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Brian Foster eedf32bfca xfs: fix rounding error of fiemap length parameter 
The offset and length parameters are converted from bytes to basic
blocks by xfs_vn_fiemap(). The BTOBB() converter rounds the value up to
the nearest basic block. This leads to unexpected behavior when
unaligned offsets are provided to FIEMAP.

Fix the conversions of byte values to block values to cover the provided
offsets. Round down the start offset to the nearest basic block.
Calculate the end offset based on the provided values, round up and
calculate length based on the start block offset.

Reported-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-08-04 11:35:35 +10:00
..
9p
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
adfs
write_iter variants of {__,}generic_file_aio_write()
2014-05-06 17:38:00 -04:00
affs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
afs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
autofs4
fs/autofs4/dev-ioctl.c: add __init to autofs_dev_ioctl_init
2014-06-04 16:54:21 -07:00
befs
fs/befs: kernel-doc fixes
2014-06-06 16:08:09 -07:00
bfs
write_iter variants of {__,}generic_file_aio_write()
2014-05-06 17:38:00 -04:00
btrfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
2014-06-21 14:21:43 -10:00
cachefiles
fs/cachefiles: replace kerror by pr_err
2014-06-06 16:08:14 -07:00
ceph
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2014-06-12 23:06:23 -07:00
cifs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
coda
coda: convert use of typedef ctl_table to struct ctl_table
2014-06-06 16:08:16 -07:00
configfs
fs/configfs: use pr_fmt
2014-06-04 16:53:53 -07:00
cramfs
Major changes for 3.14 include support for the newly added ZERO_RANGE
2014-04-04 15:39:39 -07:00
debugfs
Major changes for 3.14 include support for the newly added ZERO_RANGE
2014-04-04 15:39:39 -07:00
devpts
fs/devpts/inode.c: convert printk to pr_foo()
2014-06-06 16:08:14 -07:00
dlm
dlm: keep listening connection alive with sctp mode
2014-06-12 10:26:14 -05:00
ecryptfs
write_iter variants of {__,}generic_file_aio_write()
2014-05-06 17:38:00 -04:00
efivarfs
fs/efivarfs/super.c: use static const for dentry_operations
2014-06-04 16:54:14 -07:00
efs
fs/efs: convert printk(KERN_DEBUG to pr_debug
2014-06-04 16:54:21 -07:00
exofs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
exportfs
fs/exportfs/expfs.c: kernel-doc warning fixes
2014-06-04 16:54:14 -07:00
ext2
->splice_write() via ->write_iter()
2014-06-12 00:18:51 -04:00
ext3
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
ext4
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
f2fs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
fat
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
freevxfs
Major changes for 3.14 include support for the newly added ZERO_RANGE
2014-04-04 15:39:39 -07:00
fscache
fscache: convert use of typedef ctl_table to struct ctl_table
2014-06-06 16:08:16 -07:00
fuse
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
gfs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
hfs
write_iter variants of {__,}generic_file_aio_write()
2014-05-06 17:38:00 -04:00
hfsplus
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
hostfs
write_iter variants of {__,}generic_file_aio_write()
2014-05-06 17:38:00 -04:00
hpfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
hppfs
…
hugetlbfs
fs/hugetlbfs/inode.c: remove null test before kfree
2014-06-04 16:54:11 -07:00
