filelock: move file locking definitions to separate header file

The file locking definitions have lived in fs.h since the dawn of time,
but they are only used by a small subset of the source files that
include it.

Move the file locking definitions to a new header file, and add the
appropriate #include directives to the source files that need them. By
doing this we trim down fs.h a bit and limit the amount of rebuilding
that has to be done when we make changes to the file locking APIs.

Reviewed-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Howells <dhowells@redhat.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Acked-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Acked-by: Steve French <stfrench@microsoft.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Jeff Layton <jlayton@kernel.org>

38 files changed, 38 insertions, 0 deletions

diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index b740017634ef..b6ba22975781 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -9,6 +9,7 @@
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/sched.h>
 #include <linux/file.h>
 #include <linux/stat.h>
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index fd8567b98e2b..2d6d7dae225a 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -9,6 +9,7 @@
 #include <linux/kernel.h>
 #include <linux/ktime.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/pagemap.h>
 #include <linux/rxrpc.h>
 #include <linux/key.h>
diff --git a/fs/attr.c b/fs/attr.c
index b45f30e516fa..f3eb8e57b451 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -14,6 +14,7 @@
 #include <linux/capability.h>
 #include <linux/fsnotify.h>
 #include <linux/fcntl.h>
+#include <linux/filelock.h>
 #include <linux/security.h>
 #include <linux/evm.h>
 #include <linux/ima.h>
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index f75ad432f375..2ce6cc443b48 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -9,6 +9,7 @@
 #include <linux/wait.h>
 #include <linux/writeback.h>
 #include <linux/iversion.h>
+#include <linux/filelock.h>
 
 #include "super.h"
 #include "mds_client.h"
diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c
index 9c8dc8a55e7e..cb51c7e9c8e2 100644
--- a/fs/ceph/locks.c
+++ b/fs/ceph/locks.c
@@ -7,6 +7,7 @@
 
 #include "super.h"
 #include "mds_client.h"
+#include <linux/filelock.h>
 #include <linux/ceph/pagelist.h>
 
 static u64 lock_secret;
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 10e00c624922..f052f190b2e8 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -12,6 +12,7 @@
 
 #include <linux/module.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/mount.h>
 #include <linux/slab.h>
 #include <linux/init.h>
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index cfdd5bf701a1..cd8171a1c9a0 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -26,6 +26,7 @@
 #include <uapi/linux/cifs/cifs_mount.h>
 #include "../smbfs_common/smb2pdu.h"
 #include "smb2pdu.h"
+#include <linux/filelock.h>
 
 #define SMB_PATH_MAX 260
 #define CIFS_PORT 445
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 23f10e0d6e7e..60dd4e37030a 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -15,6 +15,7 @@
  /* want to reuse a stale file handle and only the caller knows the file info */
 
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/kernel.h>
 #include <linux/vfs.h>
 #include <linux/slab.h>
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 22dfc1f8b4f1..1d9cc59d8259 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -9,6 +9,7 @@
  *
  */
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/backing-dev.h>
 #include <linux/stat.h>
 #include <linux/fcntl.h>
diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
index ba6cc50af390..9f1dd04b555a 100644
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -7,6 +7,7 @@
  *
  */
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/stat.h>
 #include <linux/slab.h>
 #include <linux/pagemap.h>
diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c
index 737f185aad8d..ed4357e62f35 100644
--- a/fs/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -4,6 +4,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/miscdevice.h>
 #include <linux/poll.h>
 #include <linux/dlm.h>
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 146c9ab0cd4b..7852e946fdf4 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -10,6 +10,7 @@
 #include <linux/mm.h>
 #include <linux/sched/task.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/file.h>
 #include <linux/fdtable.h>
 #include <linux/capability.h>
diff --git a/fs/file_table.c b/fs/file_table.c
index dd88701e54a9..372653b92617 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/security.h>
 #include <linux/cred.h>
 #include <linux/eventpoll.h>
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 875314ee6f59..1458412f2492 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -18,6 +18,7 @@
 #include <linux/falloc.h>
 #include <linux/uio.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 
 static int fuse_send_open(struct fuse_mount *fm, u64 nodeid,
 			  unsigned int open_flags, int opcode,
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index eea5be4fbf0e..e8e20a716004 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -15,6 +15,7 @@
 #include <linux/mm.h>
 #include <linux/mount.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/falloc.h>
 #include <linux/swap.h>
diff --git a/fs/inode.c b/fs/inode.c
index f453eb58fd03..d02dd8f1e967 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -5,6 +5,7 @@
  */
 #include <linux/export.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/mm.h>
 #include <linux/backing-dev.h>
 #include <linux/hash.h>
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
index 14d7f3599c63..000a6648f122 100644
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -12,6 +12,7 @@
 #include <linux/ethtool.h>
 #include <linux/falloc.h>
 #include <linux/mount.h>
+#include <linux/filelock.h>
 
 #include "glob.h"
 #include "smbfsctl.h"
diff --git a/fs/ksmbd/vfs.c b/fs/ksmbd/vfs.c
index ff0e7a4fcd4d..5851934dc85b 100644
--- a/fs/ksmbd/vfs.c
+++ b/fs/ksmbd/vfs.c
@@ -6,6 +6,7 @@
 
