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authorLuis Henriques <lhenriques@suse.com>2019-03-21 13:20:09 +0300
committerIlya Dryomov <idryomov@gmail.com>2019-05-07 20:22:36 +0300
commit3886274adf34a4e38417772e3d1c0b213380004e (patch)
treee72c79e8deac454d36538894e162694b02d2af3c /fs/ceph/export.c
parent1b52931ca9b5b87e237c591f99201b6254c00809 (diff)
downloadlinux-3886274adf34a4e38417772e3d1c0b213380004e.tar.xz
ceph: factor out ceph_lookup_inode()
This function will be used by __fh_to_dentry and by the quotas code, to find quota realm inodes that are not visible in the mountpoint. Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/export.c')
-rw-r--r--fs/ceph/export.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index 3c59ad180ef0..d64e7472fa41 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -59,7 +59,7 @@ static int ceph_encode_fh(struct inode *inode, u32 *rawfh, int *max_len,
return type;
}
-static struct dentry *__fh_to_dentry(struct super_block *sb, u64 ino)
+struct inode *ceph_lookup_inode(struct super_block *sb, u64 ino)
{
struct ceph_mds_client *mdsc = ceph_sb_to_client(sb)->mdsc;
struct inode *inode;
@@ -91,13 +91,23 @@ static struct dentry *__fh_to_dentry(struct super_block *sb, u64 ino)
ihold(inode);
ceph_mdsc_put_request(req);
if (!inode)
- return ERR_PTR(-ESTALE);
+ return err < 0 ? ERR_PTR(err) : ERR_PTR(-ESTALE);
if (inode->i_nlink == 0) {
iput(inode);
return ERR_PTR(-ESTALE);
}
}
+ return inode;
+}
+
+static struct dentry *__fh_to_dentry(struct super_block *sb, u64 ino)
+{
+ struct inode *inode = ceph_lookup_inode(sb, ino);
+
+ if (IS_ERR(inode))
+ return ERR_CAST(inode);
+
return d_obtain_alias(inode);
}