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authorLevin, Alexander (Sasha Levin) <alexander.levin@verizon.com>2017-11-16 02:35:51 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-16 03:21:04 +0100
commit4950276672fce5c241857540f8561c440663673d (patch)
tree014141bd67d83260a5d5de744e5d62a5cbf6c83b /fs/dcache.c
parentmm/rmap.c: remove redundant variable cend (diff)
downloadlinux-4950276672fce5c241857540f8561c440663673d.tar.xz
linux-4950276672fce5c241857540f8561c440663673d.zip
kmemcheck: remove annotations
Patch series "kmemcheck: kill kmemcheck", v2. As discussed at LSF/MM, kill kmemcheck. KASan is a replacement that is able to work without the limitation of kmemcheck (single CPU, slow). KASan is already upstream. We are also not aware of any users of kmemcheck (or users who don't consider KASan as a suitable replacement). The only objection was that since KASAN wasn't supported by all GCC versions provided by distros at that time we should hold off for 2 years, and try again. Now that 2 years have passed, and all distros provide gcc that supports KASAN, kill kmemcheck again for the very same reasons. This patch (of 4): Remove kmemcheck annotations, and calls to kmemcheck from the kernel. [alexander.levin@verizon.com: correctly remove kmemcheck call from dma_map_sg_attrs] Link: http://lkml.kernel.org/r/20171012192151.26531-1-alexander.levin@verizon.com Link: http://lkml.kernel.org/r/20171007030159.22241-2-alexander.levin@verizon.com Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Alexander Potapenko <glider@google.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tim Hansen <devtimhansen@gmail.com> Cc: Vegard Nossum <vegardno@ifi.uio.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/dcache.c')
-rw-r--r--fs/dcache.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/dcache.c b/fs/dcache.c
index bcc9f6981569..5c7df1df81ff 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2705,8 +2705,6 @@ static void swap_names(struct dentry *dentry, struct dentry *target)
*/
unsigned int i;
BUILD_BUG_ON(!IS_ALIGNED(DNAME_INLINE_LEN, sizeof(long)));
- kmemcheck_mark_initialized(dentry->d_iname, DNAME_INLINE_LEN);
- kmemcheck_mark_initialized(target->d_iname, DNAME_INLINE_LEN);
for (i = 0; i < DNAME_INLINE_LEN / sizeof(long); i++) {
swap(((long *) &dentry->d_iname)[i],
((long *) &target->d_iname)[i]);