Re: [PATCH] Fix a bad bug in read_cache_page_async()

2007-05-09 Thread David Howells
Glauber de Oliveira Costa <[EMAIL PROTECTED]> wrote:

> any reason for not simply returning page here?

Not particularly.

David
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: [PATCH] Fix a bad bug in read_cache_page_async()

2007-05-09 Thread Nick Piggin
On Wed, May 09, 2007 at 01:02:01PM +0100, David Howells wrote:
> Fix a bad bug in read_cache_page_async() introduced in commit:
> 
>   6fe6900e1e5b6fa9e5c59aa5061f244fe3f467e2
> 
> This adds:
> 
>   mark_page_accessed(page)
> 
> into the error handling path in read_cache_page_async().  In such a case,
> 'page' holds the error code.

Obvious thinko. Thanks, ack.

> 
> Signed-off-by: David Howells <[EMAIL PROTECTED]>
> ---
> 
>  mm/filemap.c |6 --
>  1 files changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/mm/filemap.c b/mm/filemap.c
> index 9e56fd1..10d4fcf 100644
> --- a/mm/filemap.c
> +++ b/mm/filemap.c
> @@ -1784,7 +1784,7 @@ struct page *read_cache_page_async(struct address_space 
> *mapping,
>  retry:
>   page = __read_cache_page(mapping, index, filler, data);
>   if (IS_ERR(page))
> - goto out;
> + goto error;
>   mark_page_accessed(page);
>   if (PageUptodate(page))
>   goto out;
> @@ -1803,9 +1803,11 @@ retry:
>   if (err < 0) {
>   page_cache_release(page);
>   page = ERR_PTR(err);
> + goto error;
>   }
> - out:
> +out:
>   mark_page_accessed(page);
> +error:
>   return page;
>  }
>  EXPORT_SYMBOL(read_cache_page_async);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: [PATCH] Fix a bad bug in read_cache_page_async()

2007-05-09 Thread Glauber de Oliveira Costa

page = __read_cache_page(mapping, index, filler, data);
if (IS_ERR(page))
-   goto out;
+   goto error;

any reason for not simply returning page here?



page = ERR_PTR(err);
+   goto error;

same


--
Glauber de Oliveira Costa.
"Free as in Freedom"

"The less confident you are, the more serious you have to act."
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: [PATCH] Fix a bad bug in read_cache_page_async()

2007-05-09 Thread Glauber de Oliveira Costa

page = __read_cache_page(mapping, index, filler, data);
if (IS_ERR(page))
-   goto out;
+   goto error;

any reason for not simply returning page here?



page = ERR_PTR(err);
+   goto error;

same


--
Glauber de Oliveira Costa.
Free as in Freedom

The less confident you are, the more serious you have to act.
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: [PATCH] Fix a bad bug in read_cache_page_async()

2007-05-09 Thread Nick Piggin
On Wed, May 09, 2007 at 01:02:01PM +0100, David Howells wrote:
 Fix a bad bug in read_cache_page_async() introduced in commit:
 
   6fe6900e1e5b6fa9e5c59aa5061f244fe3f467e2
 
 This adds:
 
   mark_page_accessed(page)
 
 into the error handling path in read_cache_page_async().  In such a case,
 'page' holds the error code.

Obvious thinko. Thanks, ack.

 
 Signed-off-by: David Howells [EMAIL PROTECTED]
 ---
 
  mm/filemap.c |6 --
  1 files changed, 4 insertions(+), 2 deletions(-)
 
 diff --git a/mm/filemap.c b/mm/filemap.c
 index 9e56fd1..10d4fcf 100644
 --- a/mm/filemap.c
 +++ b/mm/filemap.c
 @@ -1784,7 +1784,7 @@ struct page *read_cache_page_async(struct address_space 
 *mapping,
  retry:
   page = __read_cache_page(mapping, index, filler, data);
   if (IS_ERR(page))
 - goto out;
 + goto error;
   mark_page_accessed(page);
   if (PageUptodate(page))
   goto out;
 @@ -1803,9 +1803,11 @@ retry:
   if (err  0) {
   page_cache_release(page);
   page = ERR_PTR(err);
 + goto error;
   }
 - out:
 +out:
   mark_page_accessed(page);
 +error:
   return page;
  }
  EXPORT_SYMBOL(read_cache_page_async);
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: [PATCH] Fix a bad bug in read_cache_page_async()

2007-05-09 Thread David Howells
Glauber de Oliveira Costa [EMAIL PROTECTED] wrote:

 any reason for not simply returning page here?

Not particularly.

David
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/