Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull misc vfs updates from Al Viro:
 "Assorted bits and pieces from various people. No common topic in this
  pile, sorry"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs/affs: add rename exchange
  fs/affs: add rename2 to prepare multiple methods
  Make stat/lstat/fstatat pass AT_NO_AUTOMOUNT to vfs_statx()
  fs: don't set *REFERENCED on single use objects
  fs: compat: Remove warning from COMPATIBLE_IOCTL
  remove pointless extern of atime_need_update_rcu()
  fs: completely ignore unknown open flags
  fs: add a VALID_OPEN_FLAGS
  fs: remove _submit_bh()
  fs: constify tree_descr arrays passed to simple_fill_super()
  fs: drop duplicate header percpu-rwsem.h
  fs/affs: bugfix: Write files greater than page size on OFS
  fs/affs: bugfix: enable writes on OFS disks
  fs/affs: remove node generation check
  fs/affs: import amigaffs.h
  fs/affs: bugfix: make symbolic links work again

4 files changed, 14 insertions, 152 deletions

diff --git a/include/linux/amigaffs.h b/include/linux/amigaffs.h
deleted file mode 100644
index 43b41c06aa37..000000000000
--- a/include/linux/amigaffs.h
+++ /dev/null
@@ -1,144 +0,0 @@
-#ifndef AMIGAFFS_H
-#define AMIGAFFS_H
-
-#include <linux/types.h>
-#include <asm/byteorder.h>
-
-#define FS_OFS		0x444F5300
-#define FS_FFS		0x444F5301
-#define FS_INTLOFS	0x444F5302
-#define FS_INTLFFS	0x444F5303
-#define FS_DCOFS	0x444F5304
-#define FS_DCFFS	0x444F5305
-#define MUFS_FS		0x6d754653   /* 'muFS' */
-#define MUFS_OFS	0x6d754600   /* 'muF\0' */
-#define MUFS_FFS	0x6d754601   /* 'muF\1' */
-#define MUFS_INTLOFS	0x6d754602   /* 'muF\2' */
-#define MUFS_INTLFFS	0x6d754603   /* 'muF\3' */
-#define MUFS_DCOFS	0x6d754604   /* 'muF\4' */
-#define MUFS_DCFFS	0x6d754605   /* 'muF\5' */
-
-#define T_SHORT		2
-#define T_LIST		16
-#define T_DATA		8
-
-#define ST_LINKFILE	-4
-#define ST_FILE		-3
-#define ST_ROOT		1
-#define ST_USERDIR	2
-#define ST_SOFTLINK	3
-#define ST_LINKDIR	4
-
-#define AFFS_ROOT_BMAPS		25
-
-struct affs_date {
-	__be32 days;
-	__be32 mins;
-	__be32 ticks;
-};
-
-struct affs_short_date {
-	__be16 days;
-	__be16 mins;
-	__be16 ticks;
-};
-
-struct affs_root_head {
-	__be32 ptype;
-	__be32 spare1;
-	__be32 spare2;
-	__be32 hash_size;
-	__be32 spare3;
-	__be32 checksum;
-	__be32 hashtable[1];
-};
-
-struct affs_root_tail {
-	__be32 bm_flag;
-	__be32 bm_blk[AFFS_ROOT_BMAPS];
-	__be32 bm_ext;
-	struct affs_date root_change;
-	u8 disk_name[32];
-	__be32 spare1;
-	__be32 spare2;
-	struct affs_date disk_change;
-	struct affs_date disk_create;
-	__be32 spare3;
-	__be32 spare4;
-	__be32 dcache;
-	__be32 stype;
-};
-
-struct affs_head {
-	__be32 ptype;
-	__be32 key;
-	__be32 block_count;
-	__be32 spare1;
-	__be32 first_data;
-	__be32 checksum;
-	__be32 table[1];
-};
-
-struct affs_tail {
-	__be32 spare1;
-	__be16 uid;
-	__be16 gid;
-	__be32 protect;
-	__be32 size;
-	u8 comment[92];
-	struct affs_date change;
-	u8 name[32];
-	__be32 spare2;
-	__be32 original;
-	__be32 link_chain;
-	__be32 spare[5];
-	__be32 hash_chain;
-	__be32 parent;
-	__be32 extension;
-	__be32 stype;
-};
-
-struct slink_front
-{
-	__be32 ptype;
-	__be32 key;
-	__be32 spare1[3];
-	__be32 checksum;
-	u8 symname[1];	/* depends on block size */
-};
-
-struct affs_data_head
-{
-	__be32 ptype;
-	__be32 key;
-	__be32 sequence;
-	__be32 size;
-	__be32 next;
-	__be32 checksum;
-	u8 data[1];	/* depends on block size */
-};
-
-/* Permission bits */
-
-#define FIBF_OTR_READ		0x8000
-#define FIBF_OTR_WRITE		0x4000
-#define FIBF_OTR_EXECUTE	0x2000
-#define FIBF_OTR_DELETE		0x1000
-#define FIBF_GRP_READ		0x0800
-#define FIBF_GRP_WRITE		0x0400
-#define FIBF_GRP_EXECUTE	0x0200
-#define FIBF_GRP_DELETE		0x0100
-
-#define FIBF_HIDDEN		0x0080
-#define FIBF_SCRIPT		0x0040
-#define FIBF_PURE		0x0020		/* no use under linux */
-#define FIBF_ARCHIVED		0x0010		/* never set, always cleared on write */
-#define FIBF_NOREAD		0x0008		/* 0 means allowed */
-#define FIBF_NOWRITE		0x0004		/* 0 means allowed */
-#define FIBF_NOEXECUTE		0x0002		/* 0 means allowed, ignored under linux */
-#define FIBF_NODELETE		0x0001		/* 0 means allowed */
-
-#define FIBF_OWNER		0x000F		/* Bits pertaining to owner */
-#define FIBF_MASK		0xEE0E		/* Bits modified by Linux */
-
-#endif
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 79591c3660cc..bd029e52ef5e 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -196,8 +196,6 @@ void ll_rw_block(int, int, int, struct buffer_head * bh[]);
 int sync_dirty_buffer(struct buffer_head *bh);
 int __sync_dirty_buffer(struct buffer_head *bh, int op_flags);
 void write_dirty_buffer(struct buffer_head *bh, int op_flags);
-int _submit_bh(int op, int op_flags, struct buffer_head *bh,
-	       unsigned long bio_flags);
 int submit_bh(int, int, struct buffer_head *);
 void write_boundary_block(struct block_device *bdev,
 			sector_t bblock, unsigned blocksize);
diff --git a/include/linux/fcntl.h b/include/linux/fcntl.h
index 76ce329e656d..1b48d9c9a561 100644
--- a/include/linux/fcntl.h
+++ b/include/linux/fcntl.h
@@ -3,6 +3,12 @@
 
