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android_kernel_motorola_sm6375/fs/nilfs2
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Filename Latest commit message Latest commit date
Ryusuke Konishi 1e93f93992 nilfs2: fix lockdep warnings during disk space reclamation 
[ Upstream commit 6e211930f79aa45d422009a5f2e5467d2369ffe5 ]

During disk space reclamation, nilfs2 still emits the following lockdep
warning due to page/folio operations on shadowed page caches that nilfs2
uses to get a snapshot of DAT file in memory:

  WARNING: CPU: 0 PID: 2643 at include/linux/backing-dev.h:272 __folio_mark_dirty+0x645/0x670
  ...
  RIP: 0010:__folio_mark_dirty+0x645/0x670
  ...
  Call Trace:
    filemap_dirty_folio+0x74/0xd0
    __set_page_dirty_nobuffers+0x85/0xb0
    nilfs_copy_dirty_pages+0x288/0x510 [nilfs2]
    nilfs_mdt_save_to_shadow_map+0x50/0xe0 [nilfs2]
    nilfs_clean_segments+0xee/0x5d0 [nilfs2]
    nilfs_ioctl_clean_segments.isra.19+0xb08/0xf40 [nilfs2]
    nilfs_ioctl+0xc52/0xfb0 [nilfs2]
    __x64_sys_ioctl+0x11d/0x170

This fixes the remaining warning by using inode objects to hold those
page caches.

Link: https://lkml.kernel.org/r/1647867427-30498-3-git-send-email-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hao Sun <sunhao.th@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-05-25 09:14:33 +02:00
..
alloc.c
alloc.h
bmap.c
bmap.h
btnode.c nilfs2: fix lockdep warnings in page operations for btree nodes 2022-05-25 09:14:33 +02:00
btnode.h nilfs2: fix lockdep warnings in page operations for btree nodes 2022-05-25 09:14:33 +02:00
btree.c nilfs2: fix lockdep warnings in page operations for btree nodes 2022-05-25 09:14:33 +02:00
btree.h
cpfile.c
cpfile.h
dat.c nilfs2: fix lockdep warnings during disk space reclamation 2022-05-25 09:14:33 +02:00
dat.h
dir.c
direct.c
direct.h
export.h
file.c
gcinode.c nilfs2: fix lockdep warnings in page operations for btree nodes 2022-05-25 09:14:33 +02:00
ifile.c
ifile.h
inode.c nilfs2: fix lockdep warnings during disk space reclamation 2022-05-25 09:14:33 +02:00
ioctl.c
Kconfig
Makefile
mdt.c nilfs2: fix lockdep warnings during disk space reclamation 2022-05-25 09:14:33 +02:00
mdt.h nilfs2: fix lockdep warnings during disk space reclamation 2022-05-25 09:14:33 +02:00
namei.c
nilfs.h nilfs2: fix lockdep warnings during disk space reclamation 2022-05-25 09:14:33 +02:00
page.c nilfs2: fix lockdep warnings in page operations for btree nodes 2022-05-25 09:14:33 +02:00
page.h
recovery.c
segbuf.c
segbuf.h
segment.c nilfs2: fix lockdep warnings in page operations for btree nodes 2022-05-25 09:14:33 +02:00
segment.h
sufile.c
sufile.h
super.c nilfs2: fix lockdep warnings in page operations for btree nodes 2022-05-25 09:14:33 +02:00
sysfs.c nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group 2021-09-26 14:07:13 +02:00
sysfs.h
the_nilfs.c
the_nilfs.h