diff options
| author | Jeff Layton <jeff.layton@primarydata.com> | 2015-02-16 14:32:03 -0500 |
|---|---|---|
| committer | Jeff Layton <jeff.layton@primarydata.com> | 2015-02-16 14:32:03 -0500 |
| commit | e084c1bd40926938ff8d26af3bde34396dd4d06d (patch) | |
| tree | 5d4dd8e3eaf5c46430670d4858084230128f3bbd /fs/cifs/file.c | |
| parent | 1fa185ebcbcefdc5229c783450c9f0439a69f0c1 (diff) | |
Revert "locks: keep a count of locks on the flctx lists"
This reverts commit 9bd0f45b7037fcfa8b575c7e27d0431d6e6dc3bb.
Linus rightly pointed out that I failed to initialize the counters
when adding them, so they don't work as expected. Just revert this
patch for now.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Diffstat (limited to 'fs/cifs/file.c')
| -rw-r--r-- | fs/cifs/file.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 8fe1f7a21b3e..a94b3e673182 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -1129,7 +1129,7 @@ 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 i; + unsigned int count = 0, i; int rc = 0, xid, type; struct list_head locks_to_send, *el; struct lock_to_push *lck, *tmp; @@ -1140,14 +1140,20 @@ 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 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 + * Allocating count 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 < flctx->flc_posix_cnt; i++) { + for (i = 0; i < count; i++) { lck = kmalloc(sizeof(struct lock_to_push), GFP_KERNEL); if (!lck) { rc = -ENOMEM; |