Vincent Whitchurch 08bab74ae6 squashfs: fix cache race with migration ...

Migration replaces the page in the mapping before copying the contents and
the flags over from the old page, so check that the page in the page cache
is really up to date before using it.  Without this, stressing squashfs
reads with parallel compaction sometimes results in squashfs reporting
data corruption.

Link: https://lkml.kernel.org/r/20230629-squashfs-cache-migration-v1-1-d50ebe55099d@axis.com
Fixes: e994f5b677ee ("squashfs: cache partial compressed blocks")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Phillip Lougher <phillip@squashfs.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

2023-07-08 09:29:30 -07:00

..

block.c

squashfs: fix cache race with migration

2023-07-08 09:29:30 -07:00

cache.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 35

2019-05-24 17:27:11 +02:00

decompressor_multi_percpu.c

squashfs: don't include buffer_head.h

2023-06-09 17:44:14 -07:00

decompressor_multi.c

squashfs: allows users to configure the number of decompression threads

2022-11-18 13:55:08 -08:00

decompressor_single.c

squashfs: add the mount parameter theads=<single|multi|percpu>

2022-11-18 13:55:08 -08:00

decompressor.c

squashfs: don't include buffer_head.h

2023-06-09 17:44:14 -07:00

decompressor.h

squashfs: extend "page actor" to handle missing pages

2022-06-16 19:58:21 -07:00

dir.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 35

2019-05-24 17:27:11 +02:00

export.c

squashfs: fix inode lookup sanity checks

2021-03-25 09:22:55 -07:00

file_cache.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499

2019-06-19 17:09:53 +02:00

file_direct.c

squashfs: don't call kmalloc in decompressors

2022-08-28 14:02:45 -07:00

file.c

squashfs: fix buffer release race condition in readahead code

2022-10-28 13:37:21 -07:00

fragment.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 35

2019-05-24 17:27:11 +02:00

id.c

squashfs: fix xattr id and id lookup sanity checks

2021-03-25 09:22:55 -07:00

inode.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 35

2019-05-24 17:27:11 +02:00

Kconfig

squashfs: allows users to configure the number of decompression threads

2022-11-18 13:55:08 -08:00

lz4_wrapper.c

squashfs: extend "page actor" to handle missing pages

2022-06-16 19:58:21 -07:00

lzo_wrapper.c

squashfs: extend "page actor" to handle missing pages

2022-06-16 19:58:21 -07:00

Makefile

squashfs: always build "file direct" version of page actor

2022-07-29 18:12:34 -07:00

namei.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 35

2019-05-24 17:27:11 +02:00

page_actor.c

squashfs: fix read regression introduced in readahead code

2022-10-28 13:37:21 -07:00

page_actor.h

squashfs: fix read regression introduced in readahead code

2022-10-28 13:37:21 -07:00

squashfs_fs_i.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 35

2019-05-24 17:27:11 +02:00

squashfs_fs_sb.h

squashfs: cache partial compressed blocks

2023-06-09 17:44:14 -07:00

squashfs_fs.h

Squashfs: fix handling and sanity checking of xattr_ids count

2023-01-31 16:44:10 -08:00

squashfs.h

squashfs: add the mount parameter theads=<single|multi|percpu>

2022-11-18 13:55:08 -08:00

super.c

squashfs: cache partial compressed blocks

2023-06-09 17:44:14 -07:00

symlink.c

squashfs: Convert squashfs to read_folio

2022-05-09 16:21:46 -04:00

xattr_id.c

revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"

2023-02-03 17:52:25 -08:00

xattr.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 35

2019-05-24 17:27:11 +02:00

xattr.h

Squashfs: fix handling and sanity checking of xattr_ids count

2023-01-31 16:44:10 -08:00

xz_wrapper.c

squashfs: extend "page actor" to handle missing pages

2022-06-16 19:58:21 -07:00

zlib_wrapper.c

squashfs: extend "page actor" to handle missing pages

2022-06-16 19:58:21 -07:00

zstd_wrapper.c

squashfs: extend "page actor" to handle missing pages

2022-06-16 19:58:21 -07:00