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[S390] compat: fix truncate system call wrapper

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The system call takes a signed length parameter. So perform sign
extension instead of zero extension.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2009-10-06 10:34:06 +02:00 committed by Martin Schwidefsky
parent 0cd6a403e8
commit 593c4f7398
1 changed files with 1 additions and 1 deletions
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2
arch/s390/kernel/compat_wrapper.S
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@ -409,7 +409,7 @@ sys32_munmap_wrapper:
.globl sys32_truncate_wrapper
sys32_truncate_wrapper:
llgtr %r2,%r2 # const char *
llgfr %r3,%r3 # unsigned long
lgfr %r3,%r3 # long
jg sys_truncate # branch to system call
.globl sys32_ftruncate_wrapper