提交 4698afe8 编写于 作者: J J. Bruce Fields

locks: export setlease to filesystems

Export setlease so it can used by filesystems to implement their lease
methods.
Signed-off-by: N"J. Bruce Fields" <bfields@citi.umich.edu>
上级 f9ffed26
...@@ -1336,7 +1336,7 @@ int fcntl_getlease(struct file *filp) ...@@ -1336,7 +1336,7 @@ int fcntl_getlease(struct file *filp)
* *
* Called with kernel lock held. * Called with kernel lock held.
*/ */
static int setlease(struct file *filp, long arg, struct file_lock **flp) int setlease(struct file *filp, long arg, struct file_lock **flp)
{ {
struct file_lock *fl, **before, **my_before = NULL, *lease; struct file_lock *fl, **before, **my_before = NULL, *lease;
struct dentry *dentry = filp->f_path.dentry; struct dentry *dentry = filp->f_path.dentry;
...@@ -1421,6 +1421,7 @@ static int setlease(struct file *filp, long arg, struct file_lock **flp) ...@@ -1421,6 +1421,7 @@ static int setlease(struct file *filp, long arg, struct file_lock **flp)
out: out:
return error; return error;
} }
EXPORT_SYMBOL(setlease);
/** /**
* vfs_setlease - sets a lease on an open file * vfs_setlease - sets a lease on an open file
......
...@@ -872,6 +872,7 @@ extern int vfs_cancel_lock(struct file *filp, struct file_lock *fl); ...@@ -872,6 +872,7 @@ extern int vfs_cancel_lock(struct file *filp, struct file_lock *fl);
extern int flock_lock_file_wait(struct file *filp, struct file_lock *fl); extern int flock_lock_file_wait(struct file *filp, struct file_lock *fl);
extern int __break_lease(struct inode *inode, unsigned int flags); extern int __break_lease(struct inode *inode, unsigned int flags);
extern void lease_get_mtime(struct inode *, struct timespec *time); extern void lease_get_mtime(struct inode *, struct timespec *time);
extern int setlease(struct file *, long, struct file_lock **);
extern int vfs_setlease(struct file *, long, struct file_lock **); extern int vfs_setlease(struct file *, long, struct file_lock **);
extern int lease_modify(struct file_lock **, int); extern int lease_modify(struct file_lock **, int);
extern int lock_may_read(struct inode *, loff_t start, unsigned long count); extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
......
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