[PATCH] beginning of methods conversion

To keep the size of changesets sane we split the switch by drivers;
to keep the damn thing bisectable we do the following:
	1) rename the affected methods, add ones with correct
prototypes, make (few) callers handle both.  That's this changeset.
	2) for each driver convert to new methods.  *ALL* drivers
are converted in this series.
	3) kill the old (renamed) methods.

Note that it _is_ a flagday; all in-tree drivers are converted and by the
end of this series no trace of old methods remain.  The only reason why
we do that this way is to keep the damn thing bisectable and allow per-driver
debugging if anything goes wrong.

New methods:
	open(bdev, mode)
	release(disk, mode)
	ioctl(bdev, mode, cmd, arg)		/* Called without BKL */
	compat_ioctl(bdev, mode, cmd, arg)
	locked_ioctl(bdev, mode, cmd, arg)	/* Called with BKL, legacy */

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

2 files changed, 11 insertions, 5 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 2bad616b9949..b573186ff1a1 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1061,11 +1061,16 @@ struct file;
 struct inode;
 
 struct block_device_operations {
-        int (*open) (struct inode *, struct file *);
-        int (*release) (struct inode *, struct file *);
-        int (*ioctl) (struct inode *, struct file *, unsigned, unsigned long);
-        long (*unlocked_ioctl) (struct file *, unsigned, unsigned long);
-        long (*compat_ioctl) (struct file *, unsigned, unsigned long);
+        int (*__open) (struct inode *, struct file *);
+        int (*__release) (struct inode *, struct file *);
+        int (*__ioctl) (struct inode *, struct file *, unsigned, unsigned long);
+        long (*__unlocked_ioctl) (struct file *, unsigned, unsigned long);
+        long (*__compat_ioctl) (struct file *, unsigned, unsigned long);
+        int (*open) (struct block_device *, fmode_t);
+        int (*release) (struct gendisk *, fmode_t);
+        int (*locked_ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
+        int (*ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
+        int (*compat_ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
         int (*direct_access) (struct block_device *, sector_t,
                                                 void **, unsigned long *);
         int (*media_changed) (struct gendisk *);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 58bbf689fef7..b5894604ba5e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -79,6 +79,7 @@ extern int dir_notify_enable;
 #define FMODE_NDELAY    ((__force fmode_t)32)
 #define FMODE_EXCL      ((__force fmode_t)64)
 #define FMODE_WRITE_IOCTL       ((__force fmode_t)128)
+#define FMODE_NDELAY_NOW        ((__force fmode_t)256)
 
 #define RW_MASK         1
 #define RWA_MASK        2