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pstore: Create a convenient mount point for pstore

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Using /dev/pstore as a mount point for the pstore filesystem is slightly
awkward.  We don't normally mount filesystems in /dev/ and the /dev/pstore
file isn't created automatically by anything.  While this method will
still work, we can create a persistent mount point in sysfs.  This will
put pstore on par with things like cgroups and efivarfs.

Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Josh Boyer
2013-02-12 13:07:22 -08:00
committed by Tony Luck
parent a93bc0c6e0
commit fb0af3f2b1
2 changed files with 22 additions and 6 deletions
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18
fs/pstore/inode.c
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@@ -418,9 +418,25 @@ static struct file_system_type pstore_fs_type = {
.kill_sb = pstore_kill_sb,
};
static struct kobject *pstore_kobj;
static int __init init_pstore_fs(void)
{
return register_filesystem(&pstore_fs_type);
int err = 0;
/* Create a convenient mount point for people to access pstore */
pstore_kobj = kobject_create_and_add("pstore", fs_kobj);
if (!pstore_kobj) {
err = -ENOMEM;
goto out;
}
err = register_filesystem(&pstore_fs_type);
if (err < 0)
kobject_put(pstore_kobj);
out:
return err;
}
module_init(init_pstore_fs)