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authorDave Chinner <dchinner@redhat.com>2010-07-19 04:56:17 (GMT)
committerDave Chinner <david@fromorbit.com>2010-07-19 04:56:17 (GMT)
commit7f8275d0d660c146de6ee3017e1e2e594c49e820 (patch)
tree884db927118b44102750b5168ee36ef4b8b5cb4e /fs/nfs/internal.h
parentd0c6f6258478e1dba532bf7c28e2cd6e1047d3a4 (diff)
downloadlinux-fsl-qoriq-7f8275d0d660c146de6ee3017e1e2e594c49e820.tar.xz
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/nfs/internal.h')
-rw-r--r--fs/nfs/internal.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index d8bd619..e70f44b 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -205,7 +205,8 @@ extern struct rpc_procinfo nfs4_procedures[];
void nfs_close_context(struct nfs_open_context *ctx, int is_sync);
/* dir.c */
-extern int nfs_access_cache_shrinker(int nr_to_scan, gfp_t gfp_mask);
+extern int nfs_access_cache_shrinker(struct shrinker *shrink,
+ int nr_to_scan, gfp_t gfp_mask);
/* inode.c */
extern struct workqueue_struct *nfsiod_workqueue;