linux-kernel - [PATCH 3.10 01/16] Revert "powerpc/tm: Always reclaim in start

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Message-Id: <1476917380-28311-2-git-send-email-w@1wt.eu>
Date:   Thu, 20 Oct 2016 00:49:25 +0200
From:   Willy Tarreau <w@....eu>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Willy Tarreau <w@....eu>, Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH 3.10 01/16] Revert "powerpc/tm: Always reclaim in start_thread() for exec() class syscalls"

This reverts commit 8110080dc53335d5dd99b123144a6174f19ffc65.

Guenter noticed that this breaks PPC build when CONFIG_PPC_TRANSACTIONAL_MEM
is set, because this patch was not for 3.10.

Cc: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Willy Tarreau <w@....eu>
---
 arch/powerpc/kernel/process.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index a5e339806..d55357e 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1088,16 +1088,6 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
 		current->thread.regs = regs - 1;
 	}
 
-#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-	/*
-	 * Clear any transactional state, we're exec()ing. The cause is
-	 * not important as there will never be a recheckpoint so it's not
-	 * user visible.
-	 */
-	if (MSR_TM_SUSPENDED(mfmsr()))
-		tm_reclaim_current(0);
-#endif
-
 	memset(regs->gpr, 0, sizeof(regs->gpr));
 	regs->ctr = 0;
 	regs->link = 0;
-- 
2.8.0.rc2.1.gbe9624a