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linux-sg2042/fs/nfs
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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
..
blocklayout treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
filelayout treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
flexfilelayout treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cache_lib.c NFS client updates for Linux 4.15 2017-11-17 14:18:00 -08:00
cache_lib.h NFS client updates for Linux 4.15 2017-11-17 14:18:00 -08:00
callback.c SUNRPC: Cache the process user cred in the RPC server listener 2019-04-24 09:46:35 -04:00
callback.h NFS CB_OFFLOAD xdr 2018-08-09 12:56:38 -04:00
callback_proc.c NFSv4.2 copy do not allocate memory under the lock 2018-11-22 13:54:46 -05:00
callback_xdr.c SUNRPC/nfs: Fix return value for nfs4_callback_compound() 2019-04-24 09:46:34 -04:00
client.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
delegation.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
delegation.h NFSv4: don't mark all open state for recovery when handling recallable state revoked flag 2019-05-09 16:26:57 -04:00
dir.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
direct.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
dns_resolve.c dns_resolver: Allow used keys to be invalidated 2019-05-15 17:35:54 +01:00
dns_resolve.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
export.c NFS: Pass the inode down to the getattr() callback 2018-06-04 12:07:07 -04:00
file.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
fscache-index.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
fscache.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
fscache.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
getroot.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
inode.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
internal.h NFS client updates for Linux 5.2 2019-05-09 14:33:15 -07:00
io.c NFS: Fix up documentation warnings 2019-02-20 15:14:21 -05:00
iostat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mount_clnt.c SUNRPC: Cache cred of process creating the rpc_client 2019-04-26 16:00:48 -04:00
namespace.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
netns.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs2super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs2xdr.c NFS: Convert NFSv2 to use the container user namespace 2019-04-26 17:26:37 -04:00
nfs3_fs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs3acl.c nfs: fix xfstest generic/099 failed on nfsv3 2019-02-20 17:33:55 -05:00
nfs3client.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
nfs3proc.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
nfs3super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs3xdr.c NFS: Convert NFSv3 to use the container user namespace 2019-04-26 16:54:27 -04:00
nfs4_fs.h NFS: Allow signal interruption of NFS4ERR_DELAYed operations 2019-04-25 14:18:14 -04:00
nfs4client.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
nfs4file.c vfs: allow copy_file_range to copy across devices 2019-06-09 10:06:20 -07:00
nfs4getroot.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs4idmap.c NFSv4: Convert the NFS client idmapper to use the container user namespace 2019-04-26 17:10:53 -04:00
nfs4idmap.h NFS: Move nfs_idmap.h into fs/nfs/ 2015-04-23 15:16:14 -04:00
nfs4namespace.c NFS: Fix up documentation warnings 2019-02-20 15:14:21 -05:00
nfs4proc.c NFSv4.1: Fix bug only first CB_NOTIFY_LOCK is handled 2019-05-30 15:51:07 -04:00
nfs4renewd.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
nfs4session.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
nfs4session.h NFSv4.1: Bump the default callback session slot count to 16 2019-03-02 16:25:26 -05:00
nfs4state.c NFSv4: don't mark all open state for recovery when handling recallable state revoked flag 2019-05-09 16:26:57 -04:00
nfs4super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs4sysctl.c nfs: Do not convert nfs_idmap_cache_timeout to jiffies 2018-01-18 15:10:47 -05:00
nfs4trace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs4trace.h NFS: Add trace events to report non-zero NFS status codes 2019-02-13 12:03:21 -05:00
nfs4xdr.c NFS: Fix handling of reply page vector 2019-04-11 15:23:48 -04:00
nfs42.h NFSv4.2: Add client support for the generic 'layouterror' RPC call 2019-03-01 16:20:16 -05:00
nfs42proc.c NFSv4.1 fix incorrect return value in copy_file_range 2019-04-11 15:23:48 -04:00
nfs42xdr.c NFSv4.2: Add client support for the generic 'layouterror' RPC call 2019-03-01 16:20:16 -05:00
nfsroot.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfstrace.c NFS: Add trace events to report non-zero NFS status codes 2019-02-13 12:03:21 -05:00
nfstrace.h NFS: Add trace events to report non-zero NFS status codes 2019-02-13 12:03:21 -05:00
pagelist.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
pnfs.c NFS: Add a helper to return a pointer to the open context of a struct nfs_page 2019-04-25 14:18:15 -04:00
pnfs.h NFS: Add a helper to return a pointer to the open context of a struct nfs_page 2019-04-25 14:18:15 -04:00
pnfs_dev.c NFS/flexfiles: Speed up read failover when DSes are down 2019-03-01 22:37:38 -05:00
pnfs_nfs.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
proc.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
read.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
super.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
symlink.c nfs: pass the correct prototype to read_cache_page 2019-05-09 16:26:57 -04:00
sysctl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
unlink.c NFS: Fix up documentation warnings 2019-02-20 15:14:21 -05:00
write.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00