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logfs get_sb massage, part 1

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move allocation of logfs_super to logfs_get_sb, pass it to
logfs_get_sb_...().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2010-07-26 11:25:05 +04:00
commit 71a1c0125f
4 changed files with 39 additions and 21 deletions
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12
fs/logfs/dev_bdev.c
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@ -9,6 +9,7 @@
#include <linux/bio.h>
#include <linux/blkdev.h>
#include <linux/buffer_head.h>
#include <linux/slab.h>
#include <linux/gfp.h>
#define PAGE_OFS(ofs) ((ofs) & (PAGE_SIZE-1))
@ -320,20 +321,23 @@ static const struct logfs_device_ops bd_devops = {
.put_device = bdev_put_device,
};
int logfs_get_sb_bdev(struct file_system_type *type, int flags,
int logfs_get_sb_bdev(struct logfs_super *p,
struct file_system_type *type, int flags,
const char *devname, struct vfsmount *mnt)
{
struct block_device *bdev;
bdev = open_bdev_exclusive(devname, FMODE_READ|FMODE_WRITE, type);
if (IS_ERR(bdev))
if (IS_ERR(bdev)) {
kfree(p);
return PTR_ERR(bdev);
}
if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) {
int mtdnr = MINOR(bdev->bd_dev);
close_bdev_exclusive(bdev, FMODE_READ|FMODE_WRITE);
return logfs_get_sb_mtd(type, flags, mtdnr, mnt);
return logfs_get_sb_mtd(p, type, flags, mtdnr, mnt);
}
return logfs_get_sb_device(type, flags, NULL, bdev, &bd_devops, mnt);
return logfs_get_sb_device(p, type, flags, NULL, bdev, &bd_devops, mnt);
}