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ceph: remove bogus checks and WARN_ONs from ceph_set_page_dirty

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The checks for page->mapping are odd, as set_page_dirty is an
address_space operation, and I don't see where it would be called on a
non-pagecache page.

The warning about the page lock also seems bogus.  The comment over
set_page_dirty() says that it can be called without the page lock in
some rare cases. I don't think we want to warn if that's the case.

Reported-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Jeff Layton 2021-05-04 10:08:30 -04:00 committed by Ilya Dryomov
parent 62fb9874f5
commit 22d41cdcd3
1 changed files with 1 additions and 9 deletions
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10
fs/ceph/addr.c
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@ -82,10 +82,6 @@ static int ceph_set_page_dirty(struct page *page)
struct inode *inode;
struct ceph_inode_info *ci;
struct ceph_snap_context *snapc;
int ret;
if (unlikely(!mapping))
return !TestSetPageDirty(page);
if (PageDirty(page)) {
dout("%p set_page_dirty %p idx %lu -- already dirty\n",
@ -130,11 +126,7 @@ static int ceph_set_page_dirty(struct page *page)
BUG_ON(PagePrivate(page));
attach_page_private(page, snapc);
ret = __set_page_dirty_nobuffers(page);
WARN_ON(!PageLocked(page));
WARN_ON(!page->mapping);
return ret;
return __set_page_dirty_nobuffers(page);
}
/*