From: Arun Sharma <arun.sharma@intel.com>
To: linux-ia64@vger.kernel.org
Subject: IA-32 support patch: mmap should return ENOMEM
Date: Tue, 24 Jun 2003 22:21:56 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105649349511116@msgid-missing> (raw)
[-- Attachment #1: Type: text/plain, Size: 271 bytes --]
Single Unix Specification says:
[ENOMEM] MAP_FIXED was specified, and the range [addr, addr + len) exceeds that allowed for the address space of a process.
Therefore if addr + len > IA32_PAGE_OFFSET, we should return ENOMEM.
Please apply to both 2.4 and 2.5.
-Arun
[-- Attachment #2: mmap-enomem.24.txt --]
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--- linux/arch/ia64/ia32/sys_ia32.c- 2003-05-27 18:49:43.000000000 -0700
+++ linux/arch/ia64/ia32/sys_ia32.c 2003-05-28 23:37:02.000000000 -0700
@@ -448,7 +448,12 @@
return addr;
if (len > IA32_PAGE_OFFSET || addr > IA32_PAGE_OFFSET - len)
+ {
+ if (flags & MAP_FIXED)
+ return -ENOMEM;
+ else
return -EINVAL;
+ }
if (OFFSET4K(offset))
return -EINVAL;
next reply other threads:[~2003-06-24 22:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-24 22:21 Arun Sharma [this message]
2003-06-30 16:30 ` IA-32 support patch: mmap should return ENOMEM Bjorn Helgaas
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