linux-parisc.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Helge Deller <deller@gmx.de>
To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	John David Anglin <dave.anglin@bell.net>
Subject: [PATCH] parisc: Add MAP_UNINITIALIZED define
Date: Sat, 10 Oct 2020 23:54:31 +0200	[thread overview]
Message-ID: <20201010215431.GA30936@ls3530.fritz.box> (raw)

Define MAP_UNINITIALIZED and use same value as other architectures.
Fixes build of debian foot package.

Suggested-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 6fd8871e4081..d828b293b6de 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -25,6 +25,8 @@
 #define MAP_STACK	0x40000		/* give out an address that is best suited for process/thread stacks */
 #define MAP_HUGETLB	0x80000		/* create a huge page mapping */
 #define MAP_FIXED_NOREPLACE 0x100000	/* MAP_FIXED which doesn't unmap underlying mapping */
+#define MAP_UNINITIALIZED 0x4000000	/* For anonymous mmap, memory could be
+					 * uninitialized */

 #define MS_SYNC		1		/* synchronous memory sync */
 #define MS_ASYNC	2		/* sync memory asynchronously */
diff --git a/tools/arch/parisc/include/uapi/asm/mman.h b/tools/arch/parisc/include/uapi/asm/mman.h
index f9fd1325f5bd..c7af0f2292fc 100644
--- a/tools/arch/parisc/include/uapi/asm/mman.h
+++ b/tools/arch/parisc/include/uapi/asm/mman.h
@@ -39,6 +39,5 @@
 #define MADV_SOFT_OFFLINE 101
 /* MAP_32BIT is undefined on parisc, fix it for perf */
 #define MAP_32BIT	0
-/* MAP_UNINITIALIZED is undefined on parisc, fix it for perf */
-#define MAP_UNINITIALIZED	0
+#define MAP_UNINITIALIZED 0x4000000
 #endif

             reply	other threads:[~2020-10-10 23:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-10 21:54 Helge Deller [this message]
2020-10-11 11:56 ` [PATCH] parisc: Add MAP_UNINITIALIZED define Helge Deller
2020-10-11 13:21   ` John David Anglin
2020-10-12  6:50 ` PATCH v2] " Helge Deller
2020-10-12  8:24   ` Rolf Eike Beer
2020-10-12  8:51     ` Helge Deller

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20201010215431.GA30936@ls3530.fritz.box \
    --to=deller@gmx.de \
    --cc=James.Bottomley@hansenpartnership.com \
    --cc=dave.anglin@bell.net \
    --cc=linux-parisc@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).