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authorOlaf Kirch <okir@suse.de>2006-10-04 02:15:59 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-04 07:55:17 -0700
commitf2af793db02d2c2f677bdb5bf8e0efdcbf9c0256 (patch)
tree2daa40a1a128905ff514df995903d8ef8d692b04 /fs/lockd/svclock.c
parent07ba80635117c136714084e019375aa508365375 (diff)
downloadop-kernel-dev-f2af793db02d2c2f677bdb5bf8e0efdcbf9c0256.zip
op-kernel-dev-f2af793db02d2c2f677bdb5bf8e0efdcbf9c0256.tar.gz
[PATCH] knfsd: lockd: make nlm_traverse_* more flexible
This patch makes nlm_traverse{locks,blocks,shares} and friends use a function pointer rather than a "action" enum. This function pointer is given two nlm_hosts (one given by the caller, the other taken from the lock/block/share currently visited), and is free to do with them as it wants. If it returns a non-zero value, the lockd/block/share is released. 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>
Diffstat (limited to 'fs/lockd/svclock.c')
-rw-r--r--fs/lockd/svclock.c33
1 files changed, 8 insertions, 25 deletions
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 7209712..1f91567 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -265,24 +265,20 @@ static void nlmsvc_release_block(struct nlm_block *block)
kref_put(&block->b_count, nlmsvc_free_block);
}
-static void nlmsvc_act_mark(struct nlm_host *host, struct nlm_file *file)
-{
- struct nlm_block *block;
-
- down(&file->f_sema);
- list_for_each_entry(block, &file->f_blocks, b_flist)
- block->b_host->h_inuse = 1;
- up(&file->f_sema);
-}
-
-static void nlmsvc_act_unlock(struct nlm_host *host, struct nlm_file *file)
+/*
+ * Loop over all blocks and delete blocks held by
+ * a matching host.
+ */
+void nlmsvc_traverse_blocks(struct nlm_host *host,
+ struct nlm_file *file,
+ nlm_host_match_fn_t match)
{
struct nlm_block *block, *next;
restart:
down(&file->f_sema);
list_for_each_entry_safe(block, next, &file->f_blocks, b_flist) {
- if (host != NULL && host != block->b_host)
+ if (!match(block->b_host, host))
continue;
/* Do not destroy blocks that are not on
* the global retry list - why? */
@@ -298,19 +294,6 @@ restart:
}
/*
- * Loop over all blocks and perform the action specified.
- * (NLM_ACT_CHECK handled by nlmsvc_inspect_file).
- */
-void
-nlmsvc_traverse_blocks(struct nlm_host *host, struct nlm_file *file, int action)
-{
- if (action == NLM_ACT_MARK)
- nlmsvc_act_mark(host, file);
- else
- nlmsvc_act_unlock(host, file);
-}
-
-/*
* Initialize arguments for GRANTED call. The nlm_rqst structure
* has been cleared already.
*/
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