamps 2018-08-17 16:20:27 -07:00
xfs xfs: cancel COW blocks before swapext 2018-10-18 17:21:55 +11:00
aio.c Merge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-08-13 20:56:23 -07:00
anon_inodes.c
attr.c
bad_inode.c get rid of 'opened' argument of ->atomic_open() - part 3 2018-07-12 10:04:20 -04:00
binfmt_aout.c
binfmt_elf_fdpic.c
binfmt_elf.c Here are the main MIPS changes for 4.19. 2018-08-13 19:24:32 -07:00
binfmt_em86.c fs/binfmt_em86.c: fix incompatible pointer type 2016-08-02 19:35:15 -04:00
binfmt_flat.c
binfmt_misc.c
binfmt_script.c exec: load_script: kill the onstack interp[BINPRM_BUF_SIZE] array 2017-10-03 17:54:25 -07:00
block_dev.c for-4.19/block-20180812 2018-08-14 10:23:25 -07:00
buffer.c fs, mm: account buffer_head to kmemcg 2018-08-17 16:20:30 -07:00
char_dev.c block, char_dev: Use correct format specifier for unsigned ints 2018-03-15 17:59:24 +01:00
compat_binfmt_elf.c
compat_ioctl.c media: dvb/audio.h: get rid of unused APIs 2018-07-30 16:21:49 -04:00
compat.c
coredump.c
d_path.c
dax.c libnvdimm-for-4.19_dax-memory-failure 2018-08-25 18:43:59 -07:00
dcache.c fs/dcache.c: fix kmemcheck splat at take_dentry_name_snapshot() 2018-08-17 16:20:28 -07:00
dcookies.c
direct-io.c
drop_caches.c
eventfd.c
eventpoll.c fs/eventpoll.c: simplify ep_is_linked() callers 2018-08-22 10:52:49 -07:00
exec.c Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-08-21 13:47:29 -07:00
fcntl.c signal: Don't send signals to tasks that don't exist 2018-08-15 23:03:20 -05:00
fhandle.c vfs: Copy struct mount.mnt_id to userspace using put_user() 2018-01-15 12:07:51 -08:00
file_table.c overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
file.c
filesystems.c
fs_pin.c Merge branch 'linus' into locking/core, to resolve conflicts 2017-11-07 10:32:44 +01:00
fs_struct.c
fs-writeback.c bdi: Fix oops in wb_workfn() 2018-05-03 16:11:37 -06:00
inode.c overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
internal.h overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
ioctl.c
iomap.c iomap: set page dirty after partial delalloc on mkwrite 2018-09-29 13:51:01 +10:00
Kconfig
Kconfig.binfmt
libfs.c fs, dax: prepare for dax-specific address_space_operations 2018-03-30 11:34:55 -07:00
locks.c overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
Makefile
mbcache.c
mount.h
mpage.c mpage: mpage_readpages() should submit IO as read-ahead 2018-08-17 16:20:29 -07:00
namei.c namei: allow restricted O_CREAT of FIFOs and regular files 2018-08-23 18:48:43 -07:00
namespace.c Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
no-block.c
nsfs.c
open.c overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
pipe.c Merge branch 'work.open3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-08-13 19:58:36 -07:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
read_write.c
readdir.c
select.c
seq_file.c fs/seq_file.c: simplify seq_file iteration code and interface 2018-08-17 16:20:28 -07:00
signalfd.c
splice.c
stack.c
stat.c fs: add do_readlinkat() helper; remove internal call to sys_readlinkat() 2018-04-02 20:15:34 +02:00
statfs.c
super.c Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
sync.c
timerfd.c Merge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-08-13 20:56:23 -07:00
userfaultfd.c mm: Change return type int to vm_fault_t for fault handlers 2018-08-23 18:48:44 -07:00
utimes.c
xattr.c Merge branch 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-08-24 09:25:39 -07:00