Nikolay Borisov 97db120451 btrfs: Preallocate chunks in cow_file_range_async ... This commit changes the implementation of cow_file_range_async in order to get rid of the BUG_ON in the middle of the loop. Additionally it reworks the inner loop in the hopes of making it more understandable. The idea is to make async_cow be a top-level structured, shared amongst all chunks being sent for compression. This allows to perform one memory allocation at the beginning and gracefully fail the IO if there isn't enough memory. Now, each chunk is going to be described by an async_chunk struct. It's the responsibility of the final chunk to actually free the memory. Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>		2019-05-02 13:48:18 +02:00
..
tests	btrfs: get fs_info from block group in search_free_space_info	2019-04-29 19:02:46 +02:00
acl.c	btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter	2019-04-29 19:02:44 +02:00
async-thread.c	btrfs: simplify workqueue name when allocating	2019-02-25 14:13:24 +01:00
async-thread.h
backref.c	Btrfs: do not start a transaction during fiemap	2019-04-29 19:02:51 +02:00
backref.h
btrfs_inode.h	Btrfs: improve performance on fsync of files with multiple hardlinks	2019-04-29 19:02:52 +02:00
check-integrity.c	btrfs: Fix typos in comments and strings	2018-12-17 14:51:50 +01:00
check-integrity.h
compression.c	btrfs: Use less confusing condition for uptodate parameter to btrfs_writepage_endio_finish_ordered	2019-04-29 19:02:24 +02:00
compression.h	btrfs: change set_level() to bound the level passed in	2019-02-25 14:13:32 +01:00
ctree.c	btrfs: ctree: Dump the leaf before BUG_ON in btrfs_set_item_key_safe	2019-04-29 19:02:52 +02:00
ctree.h	btrfs: track DIO bytes in flight	2019-04-29 19:25:37 +02:00
dedupe.h
delayed-inode.c	btrfs: get fs_info from eb in btrfs_leaf_free_space	2019-04-29 19:02:30 +02:00
delayed-inode.h	Btrfs: delayed-inode: use rb_first_cached for ins_root and del_root	2018-10-15 17:23:33 +02:00
delayed-ref.c	btrfs: remove unused parameter fs_info from btrfs_add_delayed_extent_op	2019-04-29 19:02:51 +02:00
delayed-ref.h	btrfs: remove unused parameter fs_info from btrfs_add_delayed_extent_op	2019-04-29 19:02:51 +02:00
dev-replace.c	btrfs: get fs_info from device in btrfs_rm_dev_replace_free_srcdev	2019-04-29 19:02:48 +02:00
dev-replace.h	btrfs: get fs_info from trans in btrfs_run_dev_replace	2019-04-29 19:02:43 +02:00
dir-item.c	btrfs: remove unused parameter fs_info from btrfs_extend_item	2019-04-29 19:02:50 +02:00
disk-io.c	btrfs: track DIO bytes in flight	2019-04-29 19:25:37 +02:00
disk-io.h	btrfs: get fs_info from trans in btrfs_create_tree	2019-04-29 19:02:41 +02:00
export.c	btrfs: Remove 'objectid' member from struct btrfs_root	2018-10-15 17:23:25 +02:00
export.h
extent-tree.c	btrfs: reserve delalloc metadata differently	2019-05-02 13:47:12 +02:00
extent_io.c	btrfs: remove unused parameter fs_info from emit_last_fiemap_cache	2019-04-29 19:02:51 +02:00
extent_io.h	btrfs: Remove bio_offset argument from submit_bio_hook	2019-04-29 19:02:47 +02:00
extent_map.c	btrfs: Optimize unallocated chunks discard	2019-04-29 19:02:38 +02:00
extent_map.h	btrfs: Remove impossible condition from mergable_maps	2019-02-25 14:13:21 +01:00
file-item.c	btrfs: Document btrfs_csum_one_bio	2019-04-29 19:02:52 +02:00
file.c	btrfs: extent-tree: Use btrfs_ref to refactor btrfs_free_extent()	2019-04-29 19:02:49 +02:00
free-space-cache.c	btrfs: get fs_info from block group in btrfs_find_space_cluster	2019-04-29 19:02:46 +02:00
free-space-cache.h	btrfs: get fs_info from block group in btrfs_find_space_cluster	2019-04-29 19:02:46 +02:00
free-space-tree.c	btrfs: get fs_info from block group in search_free_space_info	2019-04-29 19:02:46 +02:00
free-space-tree.h	btrfs: get fs_info from block group in search_free_space_info	2019-04-29 19:02:46 +02:00
