Brian Foster 9dbddd7b0c xfs: resurrect debug mode drop buffered writes mechanism ... A debug mode write failure mechanism was introduced to XFS in commit 801cc4e17a ("xfs: debug mode forced buffered write failure") to facilitate targeted testing of delalloc indirect reservation management from userspace. This code was subsequently rendered ineffective by the move to iomap based buffered writes in commit 68a9f5e700 ("xfs: implement iomap based buffered write path"). This likely went unnoticed because the associated userspace code had not made it into xfstests. Resurrect this mechanism to facilitate effective indlen reservation testing from xfstests. The move to iomap based buffered writes relocated the hook this mechanism needs to return write failure from XFS to generic code. The failure trigger must remain in XFS. Given that limitation, convert this from a write failure mechanism to one that simply drops writes without returning failure to userspace. Rename all "fail_writes" references to "drop_writes" to illustrate the point. This is more hacky than preferred, but still triggers the XFS error handling behavior required to drive the indlen tests. This is only available in DEBUG mode and for testing purposes only. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>		2017-02-16 17:19:15 -08:00
..
9p	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
adfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
affs	vfs: remove ".readlink = generic_readlink" assignments	2016-12-09 16:45:04 +01:00
afs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
autofs4	Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2016-12-17 19:16:12 -08:00
befs	befs: add NFS export support	2016-12-22 11:25:24 +00:00
bfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
btrfs	Merge branch 'for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2017-01-27 12:41:46 -08:00
cachefiles	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
ceph	ceph: fix bad endianness handling in parse_reply_info_extra	2017-01-18 17:58:45 +01:00
cifs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
coda	vfs: remove ".readlink = generic_readlink" assignments	2016-12-09 16:45:04 +01:00
configfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
cramfs
crypto	fscrypt: fix renaming and linking special files	2016-12-31 00:47:05 -05:00
debugfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
devpts	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
dlm	ktime: Get rid of ktime_equal()	2016-12-25 17:21:23 +01:00
ecryptfs	vfs: remove ".readlink = generic_readlink" assignments	2016-12-09 16:45:04 +01:00
efivarfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
efs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
exofs	exofs: don't mess with simple_write_{begin,end}	2016-12-10 14:25:19 -05:00
exportfs	exportfs: be careful to only return expected errors.	2016-10-06 09:07:44 -04:00
ext2	iomap: constify struct iomap_ops	2017-01-30 16:32:25 -08:00
ext4	iomap: constify struct iomap_ops	2017-01-30 16:32:25 -08:00
f2fs	block: Rename blk_queue_zone_size and bdev_zone_size	2017-01-12 07:58:32 -07:00
fat	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
freevxfs
fscache
fuse	fuse: fix time_to_jiffies nsec sanity check	2017-01-13 17:20:47 +01:00
gfs2	ktime: Cleanup ktime_set() usage	2016-12-25 17:21:22 +01:00
hfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
hfsplus	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
hostfs	vfs: remove ".readlink = generic_readlink" assignments	2016-12-09 16:45:04 +01:00
hpfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
hugetlbfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
isofs	Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block	2016-12-13 10:19:16 -08:00
jbd2	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
jffs2	vfs: remove ".readlink = generic_readlink" assignments	2016-12-09 16:45:04 +01:00
jfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
kernfs	Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2016-12-17 19:16:12 -08:00
lockd	netns: make struct pernet_operations::id unsigned int	2016-11-18 10:59:15 -05:00
minix	vfs: remove ".readlink = generic_readlink" assignments	2016-12-09 16:45:04 +01:00
ncpfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
nfs	pNFS: Fix a reference leak in _pnfs_return_layout	2017-01-26 15:50:41 -05:00
nfs_common	netns: make struct pernet_operations::id unsigned int	2016-11-18 10:59:15 -05:00
nfsd	nfsd: fix supported attributes for acl & labels	2017-01-12 15:55:51 -05:00
nilfs2	Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2016-12-17 19:16:12 -08:00
nls
notify	Merge branch 'stable-4.10' of git://git.infradead.org/users/pcmoore/audit	2017-01-05 23:06:06 -08:00
ntfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
ocfs2	ocfs2: fix crash caused by stale lvb with fsdlm plugin	2017-01-10 18:31:54 -08:00
omfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
openpromfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
orangefs	Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2016-12-17 19:16:12 -08:00
overlayfs	ovl: fix possible use after free on redirect dir lookup	2017-01-18 15:19:54 +01:00
proc	proc: add a schedule point in proc_pid_readdir()	2017-01-24 16:26:14 -08:00
pstore	Improvements and fixes to pstore subsystem:	2016-12-13 09:16:11 -08:00
qnx4
qnx6
