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From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>,
	"Aneesh Kumar K . V" <aneesh.kumar@linux.vnet.ibm.com>,
	Christophe Leroy <christophe.leroy@c-s.fr>
Subject: [PATCH 03/10] powerpc/mm/slice: tidy lpsizes and hpsizes update loops
Date: Tue,  6 Mar 2018 23:25:00 +1000	[thread overview]
Message-ID: <20180306132507.10649-4-npiggin@gmail.com> (raw)
In-Reply-To: <20180306132507.10649-1-npiggin@gmail.com>

Make these loops look the same, and change their form so the
important part is not wrapped over so many lines.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 arch/powerpc/mm/slice.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index af4351b15d01..9625ceb35685 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -232,22 +232,24 @@ static void slice_convert(struct mm_struct *mm, struct slice_mask mask, int psiz
 	spin_lock_irqsave(&slice_convert_lock, flags);
 
 	lpsizes = mm->context.low_slices_psize;
-	for (i = 0; i < SLICE_NUM_LOW; i++)
-		if (mask.low_slices & (1u << i)) {
-			mask_index = i & 0x1;
-			index = i >> 1;
-			lpsizes[index] = (lpsizes[index] &
-					  ~(0xf << (mask_index * 4))) |
+	for (i = 0; i < SLICE_NUM_LOW; i++) {
+		if (!(mask.low_slices & (1u << i)))
+			continue;
+
+		mask_index = i & 0x1;
+		index = i >> 1;
+		lpsizes[index] = (lpsizes[index] & ~(0xf << (mask_index * 4))) |
 				(((unsigned long)psize) << (mask_index * 4));
-		}
+	}
 
 	hpsizes = mm->context.high_slices_psize;
 	for (i = 0; i < GET_HIGH_SLICE_INDEX(mm->context.slb_addr_limit); i++) {
+		if (!test_bit(i, mask.high_slices))
+			continue;
+
 		mask_index = i & 0x1;
 		index = i >> 1;
-		if (test_bit(i, mask.high_slices))
-			hpsizes[index] = (hpsizes[index] &
-					  ~(0xf << (mask_index * 4))) |
+		hpsizes[index] = (hpsizes[index] & ~(0xf << (mask_index * 4))) |
 				(((unsigned long)psize) << (mask_index * 4));
 	}
 
-- 
2.16.1

  parent reply	other threads:[~2018-03-06 13:25 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-06 13:24 [PATCH 00/10] powerpc/mm/slice: improve slice speed and stack use Nicholas Piggin
2018-03-06 13:24 ` [PATCH 01/10] selftests/powerpc: add process creation benchmark Nicholas Piggin
2018-03-19 22:23   ` [01/10] " Michael Ellerman
2018-03-20 10:15   ` Michael Ellerman
2018-03-06 13:24 ` [PATCH 02/10] powerpc/mm/slice: Simplify and optimise slice context initialisation Nicholas Piggin
2018-03-06 14:32   ` Nicholas Piggin
2018-03-06 13:25 ` Nicholas Piggin [this message]
2018-03-06 13:25 ` [PATCH 04/10] powerpc/mm/slice: pass pointers to struct slice_mask where possible Nicholas Piggin
2018-03-06 13:43   ` Christophe LEROY
2018-03-06 13:59     ` Nicholas Piggin
2018-03-06 13:25 ` [PATCH 05/10] powerpc/mm/slice: implement a slice mask cache Nicholas Piggin
2018-03-06 13:49   ` Christophe LEROY
2018-03-06 14:01     ` Nicholas Piggin
2018-03-06 13:25 ` [PATCH 06/10] powerpc/mm/slice: implement slice_check_range_fits Nicholas Piggin
2018-03-06 14:41   ` Christophe LEROY
2018-03-06 23:12     ` Nicholas Piggin
2018-03-07  6:12       ` Christophe LEROY
2018-03-07  7:16         ` Nicholas Piggin
2018-03-07 13:38           ` Christophe LEROY
2018-03-06 13:25 ` [PATCH 07/10] powerpc/mm/slice: Switch to 3-operand slice bitops helpers Nicholas Piggin
2018-03-06 14:44   ` Christophe LEROY
2018-03-06 23:19     ` Nicholas Piggin
2018-03-06 13:25 ` [PATCH 08/10] powerpc/mm/slice: Use const pointers to cached slice masks where possible Nicholas Piggin
2018-03-06 14:55   ` Christophe LEROY
2018-03-06 23:33     ` Nicholas Piggin
2018-03-06 13:25 ` [PATCH 09/10] powerpc/mm/slice: use the dynamic high slice size to limit bitmap operations Nicholas Piggin
2018-03-06 15:02   ` Christophe LEROY
2018-03-06 23:32     ` Nicholas Piggin
2018-03-06 13:25 ` [PATCH 10/10] powerpc/mm/slice: remove radix calls to the slice code Nicholas Piggin
2018-03-06 15:12   ` Christophe LEROY
2018-03-06 23:35     ` Nicholas Piggin

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