Commits
Dan Fuhry committed cdd1fedf826
btrfs: add support for RENAME_EXCHANGE and RENAME_WHITEOUT Two new flags, RENAME_EXCHANGE and RENAME_WHITEOUT, provide for new behavior in the renameat2() syscall. This behavior is primarily used by overlayfs. This patch adds support for these flags to btrfs, enabling it to be used as a fully functional upper layer for overlayfs. RENAME_EXCHANGE support was written by Davide Italiano originally submitted on 2 April 2015. Signed-off-by: Davide Italiano <dccitaliano@gmail.com> Signed-off-by: Dan Fuhry <dfuhry@datto.com> [ remove unlikely ] Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Filipe Manana <fdmanana@suse.com>