From: Nadav Amit <namit@vmware.com>
To: Arnd Bergmann <arnd@arndb.de>, <gregkh@linuxfoundation.org>
Cc: Xavier Deguillard <xdeguillard@vmware.com>,
<linux-kernel@vger.kernel.org>, Nadav Amit <namit@vmware.com>
Subject: [PATCH v3 08/20] vmw_balloon: rename VMW_BALLOON_2M_SHIFT to VMW_BALLOON_2M_ORDER
Date: Wed, 26 Sep 2018 12:13:24 -0700 [thread overview]
Message-ID: <20180926191336.101885-9-namit@vmware.com> (raw)
In-Reply-To: <20180926191336.101885-1-namit@vmware.com>
The name of the macro'd VMW_BALLOON_2M_SHIFT is misleading. The value
reflects 2M huge-page order. Unfortunately, we cannot use
HPAGE_PMD_ORDER, since it is not defined when transparent huge-pages are
off, so we need to define our own one.
Rename it to VMW_BALLOON_2M_ORDER. No functional change.
Signed-off-by: Nadav Amit <namit@vmware.com>
---
drivers/misc/vmw_balloon.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/misc/vmw_balloon.c b/drivers/misc/vmw_balloon.c
index 4e067d269706..626abe65eddb 100644
--- a/drivers/misc/vmw_balloon.c
+++ b/drivers/misc/vmw_balloon.c
@@ -77,7 +77,7 @@ enum vmwballoon_capabilities {
| VMW_BALLOON_BATCHED_2M_CMDS \
| VMW_BALLOON_SIGNALLED_WAKEUP_CMD)
-#define VMW_BALLOON_2M_SHIFT (9)
+#define VMW_BALLOON_2M_ORDER (PMD_SHIFT - PAGE_SHIFT)
#define VMW_BALLOON_NUM_PAGE_SIZES (2)
/*
@@ -348,7 +348,7 @@ static bool vmballoon_send_guest_id(struct vmballoon *b)
static u16 vmballoon_page_size(bool is_2m_page)
{
if (is_2m_page)
- return 1 << VMW_BALLOON_2M_SHIFT;
+ return 1 << VMW_BALLOON_2M_ORDER;
return 1;
}
@@ -387,7 +387,7 @@ static struct page *vmballoon_alloc_page(bool is_2m_page)
{
if (is_2m_page)
return alloc_pages(VMW_HUGE_PAGE_ALLOC_FLAGS,
- VMW_BALLOON_2M_SHIFT);
+ VMW_BALLOON_2M_ORDER);
return alloc_page(VMW_PAGE_ALLOC_FLAGS);
}
@@ -395,7 +395,7 @@ static struct page *vmballoon_alloc_page(bool is_2m_page)
static void vmballoon_free_page(struct page *page, bool is_2m_page)
{
if (is_2m_page)
- __free_pages(page, VMW_BALLOON_2M_SHIFT);
+ __free_pages(page, VMW_BALLOON_2M_ORDER);
else
__free_page(page);
}
--
2.17.1
next prev parent reply other threads:[~2018-09-26 19:15 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-26 19:13 [PATCH v3 00/20] vmw_balloon: compaction, shrinker, 64-bit, etc Nadav Amit
2018-09-26 19:13 ` [PATCH v3 01/20] vmw_balloon: handle commands in a single function Nadav Amit
2018-09-26 19:13 ` [PATCH v3 02/20] vmw_balloon: unify commands tracing and stats Nadav Amit
2018-09-26 19:13 ` [PATCH v3 03/20] vmw_balloon: merge send_lock and send_unlock path Nadav Amit
2018-09-26 19:13 ` [PATCH v3 04/20] vmw_balloon: simplifying batch access Nadav Amit
2018-09-26 19:13 ` [PATCH v3 05/20] vmw_balloon: remove sleeping allocations Nadav Amit
2018-09-26 19:13 ` [PATCH v3 06/20] vmw_balloon: change batch/single lock abstractions Nadav Amit
2018-09-26 19:13 ` [PATCH v3 07/20] vmw_balloon: treat all refused pages equally Nadav Amit
2018-09-26 19:13 ` Nadav Amit [this message]
2018-09-26 19:13 ` [PATCH v3 09/20] vmw_balloon: refactor change size from vmballoon_work Nadav Amit
2018-09-26 19:13 ` [PATCH v3 10/20] vmw_balloon: simplify vmballoon_send_get_target() Nadav Amit
2018-09-26 19:13 ` [PATCH v3 11/20] vmw_balloon: stats rework Nadav Amit
2018-09-26 19:13 ` [PATCH v3 12/20] vmw_balloon: rework the inflate and deflate loops Nadav Amit
2018-09-26 19:13 ` [PATCH v3 13/20] vmw_balloon: general style cleanup Nadav Amit
2018-09-26 19:13 ` [PATCH v3 14/20] vmw_balloon: add reset stat Nadav Amit
2018-09-26 19:13 ` [PATCH v3 15/20] mm/balloon_compaction: suppress allocation warnings Nadav Amit
2018-09-26 19:13 ` [PATCH v3 16/20] mm/balloon_compaction: list interfaces Nadav Amit
2018-09-28 19:48 ` Nadav Amit
2018-10-17 2:42 ` Nadav Amit
2018-09-26 19:13 ` [PATCH v3 17/20] vmw_balloon: compaction support Nadav Amit
2018-09-26 19:13 ` [PATCH v3 18/20] vmw_balloon: support 64-bit memory limit Nadav Amit
2018-09-26 19:13 ` [PATCH v3 19/20] vmw_balloon: memory shrinker Nadav Amit
2018-09-26 19:13 ` [PATCH v3 20/20] vmw_balloon: split refused pages Nadav Amit
2018-10-30 16:32 ` [PATCH v3 00/20] vmw_balloon: compaction, shrinker, 64-bit, etc Nadav Amit
2018-10-30 16:51 ` gregkh
2018-10-30 16:52 ` Nadav Amit
2018-10-30 17:05 ` gregkh
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