iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/fs
History
Steve French 3d1a3745d8 Add sparse file support to SMB2/SMB3 mounts 
Many Linux filesystes make a file "sparse" when extending
a file with ftruncate. This does work for CIFS to Samba
(only) but not for SMB2/SMB3 (to Samba or Windows) since
there is a "set sparse" fsctl which is supposed to be
sent to mark a file as sparse.

This patch marks a file as sparse by sending this simple
set sparse fsctl if it is extended more than 2 pages.
It has been tested to Windows 8.1, Samba and various
SMB2/SMB3 servers which do support setting sparse (and
MacOS which does not appear to support the fsctl yet).
If a server share does not support setting a file
as sparse, then we do not retry setting sparse on that
share.

The disk space savings for sparse files can be quite
large (even more significant on Windows servers than Samba).

Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Shirish Pargaonkar <spargaonkar@suse.com>
2014-08-13 13:18:35 -05:00
..
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
adfs: add __printf verification, fix format/argument mismatches
2014-08-08 15:57:24 -07:00
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
AFS: Correctly assemble the client UUID
2014-07-29 10:14:36 -07:00
autofs4
autofs4: comment typo: remove a a doubled word
2014-08-08 15:57:19 -07:00
befs
fs/befs/linuxvfs.c: check superblock before dump operation
2014-08-08 15:57:20 -07:00
bfs
fs/bfs: use bfs prefix for dump_imap
2014-08-08 15:57:24 -07:00
btrfs
Merge branch 'sched/urgent' into sched/core, to merge fixes before applying new changes
2014-07-28 10:03:00 +02:00
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
Add sparse file support to SMB2/SMB3 mounts
2014-08-13 13:18:35 -05:00
coda
fs/coda: use linux/uaccess.h
2014-08-08 15:57:20 -07:00
configfs
fs/configfs: use pr_fmt
2014-06-04 16:53:53 -07:00
cramfs
fs/cramfs/inode.c: use linux/uaccess.h
2014-08-08 15:57:25 -07:00
debugfs
fs: debugfs: remove trailing whitespace
2014-07-09 16:58:21 -07:00
devpts
fs/devpts/inode.c: convert printk to pr_foo()
2014-06-06 16:08:14 -07:00
dlm
fs/dlm/debug_fs.c: remove unnecessary null test before debugfs_remove
2014-08-08 15:57:27 -07:00
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/namei.c: return is not a function
2014-08-08 15:57:18 -07:00
exofs
fs/exofs/ore_raid.c: replace count*size kzalloc by kcalloc
2014-08-08 15:57:24 -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
ext4: fix ext4_discard_allocated_blocks() if we can't allocate the pa struct
2014-07-30 22:17:17 -04:00
f2fs
f2fs: use for_each_set_bit to simplify the code
2014-08-04 13:20:53 -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
fs/fscache: make ctl_table static
2014-08-06 18:01:12 -07:00
fuse
fuse: add FUSE_NO_OPEN_SUPPORT flag to INIT
2014-07-22 16:37:43 +02:00
gfs2
Merge branch 'sched/urgent' into sched/core, to merge fixes before applying new changes
2014-07-28 10:03:00 +02:00
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
fs/hpfs/dnode.c: fix suspect code indent
2014-08-08 15:57:22 -07:00
hppfs
…
hugetlbfs
fs/hugetlbfs/inode.c: remove null test before kfree
2014-06-04 16:54:11 -07:00
isofs
initramfs: support initramfs that is bigger than 2GiB
2014-08-08 15:57:26 -07:00
jbd
fs/jbd/revoke.c: replace shift loop by ilog2
2014-05-21 10:26:13 +02:00
jbd2
sched: Remove proliferation of wait_on_bit() action functions
2014-07-16 15:10:39 +02:00
jffs2
MTD updates for 3.17-rc1
2014-08-08 18:13:21 -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
Merge 3.16-rc6 into driver-core-next
2014-07-21 10:07:25 -07:00
lockd
fs: lockd: Use ktime_get_ns()
2014-07-23 15:01:44 -07:00
logfs
fs/logfs/readwrite.c: kernel-doc warning fixes
2014-08-06 18:01:12 -07:00
minix
minix zmap block counts calculation fix
2014-08-08 15:57:20 -07:00
