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authorDavid Howells <dhowells@redhat.com>2009-04-03 16:42:35 +0100
committerDavid Howells <dhowells@redhat.com>2009-04-03 16:42:35 +0100
commit03fb3d2af96c2783c3a5bc03f3d984cf422f0e69 (patch)
tree6618f82f8be26ba2c7ac38d6e6e16befc8e1140f /mm/filemap.c
parent8f0aa2f25b31ba27db84259141e52ee6ec0d2820 (diff)
downloadconfigs-03fb3d2af96c2783c3a5bc03f3d984cf422f0e69.tar.gz
FS-Cache: Release page->private after failed readahead
The attached patch causes read_cache_pages() to release page-private data on a page for which add_to_page_cache() fails. If the filler function fails, then the problematic page is left attached to the pagecache (with appropriate flags set, one presumes) and the remaining to-be-attached pages are invalidated and discarded. This permits pages with caching references associated with them to be cleaned up. The invalidatepage() address space op is called (indirectly) to do the honours. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Rik van Riel <riel@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
Diffstat (limited to 'mm/filemap.c')
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