isofs
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2014-04-07 17:59:17 -07:00
jbd
fs/jbd/revoke.c: replace shift loop by ilog2
2014-05-21 10:26:13 +02:00
jbd2
arch: Mass conversion of smp_mb__*()
2014-04-18 14:20:48 +02:00
jffs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
jfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
kernfs
kernfs: move the last knowledge of sysfs out from kernfs
2014-06-03 08:11:18 -07:00
lockd
Merge branch 'for-3.16' of git://linux-nfs.org/~bfields/linux
2014-06-10 11:50:57 -07:00
logfs
write_iter variants of {__,}generic_file_aio_write()
2014-05-06 17:38:00 -04:00
minix
write_iter variants of {__,}generic_file_aio_write()
2014-05-06 17:38:00 -04:00
ncpfs
fs/ncpfs/getopt.c: replace simple_strtoul by kstrtoul
2014-06-04 16:54:21 -07:00
nfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
nfs_common
…
nfsd
NFSD: fix bug for readdir of pseudofs
2014-06-17 16:42:48 -04:00
nilfs2
write_iter variants of {__,}generic_file_aio_write()
2014-05-06 17:38:00 -04:00
nls
nls: have register_nls() set ->owner
2014-01-25 03:14:05 -05:00
notify
inotify: convert use of typedef ctl_table to struct ctl_table
2014-06-06 16:08:16 -07:00
ntfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
ocfs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
omfs
write_iter variants of {__,}generic_file_aio_write()
2014-05-06 17:38:00 -04:00
openpromfs
fs: push sync_filesystem() down to the file system's remount_fs()
2014-03-13 10:14:33 -04:00
proc
Merge branch 'next' (accumulated 3.16 merge window patches) into master
2014-06-08 11:31:16 -07:00
pstore
fs/pstore: logging clean-up
2014-06-06 16:08:13 -07:00
qnx4
fs: push sync_filesystem() down to the file system's remount_fs()
2014-03-13 10:14:33 -04:00
qnx6
fs: push sync_filesystem() down to the file system's remount_fs()
2014-03-13 10:14:33 -04:00
quota
xfs: fix Q_XQUOTARM ioctl
2014-05-05 17:25:50 +10:00
ramfs
->splice_write() via ->write_iter()
2014-06-12 00:18:51 -04:00
reiserfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
romfs
switch simple generic_file_aio_read() users to ->read_iter()
2014-05-06 17:37:55 -04:00
squashfs
fs/squashfs/squashfs.h: replace pr_warning by pr_warn
2014-06-04 16:53:52 -07:00
sysfs
kernfs: move the last knowledge of sysfs out from kernfs
2014-06-03 08:11:18 -07:00
sysv
write_iter variants of {__,}generic_file_aio_write()
2014-05-06 17:38:00 -04:00
ubifs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
udf
udf: switch to ->write_iter()
2014-05-06 17:39:36 -04:00
ufs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
xfs
xfs: fix rounding error of fiemap length parameter
2014-08-04 11:35:35 +10:00
aio.c
Merge git://git.kvack.org/~bcrl/aio-next
2014-06-14 19:43:27 -05:00
anon_inodes.c
vfs: Allocate anon_inode_inode in anon_inode_init()
2014-03-27 09:52:54 -07:00
attr.c
fs,userns: Change inode_capable to capable_wrt_inode_uidgid
2014-06-10 13:57:22 -07:00
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
Merge branch 'x86/vdso' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
2014-06-05 08:05:29 -07:00
binfmt_em86.c
…
binfmt_flat.c
fs/binfmt_flat.c: make old_reloc() static
2014-06-04 16:54:21 -07:00
binfmt_misc.c
binfmt_misc: add missing 'break' statement
2014-04-03 16:21:16 -07:00
binfmt_script.c
…
binfmt_som.c
…
block_dev.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
buffer.c
mm: non-atomically mark page accessed during page cache allocation where possible
