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namei: minor vfs_unlink cleanup 

We'll be using dentry->d_inode in one more place.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
J. Bruce Fields 2012-08-28 07:03:24 -04:00 committed by Al Viro
parent df4e8d2c1d
commit 9accbb977a
1 changed files with 4 additions and 3 deletions
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7
fs/namei.c
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@ -3617,6 +3617,7 @@ SYSCALL_DEFINE1(rmdir, const char __user *, pathname)
int vfs_unlink(struct inode *dir, struct dentry *dentry) int vfs_unlink(struct inode *dir, struct dentry *dentry)
{ {
struct inode *target = dentry->d_inode;
int error = may_delete(dir, dentry, 0); int error = may_delete(dir, dentry, 0);
if (error) if (error)
@ -3625,7 +3626,7 @@ int vfs_unlink(struct inode *dir, struct dentry *dentry)
if (!dir->i_op->unlink) if (!dir->i_op->unlink)
return -EPERM; return -EPERM;
mutex_lock(&dentry->d_inode->i_mutex); mutex_lock(&target->i_mutex);
if (d_mountpoint(dentry)) if (d_mountpoint(dentry))
error = -EBUSY; error = -EBUSY;
else { else {
@ -3636,11 +3637,11 @@ int vfs_unlink(struct inode *dir, struct dentry *dentry)
dont_mount(dentry); dont_mount(dentry);
} }
} }
mutex_unlock(&dentry->d_inode->i_mutex); mutex_unlock(&target->i_mutex);
/* We don't d_delete() NFS sillyrenamed files--they still exist. */ /* We don't d_delete() NFS sillyrenamed files--they still exist. */
if (!error && !(dentry->d_flags & DCACHE_NFSFS_RENAMED)) { if (!error && !(dentry->d_flags & DCACHE_NFSFS_RENAMED)) {
fsnotify_link_count(dentry->d_inode); fsnotify_link_count(target);
d_delete(dentry); d_delete(dentry);
} }