quota	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2016-12-19 08:23:53 -08:00
ramfs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
reiserfs	Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2016-12-17 19:16:12 -08:00
romfs	romfs: use different way to generate fsid for BLOCK or MTD	2017-01-24 16:26:14 -08:00
squashfs	Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs	2016-12-17 19:16:12 -08:00
sysfs	Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2016-10-14 12:18:50 -07:00
sysv	vfs: remove ".readlink = generic_readlink" assignments	2016-12-09 16:45:04 +01:00
tracefs	fs: Replace CURRENT_TIME with current_time() for inode timestamps	2016-09-27 21:06:21 -04:00
ubifs	ubifs: Fix journal replay wrt. xattr nodes	2017-01-17 14:35:58 +01:00
udf	block,fs: untangle fs.h and blk_types.h	2016-11-01 09:43:26 -06:00
ufs	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
xfs	xfs: resurrect debug mode drop buffered writes mechanism	2017-02-16 17:19:15 -08:00
aio.c	aio: fix lock dep warning	2017-01-14 19:31:40 -05:00
anon_inodes.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
attr.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
bad_inode.c	bad_inode: add missing i_op initializers	2016-12-09 11:57:43 +01:00
binfmt_aout.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
binfmt_elf_fdpic.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
binfmt_elf.c	coredump: Ensure proper size of sparse core files	2017-01-14 19:32:40 -05:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c	fs: Replace current_fs_time() with current_time()	2016-09-27 21:06:22 -04:00
binfmt_script.c
block_dev.c	block: fix use after free in __blkdev_direct_IO	2017-01-24 07:55:53 -07:00
buffer.c	clean_bdev_aliases: Prevent cleaning blocks that are not in block range	2017-01-02 09:35:14 -07:00
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
compat.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
coredump.c	coredump: Ensure proper size of sparse core files	2017-01-14 19:32:40 -05:00
dax.c	iomap: constify struct iomap_ops	2017-01-30 16:32:25 -08:00
dcache.c	mnt: Protect the mountpoint hashtable with mount_lock	2017-01-10 13:34:43 +13:00
dcookies.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
direct-io.c	do_direct_IO: Use inode->i_blkbits to compute block count to be cleaned	2017-01-10 13:29:54 -07:00
drop_caches.c
eventfd.c
eventpoll.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
exec.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
fcntl.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
fhandle.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
file_table.c	constify alloc_file()	2016-12-05 19:01:16 -05:00
file.c	fs/file: more unsigned file descriptors	2016-09-27 18:47:38 -04:00
filesystems.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
fs_pin.c
fs_struct.c
fs-writeback.c	fs/fs-writeback.c: remove redundant if check	2016-12-12 18:55:08 -08:00
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
internal.h	iomap: constify struct iomap_ops	2017-01-30 16:32:25 -08:00
ioctl.c	vfs: call vfs_clone_file_range() under freeze protection	2016-12-16 11:02:54 +01:00
iomap.c	iomap: constify struct iomap_ops	2017-01-30 16:32:25 -08:00
Kconfig	dax: fix build warnings with FS_DAX and !FS_IOMAP	2017-01-24 16:26:14 -08:00
Kconfig.binfmt	docs: fix locations of several documents that got moved	2016-10-24 08:12:35 -02:00
libfs.c	libfs: Modify mount_pseudo_xattr to be clear it is not a userspace mount	2017-01-10 13:34:55 +13:00
locks.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
Makefile	logfs: remove from tree	2016-12-14 23:48:11 -05:00
mbcache.c	mbcache: document that "find" functions only return reusable entries	2016-12-03 15:55:01 -05:00
mount.h	vfs: add path_is_mountpoint() helper	2016-12-03 20:51:35 -05:00
mpage.c	fs: Add helper to clean bdev aliases under a bh and use it	2016-11-04 14:34:47 -06:00
namei.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
namespace.c	mnt: Protect the mountpoint hashtable with mount_lock	2017-01-10 13:34:43 +13:00
no-block.c
nsfs.c	net: add an ioctl to get a socket network namespace	2016-10-31 10:56:36 -04:00
open.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
pipe.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
pnode.c	reorganize do_make_slave()	2016-12-16 16:30:49 -05:00
pnode.h	mnt: Add a per mount namespace limit on the number of mounts	2016-09-30 12:46:48 -05:00
posix_acl.c	tmpfs: clear S_ISGID when setting posix ACLs	2017-01-10 01:29:48 -05:00
proc_namespace.c
read_write.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
readdir.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
select.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
seq_file.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
signalfd.c
splice.c	splice: reinstate SIGPIPE/EPIPE handling	2016-12-21 10:59:34 -08:00
stack.c
stat.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
statfs.c	vfs: misc struct path constification	2016-12-05 19:03:49 -05:00
super.c	quota: Remove dqonoff_mutex	2016-11-30 08:38:07 +01:00
sync.c
timerfd.c	ktime: Cleanup ktime_set() usage	2016-12-25 17:21:22 +01:00
userfaultfd.c	userfaultfd: fix SIGBUS resulting from false rwsem wakeups	2017-01-24 16:26:14 -08:00
utimes.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
xattr.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00