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linux/fs/ceph
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Luis Henriques ea4cdc548e ceph: new mount option to disable usage of copy-from op 
Add a new mount option 'nocopyfrom' that will prevent the usage of the
RADOS 'copy-from' operation in cephfs.  This could be useful, for example,
for an administrator to temporarily mitigate any possible bugs in the
'copy-from' implementation.

Currently, only copy_file_range uses this RADOS operation.  Setting this
mount option will result in this syscall reverting to the default VFS
implementation, i.e. to perform the copies locally instead of doing remote
object copies.

Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-10-22 10:28:24 +02:00
..
acl.c libceph: introduce ceph_pagelist_alloc() 2018-10-22 10:28:21 +02:00
addr.c ceph: add non-blocking parameter to ceph_try_get_caps() 2018-10-22 10:28:23 +02:00
cache.c ceph: use timespec64 for inode timestamp 2018-08-02 21:26:12 +02:00
cache.h ceph: improve fscache revalidation 2016-06-01 10:31:50 +02:00
caps.c ceph: add non-blocking parameter to ceph_try_get_caps() 2018-10-22 10:28:23 +02:00
ceph_frag.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs.c libceph, ceph: change permission for readonly debugfs entries 2018-04-02 10:12:45 +02:00
dir.c ceph: use timespec64 for inode timestamp 2018-08-02 21:26:12 +02:00
export.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
file.c ceph: new mount option to disable usage of copy-from op 2018-10-22 10:28:24 +02:00
inode.c ceph: check if LOOKUPNAME request was aborted when filling trace 2018-10-22 10:28:20 +02:00
ioctl.c libceph, ceph: move ceph_calc_file_object_mapping() to striper.c 2018-04-02 10:12:43 +02:00
ioctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at 2018-01-01 12:45:37 -07:00
locks.c ceph: add newline to end of debug message format 2018-04-02 10:12:44 +02:00
Makefile ceph: quota: add initial infrastructure to support cephfs quotas 2018-04-02 11:17:51 +02:00
mds_client.c libceph: preallocate message data items 2018-10-22 10:28:22 +02:00
mds_client.h ceph: support cephfs' own feature bits 2018-08-13 17:55:44 +02:00
mdsmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
quota.c ceph: don't drop message if it contains more data than expected 2018-08-13 17:55:44 +02:00
snap.c ceph: use timespec64 for inode timestamp 2018-08-02 21:26:12 +02:00
strings.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
super.c ceph: new mount option to disable usage of copy-from op 2018-10-22 10:28:24 +02:00
super.h ceph: new mount option to disable usage of copy-from op 2018-10-22 10:28:24 +02:00
xattr.c libceph: introduce ceph_pagelist_alloc() 2018-10-22 10:28:21 +02:00