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| author | Jeff Layton <jlayton@primarydata.com> | 2015-01-16 15:05:57 -0500 |
|---|---|---|
| committer | Jeff Layton <jeff.layton@primarydata.com> | 2015-01-16 16:08:50 -0500 |
| commit | 9bd0f45b7037fcfa8b575c7e27d0431d6e6dc3bb (patch) | |
| tree | 205f3c2107cec0323dc25c959fefcc4fd709fa49 /fs/cifs/file.c | |
| parent | 7448cc37b1a6b620d948aaee3bb30960c06d5d5d (diff) | |
| download | linux-stable-9bd0f45b7037fcfa8b575c7e27d0431d6e6dc3bb.tar.gz linux-stable-9bd0f45b7037fcfa8b575c7e27d0431d6e6dc3bb.tar.bz2 linux-stable-9bd0f45b7037fcfa8b575c7e27d0431d6e6dc3bb.zip | |
locks: keep a count of locks on the flctx lists
This makes things a bit more efficient in the cifs and ceph lock
pushing code.
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/cifs/file.c')
| -rw-r--r-- | fs/cifs/file.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c index b65166eb111e..8c2ca6f62bad 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -1125,7 +1125,7 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile) struct cifs_tcon *tcon = tlink_tcon(cfile->tlink); struct file_lock *flock; struct file_lock_context *flctx = inode->i_flctx; - unsigned int count = 0, i; + unsigned int i; int rc = 0, xid, type; struct list_head locks_to_send, *el; struct lock_to_push *lck, *tmp; @@ -1136,20 +1136,14 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile) if (!flctx) goto out; - spin_lock(&flctx->flc_lock); - list_for_each(el, &flctx->flc_posix) { - count++; - } - spin_unlock(&flctx->flc_lock); - INIT_LIST_HEAD(&locks_to_send); /* - * Allocating count locks is enough because no FL_POSIX locks can be - * added to the list while we are holding cinode->lock_sem that + * Allocating flc_posix_cnt locks is enough because no FL_POSIX locks + * can be added to the list while we are holding cinode->lock_sem that * protects locking operations of this inode. */ - for (i = 0; i < count; i++) { + for (i = 0; i < flctx->flc_posix_cnt; i++) { lck = kmalloc(sizeof(struct lock_to_push), GFP_KERNEL); if (!lck) { rc = -ENOMEM; |