linux_dsm_epyc7002/fs/ext4
Jan Kara 2ee3ee06a8 ext4: fix hole length detection in ext4_ind_map_blocks()
When ext4_ind_map_blocks() computes a length of a hole, it doesn't count
with the fact that mapped offset may be somewhere in the middle of the
completely empty subtree. In such case it will return too large length
of the hole which then results in lseek(SEEK_DATA) to end up returning
an incorrect offset beyond the end of the hole.

Fix the problem by correctly taking offset within a subtree into account
when computing a length of a hole.

Fixes: facab4d971
CC: stable@vger.kernel.org
Reported-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2018-05-12 19:55:00 -04:00
..
acl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
acl.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
balloc.c ext4: mark block bitmap corrupted when found 2018-05-12 12:37:58 -04:00
bitmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
block_validity.c ext4: use 'sbi' instead of 'EXT4_SB(sb)' 2018-01-11 13:17:49 -05:00
dir.c ext4: force revalidation of directory pointer after seekdir(2) 2018-04-01 23:21:03 -04:00
ext4_extents.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
ext4_jbd2.c ext4: shutdown should not prevent get_write_access 2018-02-18 22:07:36 -05:00
ext4_jbd2.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
ext4.h ext4: add new ext4_mark_group_bitmap_corrupted() helper 2018-05-12 11:39:40 -04:00
extents_status.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
extents_status.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
extents.c ext4: prevent right-shifting extents beyond EXT_MAX_BLOCKS 2018-04-12 11:48:09 -04:00
file.c ext4: fix ENOSPC handling in DAX page fault handler 2018-01-07 16:41:01 -05:00
fsmap.c ext4: make function ‘ext4_getfsmap_find_fixed_metadata’ static 2018-05-10 11:50:04 -04:00
fsmap.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
fsync.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hash.c ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
ialloc.c ext4: mark inode bitmap corrupted when found 2018-05-12 12:15:21 -04:00
indirect.c ext4: fix hole length detection in ext4_ind_map_blocks() 2018-05-12 19:55:00 -04:00
inline.c iversion.h related cleanup for v4.16 2018-02-07 14:25:22 -08:00
inode.c ext4: use raw i_version value for ea_inode 2018-05-10 11:55:31 -04:00
ioctl.c ext4: remove EXT4_STATE_DIOREAD_LOCK flag 2018-03-22 11:52:10 -04:00
Kconfig fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at 2018-01-01 12:45:37 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mballoc.c ext4: mark block bitmap corrupted when found 2018-05-12 12:37:58 -04:00
mballoc.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
migrate.c ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
mmp.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
move_extent.c ext4: remove EXT4_STATE_DIOREAD_LOCK flag 2018-03-22 11:52:10 -04:00
namei.c Refactor support for encrypted symlinks to move common code to fscrypt. 2018-02-04 10:43:12 -08:00
page-io.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
readpage.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
resize.c ext4: use 'sbi' instead of 'EXT4_SB(sb)' 2018-01-11 13:17:49 -05:00
super.c ext4: add new ext4_mark_group_bitmap_corrupted() helper 2018-05-12 11:39:40 -04:00
symlink.c ext4: switch to fscrypt_get_symlink() 2018-01-11 22:10:40 -05:00
sysfs.c ext4: simplify kobject usage 2018-03-30 00:41:34 -04:00
truncate.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
xattr_security.c ext4: use XATTR_CREATE in ext4_initxattrs() 2018-05-10 11:52:14 -04:00
xattr_trusted.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr_user.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr.c ext4: add extra checks to ext4_xattr_block_get() 2018-03-30 20:04:11 -04:00
xattr.h ext4: add extra checks to ext4_xattr_block_get() 2018-03-30 20:04:11 -04:00