The patch titled
Subject: fs: remove anon_set_page_dirty()
has been added to the -mm tree. Its filename is
fs-remove-anon_set_page_dirty.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/fs-remove-anon_set_page_dirty.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/fs-remove-anon_set_page_dirty.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: fs: remove anon_set_page_dirty()
Use __set_page_dirty_no_writeback() instead. This will set the dirty bit
on the page, which will be used to avoid calling set_page_dirty() in the
future. It will have no effect on actually writing the page back, as the
pages are not on any LRU lists.
Link: https://lkml.kernel.org/r/20210615162342.1669332-5-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/libfs.c | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)
--- a/fs/libfs.c~fs-remove-anon_set_page_dirty
+++ a/fs/libfs.c
@@ -1217,19 +1217,10 @@ void kfree_link(void *p)
}
EXPORT_SYMBOL(kfree_link);
-/*
- * nop .set_page_dirty method so that people can use .page_mkwrite on
- * anon inodes.
- */
-static int anon_set_page_dirty(struct page *page)
-{
- return 0;
-};
-
struct inode *alloc_anon_inode(struct super_block *s)
{
static const struct address_space_operations anon_aops = {
- .set_page_dirty = anon_set_page_dirty,
+ .set_page_dirty = __set_page_dirty_no_writeback,
};
struct inode *inode = new_inode_pseudo(s);
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
mm-mark-idle-page-tracking-as-broken.patch
writeback-cgroup-release-dying-cgwbs-by-switching-attached-inodes-fix-3.patch
mm-writeback-move-__set_page_dirty-to-core-mm.patch
mm-writeback-use-__set_page_dirty-in-__set_page_dirty_nobuffers.patch
iomap-use-__set_page_dirty_nobuffers.patch
fs-remove-anon_set_page_dirty.patch
fs-remove-noop_set_page_dirty.patch
mm-move-page-dirtying-prototypes-from-mmh.patch
mm-make-__dump_page-static.patch
mm-debug-factor-pagepoisoned-out-of-__dump_page.patch
mm-page_owner-constify-dump_page_owner.patch
mm-make-compound_head-const-preserving.patch
mm-constify-get_pfnblock_flags_mask-and-get_pfnblock_migratetype.patch
mm-constify-page_count-and-page_ref_count.patch
mm-optimise-nth_page-for-contiguous-memmap.patch
mm-hugetlb-free-the-vmemmap-pages-associated-with-each-hugetlb-page-fix.patch
mm-hugetlb-alloc-the-vmemmap-pages-associated-with-each-hugetlb-page-fix-2.patch
mm-thp-fix-strncpy-warning.patch
