Re: [PATCH] : Convert simple_strtoul to strict_strtoul in fs/inode.c
From: Manish Katiyar
Date: Mon Mar 30 2009 - 22:43:30 EST
On Tue, Mar 31, 2009 at 5:05 AM, Andrew Morton
<akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Mon, 23 Mar 2009 09:02:04 +0530
> Manish Katiyar <mkatiyar@xxxxxxxxx> wrote:
>
>> Hi Andrew,
>>
>> Below patch converts simple_strtoul to strict_strtoul in fs/inode.c
>>
>> Signed-off-by: Manish Katiyar <mkatiyar@xxxxxxxxx>
>> ---
>> fs/inode.c | 8 +++++++-
>> 1 files changed, 7 insertions(+), 1 deletions(-)
>>
>> diff --git a/fs/inode.c b/fs/inode.c
>> index e0dad15..ef4a9b1 100644
>> --- a/fs/inode.c
>> +++ b/fs/inode.c
>> @@ -1447,9 +1447,15 @@ EXPORT_SYMBOL(inode_double_unlock);
>> static __initdata unsigned long ihash_entries;
>> static int __init set_ihash_entries(char *str)
>> {
>> + int ret;
>> +
>> if (!str)
>> return 0;
>> - ihash_entries = simple_strtoul(str, &str, 0);
>> +
>> + ret = strict_strtoul(str, 0, &ihash_entries);
>> + if (ret < 0 || ihash_entries == 0)
>> + return 0;
>> +
>> return 1;
>> }
>> __setup("ihash_entries=", set_ihash_entries);
>
> Again, there is no reason given for making the change.
Hi Andrew,
It showed up during cleanup of this file via checkpatch.pl.
>
> Bear in mind that this is not a backward-compatible change! If someone
> (stupidly) has
>
> ihash_entries=42foo
>
> in their grub.conf then your change would break their kernels.
>
> it's not a serious problem and we can probably make this change, but
> trivial@xxxxxxxxxx is not a suitable list for discussing and
> promulgating the change.
I have cced lkml.
Thanks -
Manish
>
>
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