[PATCH 5/5] fs: dcache: Revert "manually unpoison dname after allocation to shut up kasan's reports"

From: Andrey Ryabinin
Date: Thu Feb 01 2018 - 13:01:22 EST


This reverts commit df4c0e36f1b1782b0611a77c52cc240e5c4752dd.
It's no longer needed since dentry_string_cmp() now uses read_word_at_a_time()
to avoid kasan's reports.

Signed-off-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
---
fs/dcache.c | 5 -----
1 file changed, 5 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index 195999c8d1b4..b3dc1870caa8 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -37,8 +37,6 @@
#include <linux/prefetch.h>
#include <linux/ratelimit.h>
#include <linux/list_lru.h>
-#include <linux/kasan.h>
-
#include "internal.h"
#include "mount.h"

@@ -1629,9 +1627,6 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
}
atomic_set(&p->u.count, 1);
dname = p->name;
- if (IS_ENABLED(CONFIG_DCACHE_WORD_ACCESS))
- kasan_unpoison_shadow(dname,
- round_up(name->len + 1, sizeof(unsigned long)));
} else {
dname = dentry->d_iname;
}
--
2.13.6