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ceph: provide seperate {inode,file}_operations for snapdir

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remove all unsupported operations from {inode,file}_operations.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
This commit is contained in:
Yan, Zheng 2015-01-14 13:46:04 +08:00 committed by Ilya Dryomov
parent 1f041a89b4
commit 38c48b5f0a
3 changed files with 19 additions and 4 deletions
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17
fs/ceph/dir.c
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@ -26,8 +26,6 @@
* point by name.
*/
const struct inode_operations ceph_dir_iops;
const struct file_operations ceph_dir_fops;
const struct dentry_operations ceph_dentry_ops;
/*
@ -1335,6 +1333,13 @@ const struct file_operations ceph_dir_fops = {
.fsync = ceph_dir_fsync,
};
const struct file_operations ceph_snapdir_fops = {
.iterate = ceph_readdir,
.llseek = ceph_dir_llseek,
.open = ceph_open,
.release = ceph_release,
};
const struct inode_operations ceph_dir_iops = {
.lookup = ceph_lookup,
.permission = ceph_permission,
@ -1357,6 +1362,14 @@ const struct inode_operations ceph_dir_iops = {
.atomic_open = ceph_atomic_open,
};
const struct inode_operations ceph_snapdir_iops = {
.lookup = ceph_lookup,
.permission = ceph_permission,
.getattr = ceph_getattr,
.mkdir = ceph_mkdir,
.rmdir = ceph_unlink,
};
const struct dentry_operations ceph_dentry_ops = {
.d_revalidate = ceph_d_revalidate,
.d_release = ceph_d_release,

4
fs/ceph/inode.c
View file

@ -82,8 +82,8 @@ struct inode *ceph_get_snapdir(struct inode *parent)
inode->i_mode = parent->i_mode;
inode->i_uid = parent->i_uid;
inode->i_gid = parent->i_gid;
inode->i_op = &ceph_dir_iops;
inode->i_fop = &ceph_dir_fops;
inode->i_op = &ceph_snapdir_iops;
inode->i_fop = &ceph_snapdir_fops;
ci->i_snap_caps = CEPH_CAP_PIN; /* so we can open */
ci->i_rbytes = 0;
return inode;

2
fs/ceph/super.h
View file

@ -893,7 +893,9 @@ extern void ceph_fill_inline_data(struct inode *inode, struct page *locked_page,
int ceph_uninline_data(struct file *filp, struct page *locked_page);
/* dir.c */
extern const struct file_operations ceph_dir_fops;
extern const struct file_operations ceph_snapdir_fops;
extern const struct inode_operations ceph_dir_iops;
extern const struct inode_operations ceph_snapdir_iops;
extern const struct dentry_operations ceph_dentry_ops, ceph_snap_dentry_ops,
ceph_snapdir_dentry_ops;