diff options
| author | Dave Chinner <dchinner@redhat.com> | 2010-07-19 14:56:17 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2010-07-19 14:56:17 +1000 |
| commit | 7f8275d0d660c146de6ee3017e1e2e594c49e820 (patch) | |
| tree | 884db927118b44102750b5168ee36ef4b8b5cb4e /fs/xfs/linux-2.6 | |
| parent | d0c6f6258478e1dba532bf7c28e2cd6e1047d3a4 (diff) | |
mm: add context argument to shrinker callback
The current shrinker implementation requires the registered callback
to have global state to work from. This makes it difficult to shrink
caches that are not global (e.g. per-filesystem caches). Pass the shrinker
structure to the callback so that users can embed the shrinker structure
in the context the shrinker needs to operate on and get back to it in the
callback via container_of().
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/linux-2.6')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_buf.c | 5 | ||||
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_sync.c | 1 |
2 files changed, 4 insertions, 2 deletions
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c index 649ade8ef59..2ee3f7a6016 100644 --- a/fs/xfs/linux-2.6/xfs_buf.c +++ b/fs/xfs/linux-2.6/xfs_buf.c @@ -45,7 +45,7 @@ static kmem_zone_t *xfs_buf_zone; STATIC int xfsbufd(void *); -STATIC int xfsbufd_wakeup(int, gfp_t); +STATIC int xfsbufd_wakeup(struct shrinker *, int, gfp_t); STATIC void xfs_buf_delwri_queue(xfs_buf_t *, int); static struct shrinker xfs_buf_shake = { .shrink = xfsbufd_wakeup, @@ -340,7 +340,7 @@ _xfs_buf_lookup_pages( __func__, gfp_mask); XFS_STATS_INC(xb_page_retries); - xfsbufd_wakeup(0, gfp_mask); + xfsbufd_wakeup(NULL, 0, gfp_mask); congestion_wait(BLK_RW_ASYNC, HZ/50); goto retry; } @@ -1762,6 +1762,7 @@ xfs_buf_runall_queues( STATIC int xfsbufd_wakeup( + struct shrinker *shrink, int priority, gfp_t mask) { diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c index ef7f0218bcc..be375827af9 100644 --- a/fs/xfs/linux-2.6/xfs_sync.c +++ b/fs/xfs/linux-2.6/xfs_sync.c @@ -838,6 +838,7 @@ static struct rw_semaphore xfs_mount_list_lock; static int xfs_reclaim_inode_shrink( + struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask) { |