From: Hugh Dickins <hugh@veritas.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>,
Russell King <rmk@arm.linux.org.uk>,
David Howells <dhowells@redhat.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 2/6] freepgt2: sys_mincore ignore FIRST_USER_PGD_NR
Date: Thu, 7 Apr 2005 02:13:10 +0100 (BST) [thread overview]
Message-ID: <Pine.LNX.4.61.0504070210430.24723@goblin.wat.veritas.com> (raw)
In-Reply-To: <Pine.LNX.4.61.0504070204390.24723@goblin.wat.veritas.com>
Remove use of FIRST_USER_PGD_NR from sys_mincore: it's inconsistent (no
other syscall refers to it), unnecessary (sys_mincore loops over vmas
further down) and incorrect (misses user addresses in ARM's first pgd).
Signed-off-by: Hugh Dickins <hugh@veritas.com>
---
mm/mincore.c | 3 ---
1 files changed, 3 deletions(-)
--- 2.6.12-rc2-mm1/mm/mincore.c 2005-04-05 15:21:02.000000000 +0100
+++ linux/mm/mincore.c 2005-04-05 18:59:01.000000000 +0100
@@ -118,9 +118,6 @@ asmlinkage long sys_mincore(unsigned lon
if (start & ~PAGE_CACHE_MASK)
goto einval;
- if (start < FIRST_USER_PGD_NR * PGDIR_SIZE)
- goto enomem;
-
limit = TASK_SIZE;
if (start >= limit)
goto enomem;
next prev parent reply other threads:[~2005-04-07 1:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-07 1:10 [PATCH 1/6] freepgt2: free_pgtables from FIRST_USER_ADDRESS Hugh Dickins
2005-04-07 1:13 ` Hugh Dickins [this message]
2005-04-07 1:14 ` [PATCH 3/6] freepgt2: arm FIRST_USER_ADDRESS PAGE_SIZE Hugh Dickins
2005-04-07 1:16 ` [PATCH 4/6] freepgt2: arm26 " Hugh Dickins
2005-04-07 2:22 ` Ian Molton
2005-04-07 1:18 ` [PATCH 5/6] freepgt2: arch FIRST_USER_ADDRESS 0 Hugh Dickins
2005-04-07 1:19 ` [PATCH 6/6] freepgt2: remove FIRST_USER_ADDRESS hack Hugh Dickins
2005-04-07 10:14 ` [PATCH 2/6] freepgt2: sys_mincore ignore FIRST_USER_PGD_NR David Howells
2005-04-07 14:31 ` Nick Piggin
2005-04-08 3:40 ` Hugh Dickins
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