Jan Kara 5375023ae1 xfs: Fix missed holes in SEEK_HOLE implementation ...

XFS SEEK_HOLE implementation could miss a hole in an unwritten extent as
can be seen by the following command:

xfs_io -c "falloc 0 256k" -c "pwrite 0 56k" -c "pwrite 128k 8k"
       -c "seek -h 0" file
wrote 57344/57344 bytes at offset 0
56 KiB, 14 ops; 0.0000 sec (49.312 MiB/sec and 12623.9856 ops/sec)
wrote 8192/8192 bytes at offset 131072
8 KiB, 2 ops; 0.0000 sec (70.383 MiB/sec and 18018.0180 ops/sec)
Whence	Result
HOLE	139264

Where we can see that hole at offset 56k was just ignored by SEEK_HOLE
implementation. The bug is in xfs_find_get_desired_pgoff() which does
not properly detect the case when pages are not contiguous.

Fix the problem by properly detecting when found page has larger offset
than expected.

CC: stable@vger.kernel.org
Fixes: d126d43f631f996daeee5006714fed914be32368
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-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>

2017-05-25 09:42:25 -07:00

..

9p

9p: Convert to separately allocated bdi

2017-04-20 12:09:55 -06:00

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

fs/affs: add rename exchange

2017-05-05 15:24:52 -04:00

afs

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2017-05-02 16:40:27 -07:00

autofs4

Fix dead URLs to ftp.kernel.org

2017-03-28 16:16:52 +02:00

befs

befs: make export work with cold dcache

2017-05-05 11:35:35 +01:00

bfs

Tigran has moved

2017-05-12 15:57:15 -07:00

btrfs

Merge branch 'for-linus-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2017-05-10 08:33:17 -07:00

cachefiles

sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>

2017-03-02 08:42:31 +01:00

ceph

The two main items are support for disabling automatic rbd exclusive

2017-05-10 08:42:33 -07:00

cifs

fs: cifs: replace CURRENT_TIME by other appropriate apis

2017-05-08 17:15:15 -07:00

coda

coda: Convert to separately allocated bdi

2017-04-20 12:09:55 -06:00

configfs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

cramfs

…

crypto

fscrypt: introduce helper function for filename matching

2017-05-04 11:44:37 -04:00

debugfs

fs: constify tree_descr arrays passed to simple_fill_super()

2017-04-26 23:54:06 -04:00

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

net: Work around lockdep limitation in sockets that use sockets

2017-03-09 18:23:27 -08:00

ecryptfs

ecryptfs: Convert to separately allocated bdi

2017-04-20 12:09:55 -06:00

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

fs: semove set but not checked AOP_FLAG_UNINTERRUPTIBLE flag

2017-05-08 17:15:14 -07:00

exportfs

Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-03-03 11:38:56 -08:00

ext2

Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2017-05-12 15:43:10 -07:00

ext4

Merge branch 'akpm' (patches from Andrew)

2017-05-13 09:49:35 -07:00

f2fs

Merge branch 'akpm' (patches from Andrew)

2017-05-08 18:17:56 -07:00

fat

fat: fix using uninitialized fields of fat_inode/fsinfo_inode

2017-03-09 17:01:10 -08:00

freevxfs

freevxfs: update Kconfig information

2016-06-13 10:20:39 +02:00

fscache

KEYS: Differentiate uses of rcu_dereference_key() and user_key_payload()

2017-03-02 10:09:00 +11:00

fuse

NFS client updates for Linux 4.12

2017-05-10 13:03:38 -07:00

gfs2

gfs2: replace CURRENT_TIME with current_time

2017-05-08 17:15:15 -07:00

hfs

fs: semove set but not checked AOP_FLAG_UNINTERRUPTIBLE flag

2017-05-08 17:15:14 -07:00

hfsplus

fs: semove set but not checked AOP_FLAG_UNINTERRUPTIBLE flag

2017-05-08 17:15:14 -07:00

hostfs

vfs: remove ".readlink = generic_readlink" assignments

2016-12-09 16:45:04 +01:00

hpfs

sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>

2017-03-02 08:42:32 +01:00

hugetlbfs

hugetlbfs: fix offset overflow in hugetlbfs mmap

2017-04-13 18:24:21 -07:00

isofs

sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>

2017-03-02 08:42:31 +01:00

jbd2

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-05-10 10:30:46 -07:00

jffs2

jffs2: fix spelling mistake: "requestied" -> "requested"

2017-04-19 11:35:55 -07:00

jfs

jfs: Remove jfs_get_inode_flags()

