Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755622AbcCTSwH (ORCPT ); Sun, 20 Mar 2016 14:52:07 -0400 Received: from mga01.intel.com ([192.55.52.88]:12527 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752606AbcCTSm7 (ORCPT ); Sun, 20 Mar 2016 14:42:59 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,367,1455004800"; d="scan'208";a="928135630" From: "Kirill A. Shutemov" To: Andrew Morton , Alexander Viro , Linus Torvalds Cc: Christoph Lameter , Matthew Wilcox , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, "Kirill A. Shutemov" , Trond Myklebust , Anna Schumaker Subject: [PATCH 50/71] nfs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros Date: Sun, 20 Mar 2016 21:40:57 +0300 Message-Id: <1458499278-1516-51-git-send-email-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1458499278-1516-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1458499278-1516-1-git-send-email-kirill.shutemov@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 28718 Lines: 813 PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time ago with promise that one day it will be possible to implement page cache with bigger chunks than PAGE_SIZE. This promise never materialized. And unlikely will. We have many places where PAGE_CACHE_SIZE assumed to be equal to PAGE_SIZE. And it's constant source of confusion on whether PAGE_CACHE_* or PAGE_* constant should be used in a particular case, especially on the border between fs and mm. Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much breakage to be doable. Let's stop pretending that pages in page cache are special. They are not. The changes are pretty straight-forward: - << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> ; - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN}; - page_cache_get() -> get_page(); - page_cache_release() -> put_page(); Signed-off-by: Kirill A. Shutemov Cc: Trond Myklebust Cc: Anna Schumaker --- fs/nfs/blocklayout/blocklayout.c | 24 ++++++++--------- fs/nfs/blocklayout/blocklayout.h | 4 +-- fs/nfs/client.c | 8 +++--- fs/nfs/dir.c | 4 +-- fs/nfs/direct.c | 8 +++--- fs/nfs/file.c | 20 +++++++------- fs/nfs/internal.h | 6 ++--- fs/nfs/nfs4xdr.c | 2 +- fs/nfs/objlayout/objio_osd.c | 2 +- fs/nfs/pagelist.c | 6 ++--- fs/nfs/pnfs.c | 6 ++--- fs/nfs/read.c | 16 +++++------ fs/nfs/write.c | 4 +-- include/linux/nfs_page.h | 6 ++--- include/linux/sunrpc/svc.h | 2 +- net/sunrpc/auth_gss/auth_gss.c | 8 +++--- net/sunrpc/auth_gss/gss_krb5_crypto.c | 2 +- net/sunrpc/auth_gss/gss_krb5_wrap.c | 4 +-- net/sunrpc/cache.c | 4 +-- net/sunrpc/rpc_pipe.c | 4 +-- net/sunrpc/socklib.c | 6 ++--- net/sunrpc/xdr.c | 50 +++++++++++++++++------------------ 22 files changed, 98 insertions(+), 98 deletions(-) diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index ddd0138f410c..bba0ba9f7eb1 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -231,7 +231,7 @@ bl_read_pagelist(struct nfs_pgio_header *header) size_t bytes_left = header->args.count; unsigned int pg_offset = header->args.pgbase, pg_len; struct page **pages = header->args.pages; - int pg_index = header->args.pgbase >> PAGE_CACHE_SHIFT; + int pg_index = header->args.pgbase >> PAGE_SHIFT; const bool is_dio = (header->dreq != NULL); struct blk_plug plug; int i; @@ -263,13 +263,13 @@ bl_read_pagelist(struct nfs_pgio_header *header) } if (is_dio) { - if (pg_offset + bytes_left > PAGE_CACHE_SIZE) - pg_len = PAGE_CACHE_SIZE - pg_offset; + if (pg_offset + bytes_left > PAGE_SIZE) + pg_len = PAGE_SIZE - pg_offset; else pg_len = bytes_left; } else { BUG_ON(pg_offset != 0); - pg_len = PAGE_CACHE_SIZE; + pg_len = PAGE_SIZE; } if (is_hole(&be)) { @@ -339,9 +339,9 @@ static void bl_write_cleanup(struct work_struct *work) if (likely(!hdr->pnfs_error)) { struct pnfs_block_layout *bl = BLK_LSEG2EXT(hdr->lseg); - u64 start = hdr->args.offset & (loff_t)PAGE_CACHE_MASK; + u64 start = hdr->args.offset & (loff_t)PAGE_MASK; u64 end = (hdr->args.offset + hdr->args.count + - PAGE_CACHE_SIZE - 1) & (loff_t)PAGE_CACHE_MASK; + PAGE_SIZE - 1) & (loff_t)PAGE_MASK; ext_tree_mark_written(bl, start >> SECTOR_SHIFT, (end - start) >> SECTOR_SHIFT); @@ -373,7 +373,7 @@ bl_write_pagelist(struct nfs_pgio_header *header, int sync) loff_t offset = header->args.offset; size_t count = header->args.count; struct page **pages = header->args.pages; - int pg_index = header->args.pgbase >> PAGE_CACHE_SHIFT; + int pg_index = header->args.pgbase >> PAGE_SHIFT; unsigned int pg_len; struct blk_plug plug; int i; @@ -392,7 +392,7 @@ bl_write_pagelist(struct nfs_pgio_header *header, int sync) blk_start_plug(&plug); /* we always write out the whole page */ - offset = offset & (loff_t)PAGE_CACHE_MASK; + offset = offset & (loff_t)PAGE_MASK; isect = offset >> SECTOR_SHIFT; for (i = pg_index; i < header->page_array.npages; i++) { @@ -408,7 +408,7 @@ bl_write_pagelist(struct nfs_pgio_header *header, int sync) extent_length = be.be_length - (isect - be.be_f_offset); } - pg_len = PAGE_CACHE_SIZE; + pg_len = PAGE_SIZE; bio = do_add_page_to_bio(bio, header->page_array.npages - i, WRITE, isect, pages[i], &map, &be, bl_end_io_write, par, @@ -806,7 +806,7 @@ static u64 pnfs_num_cont_bytes(struct inode *inode, pgoff_t idx) pgoff_t end; /* Optimize common case that writes from 0 to end of file */ - end = DIV_ROUND_UP(i_size_read(inode), PAGE_CACHE_SIZE); + end = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); if (end != inode->i_mapping->nrpages) { rcu_read_lock(); end = page_cache_next_hole(mapping, idx + 1, ULONG_MAX); @@ -814,9 +814,9 @@ static u64 pnfs_num_cont_bytes(struct inode *inode, pgoff_t idx) } if (!end) - return i_size_read(inode) - (idx << PAGE_CACHE_SHIFT); + return i_size_read(inode) - (idx << PAGE_SHIFT); else - return (end - idx) << PAGE_CACHE_SHIFT; + return (end - idx) << PAGE_SHIFT; } static void diff --git a/fs/nfs/blocklayout/blocklayout.h b/fs/nfs/blocklayout/blocklayout.h index c556640dcf3b..f99371796c63 100644 --- a/fs/nfs/blocklayout/blocklayout.h +++ b/fs/nfs/blocklayout/blocklayout.h @@ -40,8 +40,8 @@ #include "../pnfs.h" #include "../netns.h" -#define PAGE_CACHE_SECTORS (PAGE_CACHE_SIZE >> SECTOR_SHIFT) -#define PAGE_CACHE_SECTOR_SHIFT (PAGE_CACHE_SHIFT - SECTOR_SHIFT) +#define PAGE_CACHE_SECTORS (PAGE_SIZE >> SECTOR_SHIFT) +#define PAGE_CACHE_SECTOR_SHIFT (PAGE_SHIFT - SECTOR_SHIFT) #define SECTOR_SIZE (1 << SECTOR_SHIFT) struct pnfs_block_dev; diff --git a/fs/nfs/client.c b/fs/nfs/client.c index d6d5d2a48e83..0c96528db94a 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -736,7 +736,7 @@ static void nfs_server_set_fsinfo(struct nfs_server *server, server->rsize = max_rpc_payload; if (server->rsize > NFS_MAX_FILE_IO_SIZE) server->rsize = NFS_MAX_FILE_IO_SIZE; - server->rpages = (server->rsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; + server->rpages = (server->rsize + PAGE_SIZE - 1) >> PAGE_SHIFT; server->backing_dev_info.name = "nfs"; server->backing_dev_info.ra_pages = server->rpages * NFS_MAX_READAHEAD; @@ -745,13 +745,13 @@ static void nfs_server_set_fsinfo(struct nfs_server *server, server->wsize = max_rpc_payload; if (server->wsize > NFS_MAX_FILE_IO_SIZE) server->wsize = NFS_MAX_FILE_IO_SIZE; - server->wpages = (server->wsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; + server->wpages = (server->wsize + PAGE_SIZE - 1) >> PAGE_SHIFT; server->wtmult = nfs_block_bits(fsinfo->wtmult, NULL); server->dtsize = nfs_block_size(fsinfo->dtpref, NULL); - if (server->dtsize > PAGE_CACHE_SIZE * NFS_MAX_READDIR_PAGES) - server->dtsize = PAGE_CACHE_SIZE * NFS_MAX_READDIR_PAGES; + if (server->dtsize > PAGE_SIZE * NFS_MAX_READDIR_PAGES) + server->dtsize = PAGE_SIZE * NFS_MAX_READDIR_PAGES; if (server->dtsize > server->rsize) server->dtsize = server->rsize; diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 4bfa7d8bcade..adef506c5786 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -707,7 +707,7 @@ void cache_page_release(nfs_readdir_descriptor_t *desc) { if (!desc->page->mapping) nfs_readdir_clear_array(desc->page); - page_cache_release(desc->page); + put_page(desc->page); desc->page = NULL; } @@ -1923,7 +1923,7 @@ int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) * add_to_page_cache_lru() grabs an extra page refcount. * Drop it here to avoid leaking this page later. */ - page_cache_release(page); + put_page(page); } else __free_page(page); diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 7a0cfd3266e5..c93826e4a8c6 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -269,7 +269,7 @@ static void nfs_direct_release_pages(struct page **pages, unsigned int npages) { unsigned int i; for (i = 0; i < npages; i++) - page_cache_release(pages[i]); + put_page(pages[i]); } void nfs_init_cinfo_from_dreq(struct nfs_commit_info *cinfo, @@ -1003,7 +1003,7 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter) iov_iter_count(iter)); pos = iocb->ki_pos; - end = (pos + iov_iter_count(iter) - 1) >> PAGE_CACHE_SHIFT; + end = (pos + iov_iter_count(iter) - 1) >> PAGE_SHIFT; inode_lock(inode); @@ -1013,7 +1013,7 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter) if (mapping->nrpages) { result = invalidate_inode_pages2_range(mapping, - pos >> PAGE_CACHE_SHIFT, end); + pos >> PAGE_SHIFT, end); if (result) goto out_unlock; } @@ -1042,7 +1042,7 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter) if (mapping->nrpages) { invalidate_inode_pages2_range(mapping, - pos >> PAGE_CACHE_SHIFT, end); + pos >> PAGE_SHIFT, end); } inode_unlock(inode); diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 748bb813b8ec..1ef3ac728ff4 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -318,7 +318,7 @@ static int nfs_want_read_modify_write(struct file *file, struct page *page, loff_t pos, unsigned len) { unsigned int pglen = nfs_page_length(page); - unsigned int offset = pos & (PAGE_CACHE_SIZE - 1); + unsigned int offset = pos & (PAGE_SIZE - 1); unsigned int end = offset + len; if (pnfs_ld_read_whole_page(file->f_mapping->host)) { @@ -349,7 +349,7 @@ static int nfs_write_begin(struct file *file, struct address_space *mapping, struct page **pagep, void **fsdata) { int ret; - pgoff_t index = pos >> PAGE_CACHE_SHIFT; + pgoff_t index = pos >> PAGE_SHIFT; struct page *page; int once_thru = 0; @@ -378,12 +378,12 @@ start: ret = nfs_flush_incompatible(file, page); if (ret) { unlock_page(page); - page_cache_release(page); + put_page(page); } else if (!once_thru && nfs_want_read_modify_write(file, page, pos, len)) { once_thru = 1; ret = nfs_readpage(file, page); - page_cache_release(page); + put_page(page); if (!ret) goto start; } @@ -394,7 +394,7 @@ static int nfs_write_end(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, struct page *page, void *fsdata) { - unsigned offset = pos & (PAGE_CACHE_SIZE - 1); + unsigned offset = pos & (PAGE_SIZE - 1); struct nfs_open_context *ctx = nfs_file_open_context(file); int status; @@ -411,20 +411,20 @@ static int nfs_write_end(struct file *file, struct address_space *mapping, if (pglen == 0) { zero_user_segments(page, 0, offset, - end, PAGE_CACHE_SIZE); + end, PAGE_SIZE); SetPageUptodate(page); } else if (end >= pglen) { - zero_user_segment(page, end, PAGE_CACHE_SIZE); + zero_user_segment(page, end, PAGE_SIZE); if (offset == 0) SetPageUptodate(page); } else - zero_user_segment(page, pglen, PAGE_CACHE_SIZE); + zero_user_segment(page, pglen, PAGE_SIZE); } status = nfs_updatepage(file, page, offset, copied); unlock_page(page); - page_cache_release(page); + put_page(page); if (status < 0) return status; @@ -452,7 +452,7 @@ static void nfs_invalidate_page(struct page *page, unsigned int offset, dfprintk(PAGECACHE, "NFS: invalidate_page(%p, %u, %u)\n", page, offset, length); - if (offset != 0 || length < PAGE_CACHE_SIZE) + if (offset != 0 || length < PAGE_SIZE) return; /* Cancel any unstarted writes on this page */ nfs_wb_page_cancel(page_file_mapping(page)->host, page); diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 9a547aa3ec8e..dd822c9a052d 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -642,11 +642,11 @@ unsigned int nfs_page_length(struct page *page) if (i_size > 0) { pgoff_t page_index = page_file_index(page); - pgoff_t end_index = (i_size - 1) >> PAGE_CACHE_SHIFT; + pgoff_t end_index = (i_size - 1) >> PAGE_SHIFT; if (page_index < end_index) - return PAGE_CACHE_SIZE; + return PAGE_SIZE; if (page_index == end_index) - return ((i_size - 1) & ~PAGE_CACHE_MASK) + 1; + return ((i_size - 1) & ~PAGE_MASK) + 1; } return 0; } diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 4e4441216804..88474a4fc669 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -5001,7 +5001,7 @@ static int decode_space_limit(struct xdr_stream *xdr, blocksize = be32_to_cpup(p); maxsize = (uint64_t)nblocks * (uint64_t)blocksize; } - maxsize >>= PAGE_CACHE_SHIFT; + maxsize >>= PAGE_SHIFT; *pagemod_limit = min_t(u64, maxsize, ULONG_MAX); return 0; out_overflow: diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c index 9aebffb40505..049c1b1f2932 100644 --- a/fs/nfs/objlayout/objio_osd.c +++ b/fs/nfs/objlayout/objio_osd.c @@ -486,7 +486,7 @@ static void __r4w_put_page(void *priv, struct page *page) dprintk("%s: index=0x%lx\n", __func__, (page == ZERO_PAGE(0)) ? -1UL : page->index); if (ZERO_PAGE(0) != page) - page_cache_release(page); + put_page(page); return; } diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 8ce4f61cbaa5..1f6db4231057 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -342,7 +342,7 @@ nfs_create_request(struct nfs_open_context *ctx, struct page *page, * update_nfs_request below if the region is not locked. */ req->wb_page = page; req->wb_index = page_file_index(page); - page_cache_get(page); + get_page(page); req->wb_offset = offset; req->wb_pgbase = offset; req->wb_bytes = count; @@ -392,7 +392,7 @@ static void nfs_clear_request(struct nfs_page *req) struct nfs_lock_context *l_ctx = req->wb_lock_context; if (page != NULL) { - page_cache_release(page); + put_page(page); req->wb_page = NULL; } if (l_ctx != NULL) { @@ -904,7 +904,7 @@ static bool nfs_can_coalesce_requests(struct nfs_page *prev, return false; } else { if (req->wb_pgbase != 0 || - prev->wb_pgbase + prev->wb_bytes != PAGE_CACHE_SIZE) + prev->wb_pgbase + prev->wb_bytes != PAGE_SIZE) return false; } } diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 2fa483e6dbe2..89a5ef4df08a 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -841,7 +841,7 @@ send_layoutget(struct pnfs_layout_hdr *lo, i_size = i_size_read(ino); - lgp->args.minlength = PAGE_CACHE_SIZE; + lgp->args.minlength = PAGE_SIZE; if (lgp->args.minlength > range->length) lgp->args.minlength = range->length; if (range->iomode == IOMODE_READ) { @@ -1618,13 +1618,13 @@ lookup_again: spin_unlock(&clp->cl_lock); } - pg_offset = arg.offset & ~PAGE_CACHE_MASK; + pg_offset = arg.offset & ~PAGE_MASK; if (pg_offset) { arg.offset -= pg_offset; arg.length += pg_offset; } if (arg.length != NFS4_MAX_UINT64) - arg.length = PAGE_CACHE_ALIGN(arg.length); + arg.length = PAGE_ALIGN(arg.length); lseg = send_layoutget(lo, ctx, &arg, gfp_flags); atomic_dec(&lo->plh_outstanding); diff --git a/fs/nfs/read.c b/fs/nfs/read.c index eb31e23e7def..6776d7a7839e 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -46,7 +46,7 @@ static void nfs_readhdr_free(struct nfs_pgio_header *rhdr) static int nfs_return_empty_page(struct page *page) { - zero_user(page, 0, PAGE_CACHE_SIZE); + zero_user(page, 0, PAGE_SIZE); SetPageUptodate(page); unlock_page(page); return 0; @@ -118,8 +118,8 @@ int nfs_readpage_async(struct nfs_open_context *ctx, struct inode *inode, unlock_page(page); return PTR_ERR(new); } - if (len < PAGE_CACHE_SIZE) - zero_user_segment(page, len, PAGE_CACHE_SIZE); + if (len < PAGE_SIZE) + zero_user_segment(page, len, PAGE_SIZE); nfs_pageio_init_read(&pgio, inode, false, &nfs_async_read_completion_ops); @@ -295,7 +295,7 @@ int nfs_readpage(struct file *file, struct page *page) int error; dprintk("NFS: nfs_readpage (%p %ld@%lu)\n", - page, PAGE_CACHE_SIZE, page_file_index(page)); + page, PAGE_SIZE, page_file_index(page)); nfs_inc_stats(inode, NFSIOS_VFSREADPAGE); nfs_add_stats(inode, NFSIOS_READPAGES, 1); @@ -361,8 +361,8 @@ readpage_async_filler(void *data, struct page *page) if (IS_ERR(new)) goto out_error; - if (len < PAGE_CACHE_SIZE) - zero_user_segment(page, len, PAGE_CACHE_SIZE); + if (len < PAGE_SIZE) + zero_user_segment(page, len, PAGE_SIZE); if (!nfs_pageio_add_request(desc->pgio, new)) { nfs_list_remove_request(new); nfs_readpage_release(new); @@ -424,8 +424,8 @@ int nfs_readpages(struct file *filp, struct address_space *mapping, pgm = &pgio.pg_mirrors[0]; NFS_I(inode)->read_io += pgm->pg_bytes_written; - npages = (pgm->pg_bytes_written + PAGE_CACHE_SIZE - 1) >> - PAGE_CACHE_SHIFT; + npages = (pgm->pg_bytes_written + PAGE_SIZE - 1) >> + PAGE_SHIFT; nfs_add_stats(inode, NFSIOS_READPAGES, npages); read_complete: put_nfs_open_context(desc.ctx); diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 5754835a2886..5f4fd53e5764 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -150,7 +150,7 @@ static void nfs_grow_file(struct page *page, unsigned int offset, unsigned int c spin_lock(&inode->i_lock); i_size = i_size_read(inode); - end_index = (i_size - 1) >> PAGE_CACHE_SHIFT; + end_index = (i_size - 1) >> PAGE_SHIFT; if (i_size > 0 && page_file_index(page) < end_index) goto