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8ef123fe02
linux-next/fs/ext4
History
Ritesh Harjani 8ef123fe02 ext4: mballoc: refactor ext4_mb_good_group() 
ext4_mb_good_group() definition was changed some time back
and now it even initializes the buddy cache (via ext4_mb_init_group()),
if in case the EXT4_MB_GRP_NEED_INIT() is true for a group.
Note that ext4_mb_init_group() could sleep and so should not be called
under a spinlock held.
This is fine as of now because ext4_mb_good_group() is called before
loading the buddy bitmap without ext4_lock_group() held
and again called after loading the bitmap, only this time with
ext4_lock_group() held.
But still this whole thing is confusing.

So this patch refactors out ext4_mb_good_group_nolock() which should be
called when without holding ext4_lock_group().
Also in further patches we hold the spinlock (ext4_lock_group()) while
doing any calculations which involves grp->bb_free or grp->bb_fragments.

Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/d9f7d031a5fbe1c943fae6bf1ff5cdf0604ae722.1589955723.git.riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-06-03 23:16:53 -04:00
..
acl.c ext4: handle ext4_mark_inode_dirty errors 2020-06-03 23:16:50 -04:00
acl.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
balloc.c ext4: balloc: use task_pid_nr() helper 2020-06-03 23:16:52 -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: save all error info in save_error_info() and drop ext4_set_errno() 2020-04-01 17:29:06 -04:00
dir.c ext4: use flexible-array member in struct fname 2020-03-14 14:43:13 -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: remove set but not used variable 'es' in ext4_jbd2.c 2020-04-15 23:58:49 -04:00
ext4_jbd2.h ext4: handle ext4_mark_inode_dirty errors 2020-06-03 23:16:50 -04:00
ext4.h ext4: add casefold flag to EXT4_INODE_* flags 2020-06-03 23:16:53 -04:00
extents_status.c ext4: remove unnecessary comparisons to bool 2020-06-03 23:16:49 -04:00
extents_status.h ext4: fix extent_status trace points 2020-01-25 02:03:03 -05:00
extents.c ext4: rework map struct instantiation in ext4_ext_map_blocks() 2020-06-03 23:16:53 -04:00
file.c ext4: handle ext4_mark_inode_dirty errors 2020-06-03 23:16:50 -04:00
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 ext4: fix race between ext4_sync_parent() and rename() 2020-06-03 23:16:51 -04:00
hash.c ext4: fix kernel oops caused by spurious casefold flag 2019-09-03 01:43:17 -04:00
ialloc.c ext4: fix buffer_head refcnt leak when ext4_iget() fails 2020-06-03 23:16:49 -04:00
indirect.c ext4: handle ext4_mark_inode_dirty errors 2020-06-03 23:16:50 -04:00
inline.c ext4: handle ext4_mark_inode_dirty errors 2020-06-03 23:16:50 -04:00
inode-test.c kunit: allow kunit tests to be loaded as a module 2020-01-09 16:42:29 -07:00
inode.c ext4: make ext_debug() implementation to use pr_debug() 2020-06-03 23:16:52 -04:00
ioctl.c 1) Replace ext4's bmap and iopoll implementations to use iomap. 2020-04-05 10:54:03 -07:00
Kconfig ext4: make ext_debug() implementation to use pr_debug() 2020-06-03 23:16:52 -04:00
Makefile kunit: allow kunit tests to be loaded as a module 2020-01-09 16:42:29 -07:00
mballoc.c ext4: mballoc: refactor ext4_mb_good_group() 2020-06-03 23:16:53 -04:00
mballoc.h ext4: mballoc: make mb_debug() implementation to use pr_debug() 2020-06-03 23:16:52 -04:00
migrate.c ext4: handle ext4_mark_inode_dirty errors 2020-06-03 23:16:50 -04:00
mmp.c ext4: save all error info in save_error_info() and drop ext4_set_errno() 2020-04-01 17:29:06 -04:00
move_extent.c ext4: save all error info in save_error_info() and drop ext4_set_errno() 2020-04-01 17:29:06 -04:00
namei.c ext4: handle ext4_mark_inode_dirty errors 2020-06-03 23:16:50 -04:00
page-io.c fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t 2020-03-28 13:21:08 +01:00
readpage.c ext4: remove unneeded check for error allocating bio_post_read_ctx 2020-01-17 16:24:54 -05:00
resize.c ext4: fix potential race between s_flex_groups online resizing and access 2020-02-21 19:31:46 -05:00
super.c ext4: handle ext4_mark_inode_dirty errors 2020-06-03 23:16:50 -04:00
symlink.c ext4: switch to fscrypt_get_symlink() 2018-01-11 22:10:40 -05:00
sysfs.c block: move the part_stat* helpers from genhd.h to a new header 2020-03-25 09:50:09 -06:00
truncate.h ext4: handle layout changes to pinned DAX mappings 2018-07-29 17:00:22 -04:00
verity.c fs-verity: implement readahead of Merkle tree pages 2020-01-14 13:27:32 -08:00
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: handle ext4_mark_inode_dirty errors 2020-06-03 23:16:50 -04:00
xattr.h ext4: use flexible-array member for xattr structs 2020-03-14 14:43:13 -04:00