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linux/fs/cifs
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Amir Goldstein 5dae222a5f vfs: allow copy_file_range to copy across devices 
We want to enable cross-filesystem copy_file_range functionality
where possible, so push the "same superblock only" checks down to
the individual filesystem callouts so they can make their own
decisions about cross-superblock copy offload and fallack to
generic_copy_file_range() for cross-superblock copy.

[Amir] We do not call ->remap_file_range() in case the files are not
on the same sb and do not call ->copy_file_range() in case the files
do not belong to the same filesystem driver.

This changes behavior of the copy_file_range(2) syscall, which will
now allow cross filesystem in-kernel copy.  CIFS already supports
cross-superblock copy, between two shares to the same server. This
functionality will now be available via the copy_file_range(2) syscall.

Cc: Steve French <stfrench@microsoft.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-09 10:06:20 -07:00
..
asn1.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cache.c cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
cifs_debug.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cifs_debug.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cifs_dfs_ref.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cifs_fs_sb.h smb3: make default i/o size for smb3 mounts larger 2019-03-04 20:05:35 -06:00
cifs_ioctl.h SMB3: passthru query info doesn't check for SMB3 FSCTL passthru 2019-03-14 19:32:36 -05:00
cifs_spnego.c smb3: on kerberos mount if server doesn't specify auth type use krb5 2018-11-02 14:09:41 -05:00
cifs_spnego.h
cifs_unicode.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cifs_unicode.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cifs_uniupr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
cifsacl.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
cifsacl.h cifs: For SMB2 security informaion query, check for minimum sized security descriptor instead of sizeof FileAllInformation class 2018-06-04 19:19:24 -05:00
cifsencrypt.c cifs: remove coverity warning in calc_lanman_hash 2018-12-23 22:41:26 -06:00
cifsfs.c vfs: allow copy_file_range to copy across devices 2019-06-09 10:06:20 -07:00
cifsfs.h cifs: update module internal version number 2019-05-07 23:24:56 -05:00
cifsglob.h cifs: add support for SEEK_DATA and SEEK_HOLE 2019-05-15 22:27:53 -05:00
cifspdu.h smb3: missing defines and structs for reparse point handling 2018-11-02 14:09:41 -05:00
cifsproto.h cifs: Fix DFS cache refresher for DFS links 2019-05-07 23:24:54 -05:00
cifssmb.c cifs: rename and clarify CIFS_ASYNC_OP and CIFS_NO_RESP 2019-05-07 23:24:55 -05:00
connect.c cifs: Don't match port on SMBDirect transport 2019-05-15 22:27:45 -05:00
dfs_cache.c dfs_cache: fix a wrong use of kfree in flush_cache_ent() 2019-05-28 19:13:58 -05:00
dfs_cache.h cifs: Fix DFS cache refresher for DFS links 2019-05-07 23:24:54 -05:00
dir.c CIFS: make mknod() an smb_version_op 2019-03-14 19:32:36 -05:00
dns_resolve.c dns_resolver: Allow used keys to be invalidated 2019-05-15 17:35:54 +01:00
dns_resolve.h
export.c
file.c CIFS: cifs_read_allocate_pages: don't iterate through whole page array on ENOMEM 2019-05-29 14:02:11 -05:00
fscache.c cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
fscache.h cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
inode.c cifs: add fiemap support 2019-05-07 23:24:55 -05:00
ioctl.c cifs: add support for ioctl on directories 2018-10-23 21:16:05 -05:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
link.c SMB3: Clean up query symlink when reparse point 2019-05-07 23:24:55 -05:00
Makefile cifs: Add DFS cache routines 2018-12-28 10:05:58 -06:00
misc.c Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-05-06 20:15:06 -07:00
netmisc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
nterr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
nterr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
ntlmssp.h cifs: dynamic allocation of ntlmssp blob 2016-06-23 23:45:07 -05:00
readdir.c cifs: check ntwrk_buf_start for NULL before dereferencing it 2018-12-23 22:41:31 -06:00
rfc1002pdu.h
sess.c cifs: remove set but not used variable 'smb_buf' 2018-12-23 22:41:20 -06:00
smb1ops.c SMB3: Clean up query symlink when reparse point 2019-05-07 23:24:55 -05:00
smb2file.c SMB3: Allow persistent handle timeout to be configurable on mount 2019-04-01 14:33:36 -05:00
smb2glob.h cifs: change SMB2_OP_RENAME and SMB2_OP_HARDLINK to use compounding 2018-10-23 21:16:04 -05:00
smb2inode.c smb3: Add dynamic trace points for various compounded smb3 ops 2019-03-14 19:32:35 -05:00
smb2maperror.c fix incorrect error code mapping for OBJECTID_NOT_FOUND 2019-03-22 22:36:54 -05:00
smb2misc.c CIFS: keep FileInfo handle live during oplock break 2019-04-16 09:38:38 -05:00
smb2ops.c cifs: add support for SEEK_DATA and SEEK_HOLE 2019-05-15 22:27:53 -05:00
smb2pdu.c fs/cifs/smb2pdu.c: fix buffer free in SMB2_ioctl_free 2019-05-28 19:11:35 -05:00
smb2pdu.h Negotiate and save preferred compression algorithms 2019-05-07 23:24:55 -05:00
smb2proto.h smb3: Fix enumerating snapshots to Azure 2019-04-01 14:33:34 -05:00
smb2status.h cifs: don't use __constant_cpu_to_le32() 2019-05-07 23:24:54 -05:00
smb2transport.c CIFS: Only send SMB2_NEGOTIATE command on new TCP connections 2019-03-05 18:14:27 -06:00
smbdirect.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
smbdirect.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
smbencrypt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
smberr.h
smbfsctl.h cifs: add fiemap support 2019-05-07 23:24:55 -05:00
trace.c smb3: Cleanup license mess 2019-01-24 09:37:33 -06:00
trace.h cifs: Fix slab-out-of-bounds when tracing SMB tcon 2019-03-22 22:36:54 -05:00
transport.c cifs: use the right include for signal_pending() 2019-05-12 23:23:34 -05:00
winucase.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
xattr.c smb3: create smb3 equivalent alias for cifs pseudo-xattrs 2018-08-10 18:46:58 -05:00