out; end = page_file_offset(page) + ((loff_t)offset+count); @@ -1942,7 +1942,7 @@ int nfs_wb_page_cancel(struct inode *inode, struct page *page) int nfs_wb_single_page(struct inode *inode, struct page *page, bool launder) { loff_t range_start = page_file_offset(page); - loff_t range_end = range_start + (loff_t)(PAGE_CACHE_SIZE - 1); + loff_t range_end = range_start + (loff_t)(PAGE_SIZE - 1); struct writeback_control wbc = { .sync_mode = WB_SYNC_ALL, .nr_to_write = 0, diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index f2f650f136ee..957049f72290 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -41,8 +41,8 @@ struct nfs_page { struct page *wb_page; /* page to read in/write out */ struct nfs_open_context *wb_context; /* File state context info */ struct nfs_lock_context *wb_lock_context; /* lock context info */ - pgoff_t wb_index; /* Offset >> PAGE_CACHE_SHIFT */ - unsigned int wb_offset, /* Offset & ~PAGE_CACHE_MASK */ + pgoff_t wb_index; /* Offset >> PAGE_SHIFT */ + unsigned int wb_offset, /* Offset & ~PAGE_MASK */ wb_pgbase, /* Start of page data */ wb_bytes; /* Length of request */ struct kref wb_kref; /* reference count */ @@ -184,7 +184,7 @@ nfs_list_entry(struct list_head *head) static inline loff_t req_offset(struct nfs_page *req) { - return (((loff_t)req->wb_index) << PAGE_CACHE_SHIFT) + req->wb_offset; + return (((loff_t)req->wb_index) << PAGE_SHIFT) + req->wb_offset; } #endif /* _LINUX_NFS_PAGE_H */ diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index cc0fc712bb82..7ca44fb5b675 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -129,7 +129,7 @@ static inline void svc_get(struct svc_serv *serv) * * These happen to all be powers of 2, which is not strictly * necessary but helps enforce the real limitation, which is - * that they should be multiples of PAGE_CACHE_SIZE. + * that they should be multiples of PAGE_SIZE. * * For UDP transports, a block plus NFS,RPC, and UDP headers * has to fit into the IP datagram limit of 64K. The largest diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c index cabf586f47d7..a9fc819429ef 100644 --- a/net/sunrpc/auth_gss/auth_gss.c +++ b/net/sunrpc/auth_gss/auth_gss.c @@ -1728,8 +1728,8 @@ alloc_enc_pages(struct rpc_rqst *rqstp) return 0; } - first = snd_buf->page_base >> PAGE_CACHE_SHIFT; - last = (snd_buf->page_base + snd_buf->page_len - 1) >> PAGE_CACHE_SHIFT; + first = snd_buf->page_base >> PAGE_SHIFT; + last = (snd_buf->page_base + snd_buf->page_len - 1) >> PAGE_SHIFT; rqstp->rq_enc_pages_num = last - first + 1 + 1; rqstp->rq_enc_pages = kmalloc(rqstp->rq_enc_pages_num * sizeof(struct page *), @@ -1775,10 +1775,10 @@ gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx, status = alloc_enc_pages(rqstp); if (status) return status; - first = snd_buf->page_base >> PAGE_CACHE_SHIFT; + first = snd_buf->page_base >> PAGE_SHIFT; inpages = snd_buf->pages + first; snd_buf->pages = rqstp->rq_enc_pages; - snd_buf->page_base -= first << PAGE_CACHE_SHIFT; + snd_buf->page_base -= first << PAGE_SHIFT; /* * Give the tail its own page, in case we need extra space in the * head when wrapping: diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c index d94a8e1e9f05..045e11ecd332 100644 --- a/net/sunrpc/auth_gss/gss_krb5_crypto.c +++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c @@ -465,7 +465,7 @@ encryptor(struct scatterlist *sg, void *data) page_pos = desc->pos - outbuf->head[0].iov_len; if (page_pos >= 