Commit 56ae414e authored Apr 10, 2017 by Alexander Levin Committed by Linus Torvalds Oct 11, 2017

9p: set page uptodate when required in write_end()



Commit 77469c3f prevented setting the page as uptodate when we wrote
the right amount of data, fix that.

Fixes: 77469c3f ("9p: saner ->write_end() on failing copy into non-uptodate page")
Reviewed-by: Jan Kara <jack@suse.com>
Signed-off-by: Alexander Levin <alexander.levin@verizon.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent a0db2890

fs/9p/vfs_addr.c

+7 −3

Original line number	Diff line number	Diff line
		@@ -310,9 +310,13 @@ static int v9fs_write_end(struct file filp, struct address_space mapping,

		p9_debug(P9_DEBUG_VFS, "filp %p, mapping %p\n", filp, mapping);

		if (unlikely(copied < len && !PageUptodate(page))) {
		if (!PageUptodate(page)) {
		if (unlikely(copied < len)) {
		copied = 0;
		goto out;
		} else if (len == PAGE_SIZE) {
		SetPageUptodate(page);
		}
		}
		/*
		* No need to use i_size_read() here, the i_size