From 288b2fd8251cb0bcb14b8a93755ef9c78de70e0f Mon Sep 17 00:00:00 2001 From: "David M. Richter" Date: Wed, 23 Apr 2008 16:29:00 -0400 Subject: leases: when unlocking, skip locking-related steps In generic_setlease(), we don't need to allocate a new struct file_lock or check for readers or writers when called with F_UNLCK. Signed-off-by: David M. Richter Signed-off-by: J. Bruce Fields --- fs/locks.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index b9f3a0bed30..da1d0ddb4ab 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -1367,18 +1367,20 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp) lease = *flp; - error = -EAGAIN; - if ((arg == F_RDLCK) && (atomic_read(&inode->i_writecount) > 0)) - goto out; - if ((arg == F_WRLCK) - && ((atomic_read(&dentry->d_count) > 1) - || (atomic_read(&inode->i_count) > 1))) - goto out; + if (arg != F_UNLCK) { + error = -EAGAIN; + if ((arg == F_RDLCK) && (atomic_read(&inode->i_writecount) > 0)) + goto out; + if ((arg == F_WRLCK) + && ((atomic_read(&dentry->d_count) > 1) + || (atomic_read(&inode->i_count) > 1))) + goto out; - error = -ENOMEM; - new_fl = locks_alloc_lock(); - if (new_fl == NULL) - goto out; + error = -ENOMEM; + new_fl = locks_alloc_lock(); + if (new_fl == NULL) + goto out; + } /* * At this point, we know that if there is an exclusive -- cgit v1.2.3-18-g5258