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authorJosh Boyer <jwboyer@redhat.com>2013-02-12 13:07:22 -0800
committerTony Luck <tony.luck@intel.com>2013-02-12 13:07:22 -0800
commitfb0af3f2b1b613e5ea75426d454c7e5b1d1eef49 (patch)
tree2ef5fd07b1684073d1b0d2fea0466e38466f92a8 /fs/pstore
parenta93bc0c6e07ed9bac44700280e65e2945d864fd4 (diff)
downloadop-kernel-dev-fb0af3f2b1b613e5ea75426d454c7e5b1d1eef49.zip
op-kernel-dev-fb0af3f2b1b613e5ea75426d454c7e5b1d1eef49.tar.gz
pstore: Create a convenient mount point for pstore
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>
Diffstat (limited to 'fs/pstore')
-rw-r--r--fs/pstore/inode.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index 67de74c..e4bcb2c 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -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)
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