diff options
Diffstat (limited to 'fs/ocfs2/mmap.c')
| -rw-r--r-- | fs/ocfs2/mmap.c | 49 |
1 files changed, 17 insertions, 32 deletions
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c index 05220b365fb9..50e2faf64c19 100644 --- a/fs/ocfs2/mmap.c +++ b/fs/ocfs2/mmap.c @@ -1,26 +1,10 @@ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +// SPDX-License-Identifier: GPL-2.0-or-later +/* * mmap.c * * Code to deal with the mess that is clustered mmap. * * Copyright (C) 2002, 2004 Oracle. All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. */ #include <linux/fs.h> @@ -60,23 +44,23 @@ static vm_fault_t ocfs2_fault(struct vm_fault *vmf) } static vm_fault_t __ocfs2_page_mkwrite(struct file *file, - struct buffer_head *di_bh, struct page *page) + struct buffer_head *di_bh, struct folio *folio) { int err; vm_fault_t ret = VM_FAULT_NOPAGE; struct inode *inode = file_inode(file); struct address_space *mapping = inode->i_mapping; - loff_t pos = page_offset(page); + loff_t pos = folio_pos(folio); unsigned int len = PAGE_SIZE; pgoff_t last_index; - struct page *locked_page = NULL; + struct folio *locked_folio = NULL; void *fsdata; loff_t size = i_size_read(inode); last_index = (size - 1) >> PAGE_SHIFT; /* - * There are cases that lead to the page no longer bebongs to the + * There are cases that lead to the page no longer belonging to the * mapping. * 1) pagecache truncates locally due to memory pressure. * 2) pagecache truncates when another is taking EX lock against @@ -88,9 +72,9 @@ static vm_fault_t __ocfs2_page_mkwrite(struct file *file, * * Let VM retry with these cases. */ - if ((page->mapping != inode->i_mapping) || - (!PageUptodate(page)) || - (page_offset(page) >= size)) + if ((folio->mapping != inode->i_mapping) || + !folio_test_uptodate(folio) || + (pos >= size)) goto out; /* @@ -103,11 +87,11 @@ static vm_fault_t __ocfs2_page_mkwrite(struct file *file, * worry about ocfs2_write_begin() skipping some buffer reads * because the "write" would invalidate their data. */ - if (page->index == last_index) + if (folio->index == last_index) len = ((size - 1) & ~PAGE_MASK) + 1; err = ocfs2_write_begin_nolock(mapping, pos, len, OCFS2_WRITE_MMAP, - &locked_page, &fsdata, di_bh, page); + &locked_folio, &fsdata, di_bh, folio); if (err) { if (err != -ENOSPC) mlog_errno(err); @@ -115,7 +99,7 @@ static vm_fault_t __ocfs2_page_mkwrite(struct file *file, goto out; } - if (!locked_page) { + if (!locked_folio) { ret = VM_FAULT_NOPAGE; goto out; } @@ -128,7 +112,7 @@ out: static vm_fault_t ocfs2_page_mkwrite(struct vm_fault *vmf) { - struct page *page = vmf->page; + struct folio *folio = page_folio(vmf->page); struct inode *inode = file_inode(vmf->vma->vm_file); struct buffer_head *di_bh = NULL; sigset_t oldset; @@ -157,7 +141,7 @@ static vm_fault_t ocfs2_page_mkwrite(struct vm_fault *vmf) */ down_write(&OCFS2_I(inode)->ip_alloc_sem); - ret = __ocfs2_page_mkwrite(vmf->vma->vm_file, di_bh, page); + ret = __ocfs2_page_mkwrite(vmf->vma->vm_file, di_bh, folio); up_write(&OCFS2_I(inode)->ip_alloc_sem); @@ -175,8 +159,9 @@ static const struct vm_operations_struct ocfs2_file_vm_ops = { .page_mkwrite = ocfs2_page_mkwrite, }; -int ocfs2_mmap(struct file *file, struct vm_area_struct *vma) +int ocfs2_mmap_prepare(struct vm_area_desc *desc) { + struct file *file = desc->file; int ret = 0, lock_level = 0; ret = ocfs2_inode_lock_atime(file_inode(file), @@ -187,7 +172,7 @@ int ocfs2_mmap(struct file *file, struct vm_area_struct *vma) } ocfs2_inode_unlock(file_inode(file), lock_level); out: - vma->vm_ops = &ocfs2_file_vm_ops; + desc->vm_ops = &ocfs2_file_vm_ops; return 0; } |