tree 293f678cfc7e83ee5c901071b0f8fbab11b84c78
parent cd808deced431b66b5fa4e5c193cb7ec0059eaff
author Miklos Szeredi <mszeredi@suse.cz> 1414102477 +0200
committer Miklos Szeredi <mszeredi@suse.cz> 1414102477 +0200

shmem: support RENAME_WHITEOUT

Allocate a dentry, initialize it with a whiteout and hash it in the place
of the old dentry.  Later the old dentry will be moved away and the
whiteout will remain.

i_mutex protects agains concurrent readdir.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Hugh Dickins <hughd@google.com>