3.2-stable review patch. If anyone has any objections, please let me know.
------------------ From: Eric Sandeen <[email protected]> commit 66bea92c69477a75a5d37b9bfed5773c92a3c4b4 upstream. ext4_da_block_invalidatepages is missing a pagevec_init(), which means that pvec->cold contains random garbage. This affects whether the page goes to the front or back of the LRU when ->cold makes it to free_hot_cold_page() Reviewed-by: Lukas Czerner <[email protected]> Reviewed-by: Carlos Maiolino <[email protected]> Signed-off-by: Eric Sandeen <[email protected]> Signed-off-by: "Theodore Ts'o" <[email protected]> [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings <[email protected]> --- fs/ext4/inode.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1422,6 +1422,7 @@ static void ext4_da_block_invalidatepage index = mpd->first_page; end = mpd->next_page - 1; + pagevec_init(&pvec, 0); while (index <= end) { nr_pages = pagevec_lookup(&pvec, mapping, index, PAGEVEC_SIZE); if (nr_pages == 0) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
