diff options
| author | Miklos Szeredi <mszeredi@suse.cz> | 2012-06-05 15:10:25 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-07-14 16:33:16 +0400 |
| commit | 2d83bde9a16e18eafdc73a3a1f4a8eb110e49672 (patch) | |
| tree | 04e2277dba94d252f4b74cf1acb728880b606c2e /fs/ceph/file.c | |
| parent | 3819219b592159725069eb16a7a46f58e4ecef32 (diff) | |
ceph: implement i_op->atomic_open()
Add an ->atomic_open implementation which replaces the atomic lookup+open+create
operation implemented via ->lookup and ->create operations.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/ceph/file.c')
| -rw-r--r-- | fs/ceph/file.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 4bf9773e6a36..e34dc22e75a9 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -213,21 +213,15 @@ out: * may_open() fails, the struct *file gets cleaned up (i.e. * ceph_release gets called). So fear not! */ -/* - * flags - * path_lookup_open -> LOOKUP_OPEN - * path_lookup_create -> LOOKUP_OPEN|LOOKUP_CREATE - */ -struct dentry *ceph_lookup_open(struct inode *dir, struct dentry *dentry, - struct nameidata *nd, int mode) +struct file *ceph_lookup_open(struct inode *dir, struct dentry *dentry, + struct opendata *od, unsigned flags, umode_t mode) { struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb); struct ceph_mds_client *mdsc = fsc->mdsc; - struct file *file; + struct file *file = NULL; struct ceph_mds_request *req; struct dentry *ret; int err; - int flags = nd->intent.open.flags; dout("ceph_lookup_open dentry %p '%.*s' flags %d mode 0%o\n", dentry, dentry->d_name.len, dentry->d_name.name, flags, mode); @@ -253,14 +247,19 @@ struct dentry *ceph_lookup_open(struct inode *dir, struct dentry *dentry, err = ceph_handle_notrace_create(dir, dentry); if (err) goto out; - file = lookup_instantiate_filp(nd, req->r_dentry, ceph_open); + file = finish_open(od, req->r_dentry, ceph_open); if (IS_ERR(file)) err = PTR_ERR(file); out: ret = ceph_finish_lookup(req, dentry, err); ceph_mdsc_put_request(req); dout("ceph_lookup_open result=%p\n", ret); - return ret; + + if (IS_ERR(ret)) + return ERR_CAST(ret); + + dput(ret); + return err ? ERR_PTR(err) : file; } int ceph_release(struct inode *inode, struct file *file) |