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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 10:34:18 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 10:34:18 +0400
commit9bc9ccd7db1c9f043f75380b5a5b94912046a60e (patch)
treedd0a1b3396ae9414f668b0110cc39d11268ad3ed /fs/pnode.c
parentf0230294271f511b41797305b685365a9e569a09 (diff)
parentbdd3536618443809d18868563eeafa63b9d29603 (diff)
downloadlinux-9bc9ccd7db1c9f043f75380b5a5b94912046a60e.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro: "All kinds of stuff this time around; some more notable parts: - RCU'd vfsmounts handling - new primitives for coredump handling - files_lock is gone - Bruce's delegations handling series - exportfs fixes plus misc stuff all over the place" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (101 commits) ecryptfs: ->f_op is never NULL locks: break delegations on any attribute modification locks: break delegations on link locks: break delegations on rename locks: helper functions for delegation breaking locks: break delegations on unlink namei: minor vfs_unlink cleanup locks: implement delegations locks: introduce new FL_DELEG lock flag vfs: take i_mutex on renamed file vfs: rename I_MUTEX_QUOTA now that it's not used for quotas vfs: don't use PARENT/CHILD lock classes for non-directories vfs: pull ext4's double-i_mutex-locking into common code exportfs: fix quadratic behavior in filehandle lookup exportfs: better variable name exportfs: move most of reconnect_path to helper function exportfs: eliminate unused "noprogress" counter exportfs: stop retrying once we race with rename/remove exportfs: clear DISCONNECTED on all parents sooner exportfs: more detailed comment for path_reconnect ...
Diffstat (limited to 'fs/pnode.c')
-rw-r--r--fs/pnode.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/fs/pnode.c b/fs/pnode.c
index 9af0df15256e..c7221bb19801 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -264,12 +264,12 @@ int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp,
prev_src_mnt = child;
}
out:
- br_write_lock(&vfsmount_lock);
+ lock_mount_hash();
while (!list_empty(&tmp_list)) {
child = list_first_entry(&tmp_list, struct mount, mnt_hash);
umount_tree(child, 0);
}
- br_write_unlock(&vfsmount_lock);
+ unlock_mount_hash();
return ret;
}
@@ -278,8 +278,7 @@ out:
*/
static inline int do_refcount_check(struct mount *mnt, int count)
{
- int mycount = mnt_get_count(mnt) - mnt->mnt_ghosts;
- return (mycount > count);
+ return mnt_get_count(mnt) > count;
}
/*
@@ -311,7 +310,7 @@ int propagate_mount_busy(struct mount *mnt, int refcnt)
for (m = propagation_next(parent, parent); m;
m = propagation_next(m, parent)) {
- child = __lookup_mnt(&m->mnt, mnt->mnt_mountpoint, 0);
+ child = __lookup_mnt_last(&m->mnt, mnt->mnt_mountpoint);
if (child && list_empty(&child->mnt_mounts) &&
(ret = do_refcount_check(child, 1)))
break;
@@ -333,8 +332,8 @@ static void __propagate_umount(struct mount *mnt)
for (m = propagation_next(parent, parent); m;
m = propagation_next(m, parent)) {
- struct mount *child = __lookup_mnt(&m->mnt,
- mnt->mnt_mountpoint, 0);
+ struct mount *child = __lookup_mnt_last(&m->mnt,
+ mnt->mnt_mountpoint);
/*
* umount the child only if the child has no
* other children