From 437dfb201a55ff73954ae7455ef3d17be4b1c0f6 Mon Sep 17 00:00:00 2001 From: Yang Sheng Date: Sun, 1 Feb 2015 21:52:16 -0500 Subject: [PATCH] staging/lustre/llite: Add exception entry check after radix_tree We need to check for an exception entry after radix_tree lookup. Signed-off-by: Yang Sheng Signed-off-by: Oleg Drokin Reviewed-on: http://review.whamcloud.com/10709 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5162 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/llite/dir.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index babba60a88bf..69a4a63e1d8f 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -278,7 +278,7 @@ static struct page *ll_dir_page_locate(struct inode *dir, __u64 *hash, spin_lock_irq(&mapping->tree_lock); found = radix_tree_gang_lookup(&mapping->page_tree, (void **)&page, offset, 1); - if (found > 0) { + if (found > 0 && !radix_tree_exceptional_entry(page)) { struct lu_dirpage *dp; page_cache_get(page); -- 2.20.1