提交 0af57378 编写于 作者: C Christoph Hellwig 提交者: Linus Torvalds

mm: require ->set_page_dirty to be explicitly wired up

Remove the CONFIG_BLOCK default to __set_page_dirty_buffers and just wire
that method up for the missing instances.

[hch@lst.de: ecryptfs: add a ->set_page_dirty cludge]
  Link: https://lkml.kernel.org/r/20210624125250.536369-1-hch@lst.de

Link: https://lkml.kernel.org/r/20210614061512.3966143-4-hch@lst.deSigned-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: NJan Kara <jack@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Tyler Hicks <code@tyhicks.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 c1e3dbe9
......@@ -73,6 +73,7 @@ static sector_t _adfs_bmap(struct address_space *mapping, sector_t block)
}
static const struct address_space_operations adfs_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = adfs_readpage,
.writepage = adfs_writepage,
.write_begin = adfs_write_begin,
......
......@@ -453,6 +453,7 @@ static sector_t _affs_bmap(struct address_space *mapping, sector_t block)
}
const struct address_space_operations affs_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = affs_readpage,
.writepage = affs_writepage,
.write_begin = affs_write_begin,
......@@ -833,6 +834,7 @@ static int affs_write_end_ofs(struct file *file, struct address_space *mapping,
}
const struct address_space_operations affs_aops_ofs = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = affs_readpage_ofs,
//.writepage = affs_writepage_ofs,
.write_begin = affs_write_begin_ofs,
......
......@@ -188,6 +188,7 @@ static sector_t bfs_bmap(struct address_space *mapping, sector_t block)
}
const struct address_space_operations bfs_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = bfs_readpage,
.writepage = bfs_writepage,
.write_begin = bfs_write_begin,
......
......@@ -1754,6 +1754,7 @@ static int blkdev_writepages(struct address_space *mapping,
}
static const struct address_space_operations def_blk_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = blkdev_readpage,
.readahead = blkdev_readahead,
.writepage = blkdev_writepage,
......
......@@ -533,7 +533,20 @@ static sector_t ecryptfs_bmap(struct address_space *mapping, sector_t block)
return block;
}
#include <linux/buffer_head.h>
const struct address_space_operations ecryptfs_aops = {
/*
* XXX: This is pretty broken for multiple reasons: ecryptfs does not
* actually use buffer_heads, and ecryptfs will crash without
* CONFIG_BLOCK. But it matches the behavior before the default for
* address_space_operations without the ->set_page_dirty method was
* cleaned up, so this is the best we can do without maintainer
* feedback.
*/
#ifdef CONFIG_BLOCK
.set_page_dirty = __set_page_dirty_buffers,
#endif
.writepage = ecryptfs_writepage,
.readpage = ecryptfs_readpage,
.write_begin = ecryptfs_write_begin,
......
......@@ -491,6 +491,7 @@ int exfat_block_truncate_page(struct inode *inode, loff_t from)
}
static const struct address_space_operations exfat_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = exfat_readpage,
.readahead = exfat_readahead,
.writepage = exfat_writepage,
......
......@@ -961,6 +961,7 @@ ext2_dax_writepages(struct address_space *mapping, struct writeback_control *wbc
}
const struct address_space_operations ext2_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = ext2_readpage,
.readahead = ext2_readahead,
.writepage = ext2_writepage,
......@@ -975,6 +976,7 @@ const struct address_space_operations ext2_aops = {
};
const struct address_space_operations ext2_nobh_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = ext2_readpage,
.readahead = ext2_readahead,
.writepage = ext2_nobh_writepage,
......
......@@ -342,6 +342,7 @@ int fat_block_truncate_page(struct inode *inode, loff_t from)
}
static const struct address_space_operations fat_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = fat_readpage,
.readahead = fat_readahead,
.writepage = fat_writepage,
......
......@@ -89,11 +89,13 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
}
const struct address_space_operations gfs2_meta_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.writepage = gfs2_aspace_writepage,
.releasepage = gfs2_releasepage,
};
const struct address_space_operations gfs2_rgrp_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.writepage = gfs2_aspace_writepage,
.releasepage = gfs2_releasepage,
};
......
......@@ -159,6 +159,7 @@ static int hfs_writepages(struct address_space *mapping,
}
const struct address_space_operations hfs_btree_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = hfs_readpage,
.writepage = hfs_writepage,
.write_begin = hfs_write_begin,
......@@ -168,6 +169,7 @@ const struct address_space_operations hfs_btree_aops = {
};
const struct address_space_operations hfs_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = hfs_readpage,
.writepage = hfs_writepage,
.write_begin = hfs_write_begin,
......
......@@ -156,6 +156,7 @@ static int hfsplus_writepages(struct address_space *mapping,
