yangerkun d81e341fb1 ext4: refresh the ext4_ext_path struct after dropping i_data_sem. ... commit 1811bc401a upstream. After we drop i_data sem, we need to reload the ext4_ext_path structure since the extent tree can change once i_data_sem is released. This addresses the BUG: [52117.465187] ------------[ cut here ]------------ [52117.465686] kernel BUG at fs/ext4/extents.c:1756! ... [52117.478306] Call Trace: [52117.478565] ext4_ext_shift_extents+0x3ee/0x710 [52117.479020] ext4_fallocate+0x139c/0x1b40 [52117.479405] ? __do_sys_newfstat+0x6b/0x80 [52117.479805] vfs_fallocate+0x151/0x4b0 [52117.480177] ksys_fallocate+0x4a/0xa0 [52117.480533] __x64_sys_fallocate+0x22/0x30 [52117.480930] do_syscall_64+0x35/0x80 [52117.481277] entry_SYSCALL_64_after_hwframe+0x44/0xae [52117.481769] RIP: 0033:0x7fa062f855ca Cc: stable@kernel.org Link: https://lore.kernel.org/r/20210903062748.4118886-4-yangerkun@huawei.com Signed-off-by: yangerkun <yangerkun@huawei.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-11-18 14:03:40 +01:00
..
acl.c	ext4: main fast-commit commit path	2020-10-21 23:22:37 -04:00
acl.h
balloc.c	ext4: shrink race window in ext4_should_retry_alloc()	2021-04-07 15:00:03 +02:00
bitmap.c
block_validity.c	ext4: rename system_blks to s_system_blks inside ext4_sb_info	2020-10-18 10:36:59 -04:00
dir.c	ext4: fix potential infinite loop in ext4_dx_readdir()	2021-10-06 15:56:02 +02:00
ext4.h	ext4: fix memory leak in ext4_fill_super	2021-07-19 09:45:03 +02:00
ext4_extents.h	ext4: fix EXT_MAX_EXTENT/INDEX to check for zeroed eh_max	2020-06-03 23:16:49 -04:00
ext4_jbd2.c	ext4: fast commit recovery path	2020-10-21 23:22:38 -04:00
ext4_jbd2.h	ext4: drop ext4_journal_free_reserved()	2020-06-03 23:16:53 -04:00
extents.c	ext4: refresh the ext4_ext_path struct after dropping i_data_sem.	2021-11-18 14:03:40 +01:00
extents_status.c	ext4: remove check for zero nr_to_scan in ext4_es_scan()	2021-07-14 16:55:41 +02:00
extents_status.h	ext4: fix extent_status trace points	2020-01-25 02:03:03 -05:00
fast_commit.c	ext4: limit the number of blocks in one ADD_RANGE TLV	2021-10-06 15:56:01 +02:00
fast_commit.h	ext4: fix fast commit alignment issues	2021-06-10 13:39:26 +02:00
file.c	ext4: Fix occasional generic/418 failure	2021-05-11 14:47:38 +02:00
fsmap.c	treewide: Change list_sort to use const pointers	2021-09-30 10:11:04 +02:00
fsmap.h
fsync.c	ext4: make s_mount_flags modifications atomic	2020-11-06 23:01:05 -05:00
hash.c	ext4: use generic casefolding support	2020-10-28 13:43:13 -04:00
ialloc.c	ext4: fix avefreec in find_group_orlov	2021-07-14 16:55:41 +02:00
indirect.c	ext4: use ext4_sb_bread() instead of sb_bread()	2020-10-18 10:37:14 -04:00
inline.c	ext4: correct the error path of ext4_write_inline_data_end()	2021-10-17 10:43:32 +02:00
inode-test.c	kunit: allow kunit tests to be loaded as a module	2020-01-09 16:42:29 -07:00
inode.c	ext4: correct the error path of ext4_write_inline_data_end()	2021-10-17 10:43:32 +02:00
ioctl.c	ext4: allow the dax flag to be set and cleared on inline directories	2021-05-11 14:47:38 +02:00
Kconfig	ext: EXT4_KUNIT_TESTS should depend on EXT4_FS instead of selecting it	2021-03-04 11:38:15 +01:00
Makefile	ext4 / jbd2: add fast commit initialization	2020-10-21 23:22:26 -04:00
mballoc.c	ext4: use ext4_grp_locked_error in mb_find_extent	2021-07-14 16:55:41 +02:00
mballoc.h	ext4: limit the length of per-inode prealloc list	2020-08-19 12:04:36 -04:00
migrate.c	ext4: handle ext4_mark_inode_dirty errors	2020-06-03 23:16:50 -04:00
mmp.c	ext4: fix possible UAF when remounting r/o a mmp-protected file system	2021-11-02 19:48:18 +01:00
move_extent.c	ext4: use common helpers in all places reading metadata buffers	2020-10-18 10:37:14 -04:00
namei.c	ext4: fix potential htree corruption when growing large_dir directories	2021-08-12 13:22:14 +02:00
page-io.c	ext4: add inline encryption support	2020-07-08 10:29:43 -07:00
readpage.c	Improvements to ext4's block allocator performance for very large file	2020-08-21 11:03:38 -07:00
resize.c	ext4: use ext4_sb_bread() instead of sb_bread()	2020-10-18 10:37:14 -04:00
super.c	ext4: fix lazy initialization next schedule time computation in more granular unit	2021-11-18 14:03:40 +01:00
symlink.c	ext4: report correct st_size for encrypted symlinks	2021-09-08 08:48:59 +02:00
sysfs.c	ext4: shrink race window in ext4_should_retry_alloc()	2021-04-07 15:00:03 +02:00
truncate.h	ext4: handle layout changes to pinned DAX mappings	2018-07-29 17:00:22 -04:00
verity.c	ext4: fix error handling in ext4_end_enable_verity()	2021-03-25 09:04:17 +01:00
xattr.c	ext4: add reclaim checks to xattr code	2021-03-30 14:32:08 +02:00
xattr.h	ext4: support xattr gnu.* namespace for the Hurd	2020-06-12 13:23:34 -04:00
xattr_hurd.c	ext4: support xattr gnu.* namespace for the Hurd	2020-06-12 13:23:34 -04:00
xattr_security.c
xattr_trusted.c
xattr_user.c