locks: pass the cmd value to fcntl_getlk/getlk64
Once we introduce file private locks, we'll need to know what cmd value
was used, as that affects the ownership and whether a conflict would
arise.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
diff --git a/fs/fcntl.c b/fs/fcntl.c
index ef68665..7ef7f2d 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -273,7 +273,7 @@
err = setfl(fd, filp, arg);
break;
case F_GETLK:
- err = fcntl_getlk(filp, (struct flock __user *) arg);
+ err = fcntl_getlk(filp, cmd, (struct flock __user *) arg);
break;
case F_SETLK:
case F_SETLKW:
@@ -389,7 +389,7 @@
switch (cmd) {
case F_GETLK64:
- err = fcntl_getlk64(f.file, (struct flock64 __user *) arg);
+ err = fcntl_getlk64(f.file, cmd, (struct flock64 __user *) arg);
break;
case F_SETLK64:
case F_SETLKW64:
diff --git a/fs/locks.c b/fs/locks.c
index 57f1d5f..442052b 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1898,7 +1898,7 @@
/* Report the first existing lock that would conflict with l.
* This implements the F_GETLK command of fcntl().
*/
-int fcntl_getlk(struct file *filp, struct flock __user *l)
+int fcntl_getlk(struct file *filp, unsigned int cmd, struct flock __user *l)
{
struct file_lock file_lock;
struct flock flock;
@@ -2066,7 +2066,7 @@
/* Report the first existing lock that would conflict with l.
* This implements the F_GETLK command of fcntl().
*/
-int fcntl_getlk64(struct file *filp, struct flock64 __user *l)
+int fcntl_getlk64(struct file *filp, unsigned int cmd, struct flock64 __user *l)
{
struct file_lock file_lock;
struct flock64 flock;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 5ddeb8d..ae91dce 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -993,12 +993,12 @@
extern void send_sigio(struct fown_struct *fown, int fd, int band);
#ifdef CONFIG_FILE_LOCKING
-extern int fcntl_getlk(struct file *, struct flock __user *);
+extern int fcntl_getlk(struct file *, unsigned int, struct flock __user *);
extern int fcntl_setlk(unsigned int, struct file *, unsigned int,
struct flock __user *);
#if BITS_PER_LONG == 32
-extern int fcntl_getlk64(struct file *, struct flock64 __user *);
+extern int fcntl_getlk64(struct file *, unsigned int, struct flock64 __user *);
extern int fcntl_setlk64(unsigned int, struct file *, unsigned int,
struct flock64 __user *);
#endif
@@ -1031,7 +1031,8 @@
extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
extern int lock_may_write(struct inode *, loff_t start, unsigned long count);
#else /* !CONFIG_FILE_LOCKING */
-static inline int fcntl_getlk(struct file *file, struct flock __user *user)
+static inline int fcntl_getlk(struct file *file, unsigned int cmd,
+ struct flock __user *user)
{
return -EINVAL;
}
@@ -1043,7 +1044,8 @@
}
#if BITS_PER_LONG == 32
-static inline int fcntl_getlk64(struct file *file, struct flock64 __user *user)
+static inline int fcntl_getlk64(struct file *file, unsigned int cmd,
+ struct flock64 __user *user)
{
return -EINVAL;
}