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| author | Josef Bacik <josef@toxicpanda.com> | 2022-03-29 01:56:06 -0700 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-05-16 17:03:11 +0200 |
| commit | bb5a098d9791f184899499531ff4411089e2a5e0 (patch) | |
| tree | 2fd6a2374e9fcd2f10ff674a6698f0580d6a6a64 /fs/btrfs/space-info.c | |
| parent | a7bb6bd4bd7ff0440f238deb3510a1037a26f7bc (diff) | |
| download | linux-bb5a098d9791f184899499531ff4411089e2a5e0.tar.gz linux-bb5a098d9791f184899499531ff4411089e2a5e0.tar.bz2 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.c')
| -rw-r--r-- | fs/btrfs/space-info.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c index 4de2c82051b1..2dd8754cb990 100644 --- a/fs/btrfs/space-info.c +++ b/fs/btrfs/space-info.c @@ -181,6 +181,12 @@ void btrfs_clear_space_info_full(struct btrfs_fs_info *info) found->full = 0; } +/* + * Block groups with more than this value (percents) of unusable space will be + * scheduled for background reclaim. + */ +#define BTRFS_DEFAULT_ZONED_RECLAIM_THRESH (75) + static int create_space_info(struct btrfs_fs_info *info, u64 flags) { @@ -203,6 +209,9 @@ static int create_space_info(struct btrfs_fs_info *info, u64 flags) INIT_LIST_HEAD(&space_info->priority_tickets); space_info->clamp = 1; + if (btrfs_is_zoned(info)) + space_info->bg_reclaim_threshold = BTRFS_DEFAULT_ZONED_RECLAIM_THRESH; + ret = btrfs_sysfs_add_space_info_type(info, space_info); if (ret) return ret; |