Re: [PATCH v2 04/17] NFS: Create a common read and write header struct

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 05/02/2014 02:59 PM, Jeff Layton wrote:
> On Fri, 25 Apr 2014 16:55:47 -0400
> Anna Schumaker <Anna.Schumaker@xxxxxxxxxx> wrote:
> 
>> From: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
>>
>> The only difference is the write verifier field, so I leave a comment
>> saying that it's not used for reads.
>>
> 
> nit: that comment doesn't seem to exist...

Interesting.  I wonder where it went?  I'll fix that up, thanks!

Anna
> 
>> Signed-off-by: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
>> ---
>>  fs/nfs/internal.h       |  4 ++--
>>  fs/nfs/pnfs.c           |  4 ++--
>>  fs/nfs/read.c           | 14 +++++++-------
>>  fs/nfs/write.c          | 14 +++++++-------
>>  include/linux/nfs_xdr.h |  7 +------
>>  5 files changed, 19 insertions(+), 24 deletions(-)
>>
>> diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
>> index af01b80..b0e7a41 100644
>> --- a/fs/nfs/internal.h
>> +++ b/fs/nfs/internal.h
>> @@ -395,7 +395,7 @@ extern int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh, bool
>>  
>>  struct nfs_pgio_completion_ops;
>>  /* read.c */
>> -extern struct nfs_read_header *nfs_readhdr_alloc(void);
>> +extern struct nfs_rw_header *nfs_readhdr_alloc(void);
>>  extern void nfs_readhdr_free(struct nfs_pgio_header *hdr);
>>  extern void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio,
>>  			struct inode *inode, bool force_mds,
>> @@ -424,7 +424,7 @@ int nfs_remount(struct super_block *sb, int *flags, char *raw_data);
>>  extern void nfs_pageio_init_write(struct nfs_pageio_descriptor *pgio,
>>  			struct inode *inode, int ioflags, bool force_mds,
>>  			const struct nfs_pgio_completion_ops *compl_ops);
>> -extern struct nfs_write_header *nfs_writehdr_alloc(void);
>> +extern struct nfs_rw_header *nfs_writehdr_alloc(void);
>>  extern void nfs_writehdr_free(struct nfs_pgio_header *hdr);
>>  extern int nfs_generic_flush(struct nfs_pageio_descriptor *desc,
>>  			     struct nfs_pgio_header *hdr);
>> diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
>> index e9cea3a..43cfe11 100644
>> --- a/fs/nfs/pnfs.c
>> +++ b/fs/nfs/pnfs.c
>> @@ -1592,7 +1592,7 @@ EXPORT_SYMBOL_GPL(pnfs_writehdr_free);
>>  int
>>  pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc)
>>  {
>> -	struct nfs_write_header *whdr;
>> +	struct nfs_rw_header *whdr;
>>  	struct nfs_pgio_header *hdr;
>>  	int ret;
>>  
>> @@ -1750,7 +1750,7 @@ EXPORT_SYMBOL_GPL(pnfs_readhdr_free);
>>  int
>>  pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc)
>>  {
>> -	struct nfs_read_header *rhdr;
>> +	struct nfs_rw_header *rhdr;
>>  	struct nfs_pgio_header *hdr;
>>  	int ret;
>>  
>> diff --git a/fs/nfs/read.c b/fs/nfs/read.c
>> index 9e426cc..d29ca36 100644
>> --- a/fs/nfs/read.c
>> +++ b/fs/nfs/read.c
>> @@ -34,9 +34,9 @@ static const struct nfs_pgio_completion_ops nfs_async_read_completion_ops;
>>  
>>  static struct kmem_cache *nfs_rdata_cachep;
>>  
>> -struct nfs_read_header *nfs_readhdr_alloc(void)
>> +struct nfs_rw_header *nfs_readhdr_alloc(void)
>>  {
>> -	struct nfs_read_header *rhdr;
>> +	struct nfs_rw_header *rhdr;
>>  
>>  	rhdr = kmem_cache_zalloc(nfs_rdata_cachep, GFP_KERNEL);
>>  	if (rhdr) {
>> @@ -56,7 +56,7 @@ static struct nfs_pgio_data *nfs_readdata_alloc(struct nfs_pgio_header *hdr,
>>  {
>>  	struct nfs_pgio_data *data, *prealloc;
>>  
>> -	prealloc = &container_of(hdr, struct nfs_read_header, header)->rpc_data;
>> +	prealloc = &container_of(hdr, struct nfs_rw_header, header)->rpc_data;
>>  	if (prealloc->header == NULL)
>>  		data = prealloc;
>>  	else
>> @@ -78,7 +78,7 @@ out:
>>  
>>  void nfs_readhdr_free(struct nfs_pgio_header *hdr)
>>  {
>> -	struct nfs_read_header *rhdr = container_of(hdr, struct nfs_read_header, header);
>> +	struct nfs_rw_header *rhdr = container_of(hdr, struct nfs_rw_header, header);
>>  
>>  	kmem_cache_free(nfs_rdata_cachep, rhdr);
>>  }
>> @@ -87,7 +87,7 @@ EXPORT_SYMBOL_GPL(nfs_readhdr_free);
>>  void nfs_readdata_release(struct nfs_pgio_data *rdata)
>>  {
>>  	struct nfs_pgio_header *hdr = rdata->header;
>> -	struct nfs_read_header *read_header = container_of(hdr, struct nfs_read_header, header);
>> +	struct nfs_rw_header *read_header = container_of(hdr, struct nfs_rw_header, header);
>>  
>>  	put_nfs_open_context(rdata->args.context);
>>  	if (rdata->pages.pagevec != rdata->pages.page_array)
>> @@ -417,7 +417,7 @@ EXPORT_SYMBOL_GPL(nfs_generic_pagein);
>>  
>>  static int nfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc)
>>  {
>> -	struct nfs_read_header *rhdr;
>> +	struct nfs_rw_header *rhdr;
>>  	struct nfs_pgio_header *hdr;
>>  	int ret;
>>  
>> @@ -680,7 +680,7 @@ out:
>>  int __init nfs_init_readpagecache(void)
>>  {
>>  	nfs_rdata_cachep = kmem_cache_create("nfs_read_data",
>> -					     sizeof(struct nfs_read_header),
>> +					     sizeof(struct nfs_rw_header),
>>  					     0, SLAB_HWCACHE_ALIGN,
>>  					     NULL);
>>  	if (nfs_rdata_cachep == NULL)
>> diff --git a/fs/nfs/write.c b/fs/nfs/write.c
>> index 3a2fc5c..37c4c98 100644
>> --- a/fs/nfs/write.c
>> +++ b/fs/nfs/write.c
>> @@ -70,9 +70,9 @@ void nfs_commit_free(struct nfs_commit_data *p)
>>  }
>>  EXPORT_SYMBOL_GPL(nfs_commit_free);
>>  
>> -struct nfs_write_header *nfs_writehdr_alloc(void)
>> +struct nfs_rw_header *nfs_writehdr_alloc(void)
>>  {
>> -	struct nfs_write_header *p = mempool_alloc(nfs_wdata_mempool, GFP_NOIO);
>> +	struct nfs_rw_header *p = mempool_alloc(nfs_wdata_mempool, GFP_NOIO);
>>  
>>  	if (p) {
>>  		struct nfs_pgio_header *hdr = &p->header;
>> @@ -93,7 +93,7 @@ static struct nfs_pgio_data *nfs_writedata_alloc(struct nfs_pgio_header *hdr,
>>  {
>>  	struct nfs_pgio_data *data, *prealloc;
>>  
>> -	prealloc = &container_of(hdr, struct nfs_write_header, header)->rpc_data;
>> +	prealloc = &container_of(hdr, struct nfs_rw_header, header)->rpc_data;
>>  	if (prealloc->header == NULL)
>>  		data = prealloc;
>>  	else
>> @@ -115,7 +115,7 @@ out:
>>  
>>  void nfs_writehdr_free(struct nfs_pgio_header *hdr)
>>  {
>> -	struct nfs_write_header *whdr = container_of(hdr, struct nfs_write_header, header);
>> +	struct nfs_rw_header *whdr = container_of(hdr, struct nfs_rw_header, header);
>>  	mempool_free(whdr, nfs_wdata_mempool);
>>  }
>>  EXPORT_SYMBOL_GPL(nfs_writehdr_free);
>> @@ -123,7 +123,7 @@ EXPORT_SYMBOL_GPL(nfs_writehdr_free);
>>  void nfs_writedata_release(struct nfs_pgio_data *wdata)
>>  {
>>  	struct nfs_pgio_header *hdr = wdata->header;
>> -	struct nfs_write_header *write_header = container_of(hdr, struct nfs_write_header, header);
>> +	struct nfs_rw_header *write_header = container_of(hdr, struct nfs_rw_header, header);
>>  
>>  	put_nfs_open_context(wdata->args.context);
>>  	if (wdata->pages.pagevec != wdata->pages.page_array)
>> @@ -1253,7 +1253,7 @@ EXPORT_SYMBOL_GPL(nfs_generic_flush);
>>  
>>  static int nfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc)
>>  {
>> -	struct nfs_write_header *whdr;
>> +	struct nfs_rw_header *whdr;
>>  	struct nfs_pgio_header *hdr;
>>  	int ret;
>>  
>> @@ -1910,7 +1910,7 @@ int nfs_migrate_page(struct address_space *mapping, struct page *newpage,
>>  int __init nfs_init_writepagecache(void)
>>  {
>>  	nfs_wdata_cachep = kmem_cache_create("nfs_write_data",
>> -					     sizeof(struct nfs_write_header),
>> +					     sizeof(struct nfs_rw_header),
>>  					     0, SLAB_HWCACHE_ALIGN,
>>  					     NULL);
>>  	if (nfs_wdata_cachep == NULL)
>> diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
>> index 64f6f14..2d34e0d 100644
>> --- a/include/linux/nfs_xdr.h
>> +++ b/include/linux/nfs_xdr.h
>> @@ -1294,12 +1294,7 @@ struct nfs_pgio_data {
>>  	struct nfs_client	*ds_clp;	/* pNFS data server */
>>  };
>>  
>> -struct nfs_read_header {
>> -	struct nfs_pgio_header	header;
>> -	struct nfs_pgio_data	rpc_data;
>> -};
>> -
>> -struct nfs_write_header {
>> +struct nfs_rw_header {
>>  	struct nfs_pgio_header	header;
>>  	struct nfs_pgio_data	rpc_data;
>>  	struct nfs_writeverf	verf;
> 
> Looks good otherwise:
> 
> Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxxxxxxx>
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Filesystem Development]     [Linux USB Development]     [Linux Media Development]     [Video for Linux]     [Linux NILFS]     [Linux Audio Users]     [Yosemite Info]     [Linux SCSI]

  Powered by Linux