tree 00c1e2c71caf2338cfe27f2854cf331515b4f411
parent aab407fc5c0ce63e9fd4a34a790d7290d3e116a1
author Al Viro <viro@zeniv.linux.org.uk> 1380468289 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1382672099 -0400

new helpers: lock_mount_hash/unlock_mount_hash

aka br_write_{lock,unlock} of vfsmount_lock.  Inlines in fs/mount.h,
vfsmount_lock extern moved over there as well.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>