All of lore.kernel.org
 help / color / mirror / Atom feed
From: Peter Pan <panweiping3@gmail.com>
To: Dan Carpenter <error27@gmail.com>,
	Peter Pan <wppan@redflag-linux.com>,
	jack@suse.cz, hch@lst.de, viro@zeniv.linux.org.uk,
	npiggin@suse.de, jblunck@suse.de, linux-fsdevel@vger.kernel.org,
	linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: Re: [PATCH] ext2:delete misused ext2_free_blocks
Date: Thu, 01 Jul 2010 01:56:41 +0000	[thread overview]
Message-ID: <4C2BF5D9.8040100@gmail.com> (raw)
In-Reply-To: <20100630225754.GT19184@bicker>

On 07/01/2010 06:57 AM, Dan Carpenter wrote:
> On Wed, Jun 30, 2010 at 06:21:27PM +0800, Peter Pan wrote:
>    
>> if ext2_new_blocks returns error, no blocks need to be freed.
>>
>>      
> Hi Peter,
>
> Your patch isn't right.  The original code is OK as is.
>
> Are you seeing a kernel panic?  Perhaps we can help you fix it.
>    
Oh, I know that the original code is good now.
I didn't see a kernel panic, thank you for your guide.
> regards,
> dan carpenter
>
>    
>> Signed-off-by: Peter Pan<wppan@redflag-linux.com>
>> ---
>>   fs/ext2/inode.c |    4 ++--
>>   1 files changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
>> index 3675088..f858847 100644
>> --- a/fs/ext2/inode.c
>> +++ b/fs/ext2/inode.c
>> @@ -385,6 +385,8 @@ static int ext2_alloc_blocks(struct inode *inode,
>>   	ext2_fsblk_t current_block = 0;
>>   	int ret = 0;
>>
>> +	*err = -ENOSPC;
>> +
>>   	/*
>>   	 * Here we try to allocate the requested multiple blocks at once,
>>   	 * on a best-effort basis.
>> @@ -421,8 +423,6 @@ static int ext2_alloc_blocks(struct inode *inode,
>>   	*err = 0;
>>   	return ret;
>>   failed_out:
>> -	for (i = 0; i<index; i++)
>> -		ext2_free_blocks(inode, new_blocks[i], 1);
>>   	return ret;
>>   }
>>
>> -- 
>> 1.6.6
>>      
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
>
>    

Regards

-- 
Peter Pan
Red Flag Software Co.,Ltd


WARNING: multiple messages have this Message-ID (diff)
From: Peter Pan <panweiping3@gmail.com>
To: Dan Carpenter <error27@gmail.com>,
	Peter Pan <wppan@redflag-linux.com>,
	jack@suse.cz, hch@lst.de, viro@zeniv.linux.org.uk,
	npiggin@suse.de, jblunck@suse.de, linux-fsdevel@vger.kernel.org,
	linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: Re: [PATCH] ext2:delete misused ext2_free_blocks
Date: Thu, 01 Jul 2010 09:56:41 +0800	[thread overview]
Message-ID: <4C2BF5D9.8040100@gmail.com> (raw)
In-Reply-To: <20100630225754.GT19184@bicker>

On 07/01/2010 06:57 AM, Dan Carpenter wrote:
> On Wed, Jun 30, 2010 at 06:21:27PM +0800, Peter Pan wrote:
>    
>> if ext2_new_blocks returns error, no blocks need to be freed.
>>
>>      
> Hi Peter,
>
> Your patch isn't right.  The original code is OK as is.
>
> Are you seeing a kernel panic?  Perhaps we can help you fix it.
>    
Oh, I know that the original code is good now.
I didn't see a kernel panic, thank you for your guide.
> regards,
> dan carpenter
>
>    
>> Signed-off-by: Peter Pan<wppan@redflag-linux.com>
>> ---
>>   fs/ext2/inode.c |    4 ++--
>>   1 files changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
>> index 3675088..f858847 100644
>> --- a/fs/ext2/inode.c
>> +++ b/fs/ext2/inode.c
>> @@ -385,6 +385,8 @@ static int ext2_alloc_blocks(struct inode *inode,
>>   	ext2_fsblk_t current_block = 0;
>>   	int ret = 0;
>>
>> +	*err = -ENOSPC;
>> +
>>   	/*
>>   	 * Here we try to allocate the requested multiple blocks at once,
>>   	 * on a best-effort basis.
>> @@ -421,8 +423,6 @@ static int ext2_alloc_blocks(struct inode *inode,
>>   	*err = 0;
>>   	return ret;
>>   failed_out:
>> -	for (i = 0; i<index; i++)
>> -		ext2_free_blocks(inode, new_blocks[i], 1);
>>   	return ret;
>>   }
>>
>> -- 
>> 1.6.6
>>      
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
>
>    

Regards

-- 
Peter Pan
Red Flag Software Co.,Ltd


  parent reply	other threads:[~2010-07-01  1:56 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1277893287-25916-1-git-send-email-wppan@redflag-linux.com>
2010-06-30 22:57 ` [PATCH] ext2:delete misused ext2_free_blocks Dan Carpenter
2010-06-30 22:57   ` Dan Carpenter
2010-07-01  1:56   ` Peter Pan
2010-07-01  1:56   ` Peter Pan
2010-07-01  1:56   ` Peter Pan [this message]
2010-07-01  1:56     ` Peter Pan

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4C2BF5D9.8040100@gmail.com \
    --to=panweiping3@gmail.com \
    --cc=error27@gmail.com \
    --cc=hch@lst.de \
    --cc=jack@suse.cz \
    --cc=jblunck@suse.de \
    --cc=kernel-janitors@vger.kernel.org \
    --cc=linux-ext4@vger.kernel.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=npiggin@suse.de \
    --cc=viro@zeniv.linux.org.uk \
    --cc=wppan@redflag-linux.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.