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| author | Sage Weil <sage@inktank.com> | 2013-01-31 20:53:41 +0100 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-02-14 03:25:51 +0100 |
| commit | 3adf654ddbc355c23d75c6684128d4b067a7b792 (patch) | |
| tree | f667b613bfc1d08494628a4e4641cbf9ab30563f | |
| parent | ceph: support hidden vxattrs (diff) | |
| download | linux-3adf654ddbc355c23d75c6684128d4b067a7b792.tar.xz linux-3adf654ddbc355c23d75c6684128d4b067a7b792.zip | |
ceph: pass unhandled ceph.* setxattrs through to MDS
If we do not specifically understand a setxattr on a ceph.* virtual
xattr, send it through to the MDS. This allows us to implement new
functionality via the MDS without direct support on the client side.
Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Sam Lang <sam.lang@inktank.com>
| -rw-r--r-- | fs/ceph/xattr.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index 43063d0dee8f..edc47de77fed 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -777,6 +777,10 @@ int ceph_setxattr(struct dentry *dentry, const char *name, if (vxattr && vxattr->readonly) return -EOPNOTSUPP; + /* pass any unhandled ceph.* xattrs through to the MDS */ + if (!strncmp(name, XATTR_CEPH_PREFIX, XATTR_CEPH_PREFIX_LEN)) + goto do_sync_unlocked; + /* preallocate memory for xattr name, value, index node */ err = -ENOMEM; newname = kmemdup(name, name_len + 1, GFP_NOFS); @@ -833,6 +837,7 @@ retry: do_sync: spin_unlock(&ci->i_ceph_lock); +do_sync_unlocked: err = ceph_sync_setxattr(dentry, name, value, size, flags); out: kfree(newname); |