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d7ff00f6082c8578a26d75f2ca1aa28b8f05901e
linux/fs/btrfs
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Josef Bacik d7ff00f608 btrfs: do not readahead in build_backref_tree 
Here we are just searching down to the bytenr we're building the backref
tree for, and all of it's paths to the roots.  These bytenrs are not
guaranteed to be anywhere near each other, so readahead just generates
extra latency.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2020-03-23 17:03:50 +01:00
..
tests
btrfs: kill the subvol_srcu
2020-03-23 17:02:00 +01:00
acl.c
btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter
2019-04-29 19:02:44 +02:00
async-thread.c
Btrfs: fix crash during unmount due to race with delayed inode workers
2020-03-23 17:01:51 +01:00
async-thread.h
Btrfs: fix crash during unmount due to race with delayed inode workers
2020-03-23 17:01:51 +01:00
backref.c
btrfs: kill the subvol_srcu
2020-03-23 17:02:00 +01:00
backref.h
btrfs: relocation: Use btrfs_find_all_leafs to locate data extent parent tree leaves
2020-03-23 17:01:57 +01:00
block-group.c
btrfs: add RCU locks around block group initialization
2020-03-23 17:01:53 +01:00
block-group.h
btrfs: Move and unexport btrfs_rmap_block
2020-01-23 17:24:34 +01:00
block-rsv.c
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
block-rsv.h
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
btrfs_inode.h
btrfs: introduce per-inode file extent tree
2020-03-23 17:01:24 +01:00
check-integrity.c
btrfs: remove buffer_heads form super block mirror integrity checking
2020-03-23 17:01:40 +01:00
check-integrity.h
btrfs: remove btrfsic_submit_bh()
2020-03-23 17:01:39 +01:00
compression.c
btrfs: use larger zlib buffer for s390 hardware compression
2020-01-31 10:30:40 -08:00
compression.h
btrfs: compression: remove ops pointer from workspace_manager
2019-11-18 12:46:59 +01:00
ctree.c
btrfs: inline checksum name and driver definitions
2020-03-23 17:01:52 +01:00
ctree.h
btrfs: kill the subvol_srcu
2020-03-23 17:02:00 +01:00
delalloc-space.c
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
delalloc-space.h
btrfs: migrate the delalloc space stuff to it's own home
2019-07-04 17:26:17 +02:00
delayed-inode.c
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
delayed-inode.h
btrfs: delayed-inode: Replace zero-length array with flexible-array member
2020-03-23 17:01:53 +01:00
delayed-ref.c
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
delayed-ref.h
btrfs: migrate the delayed refs rsv code
2019-07-04 17:26:17 +02:00
dev-replace.c
btrfs: sysfs, rename device_link add/remove functions
2020-03-23 17:01:35 +01:00
dev-replace.h
btrfs: add __pure attribute to functions
2019-11-18 12:46:52 +01:00
dir-item.c
btrfs: remove unused parameter fs_info from btrfs_extend_item
2019-04-29 19:02:50 +02:00
discard.c
btrfs: add correction to handle -1 edge case in async discard
2020-01-20 16:41:01 +01:00
discard.h
btrfs: have multiple discard lists
2020-01-20 16:41:00 +01:00
disk-io.c
btrfs: kill the subvol_srcu
2020-03-23 17:02:00 +01:00
disk-io.h
btrfs: move the root freeing stuff into btrfs_put_root
2020-03-23 17:01:59 +01:00
export.c
btrfs: kill the subvol_srcu
2020-03-23 17:02:00 +01:00
export.h
btrfs: export helpers for subvolume name/id resolution
2020-03-23 17:01:42 +01:00
extent_io.c
btrfs: move the root freeing stuff into btrfs_put_root
2020-03-23 17:01:59 +01:00
extent_io.h
btrfs: make the extent buffer leak check per fs info
2020-03-23 17:01:58 +01:00
extent_map.c
Btrfs: fix race between using extent maps and merging them
2020-02-12 17:16:46 +01:00
extent_map.h
btrfs: remove extent_map::bdev
2019-11-18 23:43:44 +01:00
extent-io-tree.h
btrfs: switch to per-transaction pinned extents
2020-03-23 17:01:38 +01:00
extent-tree.c
btrfs: do not use readahead for running delayed refs
2020-03-23 17:03:50 +01:00
file-item.c
btrfs: add helper to get the end offset of a file extent item
2020-03-23 17:01:56 +01:00
file.c
btrfs: kill the subvol_srcu
2020-03-23 17:02:00 +01:00
free-space-cache.c
btrfs: simplify error handling in __btrfs_write_out_cache()
2020-03-23 17:01:43 +01:00
free-space-cache.h
btrfs: have multiple discard lists
2020-01-20 16:41:00 +01:00
free-space-tree.c
btrfs: move the root freeing stuff into btrfs_put_root
2020-03-23 17:01:59 +01:00
free-space-tree.h
btrfs: rename btrfs_block_group_cache
2019-11-18 17:51:51 +01:00
inode-item.c
btrfs: Make btrfs_find_name_in_ext_backref return struct btrfs_inode_extref
2019-09-09 14:59:16 +02:00
