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ceph: add ceph_get_cap_for_mds function.

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Signed-off-by: Greg Farnum <gregf@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Greg Farnum 2010-06-30 12:44:34 -07:00 committed by Sage Weil
parent 154f42c2c3
commit 2bc50259fa
2 changed files with 12 additions and 0 deletions
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10
fs/ceph/caps.c
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@ -327,6 +327,16 @@ static struct ceph_cap *__get_cap_for_mds(struct ceph_inode_info *ci, int mds)
return NULL;
}
struct ceph_cap *ceph_get_cap_for_mds(struct ceph_inode_info *ci, int mds)
{
struct ceph_cap *cap;
spin_lock(&ci->vfs_inode.i_lock);
cap = __get_cap_for_mds(ci, mds);
spin_unlock(&ci->vfs_inode.i_lock);
return cap;
}
/*
* Return id of any MDS with a cap, preferably FILE_WR|BUFFER|EXCL, else -1.
*/

2
fs/ceph/super.h
View File

@ -816,6 +816,8 @@ extern int ceph_write_inode(struct inode *inode, struct writeback_control *wbc);
extern int ceph_fsync(struct file *file, int datasync);
extern void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session);
extern struct ceph_cap *ceph_get_cap_for_mds(struct ceph_inode_info *ci,
int mds);
extern int ceph_get_cap_mds(struct inode *inode);
extern void ceph_get_cap_refs(struct ceph_inode_info *ci, int caps);
extern void ceph_put_cap_refs(struct ceph_inode_info *ci, int had);