 #include <linux/kernel.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/uaccess.h>
 #include <linux/backing-dev.h>
 #include <linux/writeback.h>
diff --git a/fs/ksmbd/vfs_cache.c b/fs/ksmbd/vfs_cache.c
index da9163b00350..552c3882a8f4 100644
--- a/fs/ksmbd/vfs_cache.c
+++ b/fs/ksmbd/vfs_cache.c
@@ -5,6 +5,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 99fffc9cb958..e875a3571c41 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -12,6 +12,7 @@
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/nfs_fs.h>
 #include <linux/utsname.h>
 #include <linux/freezer.h>
diff --git a/fs/lockd/netns.h b/fs/lockd/netns.h
index 5bec78c8e431..17432c445fe6 100644
--- a/fs/lockd/netns.h
+++ b/fs/lockd/netns.h
@@ -3,6 +3,7 @@
 #define __LOCKD_NETNS_H__
 
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <net/netns/generic.h>
 
 struct lockd_net {
diff --git a/fs/locks.c b/fs/locks.c
index 8f01bee17715..a5cc90c958c9 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -52,6 +52,7 @@
 #include <linux/capability.h>
 #include <linux/file.h>
 #include <linux/fdtable.h>
+#include <linux/filelock.h>
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/security.h>
diff --git a/fs/namei.c b/fs/namei.c
index 309ae6fc8c99..60a9d3ac941f 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -20,6 +20,7 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/namei.h>
 #include <linux/pagemap.h>
 #include <linux/sched/mm.h>
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index d8ec889a4b3f..b0f3c9339e70 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -31,6 +31,7 @@
 #include <linux/swap.h>
 
 #include <linux/uaccess.h>
+#include <linux/filelock.h>
 
 #include "delegation.h"
 #include "internal.h"
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 5edd1704f735..4c9f8bd866ab 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -23,6 +23,7 @@
 #define NFS4_MAX_LOOP_ON_RECOVER (10)
 
 #include <linux/seqlock.h>
+#include <linux/filelock.h>
 
 struct idmap;
 
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 16be6dae524f..779bfc37233c 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -21,6 +21,7 @@
 #include <linux/nfs_page.h>
 #include <linux/nfs_mount.h>
 #include <linux/export.h>
+#include <linux/filelock.h>
 
 #include "internal.h"
 #include "pnfs.h"
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 80c240e50952..1a80d548253a 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -25,6 +25,7 @@
 #include <linux/freezer.h>
 #include <linux/wait.h>
 #include <linux/iversion.h>
+#include <linux/filelock.h>
 
 #include <linux/uaccess.h>
 #include <linux/sched/mm.h>
diff --git a/fs/nfs_common/grace.c b/fs/nfs_common/grace.c
index 0a9b72685f98..1479583fbb62 100644
--- a/fs/nfs_common/grace.c
+++ b/fs/nfs_common/grace.c
@@ -9,6 +9,7 @@
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 
 static unsigned int grace_net_id;
 static DEFINE_SPINLOCK(grace_lock);
diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h
index 8c854ba3285b..bc139401927d 100644
--- a/fs/nfsd/netns.h
+++ b/fs/nfsd/netns.h
@@ -10,6 +10,7 @@
 
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>
+#include <linux/filelock.h>
 #include <linux/percpu_counter.h>
 #include <linux/siphash.h>
 
diff --git a/fs/ocfs2/locks.c b/fs/ocfs2/locks.c
index 73a3854b2afb..f37174e79fad 100644
--- a/fs/ocfs2/locks.c
+++ b/fs/ocfs2/locks.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/fcntl.h>
 
 #include <cluster/masklog.h>
diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
index 64e6ddcfe329..05d4414d0c33 100644
--- a/fs/ocfs2/stack_user.c
+++ b/fs/ocfs2/stack_user.c
@@ -9,6 +9,7 @@
 
 #include <linux/module.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/miscdevice.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
diff --git a/fs/open.c b/fs/open.c
index 82c1a28b3308..9b1c08298a07 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -33,6 +33,7 @@
 #include <linux/dnotify.h>
 #include <linux/compat.h>
 #include <linux/mnt_idmapping.h>
+#include <linux/filelock.h>
 
 #include "internal.h"
 
diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c
index 167fa43b24f9..4ecb91a9bbeb 100644
--- a/fs/orangefs/file.c
+++ b/fs/orangefs/file.c
@@ -14,6 +14,7 @@
 #include "orangefs-kernel.h"
 #include "orangefs-bufmap.h"
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/pagemap.h>
 
 static int flush_racache(struct inode *inode)
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index d7bc81fc0840..d2271431f344 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -28,6 +28,7 @@
 #include <linux/security.h>
 #include <linux/evm.h>
 #include <linux/fsnotify.h>
+#include <linux/filelock.h>
 
 #include "internal.h"
 
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index fc46d6fe080c..53e4919ef860 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -12,6 +12,7 @@
 #include <linux/file.h>
 #include <linux/seq_file.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 
 #include <linux/proc_fs.h>
 
diff --git a/fs/utimes.c b/fs/utimes.c
index 39f356017635..00499e4ba955 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -7,6 +7,7 @@
 #include <linux/uaccess.h>
 #include <linux/compat.h>
 #include <asm/unistd.h>
+#include <linux/filelock.h>
 
 static bool nsec_valid(long nsec)
 {
diff --git a/fs/xattr.c b/fs/xattr.c
index adab9a70b536..3fead374901b 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -9,6 +9,7 @@
   Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
  */
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/slab.h>
 #include <linux/file.h>
 #include <linux/xattr.h>
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index f9878021e7d0..e88f18f85e4b 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -34,6 +34,7 @@ typedef __u32			xfs_nlink_t;
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/file.h>
+#include <linux/filelock.h>
 #include <linux/swap.h>
 #include <linux/errno.h>
 #include <linux/sched/signal.h>