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linux/fs/ext4
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yangerkun 1811bc401a ext4: refresh the ext4_ext_path struct after dropping i_data_sem. 
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>
2021-11-04 10:33:24 -04:00
..
.kunitconfig
ext4: add .kunitconfig fragment to enable ext4-specific tests
2021-02-11 23:16:30 -05:00
acl.c
vfs: add rcu argument to ->get_acl() callback
2021-08-18 22:08:24 +02:00
acl.h
vfs: add rcu argument to ->get_acl() callback
2021-08-18 22:08:24 +02:00
balloc.c
ext4: flush background discard kwork when retry allocation
2021-08-30 23:35:53 -04:00
bitmap.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
block_validity.c
ext4: standardize error message in ext4_protect_reserved_inode()
2020-12-17 13:30:55 -05:00
dir.c
ext4: fix potential infinite loop in ext4_dx_readdir()
2021-10-01 00:05:09 -04:00
ext4_extents.h
ext4: fix sparse warnings
2021-08-30 23:36:50 -04:00
ext4_jbd2.c
ext4: Support for checksumming from journal triggers
2021-08-30 23:36:50 -04:00
ext4_jbd2.h
ext4: Support for checksumming from journal triggers
2021-08-30 23:36:50 -04:00
ext4.h
Fix a number of ext4 bugs in fast_commit, inline data, and delayed
2021-10-03 13:56:53 -07:00
extents_status.c
ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit
2021-06-22 21:34:17 -04:00
extents_status.h
ext4: fix extent_status trace points
2020-01-25 02:03:03 -05:00
extents.c
ext4: refresh the ext4_ext_path struct after dropping i_data_sem.
2021-11-04 10:33:24 -04:00
fast_commit.c
ext4: limit the number of blocks in one ADD_RANGE TLV
2021-10-01 00:03:25 -04:00
fast_commit.h
ext4: fix fast commit alignment issues
2021-06-06 10:10:23 -04:00
file.c
In addition to some ext4 bug fixes and cleanups, this cycle we add the
2021-09-02 09:37:09 -07:00
fsmap.c
treewide: Change list_sort to use const pointers
2021-04-08 16:04:22 -07:00
fsmap.h
ext4: fsmap: fix the block/inode bitmap comment
2021-06-24 09:48:29 -04:00
fsync.c
block: use an on-stack bio in blkdev_issue_flush
2021-01-27 09:51:48 -07:00
hash.c
ext4: handle casefolding with encryption
2021-04-05 22:04:20 -04:00
ialloc.c
ext4: Support for checksumming from journal triggers
2021-08-30 23:36:50 -04:00
indirect.c
ext4: Support for checksumming from journal triggers
2021-08-30 23:36:50 -04:00
inline.c
ext4: remove extent cache entries when truncating inline data
2021-09-09 10:52:05 -04:00
inode-test.c
fs: ext4: Modify inode-test.c to use KUnit parameterized testing feature
2020-12-02 16:07:25 -07:00
inode.c
Revert "ext4: enforce buffer head state assertion in ext4_da_map_blocks"
2021-11-04 10:32:34 -04:00
ioctl.c
In addition to some ext4 bug fixes and cleanups, this cycle we add the
2021-09-02 09:37:09 -07:00
Kconfig
ext: EXT4_KUNIT_TESTS should depend on EXT4_FS instead of selecting it
2021-02-11 23:12:59 -05:00
Makefile
ext4: Move orphan inode handling into a separate file
2021-08-30 23:36:51 -04:00
mballoc.c
ext4: fix sparse warnings
2021-08-30 23:36:50 -04:00
mballoc.h
ext4: fix various seppling typos
2021-04-09 23:14:59 -04:00
migrate.c
ext4: fix various seppling typos
2021-04-09 23:14:59 -04:00
mmp.c
ext4: fix potential uninitialized access to retval in kmmpd
2021-07-23 07:31:29 -04:00
move_extent.c
ext4: use common helpers in all places reading metadata buffers
2020-10-18 10:37:14 -04:00
namei.c
ext4: Move orphan inode handling into a separate file
2021-08-30 23:36:51 -04:00
orphan.c
ext4: Improve scalability of ext4 orphan file handling
2021-08-30 23:36:51 -04:00
page-io.c
block: rename BIO_MAX_PAGES to BIO_MAX_VECS
2021-03-11 07:47:48 -07:00
readpage.c
block: Add bio_max_segs
2021-02-26 15:49:51 -07:00
resize.c
ext4: Support for checksumming from journal triggers
2021-08-30 23:36:50 -04:00
super.c
ext4: fix lazy initialization next schedule time computation in more granular unit
2021-11-04 10:33:24 -04:00
symlink.c
ext4: report correct st_size for encrypted symlinks
2021-07-25 20:01:06 -07:00
sysfs.c
ext4: notify sysfs on errors_count value change
2021-06-29 21:06:02 -04:00
truncate.h
ext4: Convert to use mapping->invalidate_lock
2021-07-13 14:29:00 +02:00
verity.c
New features for ext4 this cycle include support for encrypted
2021-04-30 15:35:30 -07:00
xattr_hurd.c
acl: handle idmapped mounts
2021-01-24 14:27:17 +01:00
xattr_security.c
acl: handle idmapped mounts
2021-01-24 14:27:17 +01:00
xattr_trusted.c
acl: handle idmapped mounts
2021-01-24 14:27:17 +01:00
xattr_user.c
acl: handle idmapped mounts
2021-01-24 14:27:17 +01:00
xattr.c
ext4: Support for checksumming from journal triggers
2021-08-30 23:36:50 -04:00
xattr.h
ext4: remove duplicate definition of ext4_xattr_ibody_inline_set()
2021-06-24 10:09:39 -04:00