diff mbox series

[v2,08/18] xfs: Factor out xfs_attr_leaf_addname helper

Message ID 20190809213726.32336-9-allison.henderson@oracle.com (mailing list archive)
State Superseded
Headers show
Series Delayed Attributes | expand

Commit Message

Allison Henderson Aug. 9, 2019, 9:37 p.m. UTC
Factor out new helper function xfs_attr_leaf_try_add.
Because new delayed attribute routines cannot roll
transactions, we carve off the parts of
xfs_attr_leaf_addname that we can use.  This will help
to reduce repetitive code later when we introduce
delayed attributes.

Signed-off-by: Allison Collins <allison.henderson@oracle.com>
---
 fs/xfs/libxfs/xfs_attr.c | 43 +++++++++++++++++++++++++++++--------------
 1 file changed, 29 insertions(+), 14 deletions(-)

Comments

Darrick J. Wong Aug. 12, 2019, 4:06 p.m. UTC | #1
On Fri, Aug 09, 2019 at 02:37:16PM -0700, Allison Collins wrote:
> Factor out new helper function xfs_attr_leaf_try_add.
> Because new delayed attribute routines cannot roll
> transactions, we carve off the parts of
> xfs_attr_leaf_addname that we can use.  This will help
> to reduce repetitive code later when we introduce
> delayed attributes.
> 
> Signed-off-by: Allison Collins <allison.henderson@oracle.com>
> ---
>  fs/xfs/libxfs/xfs_attr.c | 43 +++++++++++++++++++++++++++++--------------
>  1 file changed, 29 insertions(+), 14 deletions(-)
> 
> diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
> index f36c792..f9d5e28 100644
> --- a/fs/xfs/libxfs/xfs_attr.c
> +++ b/fs/xfs/libxfs/xfs_attr.c
> @@ -635,19 +635,12 @@ xfs_attr_shortform_addname(xfs_da_args_t *args)
>   * External routines when attribute list is one block
>   *========================================================================*/
>  
> -/*
> - * Add a name to the leaf attribute list structure
> - *
> - * This leaf block cannot have a "remote" value, we only call this routine
> - * if bmap_one_block() says there is only one block (ie: no remote blks).
> - */
>  STATIC int
> -xfs_attr_leaf_addname(
> -	struct xfs_da_args	*args)
> +xfs_attr_leaf_try_add(
> +	struct xfs_da_args	*args,
> +	struct xfs_buf		*bp)
>  {
> -	struct xfs_buf		*bp;
> -	int			retval, error, forkoff;
> -	struct xfs_inode	*dp = args->dp;
> +	int			retval, error;
>  
>  	trace_xfs_attr_leaf_addname(args);
>  
> @@ -692,13 +685,35 @@ xfs_attr_leaf_addname(
>  	retval = xfs_attr3_leaf_add(bp, args);
>  	if (retval == -ENOSPC) {
>  		/*
> -		 * Promote the attribute list to the Btree format, then
> -		 * Commit that transaction so that the node_addname() call
> -		 * can manage its own transactions.
> +		 * Promote the attribute list to the Btree format,

Why does the sentence end with a comma?

>  		 */
>  		error = xfs_attr3_leaf_to_node(args);
>  		if (error)
>  			return error;
> +	}
> +	return retval;
> +}
> +
> +
> +/*
> + * Add a name to the leaf attribute list structure
> + *
> + * This leaf block cannot have a "remote" value, we only call this routine
> + * if bmap_one_block() says there is only one block (ie: no remote blks).
> + */
> +STATIC int
> +xfs_attr_leaf_addname(struct xfs_da_args	*args)
> +{
> +	int retval, error, forkoff;

Indentation problem here.

--D

> +	struct xfs_buf		*bp = NULL;
> +	struct xfs_inode	*dp = args->dp;
> +
> +	retval = xfs_attr_leaf_try_add(args, bp);
> +	if (retval == -ENOSPC) {
> +		/*
> +		 * Commit that transaction so that the node_addname() call
> +		 * can manage its own transactions.
> +		 */
>  		error = xfs_defer_finish(&args->trans);
>  		if (error)
>  			return error;
> -- 
> 2.7.4
>
Allison Henderson Aug. 12, 2019, 7:37 p.m. UTC | #2
On 8/12/19 9:06 AM, Darrick J. Wong wrote:
> On Fri, Aug 09, 2019 at 02:37:16PM -0700, Allison Collins wrote:
>> Factor out new helper function xfs_attr_leaf_try_add.
>> Because new delayed attribute routines cannot roll
>> transactions, we carve off the parts of
>> xfs_attr_leaf_addname that we can use.  This will help
>> to reduce repetitive code later when we introduce
>> delayed attributes.
>>
>> Signed-off-by: Allison Collins <allison.henderson@oracle.com>
>> ---
>>   fs/xfs/libxfs/xfs_attr.c | 43 +++++++++++++++++++++++++++++--------------
>>   1 file changed, 29 insertions(+), 14 deletions(-)
>>
>> diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
>> index f36c792..f9d5e28 100644
>> --- a/fs/xfs/libxfs/xfs_attr.c
>> +++ b/fs/xfs/libxfs/xfs_attr.c
>> @@ -635,19 +635,12 @@ xfs_attr_shortform_addname(xfs_da_args_t *args)
>>    * External routines when attribute list is one block
>>    *========================================================================*/
>>   
>> -/*
>> - * Add a name to the leaf attribute list structure
>> - *
>> - * This leaf block cannot have a "remote" value, we only call this routine
>> - * if bmap_one_block() says there is only one block (ie: no remote blks).
>> - */
>>   STATIC int
>> -xfs_attr_leaf_addname(
>> -	struct xfs_da_args	*args)
>> +xfs_attr_leaf_try_add(
>> +	struct xfs_da_args	*args,
>> +	struct xfs_buf		*bp)
>>   {
>> -	struct xfs_buf		*bp;
>> -	int			retval, error, forkoff;
>> -	struct xfs_inode	*dp = args->dp;
>> +	int			retval, error;
>>   
>>   	trace_xfs_attr_leaf_addname(args);
>>   
>> @@ -692,13 +685,35 @@ xfs_attr_leaf_addname(
>>   	retval = xfs_attr3_leaf_add(bp, args);
>>   	if (retval == -ENOSPC) {
>>   		/*
>> -		 * Promote the attribute list to the Btree format, then
>> -		 * Commit that transaction so that the node_addname() call
>> -		 * can manage its own transactions.
>> +		 * Promote the attribute list to the Btree format,
> 
> Why does the sentence end with a comma?
I think there came a point when they all started looking the same!  Lol, 
will clean up.  :-)

> 
>>   		 */
>>   		error = xfs_attr3_leaf_to_node(args);
>>   		if (error)
>>   			return error;
>> +	}
>> +	return retval;
>> +}
>> +
>> +
>> +/*
>> + * Add a name to the leaf attribute list structure
>> + *
>> + * This leaf block cannot have a "remote" value, we only call this routine
>> + * if bmap_one_block() says there is only one block (ie: no remote blks).
>> + */
>> +STATIC int
>> +xfs_attr_leaf_addname(struct xfs_da_args	*args)
>> +{
>> +	int retval, error, forkoff;
> 
> Indentation problem here.
Alrighty, will catch.  Thanks!

Allison

> 
> --D
> 
>> +	struct xfs_buf		*bp = NULL;
>> +	struct xfs_inode	*dp = args->dp;
>> +
>> +	retval = xfs_attr_leaf_try_add(args, bp);
>> +	if (retval == -ENOSPC) {
>> +		/*
>> +		 * Commit that transaction so that the node_addname() call
>> +		 * can manage its own transactions.
>> +		 */
>>   		error = xfs_defer_finish(&args->trans);
>>   		if (error)
>>   			return error;
>> -- 
>> 2.7.4
>>
diff mbox series

Patch

diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index f36c792..f9d5e28 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -635,19 +635,12 @@  xfs_attr_shortform_addname(xfs_da_args_t *args)
  * External routines when attribute list is one block
  *========================================================================*/
 
-/*
- * Add a name to the leaf attribute list structure
- *
- * This leaf block cannot have a "remote" value, we only call this routine
- * if bmap_one_block() says there is only one block (ie: no remote blks).
- */
 STATIC int
-xfs_attr_leaf_addname(
-	struct xfs_da_args	*args)
+xfs_attr_leaf_try_add(
+	struct xfs_da_args	*args,
+	struct xfs_buf		*bp)
 {
-	struct xfs_buf		*bp;
-	int			retval, error, forkoff;
-	struct xfs_inode	*dp = args->dp;
+	int			retval, error;
 
 	trace_xfs_attr_leaf_addname(args);
 
@@ -692,13 +685,35 @@  xfs_attr_leaf_addname(
 	retval = xfs_attr3_leaf_add(bp, args);
 	if (retval == -ENOSPC) {
 		/*
-		 * Promote the attribute list to the Btree format, then
-		 * Commit that transaction so that the node_addname() call
-		 * can manage its own transactions.
+		 * Promote the attribute list to the Btree format,
 		 */
 		error = xfs_attr3_leaf_to_node(args);
 		if (error)
 			return error;
+	}
+	return retval;
+}
+
+
+/*
+ * Add a name to the leaf attribute list structure
+ *
+ * This leaf block cannot have a "remote" value, we only call this routine
+ * if bmap_one_block() says there is only one block (ie: no remote blks).
+ */
+STATIC int
+xfs_attr_leaf_addname(struct xfs_da_args	*args)
+{
+	int retval, error, forkoff;
+	struct xfs_buf		*bp = NULL;
+	struct xfs_inode	*dp = args->dp;
+
+	retval = xfs_attr_leaf_try_add(args, bp);
+	if (retval == -ENOSPC) {
+		/*
+		 * Commit that transaction so that the node_addname() call
+		 * can manage its own transactions.
+		 */
 		error = xfs_defer_finish(&args->trans);
 		if (error)
 			return error;