I think I was a little bit too early with review :) Below I have some
comments.

Marcin Niestrój <[email protected]> writes:

> Sascha Hauer <[email protected]> writes:
>
>> In ramfs_truncate() "newchunks" denotes the number of chunks we
>> want to have after the call. We decrease that number while iterating
>> over the existing chunks and decrease it further with every newly
>> allocated chunk until "newchunks" is zero.
>> This is a bit hard to read. Instead we drop the decreasing while
>> iterating over existing chunks and increase "oldchunks" while allocating
>> until it reaches "newchunks".
>>
>> This is mainly done to make the next patch easier.
>>
>> Signed-off-by: Sascha Hauer <[email protected]>
>> ---
>>  fs/ramfs.c | 9 ++++-----
>>  1 file changed, 4 insertions(+), 5 deletions(-)
>>
>> diff --git a/fs/ramfs.c b/fs/ramfs.c
>> index 09dafe02ae..8ba8d77de9 100644
>> --- a/fs/ramfs.c
>> +++ b/fs/ramfs.c
>> @@ -384,19 +384,18 @@ static int ramfs_truncate(struct device_d *dev, FILE 
>> *f, ulong size)
>>                      if (!node->data)
>>                              return -ENOMEM;
>>                      data = node->data;
>> +                    newchunks = 1;

What is the reason of this instruction? What if 'size' == 16384 and we
do it on freshly opened file (with truncate(fd, 16384)? 'newchunk'
should be 2 in that case, or not?

Regards,
Marcin

>>              }
>>  
>> -            newchunks--;
>> -            while (data->next) {
>> -                    newchunks--;
>> +            while (data->next)
>>                      data = data->next;
>> -            }
>>  
>> -            while (newchunks--) {
>> +            while (newchunks > oldchunks) {
>>                      data->next = ramfs_get_chunk();
>>                      if (!data->next)
>>                              return -ENOMEM;
>>                      data = data->next;
>> +                    oldchunks++;
>>              }
>>      }
>>      node->size = size;
>
> Reviewed-by: Marcin Niestroj <[email protected]>

_______________________________________________
barebox mailing list
[email protected]
http://lists.infradead.org/mailman/listinfo/barebox

Reply via email to