linux/fs/ext2
Jan Kara 86b0624e42 ext2: Avoid DAX zeroing to corrupt data
Currently ext2 zeroes any data blocks allocated for DAX inode however it
still returns them as BH_New. Thus DAX code zeroes them again in
dax_insert_mapping() which can possibly overwrite the data that has been
already stored to those blocks by a racing dax_io(). Avoid marking
pre-zeroed buffers as new.

Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
2016-05-17 00:44:07 -06:00
..
acl.c ext2: acl: remove unneeded include of linux/capability.h 2014-04-01 23:36:43 +02:00
acl.h ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
balloc.c Ext2: remove the static function release_blocks to optimize the kernel 2013-02-07 16:44:56 +01:00
dir.c mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage 2016-04-04 10:41:08 -07:00
ext2.h mbcache2: rename to mbcache 2016-02-22 22:35:22 -05:00
file.c dax: Remove complete_unwritten argument 2016-05-16 18:11:51 -06:00
ialloc.c ext2: Handle error from dquot_initalize() 2015-07-23 20:59:37 +02:00
inode.c ext2: Avoid DAX zeroing to corrupt data 2016-05-17 00:44:07 -06:00
ioctl.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
Kconfig vfs,ext2: remove CONFIG_EXT2_FS_XIP and rename CONFIG_FS_XIP to CONFIG_FS_DAX 2015-02-16 17:56:04 -08:00
Makefile ext2: remove xip.c and xip.h 2015-02-16 17:56:03 -08:00
namei.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
super.c ext2: convert to mbcache2 2016-02-22 11:56:38 -05:00
symlink.c switch ->get_link() to delayed_call, kill ->put_link() 2015-12-30 13:01:03 -05:00
xattr_security.c xattr handlers: Simplify list operation 2015-12-13 19:46:12 -05:00
xattr_trusted.c xattr handlers: Simplify list operation 2015-12-13 19:46:12 -05:00
xattr_user.c xattr handlers: Simplify list operation 2015-12-13 19:46:12 -05:00
xattr.c mbcache: add reusable flag to cache entries 2016-02-22 22:44:04 -05:00
xattr.h mbcache2: rename to mbcache 2016-02-22 22:35:22 -05:00