From: Joern Engel <joern@logfs.org>
Date: Wed, 17 Mar 2010 15:00:07 +0000 (+0100)
Subject: Prevent schedule while atomic in __logfs_readdir
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=e326068806ee044cc617b1dc24be1293fca3fbf6;p=openwrt%2Fstaging%2Fblogic.git

Prevent schedule while atomic in __logfs_readdir

Apparently filldir can sleep, which forbids kmap_atomic.

Signed-off-by: Joern Engel <joern@logfs.org>
---

diff --git a/fs/logfs/dir.c b/fs/logfs/dir.c
index 56a8bfbb0120..c76b4b5c7ff6 100644
--- a/fs/logfs/dir.c
+++ b/fs/logfs/dir.c
@@ -303,12 +303,12 @@ static int __logfs_readdir(struct file *file, void *buf, filldir_t filldir)
 				(filler_t *)logfs_readpage, NULL);
 		if (IS_ERR(page))
 			return PTR_ERR(page);
-		dd = kmap_atomic(page, KM_USER0);
+		dd = kmap(page);
 		BUG_ON(dd->namelen == 0);
 
 		full = filldir(buf, (char *)dd->name, be16_to_cpu(dd->namelen),
 				pos, be64_to_cpu(dd->ino), dd->type);
-		kunmap_atomic(dd, KM_USER0);
+		kunmap(page);
 		page_cache_release(page);
 		if (full)
 			break;