path: root/arch/arm/kernel/entry-common.S
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authorNicolas Pitre <nico@cam.org>2006-01-14 16:35:03 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-01-14 16:35:03 +0000
commit713c481519f19df9e6d90f257e7da0336b057592 (patch)
treeb8242d9f1b94f94a7075a021a3f80ddf0c0de25c /arch/arm/kernel/entry-common.S
parent704bdda03827db8a551e82b312037d63ba3c22ff (diff)
[ARM] 3108/2: old ABI compat: statfs64 and fstatfs64
Patch from Nicolas Pitre struct statfs64 has extra padding with EABI growing its size from 84 to 88. This struct is now __attribute__((packed,aligned(4))) with a small assembly wrapper to force the sz argument to 84 if it is 88 to avoid copying the extra padding over user space memory unexpecting it. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/entry-common.S')
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 34826bcceb7..ee63ee78d84 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -262,6 +262,16 @@ sys_sigaltstack_wrapper:
ldr r2, [sp, #S_OFF + S_SP]
b do_sigaltstack
+ teq r1, #88
+ moveq r1, #84
+ b sys_statfs64
+ teq r1, #88
+ moveq r1, #84
+ b sys_fstatfs64
* Note: off_4k (r5) is always units of 4K. If we can't do the requested
* offset, we return EINVAL.