Filipe Manana 2e504418e4 btrfs: be better releasing extent maps at try_release_extent_mapping() ... At try_release_extent_mapping(), called during the release folio callback (btrfs_release_folio() callchain), we don't release any extent maps in the range if the GFP flags don't allow blocking. This behaviour is exaggerated because: 1) Both searching for extent maps and removing them are not blocking operations. The only thing that it is the cond_resched() call at the end of the loop that searches for and removes extent maps; 2) We currently only operate on a single page, so for the case where block size matches the page size, we can only have one extent map, and for the case where the block size is smaller than the page size, we can have at most 16 extent maps. So it's very unlikely the cond_resched() call will ever block even in the block size smaller than page size scenario. So instead of not removing any extent maps at all in case the GFP glags don't allow blocking, keep removing extent maps while we don't need to reschedule. This makes it safe for the subpage case and for a future where we can process folios with a size larger than a page. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>		2024-05-07 21:31:07 +02:00
..
tests	btrfs: pass the extent map tree's inode to remove_extent_mapping()	2024-05-07 21:31:06 +02:00
accessors.c	btrfs: remove unused included headers	2024-03-04 16:24:46 +01:00
accessors.h	btrfs: move balance args conversion helpers to volumes.c	2024-03-04 16:24:52 +01:00
acl.c	btrfs: remove unused included headers	2024-03-04 16:24:46 +01:00
acl.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
async-thread.c	btrfs: remove unused included headers	2024-03-04 16:24:46 +01:00
async-thread.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
backref.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
backref.h	btrfs: uninline some static inline helpers from backref.h	2024-03-04 16:24:53 +01:00
bio.c	btrfs: introduce offload_csum_mode to tweak checksum offloading behavior	2024-03-04 16:24:52 +01:00
bio.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
block-group.c	btrfs: zoned: don't skip block groups with 100% zone unusable	2024-03-26 16:42:39 +01:00
block-group.h	btrfs: mark btrfs_put_caching_control() static	2024-03-05 17:13:23 +01:00
block-rsv.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
block-rsv.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
btrfs_inode.h	btrfs: update comment for btrfs_set_inode_full_sync() about locking	2024-05-07 21:31:07 +02:00
compression.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
compression.h	btrfs: compression: migrate compression/decompression paths to folios	2024-05-07 21:31:02 +02:00
ctree.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
ctree.h	btrfs: add forward declarations and headers, part 3	2024-03-04 16:24:49 +01:00
defrag.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
defrag.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
delalloc-space.c	btrfs: remove unused included headers	2024-03-04 16:24:46 +01:00
delalloc-space.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
delayed-inode.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
delayed-inode.h	btrfs: uninline btrfs_init_delayed_root()	2024-03-04 16:24:53 +01:00
delayed-ref.c	btrfs: replace btrfs_delayed_*_ref with btrfs_*_ref	2024-05-07 21:31:05 +02:00
delayed-ref.h	btrfs: replace btrfs_delayed_*_ref with btrfs_*_ref	2024-05-07 21:31:05 +02:00
dev-replace.c	for-6.9-tag	2024-03-12 12:28:34 -07:00
dev-replace.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
dir-item.c	btrfs: abort transaction on generation mismatch when marking eb as dirty	2023-10-12 16:44:07 +02:00
dir-item.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
discard.c	btrfs: unexport btrfs_run_discard_work and make it static	2023-06-19 13:59:25 +02:00
discard.h	btrfs: unexport btrfs_run_discard_work and make it static	2023-06-19 13:59:25 +02:00
disk-io.c	btrfs: add a global per cpu counter to track number of used extent maps	2024-05-07 21:31:06 +02:00
disk-io.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
export.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
export.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
extent_io.c	btrfs: be better releasing extent maps at try_release_extent_mapping()	2024-05-07 21:31:07 +02:00
extent_io.h	btrfs: introduce btrfs_alloc_folio_array()	2024-05-07 21:31:02 +02:00
extent_map.c	btrfs: add tracepoints for extent map shrinker events	2024-05-07 21:31:07 +02:00
extent_map.h	btrfs: add a shrinker for extent maps	2024-05-07 21:31:06 +02:00
extent-io-tree.c	btrfs: rename err to ret in convert_extent_bit()	2024-05-07 21:31:01 +02:00
extent-io-tree.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
extent-tree.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
extent-tree.h	btrfs: add forward declarations and headers, part 3	2024-03-04 16:24:49 +01:00
file-item.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
file-item.h	btrfs: remove search_commit parameter from btrfs_lookup_csums_list()	2024-05-07 21:31:03 +02:00
file.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
file.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
free-space-cache.c	btrfs: remove SLAB_MEM_SPREAD flag use	2024-03-05 17:13:23 +01:00
free-space-cache.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
free-space-tree.c	btrfs: move transaction abort to the error site btrfs_rebuild_free_space_tree()	2024-03-04 16:24:48 +01:00
free-space-tree.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
fs.c	btrfs: sysfs: update fs features directory asynchronously	2023-02-13 17:50:35 +01:00
fs.h	btrfs: add a shrinker for extent maps	2024-05-07 21:31:06 +02:00
inode-item.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
inode-item.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
inode.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
ioctl.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
ioctl.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
Kconfig	btrfs: check-integrity: remove CONFIG_BTRFS_FS_CHECK_INTEGRITY option	2023-10-12 16:44:05 +02:00
locking.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
locking.h	btrfs: locking: rename __btrfs_tree_lock() and __btrfs_tree_read_lock()	2024-05-07 21:31:00 +02:00
lru_cache.c	btrfs: fix typos found by codespell	2023-12-15 23:00:04 +01:00
lru_cache.h	btrfs: open code trivial btrfs_lru_cache_size()	2024-03-04 16:24:53 +01:00
lzo.c	btrfs: compression: migrate compression/decompression paths to folios	2024-05-07 21:31:02 +02:00
Makefile	btrfs: add support for inserting raid stripe extents	2023-10-12 16:44:09 +02:00
messages.c	btrfs: remove colon from messages with state	2024-04-18 01:46:35 +02:00
messages.h	btrfs: constify fs_info parameter in __btrfs_panic()	2023-12-15 20:27:02 +01:00
misc.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
ordered-data.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
ordered-data.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
orphan.c	btrfs: remove unused included headers	2024-03-04 16:24:46 +01:00
orphan.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
print-tree.c	btrfs: new inline ref storing owning subvol of data extents	2023-10-12 16:44:11 +02:00
print-tree.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
props.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
props.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
qgroup.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
qgroup.h	btrfs: qgroup: validate btrfs_qgroup_inherit parameter	2024-03-05 17:13:24 +01:00
raid56.c	btrfs: raid56: extra debugging for raid6 syndrome generation	2024-03-04 16:24:52 +01:00
raid56.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
raid-stripe-tree.c	btrfs: remove unused included headers	2024-03-04 16:24:46 +01:00
raid-stripe-tree.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
rcu-string.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
ref-verify.c	btrfs: rename btrfs_data_ref->ino to ->objectid	2024-05-07 21:31:05 +02:00
ref-verify.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
reflink.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
reflink.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
relocation.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
relocation.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
root-tree.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
root-tree.h	btrfs: qgroup: fix qgroup prealloc rsv leak in subvolume operations	2024-04-02 19:18:23 +02:00
scrub.c	btrfs: scrub: run relocation repair when/only needed	2024-04-18 01:46:47 +02:00
scrub.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
send.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
send.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
space-info.c	btrfs: remove unused included headers	2024-03-04 16:24:46 +01:00
space-info.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
subpage.c	btrfs: subpage: make writer lock utilize bitmap	2024-03-05 17:13:23 +01:00
subpage.h	btrfs: subpage: make reader lock utilize bitmap	2024-03-05 17:13:23 +01:00
super.c	btrfs: add tracepoints for extent map shrinker events	2024-05-07 21:31:07 +02:00
super.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
sysfs.c	btrfs: introduce offload_csum_mode to tweak checksum offloading behavior	2024-03-04 16:24:52 +01:00
sysfs.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
transaction.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
transaction.h	btrfs: remove no longer used btrfs_transaction_in_commit()	2024-03-04 16:24:52 +01:00
tree-checker.c	btrfs: make sure that WRITTEN is set on all metadata blocks	2024-05-02 22:11:13 +02:00
tree-checker.h	btrfs: make sure that WRITTEN is set on all metadata blocks	2024-05-02 22:11:13 +02:00
tree-log.c	btrfs: pass the extent map tree's inode to clear_em_logging()	2024-05-07 21:31:06 +02:00
tree-log.h	btrfs: uninline some static inline helpers from tree-log.h	2024-03-04 16:24:53 +01:00
tree-mod-log.c	btrfs: change root->root_key.objectid to btrfs_root_id()	2024-05-07 21:31:06 +02:00
tree-mod-log.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
ulist.c	btrfs: remove unused included headers	2024-03-04 16:24:46 +01:00
ulist.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
uuid-tree.c	btrfs: unify handling of return values of btrfs_insert_empty_items()	2024-03-04 16:24:48 +01:00
uuid-tree.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
verity.c	btrfs: remove unused included headers	2024-03-04 16:24:46 +01:00
verity.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
volumes.c	btrfs: remove no longer used btrfs_clone_chunk_map()	2024-05-07 21:31:03 +02:00
volumes.h	btrfs: remove no longer used btrfs_clone_chunk_map()	2024-05-07 21:31:03 +02:00
xattr.c	btrfs: rename err to ret in btrfs_initxattrs()	2024-05-07 21:31:00 +02:00
xattr.h	btrfs: add forward declarations and headers, part 1	2024-03-04 16:24:49 +01:00
zlib.c	btrfs: compression: migrate compression/decompression paths to folios	2024-05-07 21:31:02 +02:00
zoned.c	for-6.9-rc1-tag	2024-03-27 13:56:41 -07:00
zoned.h	btrfs: add forward declarations and headers, part 2	2024-03-04 16:24:49 +01:00
zstd.c	btrfs: compression: migrate compression/decompression paths to folios	2024-05-07 21:31:02 +02:00