inode-item.c	btrfs: remove unused parameter fs_info from btrfs_extend_item	2019-04-29 19:02:50 +02:00
inode-map.c	btrfs: prune unused includes	2018-08-06 13:12:43 +02:00
inode-map.h
inode.c	btrfs: Preallocate chunks in cow_file_range_async	2019-05-02 13:48:18 +02:00
ioctl.c	btrfs: drop local copy of inode i_mode	2019-04-29 19:02:53 +02:00
Kconfig
locking.c	btrfs: trace: Introduce trace events for all btrfs tree locking events	2019-04-29 19:02:43 +02:00
locking.h	btrfs: merge btrfs_set_lock_blocking_rw with it's caller	2019-02-25 14:13:28 +01:00
lzo.c	btrfs: change set_level() to bound the level passed in	2019-02-25 14:13:32 +01:00
Makefile
math.h
ordered-data.c	btrfs: track DIO bytes in flight	2019-04-29 19:25:37 +02:00
ordered-data.h	btrfs: Remove redundant inode argument from btrfs_add_ordered_sum	2019-04-29 19:02:40 +02:00
orphan.c
print-tree.c	btrfs: get fs_info from eb in btrfs_leaf_free_space	2019-04-29 19:02:30 +02:00
print-tree.h
props.c	btrfs: merge calls of btrfs_setxattr and btrfs_setxattr_trans in btrfs_set_prop	2019-04-29 19:02:54 +02:00
props.h	btrfs: delete unused function btrfs_set_prop_trans	2019-04-29 19:02:54 +02:00
qgroup.c	btrfs: get fs_info from trans in btrfs_create_tree	2019-04-29 19:02:41 +02:00
qgroup.h	btrfs: qgroup: Move reserved data accounting from btrfs_delayed_ref_head to btrfs_qgroup_extent_record	2019-02-25 14:13:39 +01:00
raid56.c	for-5.1-rc2-tag	2019-03-26 10:32:13 -07:00
raid56.h
rcu-string.h
reada.c	btrfs: dev-replace: open code trivial locking helpers	2018-12-17 14:51:45 +01:00
ref-verify.c	btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod()	2019-04-29 19:02:49 +02:00
ref-verify.h	btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod()	2019-04-29 19:02:49 +02:00
relocation.c	btrfs: extent-tree: Use btrfs_ref to refactor btrfs_free_extent()	2019-04-29 19:02:49 +02:00
root-tree.c	btrfs: Don't panic when we can't find a root key	2019-04-29 19:02:17 +02:00
scrub.c	btrfs: get fs_info from device in btrfs_scrub_cancel_dev	2019-04-29 19:02:47 +02:00
send.c	Btrfs: fix race between send and deduplication that lead to failures and crashes	2019-04-29 19:02:52 +02:00
send.h
struct-funcs.c	btrfs: prune unused includes	2018-08-06 13:12:43 +02:00
super.c	btrfs: drop unused parameter in mount_subvol	2019-04-29 19:02:35 +02:00
sysfs.c	btrfs: Add sysfs support for metadata_uuid feature	2018-12-17 14:51:37 +01:00
sysfs.h	btrfs: drop extra enum initialization where using defaults	2018-12-17 14:51:43 +01:00
transaction.c	Btrfs: remove no longer used member num_dirty_bgs from transaction	2019-04-29 19:02:43 +02:00
transaction.h	Btrfs: remove no longer used member num_dirty_bgs from transaction	2019-04-29 19:02:43 +02:00
tree-checker.c	btrfs: tree-checker: Allow error injection for tree-checker	2019-04-29 19:02:52 +02:00
tree-checker.h	btrfs: get fs_info from eb in btrfs_check_chunk_valid	2019-04-29 19:02:39 +02:00
tree-defrag.c	btrfs: open code now trivial btrfs_set_lock_blocking	2019-02-25 14:13:27 +01:00
tree-log.c	Btrfs: improve performance on fsync of files with multiple hardlinks	2019-04-29 19:02:52 +02:00
tree-log.h	btrfs: get fs_info from trans in btrfs_set_log_full_commit	2019-04-29 19:02:41 +02:00
ulist.c
ulist.h
uuid-tree.c	btrfs: remove unused parameter fs_info from btrfs_extend_item	2019-04-29 19:02:50 +02:00
volumes.c	btrfs: get fs_info from device in btrfs_rm_dev_replace_free_srcdev	2019-04-29 19:02:48 +02:00
volumes.h	btrfs: get fs_info from device in btrfs_rm_dev_replace_free_srcdev	2019-04-29 19:02:48 +02:00
xattr.c	btrfs: start transaction in xattr_handler_set_prop	2019-04-29 19:02:54 +02:00
xattr.h	btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter	2019-04-29 19:02:44 +02:00
zlib.c	btrfs: change set_level() to bound the level passed in	2019-02-25 14:13:32 +01:00
zstd.c	btrfs: zstd: remove indirect calls for local functions	2019-04-29 19:02:18 +02:00