diff options
| author | Dennis Zhou <dennis@kernel.org> | 2020-01-02 16:26:39 -0500 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-01-20 16:41:00 +0100 |
| commit | 7fe6d45e4009d9502fef32ac6222862ac17f8674 (patch) | |
| tree | 870db67c211f8be19b54e97ae253f6600c846af5 /fs/btrfs/free-space-cache.h | |
| parent | 19b2a2c71979f849cadc33af3577f739cc95e1f0 (diff) | |
| download | linux-rpi-7fe6d45e4009d9502fef32ac6222862ac17f8674.tar.gz linux-rpi-7fe6d45e4009d9502fef32ac6222862ac17f8674.tar.bz2 linux-rpi-7fe6d45e4009d9502fef32ac6222862ac17f8674.zip | |
btrfs: have multiple discard lists
Non-block group destruction discarding currently only had a single list
with no minimum discard length. This can lead to caravaning more
meaningful discards behind a heavily fragmented block group.
This adds support for multiple lists with minimum discard lengths to
prevent the caravan effect. We promote block groups back up when we
exceed the BTRFS_ASYNC_DISCARD_MAX_FILTER size, currently we support
only 2 lists with filters of 1MB and 32KB respectively.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/free-space-cache.h')
| -rw-r--r-- | fs/btrfs/free-space-cache.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h index 5018190a49a3..2e0a8077aa74 100644 --- a/fs/btrfs/free-space-cache.h +++ b/fs/btrfs/free-space-cache.h @@ -146,7 +146,7 @@ int btrfs_trim_block_group_extents(struct btrfs_block_group *block_group, bool async); int btrfs_trim_block_group_bitmaps(struct btrfs_block_group *block_group, u64 *trimmed, u64 start, u64 end, u64 minlen, - bool async); + u64 maxlen, bool async); /* Support functions for running our sanity tests */ #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS |