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| author | Josef Bacik <josef@toxicpanda.com> | 2022-03-29 10:56:06 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-05-16 17:03:11 +0200 |
| commit | bb5a098d9791f184899499531ff4411089e2a5e0 (patch) | |
| tree | 2fd6a2374e9fcd2f10ff674a6698f0580d6a6a64 /fs/btrfs/space-info.h | |
| parent | btrfs: do not test for free space inode during NOCOW check against file extent (diff) | |
| download | linux-bb5a098d9791f184899499531ff4411089e2a5e0.tar.xz linux-bb5a098d9791f184899499531ff4411089e2a5e0.zip | |
btrfs: make the bg_reclaim_threshold per-space info
For non-zoned file systems it's useful to have the auto reclaim feature,
however there are different use cases for non-zoned, for example we may
not want to reclaim metadata chunks ever, only data chunks. Move this
sysfs flag to per-space_info. This won't affect current users because
this tunable only ever did anything for zoned, and that is currently
hidden behind BTRFS_CONFIG_DEBUG.
Tested-by: Pankaj Raghav <p.raghav@samsung.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
[ jth restore global bg_reclaim_threshold ]
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/space-info.h')
| -rw-r--r-- | fs/btrfs/space-info.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/space-info.h b/fs/btrfs/space-info.h index d841fed73492..a803e29bd781 100644 --- a/fs/btrfs/space-info.h +++ b/fs/btrfs/space-info.h @@ -24,6 +24,12 @@ struct btrfs_space_info { the space info if we had an ENOSPC in the allocator. */ + /* + * Once a block group drops below this threshold (percents) we'll + * schedule it for reclaim. + */ + int bg_reclaim_threshold; + int clamp; /* Used to scale our threshold for preemptive flushing. The value is >> clamp, so turns out to be a 2^clamp divisor. */ |