tree a4744386eac4b916e847eb4eedfada158f6527b4
parent 57b8f112cfe6622ddddb8c2641206bb5fa8a112d
author Al Viro <viro@zeniv.linux.org.uk> 1453495257 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1453503868 -0500

wrappers for ->i_mutex access

parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

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