logfs get_sb, part 3
take logfs_get_sb_device() calls to logfs_get_sb() itself
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/logfs/dev_bdev.c b/fs/logfs/dev_bdev.c
index a322fec..223b673 100644
--- a/fs/logfs/dev_bdev.c
+++ b/fs/logfs/dev_bdev.c
@@ -9,7 +9,6 @@
#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))
@@ -321,27 +320,23 @@
.put_device = bdev_put_device,
};
-int logfs_get_sb_bdev(struct logfs_super *p,
- struct file_system_type *type, int flags,
- const char *devname, struct vfsmount *mnt)
+int logfs_get_sb_bdev(struct logfs_super *p, struct file_system_type *type,
+ const char *devname)
{
struct block_device *bdev;
bdev = open_bdev_exclusive(devname, FMODE_READ|FMODE_WRITE, type);
- if (IS_ERR(bdev)) {
- kfree(p);
+ if (IS_ERR(bdev))
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(p, type, flags, mtdnr, mnt);
+ return logfs_get_sb_mtd(p, mtdnr);
}
p->s_bdev = bdev;
p->s_mtd = NULL;
p->s_devops = &bd_devops;
-
- return logfs_get_sb_device(p, type, flags, mnt);
+ return 0;
}
diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c
index 7b22d57..9e3dbe3 100644
--- a/fs/logfs/dev_mtd.c
+++ b/fs/logfs/dev_mtd.c
@@ -265,18 +265,14 @@
.put_device = mtd_put_device,
};
-int logfs_get_sb_mtd(struct logfs_super *s,
- struct file_system_type *type, int flags,
- int mtdnr, struct vfsmount *mnt)
+int logfs_get_sb_mtd(struct logfs_super *s, int mtdnr)
{
struct mtd_info *mtd = get_mtd_device(NULL, mtdnr);
- if (IS_ERR(mtd)) {
- kfree(s);
+ if (IS_ERR(mtd))
return PTR_ERR(mtd);
- }
s->s_bdev = NULL;
s->s_mtd = mtd;
s->s_devops = &mtd_devops;
- return logfs_get_sb_device(s, type, flags, mnt);
+ return 0;
}
diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h
index bdd56fa..5d2e66b 100644
--- a/fs/logfs/logfs.h
+++ b/fs/logfs/logfs.h
@@ -472,29 +472,23 @@
/* dev_bdev.c */
#ifdef CONFIG_BLOCK
int logfs_get_sb_bdev(struct logfs_super *s,
- struct file_system_type *type, int flags,
- const char *devname, struct vfsmount *mnt);
+ struct file_system_type *type,
+ const char *devname);
#else
static inline int logfs_get_sb_bdev(struct logfs_super *s,
- struct file_system_type *type, int flags,
- const char *devname, struct vfsmount *mnt)
+ struct file_system_type *type,
+ const char *devname)
{
- kfree(s);
return -ENODEV;
}
#endif
/* dev_mtd.c */
#ifdef CONFIG_MTD
-int logfs_get_sb_mtd(struct logfs_super *s,
- struct file_system_type *type, int flags,
- int mtdnr, struct vfsmount *mnt);
+int logfs_get_sb_mtd(struct logfs_super *s, int mtdnr)
#else
-static inline int logfs_get_sb_mtd(struct logfs_super *s,
- struct file_system_type *type, int flags,
- int mtdnr, struct vfsmount *mnt)
+static inline int logfs_get_sb_mtd(struct logfs_super *s, int mtdnr)
{
- kfree(s);
return -ENODEV;
}
#endif
diff --git a/fs/logfs/super.c b/fs/logfs/super.c
index c80837e..f57a150 100644
--- a/fs/logfs/super.c
+++ b/fs/logfs/super.c
@@ -596,26 +596,31 @@
{
ulong mtdnr;
struct logfs_super *super;
+ int err;
super = kzalloc(sizeof(*super), GFP_KERNEL);
if (!super)
return -ENOMEM;
if (!devname)
- return logfs_get_sb_bdev(super, type, flags, devname, mnt);
- if (strncmp(devname, "mtd", 3))
- return logfs_get_sb_bdev(super, type, flags, devname, mnt);
-
- {
+ err = logfs_get_sb_bdev(super, type, devname);
+ else if (strncmp(devname, "mtd", 3))
+ err = logfs_get_sb_bdev(super, type, devname);
+ else {
char *garbage;
mtdnr = simple_strtoul(devname+3, &garbage, 0);
- if (*garbage) {
- kfree(super);
- return -EINVAL;
- }
+ if (*garbage)
+ err = -EINVAL;
+ else
+ err = logfs_get_sb_mtd(super, mtdnr);
}
- return logfs_get_sb_mtd(super, type, flags, mtdnr, mnt);
+ if (err) {
+ kfree(super);
+ return err;
+ }
+
+ return logfs_get_sb_device(super, type, flags, mnt);
}
static struct file_system_type logfs_fs_type = {