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authorChristoph Hellwig <hch@lst.de>2020-11-16 16:33:37 +0300
committerJens Axboe <axboe@kernel.dk>2020-12-02 00:53:38 +0300
commit5df1a6726973ee2444e11f16daa013971dc52e8b (patch)
treea0f4c09471c688bfaa3e8511cef5b3d521add049 /mm/filemap.c
parent5a20d073ec54a72d9a732fa44bfe14954eb6332f (diff)
downloadlinux-5df1a6726973ee2444e11f16daa013971dc52e8b.tar.xz
filemap: consistently use ->f_mapping over ->i_mapping
Use file->f_mapping in all remaining places that have a struct file available to properly handle the case where inode->i_mapping != file_inode(file)->i_mapping. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'mm/filemap.c')
-rw-r--r--mm/filemap.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index d5e7c2029d16..4f583489aa3c 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2886,14 +2886,14 @@ EXPORT_SYMBOL(filemap_map_pages);
vm_fault_t filemap_page_mkwrite(struct vm_fault *vmf)
{
+ struct address_space *mapping = vmf->vma->vm_file->f_mapping;
struct page *page = vmf->page;
- struct inode *inode = file_inode(vmf->vma->vm_file);
vm_fault_t ret = VM_FAULT_LOCKED;
- sb_start_pagefault(inode->i_sb);
+ sb_start_pagefault(mapping->host->i_sb);
file_update_time(vmf->vma->vm_file);
lock_page(page);
- if (page->mapping != inode->i_mapping) {
+ if (page->mapping != mapping) {
unlock_page(page);
ret = VM_FAULT_NOPAGE;
goto out;
@@ -2906,7 +2906,7 @@ vm_fault_t filemap_page_mkwrite(struct vm_fault *vmf)
set_page_dirty(page);
wait_for_stable_page(page);
out:
- sb_end_pagefault(inode->i_sb);
+ sb_end_pagefault(mapping->host->i_sb);
return ret;
}
@@ -3149,10 +3149,9 @@ void dio_warn_stale_pagecache(struct file *filp)
{
static DEFINE_RATELIMIT_STATE(_rs, 86400 * HZ, DEFAULT_RATELIMIT_BURST);
char pathname[128];
- struct inode *inode = file_inode(filp);
char *path;
- errseq_set(&inode->i_mapping->wb_err, -EIO);
+ errseq_set(&filp->f_mapping->wb_err, -EIO);
if (__ratelimit(&_rs)) {
path = file_path(filp, pathname, sizeof(pathname));
if (IS_ERR(path))
@@ -3179,7 +3178,7 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from)
if (iocb->ki_flags & IOCB_NOWAIT) {
/* If there are pages to writeback, return */
- if (filemap_range_has_page(inode->i_mapping, pos,
+ if (filemap_range_has_page(file->f_mapping, pos,
pos + write_len - 1))
return -EAGAIN;
} else {