}
const struct address_space_operations hfsplus_btree_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = hfsplus_readpage,
.writepage = hfsplus_writepage,
.write_begin = hfsplus_write_begin,
......@@ -165,6 +166,7 @@ const struct address_space_operations hfsplus_btree_aops = {
};
const struct address_space_operations hfsplus_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = hfsplus_readpage,
.writepage = hfsplus_writepage,
.write_begin = hfsplus_write_begin,
......
......@@ -196,6 +196,7 @@ static int hpfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
}
const struct address_space_operations hpfs_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = hpfs_readpage,
.writepage = hpfs_writepage,
.readahead = hpfs_readahead,
......
......@@ -356,6 +356,7 @@ static ssize_t jfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
}
const struct address_space_operations jfs_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = jfs_readpage,
.readahead = jfs_readahead,
.writepage = jfs_writepage,
......
......@@ -442,6 +442,7 @@ static sector_t minix_bmap(struct address_space *mapping, sector_t block)
}
static const struct address_space_operations minix_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = minix_readpage,
.writepage = minix_writepage,
.write_begin = minix_write_begin,
......
......@@ -434,6 +434,7 @@ nilfs_mdt_write_page(struct page *page, struct writeback_control *wbc)
static const struct address_space_operations def_mdt_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.writepage = nilfs_mdt_write_page,
};
......
......@@ -2453,6 +2453,7 @@ static ssize_t ocfs2_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
}
const struct address_space_operations ocfs2_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = ocfs2_readpage,
.readahead = ocfs2_readahead,
.writepage = ocfs2_writepage,
......
......@@ -372,6 +372,7 @@ const struct inode_operations omfs_file_inops = {
};
const struct address_space_operations omfs_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = omfs_readpage,
.readahead = omfs_readahead,
.writepage = omfs_writepage,
......
......@@ -495,6 +495,7 @@ static sector_t sysv_bmap(struct address_space *mapping, sector_t block)
}
const struct address_space_operations sysv_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = sysv_readpage,
.writepage = sysv_writepage,
.write_begin = sysv_write_begin,
......
......@@ -125,6 +125,7 @@ static int udf_adinicb_write_end(struct file *file, struct address_space *mappin
}
const struct address_space_operations udf_adinicb_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = udf_adinicb_readpage,
.writepage = udf_adinicb_writepage,
.write_begin = udf_adinicb_write_begin,
......
......@@ -235,6 +235,7 @@ static sector_t udf_bmap(struct address_space *mapping, sector_t block)
}
const struct address_space_operations udf_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = udf_readpage,
.readahead = udf_readahead,
.writepage = udf_writepage,
......
......@@ -526,6 +526,7 @@ static sector_t ufs_bmap(struct address_space *mapping, sector_t block)
}
const struct address_space_operations ufs_aops = {
.set_page_dirty = __set_page_dirty_buffers,
.readpage = ufs_readpage,
.writepage = ufs_writepage,
.write_begin = ufs_write_begin,
......
......@@ -32,7 +32,6 @@
#include <linux/sysctl.h>
#include <linux/cpu.h>
#include <linux/syscalls.h>
#include <linux/buffer_head.h> /* __set_page_dirty_buffers */
#include <linux/pagevec.h>
#include <linux/timer.h>
#include <linux/sched/rt.h>
......@@ -2555,13 +2554,9 @@ EXPORT_SYMBOL(redirty_page_for_writepage);
/*
* Dirty a page.
*
* For pages with a mapping this should be done under the page lock
* for the benefit of asynchronous memory errors who prefer a consistent
* dirty state. This rule can be broken in some special cases,
* but should be better not to.
*
* If the mapping doesn't provide a set_page_dirty a_op, then
* just fall through and assume that it wants buffer_heads.
* For pages with a mapping this should be done under the page lock for the
* benefit of asynchronous memory errors who prefer a consistent dirty state.
* This rule can be broken in some special cases, but should be better not to.
*/
int set_page_dirty(struct page *page)
{
......@@ -2569,7 +2564,6 @@ int set_page_dirty(struct page *page)
page = compound_head(page);
if (likely(mapping)) {
int (*spd)(struct page *) = mapping->a_ops->set_page_dirty;
/*
* readahead/lru_deactivate_page could remain
* PG_readahead/PG_reclaim due to race with end_page_writeback
......@@ -2582,11 +2576,7 @@ int set_page_dirty(struct page *page)
*/
if (PageReclaim(page))
ClearPageReclaim(page);
#ifdef CONFIG_BLOCK
if (!spd)
spd = __set_page_dirty_buffers;
#endif
return (*spd)(page);
return mapping->a_ops->set_page_dirty(page);
}
if (!PageDirty(page)) {
if (!TestSetPageDirty(page))
......
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