2017-04-19 14:21:23 +02:00

kernfs

kernfs: Check KERNFS_HAS_RELEASE before calling kernfs_release_file()

2017-03-17 10:25:59 +09:00

lockd

Another RDMA update from Chuck Lever, and a bunch of miscellaneous

2017-05-10 13:29:23 -07:00

minix

statx: Add a system call to make enhanced file info available

2017-03-02 20:51:15 -05:00

ncpfs

ncpfs: Convert to separately allocated bdi

2017-04-20 12:09:55 -06:00

nfs

Another RDMA update from Chuck Lever, and a bunch of miscellaneous

2017-05-10 13:29:23 -07:00

nfs_common

netns: make struct pernet_operations::id unsigned int

2016-11-18 10:59:15 -05:00

nfsd

Another RDMA update from Chuck Lever, and a bunch of miscellaneous

2017-05-10 13:29:23 -07:00

nilfs2

fs: Remove SB_I_DYNBDI flag

2017-04-20 12:09:55 -06:00

nls

…

notify

fanotify: don't expose EOPENSTALE to userspace

2017-04-25 15:48:06 +02:00

ntfs

sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>

2017-03-02 08:42:32 +01:00

ocfs2

fs/ocfs2/cluster: use offset_in_page() macro

2017-05-03 15:52:07 -07:00

omfs

sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>

2017-03-02 08:42:31 +01:00

openpromfs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

orangefs

Some cleanups:

2017-05-05 13:36:10 -07:00

overlayfs

Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs

2017-05-10 09:03:48 -07:00

proc

proc: try to remove use of FOLL_FORCE entirely

2017-05-09 08:45:16 -07:00

pstore

Annotation of module parameters that specify device settings

2017-05-10 19:13:03 -07:00

qnx4

…

qnx6

…

quota

quota: Remove dquot_quotactl_ops

2017-04-19 14:21:23 +02:00

ramfs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

reiserfs

reiserfs: use designated initializers

2017-05-08 17:15:11 -07:00

romfs

romfs: use different way to generate fsid for BLOCK or MTD

2017-01-24 16:26:14 -08:00

squashfs

fs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version

2017-02-24 17:46:57 -08:00

sysfs

sysfs: be careful of error returns from ops->show()

2017-04-08 17:33:32 +02:00

sysv

statx: Add a system call to make enhanced file info available

2017-03-02 20:51:15 -05:00

tracefs

fs: constify tree_descr arrays passed to simple_fill_super()

2017-04-26 23:54:06 -04:00

ubifs

This pull request contains updates for both UBI and UBIFS:

2017-05-13 10:23:12 -07:00

udf

udf: use kmap_atomic for memcpy copying

2017-04-24 16:28:02 +02:00

ufs

fs: ufs: use ktime_get_real_ts64() for birthtime

2017-05-08 17:15:15 -07:00

xfs

xfs: Fix missed holes in SEEK_HOLE implementation

2017-05-25 09:42:25 -07:00

aio.c

Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-03-03 10:16:38 -08:00

anon_inodes.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

attr.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>

2017-03-02 08:42:29 +01:00

bad_inode.c

statx: Add a system call to make enhanced file info available

2017-03-02 20:51:15 -05:00

binfmt_aout.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>

2017-03-02 08:42:36 +01:00

binfmt_elf_fdpic.c

sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>

2017-03-02 08:42:39 +01:00

binfmt_elf.c

sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>

2017-03-02 08:42:39 +01:00

binfmt_em86.c

fs/binfmt_em86.c: fix incompatible pointer type

2016-08-02 19:35:15 -04:00

binfmt_flat.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>

2017-03-02 08:42:36 +01:00

binfmt_misc.c

fs: constify tree_descr arrays passed to simple_fill_super()

2017-04-26 23:54:06 -04:00

binfmt_script.c

…

block_dev.c

Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2017-05-12 15:43:10 -07:00

buffer.c

Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-05-09 09:12:53 -07:00

char_dev.c

chardev: add helper function to register char devs with a struct device

2017-03-21 06:44:32 +01:00

compat_binfmt_elf.c

fs/binfmt: Convert obsolete cputime type to nsecs

2017-02-01 09:13:51 +01:00

compat_ioctl.c

fs: compat: Remove warning from COMPATIBLE_IOCTL

2017-04-29 17:47:19 -04:00

compat.c

fs/compat.c: trim unused includes

2017-04-17 12:52:27 -04:00

coredump.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>

2017-03-02 08:42:36 +01:00

dax.c

Merge branch 'akpm' (patches from Andrew)

2017-05-13 09:49:35 -07:00

dcache.c

fs: don't set *REFERENCED on single use objects

2017-05-03 11:47:05 -04:00

dcookies.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

direct-io.c

fs: add i_blocksize()

2017-02-27 18:43:46 -08:00

drop_caches.c

…

eventfd.c

sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>

2017-03-02 08:42:32 +01:00

eventpoll.c

epoll: Add busy poll support to epoll with socket fds.

