From: Chris Metcalf <cmetcalf@tilera.com>
Date: Mon, 4 Mar 2013 16:19:09 +0000 (-0500)
Subject: tile: work around bug in the generic sys_llseek
X-Git-Tag: v3.9-rc2~8^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a114b98661e3aaa0ac085eb931584dce3b0ef9b;p=pandora-kernel.git

tile: work around bug in the generic sys_llseek

sys_llseek should specify the high and low 32-bit seek values as "unsigned
int" but instead it specifies "unsigned long".  Since compat syscall
arguments are always sign-extended on tile, this means that a seek value
of 0xffffffff will be incorrectly interpreted as a value of -1ULL.

To avoid the risk of breaking binary compatibility on architectures
that already use sys_llseek this way, we follow the same path as MIPS
and provide a wrapper override.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: stable@kernel.org [v3.6 onwards]
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