Unverified Commit 3f320e5c authored by Thorsten Blum's avatar Thorsten Blum Committed by Christian Brauner
Browse files

namespace: Replace simple_strtoul with kstrtoul to parse boot params 



Replace simple_strtoul() with the recommended kstrtoul() for parsing the
'mhash_entries=' and 'mphash_entries=' boot parameters.

Check the return value of kstrtoul() and reject invalid values. This
adds error handling while preserving behavior for existing values, and
removes use of the deprecated simple_strtoul() helper.

Signed-off-by: default avatarThorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20251214153141.218953-2-thorsten.blum@linux.dev


Reviewed-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent b29a0a37

fs/namespace.c

+2 −8
Original line number Diff line number Diff line
@@ -49,20 +49,14 @@ static unsigned int mp_hash_shift __ro_after_init; 
static __initdata unsigned long mhash_entries;

static int __init set_mhash_entries(char *str)

{

	if (!str)

		return 0;

	mhash_entries = simple_strtoul(str, &str, 0);

	return 1;

	return kstrtoul(str, 0, &mhash_entries) == 0;

}

__setup("mhash_entries=", set_mhash_entries);



static __initdata unsigned long mphash_entries;

static int __init set_mphash_entries(char *str)

{

	if (!str)

		return 0;

	mphash_entries = simple_strtoul(str, &str, 0);

	return 1;

	return kstrtoul(str, 0, &mphash_entries) == 0;

}

__setup("mphash_entries=", set_mphash_entries);