linux/fs/ext4
Ritesh Harjani (IBM) c2a09f3d78 ext4: Fixes len calculation in mpage_journal_page_buffers
Truncate operation can race with writeback, in which inode->i_size can get
truncated and therefore size - folio_pos() can be negative. This fixes the
len calculation. However this path doesn't get easily triggered even
with data journaling.

Cc: stable@kernel.org # v6.5
Fixes: 80be8c5cc9 ("Fixes: ext4: Make mpage_journal_page_buffers use folio")
Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/cff4953b5c9306aba71e944ab176a5d396b9a1b7.1709182250.git.ritesh.list@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2024-05-02 10:50:44 -04:00
..
.kunitconfig
acl.c ext4: convert to ctime accessor functions 2023-07-24 10:29:54 +02:00
acl.h ext4: apply umask if ACL support is disabled 2023-10-05 22:32:15 -04:00
balloc.c ext4: add some kunit stub for mballoc kunit test 2023-10-05 22:32:16 -04:00
bitmap.c ext4: remove useless conditional branch code 2023-04-19 23:39:08 -04:00
block_validity.c ext4: add correct group descriptors and reserved GDT blocks to system zone 2023-08-27 11:27:12 -04:00
crypto.c fscrypt: support crypto data unit size less than filesystem block size 2023-09-25 22:34:33 -07:00
dir.c
ext4_extents.h
ext4_jbd2.c ext4: move ext4_check_bdev_write_error() into nojournal mode 2024-01-04 23:42:21 -05:00
ext4_jbd2.h
ext4.h \n 2024-03-13 14:30:58 -07:00
extents_status.c Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
extents_status.h ext4: make ext4_es_insert_extent() return void 2023-06-26 19:35:12 -04:00
extents.c ext4: fix the comment of ext4_map_blocks()/ext4_ext_map_blocks() 2024-02-21 22:33:21 -05:00
fast_commit.c ext4: make state in ext4_mb_mark_bb to be bool 2023-10-05 22:32:15 -04:00
fast_commit.h
file.c ext4: remove unnecessary parameter "needed" in ext4_discard_preallocations 2024-01-18 10:52:45 -05:00
fsmap.c ext4: port block device access to file 2024-02-25 12:05:26 +01:00
fsmap.h
fsync.c ext4: drop EXT4_MF_FS_ABORTED flag 2023-07-29 18:37:53 -04:00
hash.c ext4: remove redundant checks of s_encoding 2023-08-27 11:27:13 -04:00
ialloc.c ext4: convert to new timestamp accessors 2023-10-18 13:26:21 +02:00
indirect.c ext4: remove unnecessary parameter "needed" in ext4_discard_preallocations 2024-01-18 10:52:45 -05:00
inline.c mm: add folio_zero_tail() and use it in ext4 2023-12-10 16:51:36 -08:00
inode-test.c ext4: convert to ctime accessor functions 2023-07-24 10:29:54 +02:00
inode.c ext4: Fixes len calculation in mpage_journal_page_buffers 2024-05-02 10:50:44 -04:00
ioctl.c ext4: remove unnecessary parameter "needed" in ext4_discard_preallocations 2024-01-18 10:52:45 -05:00
Kconfig fs: add CONFIG_BUFFER_HEAD 2023-08-02 09:13:09 -06:00
Makefile
mballoc-test.c ext4: initialize sbi->s_freeclusters_counter and sbi->s_dirtyclusters_counter before use in kunit test 2024-03-07 13:32:54 -05:00
mballoc.c ext4: remove unused parameter biop in ext4_issue_discard() 2024-03-07 13:32:54 -05:00
mballoc.h ext4: remove unused ext4_allocation_context::ac_groups_considered 2024-01-18 10:52:45 -05:00
migrate.c ext4: avoid deadlock in fs reclaim with page writeback 2023-05-13 18:05:04 -04:00
mmp.c ext4: replace read-only check for shutdown check in mmp code 2023-07-29 18:37:53 -04:00
move_extent.c ext4: remove unnecessary parameter "needed" in ext4_discard_preallocations 2024-01-18 10:52:45 -05:00
namei.c ext4: Configure dentry operations at dentry-creation time 2024-02-27 16:55:34 -05:00
orphan.c
page-io.c fs: convert block_write_full_page to block_write_full_folio 2023-12-29 11:58:35 -08:00
readpage.c ext4: use folio_end_read() 2023-10-18 14:34:16 -07:00
resize.c ext4: enable meta_bg only when new desc blocks are needed 2024-03-07 13:32:54 -05:00
super.c fs,block: yield devices early 2024-03-27 13:17:15 +01:00
symlink.c ext4_get_link(): fix breakage in RCU mode 2024-02-25 02:10:32 -05:00
sysfs.c ext4: Give symbolic names to mballoc criterias 2023-06-26 19:34:56 -04:00
truncate.h
verity.c - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of 2023-04-27 19:42:02 -07:00
xattr_hurd.c
xattr_security.c
xattr_trusted.c
xattr_user.c
xattr.c ext4: drop duplicate ea_inode handling in ext4_xattr_block_set() 2024-03-07 13:32:54 -05:00
xattr.h ext4: move ext4_xattr_handlers to .rodata 2023-10-09 16:24:16 +02:00