tree b756deeb0873f18ad8711db7dba948ca8d698d6f
parent c8d8170feb824875baf68f8aaecb181a6500ce81
author Bryan Wu <bryan.wu@analog.com> 1181012521 +0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1181261473 -0700

RAMFS NOMMU: missed POSIX UID/GID inode attribute checking

This bug was caught by LTP testcase fchmod06 on Blackfin platform.

In the manpage of fchmod, "EPERM: The effective UID does not match the
owner of the file, and the process is not privileged (Linux: it does not
have the CAP_FOWNER capability)."

But the ramfs nommu code missed the inode_change_ok POSIX UID/GID
verification. This patch fixed this.

Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>