inode-map.c
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
inode-map.h
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
inode.c
btrfs: kill the subvol_srcu
2020-03-23 17:02:00 +01:00
ioctl.c
btrfs: Remove async_transid from btrfs_mksubvol/create_subvol/create_snapshot
2020-03-23 17:02:00 +01:00
Kconfig
btrfs: add Kconfig dependency for BLAKE2B
2019-12-09 17:56:06 +01:00
locking.c
btrfs: Implement DREW lock
2020-03-23 17:01:43 +01:00
locking.h
btrfs: Implement DREW lock
2020-03-23 17:01:43 +01:00
lzo.c
btrfs: compression: inline free_workspace
2019-11-18 12:46:59 +01:00
Makefile
Btrfs: move all reflink implementation code into its own file
2020-03-23 17:01:54 +01:00
misc.h
btrfs: add 64bit safe helper for power of two checks
2019-11-18 12:46:50 +01:00
ordered-data.c
btrfs: drop argument tree from btrfs_lock_and_flush_ordered_range
2020-03-23 17:01:34 +01:00
ordered-data.h
btrfs: drop argument tree from btrfs_lock_and_flush_ordered_range
2020-03-23 17:01:34 +01:00
orphan.c
btrfs: replace GPL boilerplate by SPDX -- sources
2018-04-12 16:29:51 +02:00
print-tree.c
btrfs: Remove unneeded semicolon
2020-01-20 16:40:55 +01:00
print-tree.h
btrfs: print-tree: debugging output enhancement
2018-04-20 19:18:16 +02:00
props.c
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
props.h
btrfs: delete unused function btrfs_set_prop_trans
2019-04-29 19:02:54 +02:00
qgroup.c
btrfs: move the root freeing stuff into btrfs_put_root
2020-03-23 17:01:59 +01:00
qgroup.h
btrfs: destroy qgroup extent records on transaction abort
2020-02-19 00:35:54 +01:00
raid56.c
btrfs: use struct_size to calculate size of raid hash table
2020-03-23 17:01:44 +01:00
raid56.h
btrfs: constify map parameter for nr_parity_stripes and nr_data_stripes
2019-07-01 13:34:58 +02:00
rcu-string.h
btrfs: rcu-string: Replace zero-length array with flexible-array member
2020-03-23 17:01:53 +01:00
reada.c
btrfs: rename btrfs_block_group_cache
2019-11-18 17:51:51 +01:00
ref-verify.c
btrfs: fix ref-verify to catch operations on 0 ref extents
2020-03-23 17:01:56 +01:00
ref-verify.h
btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod()
2019-04-29 19:02:49 +02:00
reflink.c
Btrfs: implement full reflink support for inline extents
2020-03-23 17:01:54 +01:00
reflink.h
Btrfs: move all reflink implementation code into its own file
2020-03-23 17:01:54 +01:00
relocation.c
btrfs: do not readahead in build_backref_tree
2020-03-23 17:03:50 +01:00
root-tree.c
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
scrub.c
btrfs: scrub: Replace zero-length array with flexible-array member
2020-03-23 17:01:54 +01:00
send.c
btrfs: kill the subvol_srcu
2020-03-23 17:02:00 +01:00
send.h
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
space-info.c
btrfs: account ticket size at add/delete time
2020-03-23 17:01:55 +01:00
space-info.h
btrfs: account ticket size at add/delete time
2020-03-23 17:01:55 +01:00
struct-funcs.c
btrfs: tie extent buffer and it's token together
2019-09-09 14:59:16 +02:00
super.c
btrfs: adjust message level for unrecognized mount option
2020-03-23 17:01:45 +01:00
sysfs.c
btrfs: sysfs, unify handler name of devinfo/missing
2020-03-23 17:01:36 +01:00
sysfs.h
btrfs: sysfs, rename device_link add/remove functions
2020-03-23 17:01:35 +01:00
transaction.c
btrfs: hold a ref on the root on the dead roots list
2020-03-23 17:01:59 +01:00
transaction.h
btrfs: switch to per-transaction pinned extents
2020-03-23 17:01:38 +01:00
tree-checker.c
btrfs: tree-checker: Verify location key for DIR_ITEM/DIR_INDEX
2020-01-20 16:40:56 +01:00
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: move the root freeing stuff into btrfs_put_root
2020-03-23 17:01:59 +01:00
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
btrfs: replace GPL boilerplate by SPDX -- sources
2018-04-12 16:29:51 +02:00
ulist.h
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
uuid-tree.c
btrfs: bail out of uuid tree scanning if we're closing
2020-03-23 17:01:41 +01:00
volumes.c
btrfs: relocation: add error injection points for cancelling balance
2020-03-23 17:01:54 +01:00
volumes.h
btrfs: introduce chunk allocation policy
2020-03-23 17:01:48 +01:00
xattr.c
Btrfs: fix failure to persist compression property xattr deletion on fsync
2019-06-17 16:37:17 +02:00
xattr.h
btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter
2019-04-29 19:02:44 +02:00
zlib.c
btrfs: use larger zlib buffer for s390 hardware compression
2020-01-31 10:30:40 -08:00
zstd.c
btrfs: compression: inline free_workspace
2019-11-18 12:46:59 +01:00