 #include <uapi/linux/fcntl.h>
 
+/* list of all valid flags for the open/openat flags argument: */
+#define VALID_OPEN_FLAGS \
+	(O_RDONLY | O_WRONLY | O_RDWR | O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC | \
+	 O_APPEND | O_NDELAY | O_NONBLOCK | O_NDELAY | __O_SYNC | O_DSYNC | \
+	 FASYNC	| O_DIRECT | O_LARGEFILE | O_DIRECTORY | O_NOFOLLOW | \
+	 O_NOATIME | O_CLOEXEC | O_PATH | __O_TMPFILE)
 
 #ifndef force_o_largefile
 #define force_o_largefile() (BITS_PER_LONG != 32)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 249dad4e8d26..26488b419965 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -29,7 +29,6 @@
 #include <linux/lockdep.h>
 #include <linux/percpu-rwsem.h>
 #include <linux/workqueue.h>
-#include <linux/percpu-rwsem.h>
 #include <linux/delayed_call.h>
 
 #include <asm/byteorder.h>
@@ -2925,17 +2924,19 @@ extern int vfs_statx_fd(unsigned int, struct kstat *, u32, unsigned int);
 
 static inline int vfs_stat(const char __user *filename, struct kstat *stat)
 {
-	return vfs_statx(AT_FDCWD, filename, 0, stat, STATX_BASIC_STATS);
+	return vfs_statx(AT_FDCWD, filename, AT_NO_AUTOMOUNT,
+			 stat, STATX_BASIC_STATS);
 }
 static inline int vfs_lstat(const char __user *name, struct kstat *stat)
 {
-	return vfs_statx(AT_FDCWD, name, AT_SYMLINK_NOFOLLOW,
+	return vfs_statx(AT_FDCWD, name, AT_SYMLINK_NOFOLLOW | AT_NO_AUTOMOUNT,
 			 stat, STATX_BASIC_STATS);
 }
 static inline int vfs_fstatat(int dfd, const char __user *filename,
 			      struct kstat *stat, int flags)
 {
-	return vfs_statx(dfd, filename, flags, stat, STATX_BASIC_STATS);
+	return vfs_statx(dfd, filename, flags | AT_NO_AUTOMOUNT,
+			 stat, STATX_BASIC_STATS);
 }
 static inline int vfs_fstat(int fd, struct kstat *stat)
 {
@@ -3000,9 +3001,10 @@ extern const struct file_operations simple_dir_operations;
 extern const struct inode_operations simple_dir_inode_operations;
 extern void make_empty_dir_inode(struct inode *inode);
 extern bool is_empty_dir_inode(struct inode *inode);
-struct tree_descr { char *name; const struct file_operations *ops; int mode; };
+struct tree_descr { const char *name; const struct file_operations *ops; int mode; };
 struct dentry *d_alloc_name(struct dentry *, const char *);
-extern int simple_fill_super(struct super_block *, unsigned long, struct tree_descr *);
+extern int simple_fill_super(struct super_block *, unsigned long,
+			     const struct tree_descr *);
 extern int simple_pin_fs(struct file_system_type *, struct vfsmount **mount, int *count);
 extern void simple_release_fs(struct vfsmount **mount, int *count);