diff options
Diffstat (limited to 'fs/btrfs/zstd.c')
| -rw-r--r-- | fs/btrfs/zstd.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/btrfs/zstd.c b/fs/btrfs/zstd.c index fc42dd0badd7..0fe31a6f6e68 100644 --- a/fs/btrfs/zstd.c +++ b/fs/btrfs/zstd.c @@ -93,22 +93,26 @@ static inline struct workspace *list_to_workspace(struct list_head *list) void zstd_free_workspace(struct list_head *ws); struct list_head *zstd_alloc_workspace(unsigned int level); -/* - * zstd_reclaim_timer_fn - reclaim timer + +/** + * Timer callback to free unused workspaces. + * * @t: timer * * This scans the lru_list and attempts to reclaim any workspace that hasn't * been used for ZSTD_BTRFS_RECLAIM_JIFFIES. + * + * The context is softirq and does not need the _bh locking primitives. */ static void zstd_reclaim_timer_fn(struct timer_list *timer) { unsigned long reclaim_threshold = jiffies - ZSTD_BTRFS_RECLAIM_JIFFIES; struct list_head *pos, *next; - spin_lock_bh(&wsm.lock); + spin_lock(&wsm.lock); if (list_empty(&wsm.lru_list)) { - spin_unlock_bh(&wsm.lock); + spin_unlock(&wsm.lock); return; } @@ -137,7 +141,7 @@ static void zstd_reclaim_timer_fn(struct timer_list *timer) if (!list_empty(&wsm.lru_list)) mod_timer(&wsm.timer, jiffies + ZSTD_BTRFS_RECLAIM_JIFFIES); - spin_unlock_bh(&wsm.lock); + spin_unlock(&wsm.lock); } /* |