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| author | Martin Schwidefsky | 2007-07-27 12:29:16 +0200 |
|---|---|---|
| committer | Martin Schwidefsky | 2007-07-27 12:29:19 +0200 |
| commit | 7a8e0c8d9af43c9dfc62a8b2b9cc0484f48f7da4 (patch) | |
| tree | a97ebd19d8f1216b63c0d2743fbef93eecf63fb7 /arch/s390/kernel/compat_wrapper.S | |
| parent | [S390] add types.h include to s390_ext.h (diff) | |
| download | kernel-qcow2-linux-7a8e0c8d9af43c9dfc62a8b2b9cc0484f48f7da4.tar.gz kernel-qcow2-linux-7a8e0c8d9af43c9dfc62a8b2b9cc0484f48f7da4.tar.xz kernel-qcow2-linux-7a8e0c8d9af43c9dfc62a8b2b9cc0484f48f7da4.zip | |
[S390] Wire up sys_fallocate.
This patch implements support of fallocate system call on s390(x)
platform. A wrapper is added to address the issue which s390 ABI has with
the arguments of this system call.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/compat_wrapper.S')
| -rw-r--r-- | arch/s390/kernel/compat_wrapper.S | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index acc415457b45..6ee1bedbd1bf 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1710,3 +1710,13 @@ compat_sys_timerfd_wrapper: sys_eventfd_wrapper: llgfr %r2,%r2 # unsigned int jg sys_eventfd + + .globl sys_fallocate_wrapper +sys_fallocate_wrapper: + lgfr %r2,%r2 # int + lgfr %r3,%r3 # int + sllg %r4,%r4,32 # get high word of 64bit loff_t + lr %r4,%r5 # get low word of 64bit loff_t + sllg %r5,%r6,32 # get high word of 64bit loff_t + l %r5,164(%r15) # get low word of 64bit loff_t + jg sys_fallocate |