[PATCH] knfsd: lockd: Change list of blocked list to list_node

This patch changes the nlm_blocked list to use a list_node instead of
homegrown linked list handling.

Signed-off-by: Olaf Kirch <okir@suse.de>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index c8308bccd319..a92fc5813144 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -107,6 +107,7 @@ nlm_lookup_file(struct svc_rqst *rqstp, struct nlm_file **result,
         memcpy(&file->f_handle, f, sizeof(struct nfs_fh));
         file->f_hash = hash;
         init_MUTEX(&file->f_sema);
+        INIT_LIST_HEAD(&file->f_blocks);
 
         /* Open the file. Note that this must not sleep for too long, else
          * we would lock up lockd:-) So no NFS re-exports, folks.
@@ -220,7 +221,7 @@ nlm_inspect_file(struct nlm_host *host, struct nlm_file *file, int action)
 {
         if (action == NLM_ACT_CHECK) {
                 /* Fast path for mark and sweep garbage collection */
-                if (file->f_count || file->f_blocks || file->f_shares)
+                if (file->f_count || list_empty(&file->f_blocks) || file->f_shares)
                         return 1;
         } else {
                 nlmsvc_traverse_blocks(host, file, action);
@@ -253,7 +254,7 @@ nlm_traverse_files(struct nlm_host *host, int action)
                         mutex_lock(&nlm_file_mutex);
                         file->f_count--;
                         /* No more references to this file. Let go of it. */
-                        if (!file->f_blocks && !file->f_locks
+                        if (list_empty(&file->f_blocks) && !file->f_locks
                          && !file->f_shares && !file->f_count) {
                                 *fp = file->f_next;
                                 nlmsvc_ops->fclose(file->f_file);