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| author | David Howells <dhowells@redhat.com> | 2007-05-09 13:42:20 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-09 13:04:03 -0700 |
| commit | c855ff3718e5f667b463b20b9de516b4cd7625ad (patch) | |
| tree | 5f5f2db132c80705db2254fc8f2f222160228aa5 /mm/filemap.c | |
| parent | aabded9c3aab5160ae2ca3dd1fa0fa37f3d510e4 (diff) | |
| download | lwn-c855ff3718e5f667b463b20b9de516b4cd7625ad.tar.gz lwn-c855ff3718e5f667b463b20b9de516b4cd7625ad.zip | |
Fix a bad error case handling in read_cache_page_async()
Commit 6fe6900e1e5b6fa9e5c59aa5061f244fe3f467e2 introduced a nasty bug
in read_cache_page_async().
It added a "mark_page_accessed(page)" at the final return path in
read_cache_page_async(). But in error cases, 'page' holds the error
code, and you can't mark it accessed.
[ and Glauber de Oliveira Costa points out that we can use a return
instead of adding more goto's ]
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 9e56fd158fa3..7b48b2ad00e7 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1784,7 +1784,7 @@ struct page *read_cache_page_async(struct address_space *mapping, retry: page = __read_cache_page(mapping, index, filler, data); if (IS_ERR(page)) - goto out; + return page; mark_page_accessed(page); if (PageUptodate(page)) goto out; @@ -1802,9 +1802,9 @@ retry: err = filler(data, page); if (err < 0) { page_cache_release(page); - page = ERR_PTR(err); + return ERR_PTR(err); } - out: +out: mark_page_accessed(page); return page; } |