2017-03-24 20:49:31 -07:00

exec.c

x86/arch_prctl: Add ARCH_[GET|SET]_CPUID

2017-03-20 16:10:34 +01:00

fcntl.c

Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-05-09 09:12:53 -07:00

fhandle.c

fhandle: move compat syscalls from compat.c

2017-04-17 12:52:26 -04:00

file_table.c

sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>

2017-03-02 08:42:31 +01:00

file.c

mm, vmalloc: use __GFP_HIGHMEM implicitly

2017-05-08 17:15:13 -07:00

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

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>

2017-03-02 08:42:35 +01:00

fs-writeback.c

writeback: fix memory leak in wb_queue_work()

2017-03-13 08:27:34 -06:00

inode.c

Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-05-09 09:12:53 -07:00

internal.h

Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-05-09 09:12:53 -07:00

ioctl.c

sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency

2017-03-02 08:42:37 +01:00

iomap.c

fs: semove set but not checked AOP_FLAG_UNINTERRUPTIBLE flag

2017-05-08 17:15:14 -07:00

Kconfig

block, dax: move "select DAX" from BLOCK to FS_DAX

2017-05-08 10:55:27 -07:00

Kconfig.binfmt

docs: fix locations of several documents that got moved

2016-10-24 08:12:35 -02:00

libfs.c

fs: constify tree_descr arrays passed to simple_fill_super()

2017-04-26 23:54:06 -04:00

locks.c

locks: Set FL_CLOSE when removing flock locks on close()

2017-04-21 10:45:01 -04:00

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

fsnotify: Free fsnotify_mark_connector when there is no mark attached

2017-04-10 17:37:35 +02:00

mpage.c

fs: add i_blocksize()

2017-02-27 18:43:46 -08:00

namei.c

Merge branch 'work.sane_pwd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-05-12 11:39:59 -07:00

namespace.c

Merge branch 'work.sane_pwd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-05-12 11:39:59 -07:00

no-block.c

…

nsfs.c

ns: allow ns_entries to have custom symlink content

2017-05-08 17:15:12 -07:00

open.c

Merge branch 'work.sane_pwd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-05-12 11:39:59 -07:00

pipe.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

pnode.c

mnt: Tuck mounts under others instead of creating shadow/side mounts.

2017-02-04 00:01:06 +13:00

pnode.h

mnt: Tuck mounts under others instead of creating shadow/side mounts.

2017-02-04 00:01:06 +13:00

posix_acl.c

sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>

2017-03-02 08:42:31 +01:00

proc_namespace.c

sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>

2017-03-02 08:42:38 +01:00

read_write.c

move compat_rw_copy_check_uvector() over to fs/read_write.c

2017-04-17 12:52:26 -04:00

readdir.c

readdir: move compat syscalls from compat.c

2017-04-17 12:52:24 -04:00

select.c

treewide: use kv[mz]alloc* rather than opencoded variants

2017-05-08 17:15:13 -07:00

seq_file.c

mm: introduce kv[mz]alloc helpers

2017-05-08 17:15:12 -07:00

signalfd.c

mm: Rename SLAB_DESTROY_BY_RCU to SLAB_TYPESAFE_BY_RCU

2017-04-18 11:42:36 -07:00

splice.c

Merge branch 'work.splice' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-05-02 11:38:06 -07:00

stack.c

…

stat.c

Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-05-02 11:54:26 -07:00

statfs.c

statfs: move compat syscalls from compat.c

2017-04-17 12:52:23 -04:00

super.c

bdi: Drop 'parent' argument from bdi_register[_va]()

2017-04-20 12:09:55 -06:00

sync.c

vfs: use helper for calling f_op->fsync()

2017-02-20 16:51:23 +01:00

timerfd.c

timerfd: Only check CAP_WAKE_ALARM when it is needed

2017-03-01 12:53:44 +01:00

userfaultfd.c

userfaultfd: report actual registered features in fdinfo

2017-04-08 00:47:48 -07:00

utimes.c

utimes: move compat syscalls from compat.c

2017-04-17 12:52:23 -04:00

xattr.c

treewide: use kv[mz]alloc* rather than opencoded variants

2017-05-08 17:15:13 -07:00