btrfs: Switch btrfs_trim_free_extents to find_first_clear_extent_bit

Browse source

Instead of always calling the allocator to search for a free extent,
that satisfies the input criteria, switch btrfs_trim_free_extents to
using find_first_clear_extent_bit. With this change it's no longer
necessary to read the device tree in order to figure out holes in
the devices.

Now the code always searches in-memory data structure to figure out the
space range which contains the requested which should result in speed
improvements.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

...

This commit is contained in:

Nikolay Borisov 2019-03-27 14:24:18 +02:00 • committed by David Sterba

parent 45bfcfc168

commit 929be17a9b

1 changed files with 28 additions and 63 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

91

fs/btrfs/extent-tree.c

View file