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authorJeff Layton <jlayton@primarydata.com>2015-01-16 15:05:55 -0500
committerJeff Layton <jeff.layton@primarydata.com>2015-01-16 15:09:25 -0500
commitc362781cadd37858c3d8f5d18b1e9957d4671298 (patch)
treead072eccf039314a24ad9314e7e249722d44ddb8 /fs/ceph/locks.c
parent4a075e39c86490cc0f0c10ac6abe3592d1689463 (diff)
downloadlinux-c362781cadd37858c3d8f5d18b1e9957d4671298.tar.bz2
ceph: move spinlocking into ceph_encode_locks_to_buffer and ceph_count_locks
There is only a single call site for each of these functions, and the caller takes the i_lock prior to calling them and drops it just afterward. Move the spinlocking into the functions instead. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Acked-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/ceph/locks.c')
-rw-r--r--fs/ceph/locks.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c
index c35c5c614e38..366dc2412605 100644
--- a/fs/ceph/locks.c
+++ b/fs/ceph/locks.c
@@ -251,12 +251,14 @@ void ceph_count_locks(struct inode *inode, int *fcntl_count, int *flock_count)
*fcntl_count = 0;
*flock_count = 0;
+ spin_lock(&inode->i_lock);
for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) {
if (lock->fl_flags & FL_POSIX)
++(*fcntl_count);
else if (lock->fl_flags & FL_FLOCK)
++(*flock_count);
}
+ spin_unlock(&inode->i_lock);
dout("counted %d flock locks and %d fcntl locks",
*flock_count, *fcntl_count);
}
@@ -279,6 +281,7 @@ int ceph_encode_locks_to_buffer(struct inode *inode,
dout("encoding %d flock and %d fcntl locks", num_flock_locks,
num_fcntl_locks);
+ spin_lock(&inode->i_lock);
for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) {
if (lock->fl_flags & FL_POSIX) {
++seen_fcntl;
@@ -306,6 +309,7 @@ int ceph_encode_locks_to_buffer(struct inode *inode,
}
}
fail:
+ spin_unlock(&inode->i_lock);
return err;
}