Miklos Szeredi d377c5eb54 ovl: don't remove non-empty opaque directory ... When removing an opaque directory we can't just call rmdir() to check for emptiness, because the directory will need to be replaced with a whiteout. The replacement is done with RENAME_EXCHANGE, which doesn't check emptiness. Solution is just to check emptiness by reading the directory. In the future we could add a new rename flag to check for emptiness even for RENAME_EXCHANGE to optimize this case. Reported-by: Vincent Batts <vbatts@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Jordi Pujol Palomer <jordipujolp@gmail.com> Fixes: 263b4a0fee ("ovl: dont replace opaque dir") Cc: <stable@vger.kernel.org> # v4.0+		2015-05-14 10:04:44 +02:00
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copy_up.c	ovl: Cleanup redundant blank lines	2014-12-13 00:59:52 +01:00
dir.c	ovl: don't remove non-empty opaque directory	2015-05-14 10:04:44 +02:00
inode.c	ovl: Use macros to present ovl_xattr	2014-12-13 00:59:52 +01:00
Kconfig	ovl: rename filesystem type to "overlay"	2014-11-20 16:39:59 +01:00
Makefile	ovl: rename filesystem type to "overlay"	2014-11-20 16:39:59 +01:00
overlayfs.h	ovl: Use macros to present ovl_xattr	2014-12-13 00:59:52 +01:00
readdir.c	Merge branch 'overlayfs-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into for-next	2015-02-20 04:58:52 -05:00
super.c	ovl: upper fs should not be R/O	2015-03-18 10:29:48 +01:00