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| author |   Luis Henriques <lhenriques@suse.com> | 2019-03-21 10:20:09 +0000 |
|---|---|---|
| committer |   Ilya Dryomov <idryomov@gmail.com> | 2019-05-07 19:22:36 +0200 |
| commit | 3886274adf34a4e38417772e3d1c0b213380004e (patch) | |
| tree | e72c79e8deac454d36538894e162694b02d2af3c /fs/ceph | |
| parent | ceph: remove duplicated filelock ref increase (diff) | |
| download | linux-dev-3886274adf34a4e38417772e3d1c0b213380004e.tar.xz linux-dev-3886274adf34a4e38417772e3d1c0b213380004e.zip | |
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')
| -rw-r--r-- | fs/ceph/export.c | 14 | ||||
| -rw-r--r-- | fs/ceph/super.h | 1 |
2 files changed, 13 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); } diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 16c03188578e..976f200164f9 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -1082,6 +1082,7 @@ extern long ceph_ioctl(struct file *file, unsigned int cmd, unsigned long arg); /* export.c */ extern const struct export_operations ceph_export_ops; +struct inode *ceph_lookup_inode(struct super_block *sb, u64 ino); /* locks.c */ extern __init void ceph_flock_init(void); |