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fs: Replace simple_strtoul with kstrtoul in set_ihash_entries

Replace simple_strtoul() with the recommended kstrtoul() for parsing the
'ihash_entries=' boot parameter.

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

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20251218112144.225301-2-thorsten.blum@linux.dev
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>

authored by

Thorsten Blum and committed by
Christian Brauner 63ad216f b68f91ef

+1 -4
+1 -4
fs/inode.c
··· 2531 2531 static __initdata unsigned long ihash_entries; 2532 2532 static int __init set_ihash_entries(char *str) 2533 2533 { 2534 - if (!str) 2535 - return 0; 2536 - ihash_entries = simple_strtoul(str, &str, 0); 2537 - return 1; 2534 + return kstrtoul(str, 0, &ihash_entries) == 0; 2538 2535 } 2539 2536 __setup("ihash_entries=", set_ihash_entries); 2540 2537