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| author | Luis Henriques <lhenriques@suse.com> | 2020-04-07 11:30:20 +0100 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2020-06-01 13:22:53 +0200 |
| commit | dffdcd71458e699e839f0bf47c3d42d64210b939 (patch) | |
| tree | 27649741f8a1fab8fca00cc7f68c4cb59e73d936 /fs/ceph/dir.c | |
| parent | daa668fbacfdb9147b1828fc0f97b685bf4a51e3 (diff) | |
| download | linux-stable-dffdcd71458e699e839f0bf47c3d42d64210b939.tar.gz linux-stable-dffdcd71458e699e839f0bf47c3d42d64210b939.tar.bz2 linux-stable-dffdcd71458e699e839f0bf47c3d42d64210b939.zip | |
ceph: allow rename operation under different quota realms
Returning -EXDEV when trying to 'mv' files/directories from different
quota realms results in copy+unlink operations instead of the faster
CEPH_MDS_OP_RENAME. This will occur even when there aren't any quotas
set in the destination directory, or if there's enough space left for
the new file(s).
This patch adds a new helper function to be called on rename operations
which will allow these operations if they can be executed. This patch
mimics userland fuse client commit b8954e5734b3 ("client:
optimize rename operation under different quota root").
Since ceph_quota_is_same_realm() is now called only from this new
helper, make it static.
URL: https://tracker.ceph.com/issues/44791
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/dir.c')
| -rw-r--r-- | fs/ceph/dir.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 93476d447a4b..39f5311404b0 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -1209,11 +1209,12 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry, op = CEPH_MDS_OP_RENAMESNAP; else return -EROFS; + } else if (old_dir != new_dir) { + err = ceph_quota_check_rename(mdsc, d_inode(old_dentry), + new_dir); + if (err) + return err; } - /* don't allow cross-quota renames */ - if ((old_dir != new_dir) && - (!ceph_quota_is_same_realm(old_dir, new_dir))) - return -EXDEV; dout("rename dir %p dentry %p to dir %p dentry %p\n", old_dir, old_dentry, new_dir, new_dentry); |