From c0752cdfbbb691cfe98812f7aed8ce1e766823c4 Mon Sep 17 00:00:00 2001 From: Anna Schumaker Date: Tue, 6 May 2014 09:12:27 -0400 Subject: [PATCH] NFS: Create a common read and write header struct The only difference is the write verifier field, but we can keep that for a little bit longer. Signed-off-by: Anna Schumaker Signed-off-by: Trond Myklebust --- 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 af01b80412dd..b0e7a41d14a8 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 e9cea3ab7cf9..43cfe11aa1a4 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 9e426cc179ed..d29ca3673694 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 3a2fc5c4c79a..37c4c988519c 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 64f6f1491c0d..2d34e0dc1870 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; -- 2.20.1