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| author | Luis Henriques <lhenriques@suse.com> | 2019-09-09 16:48:54 +0100 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2019-09-16 12:06:25 +0200 |
| commit | 6fd4e634835208ddb331234bfa51d75396a5c42c (patch) | |
| tree | e264a083434b95a0d7738516b8e71598a765c3ed /fs/ceph | |
| parent | 48f930ea6de6f48fd20be54ec4716c545751a6d9 (diff) | |
| download | linux-6fd4e634835208ddb331234bfa51d75396a5c42c.tar.gz linux-6fd4e634835208ddb331234bfa51d75396a5c42c.tar.bz2 linux-6fd4e634835208ddb331234bfa51d75396a5c42c.zip | |
ceph: allow object copies across different filesystems in the same cluster
OSDs are able to perform object copies across different pools. Thus,
there's no need to prevent copy_file_range from doing remote copies if the
source and destination superblocks are different. Only return -EXDEV if
they have different fsid (the cluster ID).
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph')
| -rw-r--r-- | fs/ceph/file.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/fs/ceph/file.c b/fs/ceph/file.c index ff17a81bf2e2..d277f71abe0b 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1922,6 +1922,7 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off, struct ceph_inode_info *src_ci = ceph_inode(src_inode); struct ceph_inode_info *dst_ci = ceph_inode(dst_inode); struct ceph_cap_flush *prealloc_cf; + struct ceph_fs_client *src_fsc = ceph_inode_to_client(src_inode); struct ceph_object_locator src_oloc, dst_oloc; struct ceph_object_id src_oid, dst_oid; loff_t endoff = 0, size; @@ -1931,8 +1932,16 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off, int src_got = 0, dst_got = 0, err, dirty; bool do_final_copy = false; - if (src_inode->i_sb != dst_inode->i_sb) - return -EXDEV; + if (src_inode->i_sb != dst_inode->i_sb) { + struct ceph_fs_client *dst_fsc = ceph_inode_to_client(dst_inode); + + if (ceph_fsid_compare(&src_fsc->client->fsid, + &dst_fsc->client->fsid)) { + dout("Copying files across clusters: src: %pU dst: %pU\n", + &src_fsc->client->fsid, &dst_fsc->client->fsid); + return -EXDEV; + } + } if (ceph_snap(dst_inode) != CEPH_NOSNAP) return -EROFS; @@ -1944,7 +1953,7 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off, * efficient). */ - if (ceph_test_mount_opt(ceph_inode_to_client(src_inode), NOCOPYFROM)) + if (ceph_test_mount_opt(src_fsc, NOCOPYFROM)) return -EOPNOTSUPP; if ((src_ci->i_layout.stripe_unit != dst_ci->i_layout.stripe_unit) || @@ -2059,7 +2068,7 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off, dst_ci->i_vino.ino, dst_objnum); /* Do an object remote copy */ err = ceph_osdc_copy_from( - &ceph_inode_to_client(src_inode)->client->osdc, + &src_fsc->client->osdc, src_ci->i_vino.snap, 0, &src_oid, &src_oloc, CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL | |