Commit 437dfb20 authored Feb 01, 2015 by Yang Sheng Committed by Greg Kroah-Hartman Feb 07, 2015

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 <yang.sheng@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Reviewed-on: http://review.whamcloud.com/10709
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5162


Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 7dd1107a

drivers/staging/lustre/lustre/llite/dir.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);

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