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linux-stable/fs/ext4
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Jan Kara eeece469de ext4: fix zeroing of page during writeback 
Tail of a page straddling inode size must be zeroed when being written
out due to POSIX requirement that modifications of mmaped page beyond
inode size must not be written to the file. ext4_bio_write_page() did
this only for blocks fully beyond inode size but didn't properly zero
blocks partially beyond inode size. Fix this.

The problem has been uncovered by mmap_11-4 test in openposix test suite
(part of LTP).

Reported-by: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
Fixes: 5a0dc7365c
Fixes: bd2d0210cf
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2014-05-27 12:48:55 -04:00
..
acl.c ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
acl.h ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
balloc.c ext4: make local functions static 2014-05-12 10:50:23 -04:00
bitmap.c ext4: Checksum the block bitmap properly with bigalloc enabled 2012-10-22 00:34:32 -04:00
block_validity.c fs/ext4: use rbtree postorder iteration helper instead of opencoding 2014-01-23 16:37:03 -08:00
dir.c ext4: remove unused local variable "stored" from ext4_readdir(...) 2014-05-27 12:48:55 -04:00
ext4.h ext4: make local functions static 2014-05-12 10:50:23 -04:00
ext4_extents.h ext4: rename uninitialized extents to unwritten 2014-04-20 23:45:47 -04:00
ext4_jbd2.c ext4: make local functions static 2014-05-12 10:50:23 -04:00
ext4_jbd2.h ext4: make local functions static 2014-05-12 10:50:23 -04:00
extents.c ext4: fix ZERO_RANGE test failure in data journalling 2014-05-27 12:48:55 -04:00
extents_status.c ext4: use EXT_MAX_BLOCKS in ext4_es_can_be_merged() 2014-05-12 22:21:43 -04:00
extents_status.h ext4: add ext4_es_store_pblock_status() 2014-02-19 20:15:15 -05:00
file.c ext4: add missing BUFFER_TRACE before ext4_journal_get_write_access 2014-05-12 22:06:43 -04:00
fsync.c ext4: Fix fsync error handling after filesystem abort 2013-06-12 22:38:04 -04:00
hash.c ext4: reduce one "if" comparison in ext4_dirhash() 2013-02-01 22:33:21 -05:00
ialloc.c ext4: use prandom_u32() instead of get_random_bytes() 2013-11-08 00:14:53 -05:00
indirect.c ext4: isolate ext4_extents.h file 2013-08-28 14:47:06 -04:00
inline.c ext4: add missing BUFFER_TRACE before ext4_journal_get_write_access 2014-05-12 22:06:43 -04:00
inode.c ext4: add missing BUFFER_TRACE before ext4_journal_get_write_access 2014-05-12 22:06:43 -04:00
ioctl.c ext4: clean up error handling in swap_inode_boot_loader() 2014-02-17 20:44:36 -05:00
Kconfig ext4: fix Kconfig documentation for CONFIG_EXT4_DEBUG 2013-04-21 20:32:03 -04:00
Makefile ext4: Remove CONFIG_EXT4_FS_XATTR 2012-12-10 16:30:43 -05:00
mballoc.c ext4: add missing BUFFER_TRACE before ext4_journal_get_write_access 2014-05-12 22:06:43 -04:00
mballoc.h ext4: remove unused ac_ex_scanned 2014-02-20 13:32:10 -05:00
migrate.c ext4: remove unnecessary double parentheses 2014-05-12 12:55:07 -04:00
mmp.c ext4: make local functions static 2014-05-12 10:50:23 -04:00
move_extent.c ext4: add missing BUFFER_TRACE before ext4_journal_get_write_access 2014-05-12 22:06:43 -04:00
namei.c ext4: reduce contention on s_orphan_lock 2014-05-26 11:56:53 -04:00
page-io.c ext4: fix zeroing of page during writeback 2014-05-27 12:48:55 -04:00
resize.c ext4: add missing BUFFER_TRACE before ext4_journal_get_write_access 2014-05-12 22:06:43 -04:00
super.c ext4: add missing BUFFER_TRACE before ext4_journal_get_write_access 2014-05-12 22:06:43 -04:00
symlink.c ext4: Remove CONFIG_EXT4_FS_XATTR 2012-12-10 16:30:43 -05:00
truncate.h ext4: move common truncate functions to header file 2011-06-27 19:16:04 -04:00
xattr.c ext4: add missing BUFFER_TRACE before ext4_journal_get_write_access 2014-05-12 22:06:43 -04:00
xattr.h ext4: each filesystem creates and uses its own mb_cache 2014-03-18 19:24:49 -04:00
xattr_security.c Merge branch 'for_linus' into for_linus_merged 2012-01-10 11:54:07 -05:00
xattr_trusted.c ext2/3/4: delete unneeded includes of module.h 2012-01-09 13:52:10 +01:00
xattr_user.c ext2/3/4: delete unneeded includes of module.h 2012-01-09 13:52:10 +01:00