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| author | Jeff Layton <jlayton@primarydata.com> | 2015-01-16 15:05:55 -0500 |
|---|---|---|
| committer | Jeff Layton <jeff.layton@primarydata.com> | 2015-01-16 15:09:25 -0500 |
| commit | c362781cadd37858c3d8f5d18b1e9957d4671298 (patch) | |
| tree | ad072eccf039314a24ad9314e7e249722d44ddb8 | |
| parent | 4a075e39c86490cc0f0c10ac6abe3592d1689463 (diff) | |
| download | linux-stable-c362781cadd37858c3d8f5d18b1e9957d4671298.tar.gz linux-stable-c362781cadd37858c3d8f5d18b1e9957d4671298.tar.bz2 linux-stable-c362781cadd37858c3d8f5d18b1e9957d4671298.zip | |
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>
| -rw-r--r-- | fs/ceph/locks.c | 4 | ||||
| -rw-r--r-- | fs/ceph/mds_client.c | 4 |
2 files changed, 4 insertions, 4 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; } diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index d2171f4a6980..5f62fb7a5d0a 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -2700,20 +2700,16 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap, struct ceph_filelock *flocks; encode_again: - spin_lock(&inode->i_lock); ceph_count_locks(inode, &num_fcntl_locks, &num_flock_locks); - spin_unlock(&inode->i_lock); flocks = kmalloc((num_fcntl_locks+num_flock_locks) * sizeof(struct ceph_filelock), GFP_NOFS); if (!flocks) { err = -ENOMEM; goto out_free; } - spin_lock(&inode->i_lock); err = ceph_encode_locks_to_buffer(inode, flocks, num_fcntl_locks, num_flock_locks); - spin_unlock(&inode->i_lock); if (err) { kfree(flocks); if (err == -ENOSPC) |