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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>
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Heiko Carstens authored and Martin Schwidefsky committed Oct 6, 2009
1 parent 0cd6a40 commit 593c4f7
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion arch/s390/kernel/compat_wrapper.S
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Original file line number Diff line number Diff line change
Expand Up @@ -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
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