[PATCH] devfs: Remove devfs from the partition code

This patch removes the devfs code from the fs/partitions/ directory.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 130 deletions

diff --git a/fs/partitions/devfs.c b/fs/partitions/devfs.c
deleted file mode 100644
index 3f0a780c9ce..00000000000
--- a/fs/partitions/devfs.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * This tries to keep block devices away from devfs as much as possible.
- */
-#include <linux/fs.h>
-#include <linux/devfs_fs_kernel.h>
-#include <linux/vmalloc.h>
-#include <linux/genhd.h>
-#include <linux/bitops.h>
-#include <linux/mutex.h>
-
-
-struct unique_numspace {
-	u32		  num_free;          /*  Num free in bits       */
-	u32		  length;            /*  Array length in bytes  */
-	unsigned long	  *bits;
-	struct semaphore  mutex;
-};
-
-static DEFINE_MUTEX(numspace_mutex);
-
-static int expand_numspace(struct unique_numspace *s)
-{
-	u32 length;
-	void *bits;
-
-	if (s->length < 16)
-		length = 16;
-	else
-		length = s->length << 1;
-
-	bits = vmalloc(length);
-	if (!bits)
-		return -ENOMEM;
-	if (s->bits) {
-		memcpy(bits, s->bits, s->length);
-		vfree(s->bits);
-	}
-		
-	s->num_free = (length - s->length) << 3;
-	s->bits = bits;
-	memset(bits + s->length, 0, length - s->length);
-	s->length = length;
-
-	return 0;
-}
-
-static int alloc_unique_number(struct unique_numspace *s)
-{
-	int rval = 0;
-
-	mutex_lock(&numspace_mutex);
-	if (s->num_free < 1)
-		rval = expand_numspace(s);
-	if (!rval) {
-		rval = find_first_zero_bit(s->bits, s->length << 3);
-		--s->num_free;
-		__set_bit(rval, s->bits);
-	}
-	mutex_unlock(&numspace_mutex);
-
-	return rval;
-}
-
-static void dealloc_unique_number(struct unique_numspace *s, int number)
-{
-	int old_val;
-
-	if (number >= 0) {
-		mutex_lock(&numspace_mutex);
-		old_val = __test_and_clear_bit(number, s->bits);
-		if (old_val)
-			++s->num_free;
-		mutex_unlock(&numspace_mutex);
-	}
-}
-
-static struct unique_numspace disc_numspace;
-static struct unique_numspace cdrom_numspace;
-
-void devfs_add_partitioned(struct gendisk *disk)
-{
-	char dirname[64], symlink[16];
-
-	devfs_mk_dir(disk->devfs_name);
-	devfs_mk_bdev(MKDEV(disk->major, disk->first_minor),
-			S_IFBLK|S_IRUSR|S_IWUSR,
-			"%s/disc", disk->devfs_name);
-
-	disk->number = alloc_unique_number(&disc_numspace);
-
-	sprintf(symlink, "discs/disc%d", disk->number);
-	sprintf(dirname, "../%s", disk->devfs_name);
-	devfs_mk_symlink(symlink, dirname);
-
-}
-
-void devfs_add_disk(struct gendisk *disk)
-{
-	devfs_mk_bdev(MKDEV(disk->major, disk->first_minor),
-			(disk->flags & GENHD_FL_CD) ?
-				S_IFBLK|S_IRUGO|S_IWUGO :
-				S_IFBLK|S_IRUSR|S_IWUSR,
-			"%s", disk->devfs_name);
-
-	if (disk->flags & GENHD_FL_CD) {
-		char dirname[64], symlink[16];
-
-		disk->number = alloc_unique_number(&cdrom_numspace);
-
-		sprintf(symlink, "cdroms/cdrom%d", disk->number);
-		sprintf(dirname, "../%s", disk->devfs_name);
-		devfs_mk_symlink(symlink, dirname);
-	}
-}
-
-void devfs_remove_disk(struct gendisk *disk)
-{
-	if (disk->minors != 1) {
-		devfs_remove("discs/disc%d", disk->number);
-		dealloc_unique_number(&disc_numspace, disk->number);
-		devfs_remove("%s/disc", disk->devfs_name);
-	}
-	if (disk->flags & GENHD_FL_CD) {
-		devfs_remove("cdroms/cdrom%d", disk->number);
-		dealloc_unique_number(&cdrom_numspace, disk->number);
-	}
-	devfs_remove(disk->devfs_name);
-}
-
-