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Code Issues Releases Wiki Activity
linux-stable/fs/ext4
History
Jan Kara 9b88f9fb0d ext4: Do not iput inode under running transaction 
When ext4_mkdir(), ext4_symlink(), ext4_create(), or ext4_mknod() fail
to add entry into directory, it ends up dropping freshly created inode
under the running transaction and thus inode truncation happens under
that transaction. That breaks assumptions that evict() does not get
called from a transaction context and at least in ext4_symlink() case it
can result in inode eviction deadlocking in inode_wait_for_writeback()
when flush worker finds symlink inode, starts to write it back and
blocks on starting a transaction. So change the code in ext4_mkdir() and
ext4_add_nondir() to drop inode reference only after the transaction is
stopped. We also have to add inode to the orphan list in that case as
otherwise the inode would get leaked in case we crash before inode
deletion is committed.

CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20191105164437.32602-5-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2019-11-05 12:13:25 -05:00
..
acl.c ext4: compare old and new mode before setting update_mode flag 2018-12-10 00:22:38 -05:00
acl.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
balloc.c ext4: clean up kerneldoc warnigns when building with W=1 2019-06-19 16:30:03 -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: fix potential use after free after remounting with noblock_validity 2019-08-28 11:13:24 -04:00
dir.c ext4: fix kernel oops caused by spurious casefold flag 2019-09-03 01:43:17 -04:00
ext4.h Added new ext4 debugging ioctls to allow userspace to get information 2019-09-21 13:37:39 -07:00
ext4_extents.h ext4: adjust reserved cluster count when removing extents 2018-10-01 14:25:08 -04:00
ext4_jbd2.c ext4: shutdown should not prevent get_write_access 2018-02-18 22:07:36 -05:00
ext4_jbd2.h ext4: use jbd2_inode dirty range scoping 2019-06-20 17:26:26 -04:00
extents.c ext4: fix warning inside ext4_convert_unwritten_extents_endio 2019-08-22 22:53:46 -04:00
extents_status.c ext4: use percpu_counters for extent_status cache hits/misses 2019-08-28 11:19:23 -04:00
extents_status.h ext4: use percpu_counters for extent_status cache hits/misses 2019-08-28 11:19:23 -04:00
file.c Added new ext4 debugging ioctls to allow userspace to get information 2019-09-21 13:37:39 -07:00
fsmap.c ext4: fix miscellaneous sparse warnings 2019-05-12 04:49:47 -04:00
fsmap.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
fsync.c Revert "ext4: use ext4_write_inode() when fsyncing w/o a journal" 2019-01-31 23:41:11 -05:00
hash.c ext4: fix kernel oops caused by spurious casefold flag 2019-09-03 01:43:17 -04:00
ialloc.c ext4: Support case-insensitive file name lookups 2019-04-25 14:12:08 -04:00
indirect.c ext4: clean up kerneldoc warnigns when building with W=1 2019-06-19 16:30:03 -04:00
inline.c ext4: set error return correctly when ext4_htree_store_dirent fails 2019-08-12 14:29:38 -04:00
inode.c Merge branch 'entropy' 2019-09-29 19:25:39 -07:00
ioctl.c Added new ext4 debugging ioctls to allow userspace to get information 2019-09-21 13:37:39 -07:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile ext4: add basic fs-verity support 2019-08-12 19:33:50 -07:00
mballoc.c ext4: clean up kerneldoc warnigns when building with W=1 2019-06-19 16:30:03 -04:00
mballoc.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
migrate.c ext4: clean up indentation issues, remove extraneous tabs 2018-12-04 00:16:44 -05:00
mmp.c ext4: don't mark mmp buffer head dirty 2018-09-15 17:11:25 -04:00
move_extent.c ext4: use jbd2_inode dirty range scoping 2019-06-20 17:26:26 -04:00
namei.c ext4: Do not iput inode under running transaction 2019-11-05 12:13:25 -05:00
page-io.c for-linus-20190715 2019-07-15 21:20:52 -07:00
readpage.c ext4: add fs-verity read support 2019-08-12 19:33:51 -07:00
resize.c Add as a feature case-insensitive directories (the casefold feature) 2019-05-07 21:12:44 -07:00
super.c Added new ext4 debugging ioctls to allow userspace to get information 2019-09-21 13:37:39 -07:00
symlink.c ext4: switch to fscrypt_get_symlink() 2018-01-11 22:10:40 -05:00
sysfs.c ext4: add basic fs-verity support 2019-08-12 19:33:50 -07:00
truncate.h ext4: handle layout changes to pinned DAX mappings 2018-07-29 17:00:22 -04:00
verity.c ext4: add basic fs-verity support 2019-08-12 19:33:50 -07:00
xattr.c ext4: ignore e_value_offs for xattrs with value-in-ea-inode 2019-04-10 00:37:36 -04:00
xattr.h ext4: add extra checks to ext4_xattr_block_get() 2018-03-30 20:04:11 -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