tree cc2c94d81a631b0656782e1f8299da3267871964
parent 83a8761142cb38536e9e88dfc2432d331ea4e257
author Al Viro <viro@zeniv.linux.org.uk> 1368640379 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1372495606 +0400

[readdir] introduce iterate_dir() and dir_context

iterate_dir(): new helper, replacing vfs_readdir().

struct dir_context: contains the readdir callback (and will get more stuff
in it), embedded into whatever data that callback wants to deal with;
eventually, we'll be passing it to ->readdir() replacement instead of
(data,filldir) pair.

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