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Christoph Hellwig 04b38d6012 vfs: pull btrfs clone API to vfs layer 
The btrfs clone ioctls are now adopted by other file systems, with NFS
and CIFS already having support for them, and XFS being under active
development.  To avoid growth of various slightly incompatible
implementations, add one to the VFS.  Note that clones are different from
file copies in several ways:

 - they are atomic vs other writers
 - they support whole file clones
 - they support 64-bit legth clones
 - they do not allow partial success (aka short writes)
 - clones are expected to be a fast metadata operation

Because of that it would be rather cumbersome to try to piggyback them on
top of the recent clone_file_range infrastructure.  The converse isn't
true and the clone_file_range system call could try clone file range as
a first attempt to copy, something that further patches will enable.

Based on earlier work from Peng Tao.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-07 23:11:33 -05:00
..
asn1.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cache.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifs_debug.c cifs: fix MUST SecurityFlags filtering 2015-01-26 19:38:26 -06:00
cifs_debug.h cifs: convert printk(LEVEL...) to pr_<level> 2014-12-07 22:48:07 -06:00
cifs_dfs_ref.c Fix that several functions handle incorrect value of mapchars 2015-05-10 19:56:35 -05:00
cifs_fs_sb.h Allow conversion of characters in Mac remap range. Part 1 2014-10-16 15:20:20 -05:00
cifs_ioctl.h Add way to query server fs info for smb3 2015-08-20 10:19:25 -05:00
cifs_spnego.c KEYS: Merge the type-specific data with the payload data 2015-10-21 15:18:36 +01:00
cifs_spnego.h
cifs_unicode.c Fix to convert SURROGATE PAIR 2015-05-20 13:12:51 -05:00
cifs_unicode.h Remap reserved posix characters by default (part 3/3) 2014-10-16 15:20:20 -05:00
cifs_uniupr.h
cifsacl.c KEYS: Merge the type-specific data with the payload data 2015-10-21 15:18:36 +01:00
cifsacl.h cifs: fix SID binary to string conversion 2012-12-11 11:48:49 -06:00
cifsencrypt.c cifs: use server timestamp for ntlmv2 authentication 2015-09-22 15:24:02 -05:00
cifsfs.c vfs: pull btrfs clone API to vfs layer 2015-12-07 23:11:33 -05:00
cifsfs.h vfs: pull btrfs clone API to vfs layer 2015-12-07 23:11:33 -05:00
cifsglob.h Add resilienthandles mount parm 2015-11-03 10:10:36 -06:00
cifspdu.h Add way to query server fs info for smb3 2015-08-20 10:19:25 -05:00
cifsproto.h Fix that several functions handle incorrect value of mapchars 2015-05-10 19:56:35 -05:00
cifssmb.c cifs: Fix use-after-free on mid_q_entry 2015-08-20 10:19:25 -05:00
connect.c Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6 2015-11-13 16:40:36 -08:00
dir.c Fix that several functions handle incorrect value of mapchars 2015-05-10 19:56:35 -05:00
dns_resolve.c cifs: fix composing of mount options for DFS referrals 2013-05-24 13:08:31 -05:00
dns_resolve.h
export.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
file.c mm, fs: introduce mapping_gfp_constraint() 2015-11-06 17:50:42 -08:00
fscache.c NFS client updates for Linux 3.13 2013-11-08 05:57:46 +09:00
fscache.h CIFS: FS-Cache: Uncache unread pages in cifs_readpages() before freeing them 2013-09-18 10:17:03 -05:00
inode.c [SMB3] Do not fall back to SMBWriteX in set_file_size error cases 2015-10-01 22:48:37 -05:00
ioctl.c vfs: pull btrfs clone API to vfs layer 2015-12-07 23:11:33 -05:00
Kconfig Allow parsing vers=3.11 on cifs mount 2015-06-27 20:23:32 -07:00
link.c Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-06-22 12:51:21 -07:00
Makefile cifs: add new case-insensitive conversion routines that are based on wchar_t's 2013-09-08 14:38:05 -05:00
misc.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
netmisc.c Fix signed/unsigned pointer warning 2014-12-14 14:55:57 -06:00
nterr.c CIFS: Rename 7 error codes to NT_ style 2012-07-24 10:25:10 -05:00
nterr.h CIFS: Rename 7 error codes to NT_ style 2012-07-24 10:25:10 -05:00
ntlmssp.h CIFS: Add session setup/logoff capability for SMB2 2012-07-24 21:54:57 +04:00
readdir.c fs: Drop unlikely before IS_ERR(_OR_NULL) 2015-09-29 15:13:58 +02:00
rfc1002pdu.h
sess.c KEYS: Merge the type-specific data with the payload data 2015-10-21 15:18:36 +01:00
smb1ops.c Fix that several functions handle incorrect value of mapchars 2015-05-10 19:56:35 -05:00
smb2file.c Add resilienthandles mount parm 2015-11-03 10:10:36 -06:00
smb2glob.h CIFS: Fix too big maxBuf size for SMB3 mounts 2014-02-14 16:50:47 -06:00
smb2inode.c CIFS: Fix wrong filename length for SMB2 2014-08-25 16:45:17 -05:00
smb2maperror.c Fix problem recognizing symlinks 2014-10-02 14:10:04 -05:00
smb2misc.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
smb2ops.c [SMB3] Enable checking for continuous availability and persistent handle support 2015-11-03 09:15:03 -06:00
smb2pdu.c Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6 2015-11-13 16:40:36 -08:00
smb2pdu.h [SMB3] Send durable handle v2 contexts when use of persistent handles required 2015-11-03 09:26:27 -06:00
smb2proto.h mfsymlinks support for SMB2.1/SMB3. Part 2 query symlink 2014-10-16 15:20:20 -05:00
smb2status.h CIFS: Add SMB2 status codes 2012-07-24 10:25:13 -05:00
smb2transport.c Convert MessageID in smb2_hdr to LE 2014-12-14 14:55:45 -06:00
smbencrypt.c cifs: use memzero_explicit to clear stack buffer 2015-01-19 15:32:13 -06:00
smberr.h
smbfsctl.h [SMB3] Send durable handle v2 contexts when use of persistent handles required 2015-11-03 09:26:27 -06:00
transport.c cifs: Fix use-after-free on mid_q_entry 2015-08-20 10:19:25 -05:00
winucase.c [CIFS] quiet sparse compile warning 2013-09-08 14:54:24 -05:00
xattr.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00