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/ebiederm/user-namespace
2014-08-09 17:10:41 -07:00
nfs_common
…
nfsd
Merge branch 'for-3.17' of git://linux-nfs.org/~bfields/linux
2014-08-09 14:31:18 -07:00
nilfs2
nilfs2: integrate sysfs support into driver
2014-08-08 15:57:21 -07:00
nls
…
notify
list: fix order of arguments for hlist_add_after(_rcu)
2014-08-06 18:01:24 -07:00
ntfs
ntfs: kernel-doc warning fixes
2014-08-06 18:01:12 -07:00
ocfs2
fs/ocfs2/slot_map.c: replace count*size kzalloc by kcalloc
2014-08-06 18:01:13 -07:00
omfs
fs/omfs/inode.c: replace count*size kzalloc by kcalloc
2014-08-08 15:57:25 -07:00
openpromfs
fs: push sync_filesystem() down to the file system's remount_fs()
2014-03-13 10:14:33 -04:00
proc
Revert "proc: Point /proc/{mounts,net} at /proc/thread-self/{mounts,net} instead of /proc/self/{mounts,net}"
2014-08-10 21:24:59 -07:00
pstore
fs/pstore/ram_core.c: replace count*size kmalloc by kmalloc_array
2014-08-08 15:57:25 -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/qnx6: update debugging to current functions
2014-08-08 15:57:26 -07:00
quota
quota: missing lock in dqcache_shrink_scan()
2014-07-15 22:36:18 +02:00
ramfs
fs/ramfs/file-nommu.c: replace count*size kzalloc by kcalloc
2014-08-08 15:57:18 -07:00
reiserfs
fs/reiserfs/xattr.c: fix blank line missing after declarations
2014-08-08 15:57:22 -07:00
romfs
fs/romfs/super.c: add blank line after declarations
2014-08-08 15:57:25 -07:00
squashfs
fs/squashfs/super.c: logging cleanup
2014-08-06 18:01:13 -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
fs/ufs/inode.c: kernel-doc warning fixes
2014-08-08 15:57:21 -07:00
xfs
xfs: null unused quota inodes when quota is on
2014-07-15 07:28:41 +10:00
aio.c
Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2014-08-04 10:09:27 -07:00
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
sched: Remove proliferation of wait_on_bit() action functions
2014-07-16 15:10:39 +02:00
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
Bluetooth: Move HCI socket definitions into its own header file
2014-07-11 13:53:04 +03:00
compat.c
locks: rename file-private locks to "open file description locks"
2014-04-22 08:23:58 -04:00
coredump.c
coredump: fix the setting of PF_DUMPCORE
2014-07-23 15:10:54 -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
direct-io: fix AIO regression
2014-08-01 02:35:51 -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
…
eventpoll.c
epoll: fix use-after-free in eventpoll_release_file
2014-06-16 17:21:59 -10:00
exec.c
fork/exec: cleanup mm initialization
2014-08-08 15:57:23 -07:00
fcntl.c
shm: add sealing API
2014-08-08 15:57:31 -07:00
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
sched: Remove proliferation of wait_on_bit() action functions
2014-07-16 15:10:39 +02:00
inode.c
mm: allow drivers to prevent new writable mappings
2014-08-08 15:57:31 -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: purge fl_owner_t from fs/locks.c
2014-07-13 21:39:07 -04:00
Makefile
block: move ioprio.c from fs/ to block/
2014-05-19 11:02:18 -06:00
mbcache.c
fs/mbcache: replace __builtin_log2() with ilog2()
2014-06-25 22:08:29 -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: umount on symlink leaks mnt count
2014-07-24 06:18:12 -04:00
namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2014-08-09 17:10:41 -07:00
no-block.c
…
open.c
vfs: fix check for fallocate on active swapfile
2014-08-01 02:36:04 -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
namespaces: Use task_lock and not rcu to protect nsproxy
2014-07-29 18:08:50 -07:00
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
fs/seq_file: fallback to vmalloc allocation
2014-07-03 09:21:54 -07:00
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: Use ktime_mono_to_real()
2014-07-23 10:18:02 -07:00
utimes.c
…
xattr.c
simple_xattr: permit 0-size extended attributes
2014-07-23 15:10:55 -07:00