[tip:locking/core] tools/memory-model: Update required version of herdtools7

[tip-bot for Akira Yokosawa]

Commit-ID:  5b62832c1e5284030500f82d6b3579ceed399fe6
Gitweb:     https://git.kernel.org/tip/5b62832c1e5284030500f82d6b3579ceed399fe6
Author:     Akira Yokosawa <akiyks@xxxxxxxxx>
AuthorDate: Mon, 14 May 2018 16:33:41 -0700
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Tue, 15 May 2018 08:11:16 +0200

tools/memory-model: Update required version of herdtools7

Code generated by klitmus7 version 7.48 doesn't compile with kernel
header of 4.15 and later due to the absence of ACCESS_ONCE().
As the issue has been resolved in herdtools7 7.49, bump the required
version number in README.

Signed-off-by: Akira Yokosawa <akiyks@xxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Cc: Andrea Parri <parri.andrea@xxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Boqun Feng <boqun.feng@xxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Jade Alglave <j.alglave@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Luc Maranget <luc.maranget@xxxxxxxx>
Cc: Nicholas Piggin <npiggin@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: linux-arch@xxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/1526340837-12222-3-git-send-email-paulmck@xxxxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 tools/memory-model/README | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/memory-model/README b/tools/memory-model/README
index 0b3a5f3c9ccd..734f7feaa5dc 100644
--- a/tools/memory-model/README
+++ b/tools/memory-model/README
@@ -20,7 +20,7 @@ that litmus test to be exercised within the Linux kernel.
 REQUIREMENTS
 ============
 
-Version 7.48 of the "herd7" and "klitmus7" tools must be downloaded
+Version 7.49 of the "herd7" and "klitmus7" tools must be downloaded
 separately:
 
   https://github.com/herd/herdtools7