From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Linux Memory Management <linux-mm@kvack.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH 10/12] get_unmapped_area handles MAP_FIXED in hugetlbfs
Date: Thu, 12 Apr 2007 12:20:32 +1000 [thread overview]
Message-ID: <20070412022034.4A229DDF30@ozlabs.org> (raw)
In-Reply-To: <1176344427.242579.337989891532.qpush@grosgo>
Generic hugetlb_get_unmapped_area() now handles MAP_FIXED by just
calling prepare_hugepage_range()
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
fs/hugetlbfs/inode.c | 6 ++++++
1 file changed, 6 insertions(+)
Index: linux-cell/fs/hugetlbfs/inode.c
===================================================================
--- linux-cell.orig/fs/hugetlbfs/inode.c 2007-03-22 16:12:56.000000000 +1100
+++ linux-cell/fs/hugetlbfs/inode.c 2007-03-22 16:16:02.000000000 +1100
@@ -115,6 +115,12 @@ hugetlb_get_unmapped_area(struct file *f
if (len > TASK_SIZE)
return -ENOMEM;
+ if (flags & MAP_FIXED) {
+ if (prepare_hugepage_range(addr, len, pgoff))
+ return -EINVAL;
+ return addr;
+ }
+
if (addr) {
addr = ALIGN(addr, HPAGE_SIZE);
vma = find_vma(mm, addr);
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Linux Memory Management <linux-mm@kvack.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH 10/12] get_unmapped_area handles MAP_FIXED in hugetlbfs
Date: Thu, 12 Apr 2007 12:20:32 +1000 [thread overview]
Message-ID: <20070412022034.4A229DDF30@ozlabs.org> (raw)
In-Reply-To: <1176344427.242579.337989891532.qpush@grosgo>
Generic hugetlb_get_unmapped_area() now handles MAP_FIXED by just
calling prepare_hugepage_range()
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
fs/hugetlbfs/inode.c | 6 ++++++
1 file changed, 6 insertions(+)
Index: linux-cell/fs/hugetlbfs/inode.c
===================================================================
--- linux-cell.orig/fs/hugetlbfs/inode.c 2007-03-22 16:12:56.000000000 +1100
+++ linux-cell/fs/hugetlbfs/inode.c 2007-03-22 16:16:02.000000000 +1100
@@ -115,6 +115,12 @@ hugetlb_get_unmapped_area(struct file *f
if (len > TASK_SIZE)
return -ENOMEM;
+ if (flags & MAP_FIXED) {
+ if (prepare_hugepage_range(addr, len, pgoff))
+ return -EINVAL;
+ return addr;
+ }
+
if (addr) {
addr = ALIGN(addr, HPAGE_SIZE);
vma = find_vma(mm, addr);
--
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next prev parent reply other threads:[~2007-04-12 2:21 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-12 2:20 [PATCH 0/12] Pass MAP_FIXED down to get_unmapped_area Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 2:20 ` [PATCH 1/12] get_unmapped_area handles MAP_FIXED on powerpc Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 22:27 ` William Lee Irwin III
2007-04-12 22:27 ` William Lee Irwin III
2007-04-12 2:20 ` [PATCH 3/12] get_unmapped_area handles MAP_FIXED on arm Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 2:20 ` [PATCH 2/12] get_unmapped_area handles MAP_FIXED on alpha Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 2:20 ` [PATCH 4/12] get_unmapped_area handles MAP_FIXED on frv Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 2:20 ` [PATCH 5/12] get_unmapped_area handles MAP_FIXED on i386 Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 22:28 ` William Lee Irwin III
2007-04-12 22:28 ` William Lee Irwin III
2007-04-12 2:20 ` [PATCH 6/12] get_unmapped_area handles MAP_FIXED on ia64 Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 22:29 ` William Lee Irwin III
2007-04-12 22:29 ` William Lee Irwin III
2007-04-12 2:20 ` [PATCH 7/12] get_unmapped_area handles MAP_FIXED on parisc Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 2:20 ` [PATCH 9/12] get_unmapped_area handles MAP_FIXED on x86_64 Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 2:20 ` [PATCH 8/12] get_unmapped_area handles MAP_FIXED on sparc64 Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 22:30 ` William Lee Irwin III
2007-04-12 22:30 ` William Lee Irwin III
2007-04-12 2:20 ` [PATCH 11/12] get_unmapped_area handles MAP_FIXED in generic code Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt [this message]
2007-04-12 2:20 ` [PATCH 10/12] get_unmapped_area handles MAP_FIXED in hugetlbfs Benjamin Herrenschmidt
2007-04-12 22:31 ` William Lee Irwin III
2007-04-12 22:31 ` William Lee Irwin III
2007-04-12 2:20 ` [PATCH 12/12] get_unmapped_area doesn't need hugetlbfs hacks anymore Benjamin Herrenschmidt
2007-04-12 2:20 ` Benjamin Herrenschmidt
2007-04-12 22:32 ` William Lee Irwin III
2007-04-12 22:32 ` William Lee Irwin III
2007-04-12 2:56 ` [PATCH 0/12] Pass MAP_FIXED down to get_unmapped_area Wu, Bryan
2007-04-12 2:56 ` Wu, Bryan
2007-04-12 2:56 ` Benjamin Herrenschmidt
2007-04-12 2:56 ` Benjamin Herrenschmidt
-- strict thread matches above, loose matches on Subject: below --
2007-04-24 5:33 Benjamin Herrenschmidt
2007-04-24 5:33 ` [PATCH 10/12] get_unmapped_area handles MAP_FIXED in hugetlbfs Benjamin Herrenschmidt
2007-04-24 5:33 ` Benjamin Herrenschmidt
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