2014-06-04 16:54:10 -07:00
char_dev.c
…
compat_binfmt_elf.c
binfmt_elf: add ELF_HWCAP2 to compat auxv entries
2014-03-04 08:05:21 +00:00
compat_ioctl.c
fs/compat: convert to COMPAT_SYSCALL_DEFINE with changing parameter types
2014-03-06 16:30:44 +01:00
compat.c
locks: rename file-private locks to "open file description locks"
2014-04-22 08:23:58 -04:00
coredump.c
coredump: fix va_list corruption
2014-04-19 13:23:31 -07:00
dcache.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
dcookies.c
fs/compat: fix lookup_dcookie() parameter handling
2014-01-29 16:22:40 -08:00
direct-io.c
new helper: iov_iter_npages()
2014-05-06 17:32:52 -04:00
drop_caches.c
fs: convert use of typedef ctl_table to struct ctl_table
2014-06-06 16:08:16 -07:00
eventfd.c
eventfd_ctx_fdget(): use fdget() instead of fget()
2014-01-25 03:13:04 -05:00
eventpoll.c
epoll: fix use-after-free in eventpoll_release_file
2014-06-16 17:21:59 -10:00
exec.c
perf: Differentiate exec() and non-exec() comm events
2014-06-06 07:56:22 +02:00
fcntl.c
locks: rename file-private locks to "open file description locks"
2014-04-22 08:23:58 -04:00
fhandle.c
…
file_table.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-06-12 10:30:18 -07:00
file.c
fs/file.c: don't open-code kvfree()
2014-05-06 17:31:10 -04:00
filesystems.c
sys_sysfs: Add CONFIG_SYSFS_SYSCALL
2014-04-03 16:21:05 -07:00
fs_struct.c
…
fs-writeback.c
One of the main highlights this time, is not the patches themselves
2014-04-04 14:49:16 -07:00
inode.c
fs,userns: Change inode_capable to capable_wrt_inode_uidgid
2014-06-10 13:57:22 -07:00
internal.h
…
ioctl.c
…
Kconfig
kernfs: add CONFIG_KERNFS
2014-02-07 16:08:57 -08:00
Kconfig.binfmt
…
libfs.c
fs/libfs.c: add generic data flush to fsync
2014-06-04 16:53:55 -07:00
locks.c
locks: set fl_owner for leases back to current->files
2014-06-10 12:29:05 -04:00
Makefile
block: move ioprio.c from fs/ to block/
2014-05-19 11:02:18 -06:00
mbcache.c
ext4: each filesystem creates and uses its own mb_cache
2014-03-18 19:24:49 -04:00
mount.h
reduce m_start() cost...
2014-04-01 23:19:09 -04:00
mpage.c
fs/block_dev.c: add bdev_read_page() and bdev_write_page()
2014-06-04 16:54:02 -07:00
namei.c
fs,userns: Change inode_capable to capable_wrt_inode_uidgid
2014-06-10 13:57:22 -07:00
namespace.c
VFS: Make delayed_free() call free_vfsmnt()
2014-04-01 23:19:18 -04:00
no-block.c
…
open.c
new methods: ->read_iter() and ->write_iter()
2014-05-06 17:36:00 -04:00
pipe.c
new helper: copy_page_from_iter()
2014-05-06 17:39:42 -04:00
pnode.c
smarter propagate_mnt()
2014-04-01 23:19:08 -04:00
pnode.h
smarter propagate_mnt()
2014-04-01 23:19:08 -04:00
posix_acl.c
posix_acl: handle NULL ACL in posix_acl_equiv_mode
2014-05-06 13:58:42 -04:00
proc_namespace.c
reduce m_start() cost...
2014-04-01 23:19:09 -04:00
read_write.c
switch simple generic_file_aio_read() users to ->read_iter()
2014-05-06 17:37:55 -04:00
readdir.c
fanotify: create FAN_ACCESS event for readdir
2014-06-04 16:53:52 -07:00
select.c
…
seq_file.c
…
signalfd.c
…
splice.c
Merge commit '9f12600fe425bc28f0ccba034a77783c09c15af4' into for-linus
2014-06-12 00:28:09 -04:00
stack.c
…
stat.c
…
statfs.c
…
super.c
fs/superblock: avoid locking counting inodes and dentries before reclaiming them
2014-06-04 16:54:11 -07:00
sync.c
Revert "writeback: do not sync data dirtied after sync start"
2014-02-22 02:02:28 +01:00
timerfd.c
timerfd: support CLOCK_BOOTTIME clock
2014-01-23 16:57:40 -08:00
utimes.c
…
xattr.c
…