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linux_dsm_epyc7002/fs/ext4
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Stephen Brennan aa07327083 ext4: use ext4_grp_locked_error in mb_find_extent 
commit cd84bbbac12a173a381a64c6ec8b76a5277b87b5 upstream.

Commit 5d1b1b3f49 ("ext4: fix BUG when calling ext4_error with locked
block group") introduces ext4_grp_locked_error to handle unlocking a
group in error cases. Otherwise, there is a possibility of a sleep while
atomic. However, since 43c73221b3 ("ext4: replace BUG_ON with WARN_ON
in mb_find_extent()"), mb_find_extent() has contained a ext4_error()
call while a group spinlock is held. Replace this with
ext4_grp_locked_error.

Fixes: 43c73221b3 ("ext4: replace BUG_ON with WARN_ON in mb_find_extent()")
Cc: <stable@vger.kernel.org> # 4.14+
Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Link: https://lore.kernel.org/r/20210623232114.34457-1-stephen.s.brennan@oracle.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-14 16:55:41 +02:00
..
acl.c ext4: main fast-commit commit path 2020-10-21 23:22:37 -04:00
acl.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
balloc.c ext4: shrink race window in ext4_should_retry_alloc() 2021-04-07 15:00:03 +02:00
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: rename system_blks to s_system_blks inside ext4_sb_info 2020-10-18 10:36:59 -04:00
dir.c ext4: use generic casefolding support 2020-10-28 13:43:13 -04:00
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
ext4.h ext4: shrink race window in ext4_should_retry_alloc() 2021-04-07 15:00:03 +02:00
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
extents.c ext4: fix kernel infoleak via ext4_extent_header 2021-07-14 16:55:40 +02:00
fast_commit.c ext4: fix fast commit alignment issues 2021-06-10 13:39:26 +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 jbd2: rename j_maxlen to j_total_len and add jbd2_journal_max_txn_bufs 2020-11-06 23:01:02 -05:00
fsmap.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
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: unlock xattr_sem properly in ext4_inline_data_truncate() 2020-11-06 22:52:36 -05:00
inode-test.c kunit: allow kunit tests to be loaded as a module 2020-01-09 16:42:29 -07:00
inode.c ext4: fix overflow in ext4_iomap_alloc() 2021-07-14 16:55:40 +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 ext4_error_err save negative errno into superblock 2021-05-11 14:47:38 +02:00
move_extent.c ext4: use common helpers in all places reading metadata buffers 2020-10-18 10:37:14 -04:00
namei.c ext4: do not iput inode under running transaction in ext4_rename() 2021-04-07 15:00:06 +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: return error code when ext4_fill_flex_info() fails 2021-07-14 16:55:40 +02:00
symlink.c ext4: switch to fscrypt_get_symlink() 2018-01-11 22:10:40 -05:00
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_hurd.c ext4: support xattr gnu.* namespace for the Hurd 2020-06-12 13:23:34 -04:00
xattr_security.c ext4: use XATTR_CREATE in ext4_initxattrs() 2018-05-10 11:52:14 -04:00
xattr_trusted.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr_user.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +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