Re: [PATCH] struct super_block cleanup - msdos/vfat

OGAWA Hirofumi (hirofumi@mail.parknet.co.jp)
Fri, 15 Mar 2002 00:29:34 +0900


Brian Gerst <bgerst@didntduck.org> writes:

> OGAWA Hirofumi wrote:
> > OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> writes:
> >
> >>Hi,
> >>
> >>Brian Gerst <bgerst@didntduck.org> writes:
> >>
> >>
> >>>diff -urN linux-2.5.7-pre1/fs/msdos/namei.c linux/fs/msdos/namei.c
> >>>--- linux-2.5.7-pre1/fs/msdos/namei.c Thu Mar 7 21:18:32 2002
> >>>+++ linux/fs/msdos/namei.c Wed Mar 13 08:20:12 2002
> >>>@@ -603,17 +603,14 @@
> >>> int msdos_fill_super(struct super_block *sb,void *data, int silent)
> >>> {
> >>>- struct super_block *res;
> >>>+ int res;
> >>> - MSDOS_SB(sb)->options.isvfat = 0;
> >>>- res = fat_read_super(sb, data, silent, &msdos_dir_inode_operations);
> >>>- if (IS_ERR(res))
> >>>- return PTR_ERR(res);
> >>>- if (res == NULL) {
> >>>+ res = fat_fill_super(sb, data, silent, &msdos_dir_inode_operations, 0);
> >>>+ if (res) {
> >>> if (!silent)
> >>> printk(KERN_INFO "VFS: Can't find a valid"
> >>> " MSDOS filesystem on dev %s.\n", sb->s_id);
> >>
> >>If the error is I/O error, I think we shouldn't output this message.
> > ^^^^^^^^^^^^^^^^^^^^^^^^^^
> > If the error is except -EINVAL,
> > Sorry.
> >
> >>What do you think about this?
> >
>
> Why not? The statement is true, and other filesystems do complain
> when there is an I/O error.

Umm, almost all filesystems doesn't output this message when the I/O error
occurs, AFAIK.

I think that this message indicate that a device isn't a FAT
filesystem. And, of course, if error is the I/O error,
fat_full_super() can't detect whether it is FAT filesystem or not.

-- 
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
-
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