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41c1358e91
linux-next/fs/cifs
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Steve French 41c1358e91 CIFS: SMB2/SMB3 Copy offload support (refcopy) phase 1 
This first patch adds the ability for us to do a server side copy
(ie fast copy offloaded to the server to perform, aka refcopy)

"cp --reflink"

of one file to another located on the same server.  This
is much faster than traditional copy (which requires
reading and writing over the network and extra
memcpys).

This first version is not going to be copy
files larger than about 1MB (to Samba) until I add
support for multiple chunks and for autoconfiguring
the chunksize.

It includes:
1) processing of the ioctl
2) marshalling and sending the SMB2/SMB3 fsctl over the network
3) simple parsing of the response

It does not include yet (these will be in followon patches to come soon):
1) support for multiple chunks
2) support for autoconfiguring and remembering the chunksize
3) Support for the older style copychunk which Samba 4.1 server supports
(because this requires write permission on the target file, which
cp does not give you, apparently per-posix).  This may require
a distinct tool (other than cp) and other ioctl to implement.

Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-11-14 00:05:36 -06:00
..
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: try to handle the MUST SecurityFlags sanely 2013-06-26 17:31:55 -05:00
cifs_debug.h [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifs_dfs_ref.c cifs: fix composing of mount options for DFS referrals 2013-05-24 13:08:31 -05:00
cifs_fs_sb.h cifs: Convert struct cifs_sb_info to use kuids and kgids 2013-02-13 07:28:54 -08:00
cifs_spnego.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifs_spnego.h [CIFS] Rename three structures to avoid camel case 2011-05-27 04:34:02 +00:00
cifs_unicode.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifs_unicode.h cifs: add new case-insensitive conversion routines that are based on wchar_t's 2013-09-08 14:38:05 -05:00
cifs_uniupr.h cifs: correction of unicode header files 2010-08-20 00:46:42 +00:00
cifsacl.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifsacl.h cifs: fix SID binary to string conversion 2012-12-11 11:48:49 -06:00
cifsencrypt.c cifs: Use data structures to compute NTLMv2 response offsets 2013-11-11 16:58:11 -06:00
cifsfs.c cifs: Fix inability to write files >2GB to SMB2/3 shares 2013-10-07 09:54:45 -05:00
cifsfs.h [CIFS] update cifs.ko version 2013-09-25 19:01:27 -05:00
cifsglob.h CIFS: SMB2/SMB3 Copy offload support (refcopy) phase 1 2013-11-14 00:05:36 -06:00
cifspdu.h cifs: Use data structures to compute NTLMv2 response offsets 2013-11-11 16:58:11 -06:00
cifsproto.h Allow setting per-file compression via CIFS protocol 2013-11-02 12:52:44 -05:00
cifssmb.c Allow setting per-file compression via CIFS protocol 2013-11-02 12:52:44 -05:00
connect.c cifs: Send a logoff request before removing a smb session 2013-11-02 12:52:35 -05:00
dir.c cifs: don't spam the logs on unexpected lookup errors 2013-11-11 16:34:53 -06:00
dns_resolve.c cifs: fix composing of mount options for DFS referrals 2013-05-24 13:08:31 -05:00
dns_resolve.h DNS: Separate out CIFS DNS Resolver code 2010-08-05 17:17:51 +00:00
export.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
file.c [CIFS] O_DIRECT opens should work on directio mounts 2013-11-11 16:42:37 -06:00
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 CIFS: Fix symbolic links usage 2013-11-11 16:31:03 -06:00
ioctl.c CIFS: SMB2/SMB3 Copy offload support (refcopy) phase 1 2013-11-14 00:05:36 -06:00
Kconfig [CIFS] SMB3 Signing enablement 2013-06-26 23:45:05 -05:00
link.c CIFS: Implement follow_link for SMB2 2013-09-08 14:27:34 -05:00
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 cifs: Make big endian multiplex ID sequences monotonic on the wire 2013-11-02 12:51:53 -05:00
netmisc.c cifs: change ERRnomem error mapping from ENOMEM to EREMOTEIO 2013-11-11 16:33:25 -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 CIFS: Fix symbolic links usage 2013-11-11 16:31:03 -06:00
rfc1002pdu.h [CIFS] whitespace cleanup 2007-06-05 18:30:44 +00:00
sess.c cifs: Allow LANMAN auth method for servers supporting unencapsulated authentication methods 2013-10-07 09:57:11 -05:00
smb1ops.c CIFS: Fix symbolic links usage 2013-11-11 16:31:03 -06:00
smb2file.c CIFS: Store lease state itself rather than a mapped oplock value 2013-09-09 22:52:05 -05:00
smb2glob.h [CIFS] SMB3 Signing enablement 2013-06-26 23:45:05 -05:00
smb2inode.c CIFS: Fix symbolic links usage 2013-11-11 16:31:03 -06:00
smb2maperror.c cifs: change ERRnomem error mapping from ENOMEM to EREMOTEIO 2013-11-11 16:33:25 -06:00
smb2misc.c CIFS: Respect epoch value from create lease context v2 2013-09-09 22:52:18 -05:00
smb2ops.c CIFS: SMB2/SMB3 Copy offload support (refcopy) phase 1 2013-11-14 00:05:36 -06:00
smb2pdu.c Query File System Alignment 2013-11-02 12:52:41 -05:00
smb2pdu.h CIFS: SMB2/SMB3 Copy offload support (refcopy) phase 1 2013-11-14 00:05:36 -06:00
smb2proto.h CIFS: Fix symbolic links usage 2013-11-11 16:31:03 -06:00
smb2status.h CIFS: Add SMB2 status codes 2012-07-24 10:25:13 -05:00
smb2transport.c cifs: Send a logoff request before removing a smb session 2013-11-02 12:52:35 -05:00
smbencrypt.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
smberr.h cifs: map NT_STATUS_ERROR_WRITE_PROTECTED to -EROFS 2010-08-02 12:40:40 +00:00
smbfsctl.h do not treat non-symlink reparse points as valid symlinks 2013-10-05 21:54:18 -05:00
transport.c cifs: Send a logoff request before removing a smb session 2013-11-02 12:52:35 -05:00
winucase.c [CIFS] quiet sparse compile warning 2013-09-08 14:54:24 -05:00
xattr.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00