Re: [RFC PATCH] Introduce filesystem type tracking

From: Jan Engelhardt
Date: Wed May 21 2008 - 05:42:50 EST



On Tuesday 2008-05-20 23:08, Tom Spink wrote:
>
>I *think* I may have got it right, but please, let me know what you
>think! The only thing that I think may be wrong with this patch is
>the
>spin_lock/unlock at the end of sget, where the superblock is
>list_add_tailed into the super_blocks list. I believe this opens the
>possibility for the same superblock being list_add_tailed twice... can
>anyone else see this code-path, and is it a problem?
>
>+ mutex_lock(&type->fs_supers_lock);
>+ if (list_empty(&type->fs_supers) && type->init) {
>+ err = type->init();
>+ if (err) {

The filesystem may want to have the superblock passed.
Well, will see once a filesystem has the need for it.

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