ceph: support copy_file_range file operation

Browse source

This commit implements support for the copy_file_range syscall in cephfs.
It is implemented using the RADOS 'copy-from' operation, which allows to
do a remote object copy, without the need to download/upload data from/to
the OSDs.

Some manual copy may however be required if the source/destination file
offsets aren't object aligned or if the copy length is smaller than the
object size.

Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

...

This commit is contained in:

Luis Henriques 2018-10-15 16:45:59 +01:00 • committed by Ilya Dryomov

parent 23ddf9bea9

commit 503f82a993

1 changed files with 293 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

294

fs/ceph/file.c

View file