0 && page_pos < outbuf->page_len) { /* pages are not in place: */ - int i = (page_pos + outbuf->page_base) >> PAGE_CACHE_SHIFT; + int i = (page_pos + outbuf->page_base) >> PAGE_SHIFT; in_page = desc->pages[i]; } else { in_page = sg_page(sg); diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c index 765088e4ad84..a737c2da0837 100644 --- a/net/sunrpc/auth_gss/gss_krb5_wrap.c +++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c @@ -79,9 +79,9 @@ gss_krb5_remove_padding(struct xdr_buf *buf, int blocksize) len -= buf->head[0].iov_len; if (len <= buf->page_len) { unsigned int last = (buf->page_base + len - 1) - >>PAGE_CACHE_SHIFT; + >>PAGE_SHIFT; unsigned int offset = (buf->page_base + len - 1) - & (PAGE_CACHE_SIZE - 1); + & (PAGE_SIZE - 1); ptr = kmap_atomic(buf->pages[last]); pad = *(ptr + offset); kunmap_atomic(ptr); diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 273bc3a35425..e59a6d952b57 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -881,7 +881,7 @@ static ssize_t cache_downcall(struct address_space *mapping, char *kaddr; ssize_t ret = -ENOMEM; - if (count >= PAGE_CACHE_SIZE) + if (count >= PAGE_SIZE) goto out_slow; page = find_or_create_page(mapping, 0, GFP_KERNEL); @@ -892,7 +892,7 @@ static ssize_t cache_downcall(struct address_space *mapping, ret = cache_do_downcall(kaddr, buf, count, cd); kunmap(page); unlock_page(page); - page_cache_release(page); + put_page(page); return ret; out_slow: return cache_slow_downcall(buf, count, cd); diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 31789ef3e614..fc48eca21fd2 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -1390,8 +1390,8 @@ rpc_fill_super(struct super_block *sb, void *data, int silent) struct sunrpc_net *sn = net_generic(net, sunrpc_net_id); int err; - sb->s_blocksize = PAGE_CACHE_SIZE; - sb->s_blocksize_bits = PAGE_CACHE_SHIFT; + sb->s_blocksize = PAGE_SIZE; + sb->s_blocksize_bits = PAGE_SHIFT; sb->s_magic = RPCAUTH_GSSMAGIC; sb->s_op = &s_ops; sb->s_d_op = &simple_dentry_operations; diff --git a/net/sunrpc/socklib.c b/net/sunrpc/socklib.c index 2df87f78e518..de70c78025d7 100644 --- a/net/sunrpc/socklib.c +++ b/net/sunrpc/socklib.c @@ -96,8 +96,8 @@ ssize_t xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, struct if (base || xdr->page_base) { pglen -= base; base += xdr->page_base; - ppage += base >> PAGE_CACHE_SHIFT; - base &= ~PAGE_CACHE_MASK; + ppage += base >> PAGE_SHIFT; + base &= ~PAGE_MASK; } do { char *kaddr; @@ -113,7 +113,7 @@ ssize_t xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, struct } } - len = PAGE_CACHE_SIZE; + len = PAGE_SIZE; kaddr = kmap_atomic(*ppage); if (base) { len -= base; diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 4439ac4c1b53..6bdb3865212d 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -164,7 +164,7 @@ EXPORT_SYMBOL_GPL(xdr_inline_pages); * Note: the addresses pgto_base and pgfrom_base are both calculated in * the same way: * if a memory area starts at byte 'base' in page 'pages[i]', - * then its address is given as (i << PAGE_CACHE_SHIFT) + base + * then its address is given as (i << PAGE_SHIFT) + base * Also note: pgfrom_base must be < pgto_base, but the memory areas * they point to may overlap. */ @@ -181,20 +181,20 @@ _shift_data_right_pages(struct page **pages, size_t pgto_base, pgto_base += len; pgfrom_base += len; - pgto = pages + (pgto_base >> PAGE_CACHE_SHIFT); - pgfrom = pages + (pgfrom_base >> PAGE_CACHE_SHIFT); + pgto = pages + (pgto_base >> PAGE_SHIFT); + pgfrom = pages + (pgfrom_base >> PAGE_SHIFT); - pgto_base &= ~PAGE_CACHE_MASK; - pgfrom_base &= ~PAGE_CACHE_MASK; + pgto_base &= ~PAGE_MASK; + pgfrom_base &= ~PAGE_MASK; do { /* Are any pointers crossing a page boundary? */ if (pgto_base == 0) { - pgto_base = PAGE_CACHE_SIZE; + pgto_base = PAGE_SIZE; pgto--; } if (pgfrom_base == 0) { - pgfrom_base = PAGE_CACHE_SIZE; + pgfrom_base = PAGE_SIZE; pgfrom--; } @@ -236,11 +236,11 @@ _copy_to_pages(struct page **pages, size_t pgbase, const char *p, size_t len) char *vto; size_t copy; - pgto = pages + (pgbase >> PAGE_CACHE_SHIFT); - pgbase &= ~PAGE_CACHE_MASK; + pgto = pages + (pgbase >> PAGE_SHIFT); + pgbase &= ~PAGE_MASK; for (;;) { - copy = PAGE_CACHE_SIZE - pgbase; + copy = PAGE_SIZE - pgbase; if (copy > len) copy = len; @@ -253,7 +253,7 @@ _copy_to_pages(struct page **pages, size_t pgbase, const char *p, size_t len) break; pgbase += copy; - if (pgbase == PAGE_CACHE_SIZE) { + if (pgbase == PAGE_SIZE) { flush_dcache_page(*pgto); pgbase = 0; pgto++; @@ -280,11 +280,11 @@ _copy_from_pages(char *p, struct page **pages, size_t pgbase, size_t len) char *vfrom; size_t copy; - pgfrom = pages + (pgbase >> PAGE_CACHE_SHIFT); - pgbase &= ~PAGE_CACHE_MASK; + pgfrom = pages + (pgbase >> PAGE_SHIFT); + pgbase &= ~PAGE_MASK; do { - copy = PAGE_CACHE_SIZE - pgbase; + copy = PAGE_SIZE - pgbase; if (copy > len) copy = len; @@ -293,7 +293,7 @@ _copy_from_pages(char *p, struct page **pages, size_t pgbase, size_t len) kunmap_atomic(vfrom); pgbase += copy; - if (pgbase == PAGE_CACHE_SIZE) { + if (pgbase == PAGE_SIZE) { pgbase = 0; pgfrom++; } @@ -1038,8 +1038,8 @@ xdr_buf_subsegment(struct xdr_buf *buf, struct xdr_buf *subbuf, if (base < buf->page_len) { subbuf->page_len = min(buf->page_len - base, len); base += buf->page_base; - subbuf->page_base = base & ~PAGE_CACHE_MASK; - subbuf->pages = &buf->pages[base >> PAGE_CACHE_SHIFT]; + subbuf->page_base = base & ~PAGE_MASK; + subbuf->pages = &buf->pages[base >> PAGE_SHIFT]; len -= subbuf->page_len; base = 0; } else { @@ -1297,9 +1297,9 @@ xdr_xcode_array2(struct xdr_buf *buf, unsigned int base, todo -= avail_here; base += buf->page_base; - ppages = buf->pages + (base >> PAGE_CACHE_SHIFT); - base &= ~PAGE_CACHE_MASK; - avail_page = min_t(unsigned int, PAGE_CACHE_SIZE - base, + ppages = buf->pages + (base >> PAGE_SHIFT); + base &= ~PAGE_MASK; + avail_page = min_t(unsigned int, PAGE_SIZE - base, avail_here); c = kmap(*ppages) + base; @@ -1383,7 +1383,7 @@ xdr_xcode_array2(struct xdr_buf *buf, unsigned int base, } avail_page = min(avail_here, - (unsigned int) PAGE_CACHE_SIZE); + (unsigned int) PAGE_SIZE); } base = buf->page_len; /* align to start of tail */ } @@ -1479,9 +1479,9 @@ xdr_process_buf(struct xdr_buf *buf, unsigned int offset, unsigned int len, if (page_len > len) page_len = len; len -= page_len; - page_offset = (offset + buf->page_base) & (PAGE_CACHE_SIZE - 1); - i = (offset + buf->page_base) >> PAGE_CACHE_SHIFT; - thislen = PAGE_CACHE_SIZE - page_offset; + page_offset = (offset + buf->page_base) & (PAGE_SIZE - 1); + i = (offset + buf->page_base) >> PAGE_SHIFT; + thislen = PAGE_SIZE - page_offset; do { if (thislen > page_len) thislen = page_len; @@ -1492,7 +1492,7 @@ xdr_process_buf(struct xdr_buf *buf, unsigned int offset, unsigned int len, page_len -= thislen; i++; page_offset = 0; - thislen = PAGE_CACHE_SIZE; + thislen = PAGE_SIZE; } while (page_len != 0); offset = 0; } -- 2.7.0