linux/fs/erofs
Gao Xiang ce06312918 erofs: initialized fields can only be observed after bit is set
Currently, although set_bit() & test_bit() pairs are used as a fast-
path for initialized configurations. However, these atomic ops are
actually relaxed forms. Instead, load-acquire & store-release form is
needed to make sure uninitialized fields won't be observed in advance
here (yet no such corresponding bitops so use full barriers instead.)

Link: https://lore.kernel.org/r/20210209130618.15838-1-hsiangkao@aol.com
Fixes: 62dc45979f ("staging: erofs: fix race of initializing xattrs of a inode at the same time")
Fixes: 152a333a58 ("staging: erofs: add compacted compression indexes support")
Cc: <stable@vger.kernel.org> # 5.3+
Reported-by: Huang Jianan <huangjianan@oppo.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
2021-02-11 11:55:28 +08:00
..
compress.h erofs: force inplace I/O under low memory scenario 2020-12-09 20:42:02 +08:00
data.c erofs: avoid using generic_block_bmap 2020-12-10 11:07:40 +08:00
decompressor.c erofs: get rid of magical Z_EROFS_MAPPING_STAGING 2020-12-08 18:08:21 +08:00
dir.c erofs: Replace HTTP links with HTTPS ones 2020-08-03 21:04:29 +08:00
erofs_fs.h erofs: Replace HTTP links with HTTPS ones 2020-08-03 21:04:29 +08:00
inode.c erofs: derive atime instead of leaving it empty 2020-11-04 09:15:33 +08:00
internal.h erofs: Replace HTTP links with HTTPS ones 2020-08-03 21:04:29 +08:00
Kconfig erofs: support superblock checksum 2019-11-24 11:02:41 +08:00
Makefile erofs: remove a void EROFS_VERSION macro set in Makefile 2020-12-08 18:06:06 +08:00
namei.c erofs: Replace HTTP links with HTTPS ones 2020-08-03 21:04:29 +08:00
super.c erofs: fix shift-out-of-bounds of blkszbits 2021-02-11 11:54:57 +08:00
tagptr.h
utils.c erofs: fold in used-once helper erofs_workgroup_unfreeze_final() 2020-08-03 21:04:46 +08:00
xattr.c erofs: initialized fields can only be observed after bit is set 2021-02-11 11:55:28 +08:00
xattr.h erofs: Replace HTTP links with HTTPS ones 2020-08-03 21:04:29 +08:00
zdata.c erofs: force inplace I/O under low memory scenario 2020-12-09 20:42:02 +08:00
zdata.h erofs: get rid of magical Z_EROFS_MAPPING_STAGING 2020-12-08 18:08:21 +08:00
zmap.c erofs: initialized fields can only be observed after bit is set 2021-02-11 11:55:28 +08:00
zpvec.h erofs: Replace HTTP links with HTTPS ones 2020-08-03 21:04:29 +08:00