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-rw-r--r--fs/btrfs/extent-tree.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index ae8db3ba..3d4b3d680 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4329,8 +4329,13 @@ out:
static inline int need_do_async_reclaim(struct btrfs_space_info *space_info,
struct btrfs_fs_info *fs_info, u64 used)
{
- return (used >= div_factor_fine(space_info->total_bytes, 98) &&
- !btrfs_fs_closing(fs_info) &&
+ u64 thresh = div_factor_fine(space_info->total_bytes, 98);
+
+ /* If we're just plain full then async reclaim just slows us down. */
+ if (space_info->bytes_used >= thresh)
+ return 0;
+
+ return (used >= thresh && !btrfs_fs_closing(fs_info) &&
!test_bit(BTRFS_FS_STATE_REMOUNTING, &fs_info->fs_state));
}
@@ -4385,10 +4390,7 @@ static void btrfs_async_reclaim_metadata_space(struct work_struct *work)
if (!btrfs_need_do_async_reclaim(space_info, fs_info,
flush_state))
return;
- } while (flush_state <= COMMIT_TRANS);
-
- if (btrfs_need_do_async_reclaim(space_info, fs_info, flush_state))
- queue_work(system_unbound_wq, work);
+ } while (flush_state < COMMIT_TRANS);
}
void btrfs_init_async_reclaim_work(struct work_struct *work)
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