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author | Chris Metcalf <cmetcalf@tilera.com> | 2013-03-04 19:37:32 +0100 |
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committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-03-04 19:37:32 +0100 |
commit | 87c319a2c3c2efd397281089b9cdce3050febeff (patch) | |
tree | 762ae66c1cfe3e7f170ba01088273fcc429298a6 /arch | |
parent | tile: work around bug in the generic sys_llseek (diff) | |
download | linux-87c319a2c3c2efd397281089b9cdce3050febeff.tar.xz linux-87c319a2c3c2efd397281089b9cdce3050febeff.zip |
tile: properly use COMPAT_SYSCALL_DEFINEx
This was pointed out by Al Viro. Using the correct wrappers
properly does sign extension as necessary on syscall arguments.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/tile/kernel/compat.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/arch/tile/kernel/compat.c b/arch/tile/kernel/compat.c index 69034e215742..6ea4cdb3c6a0 100644 --- a/arch/tile/kernel/compat.c +++ b/arch/tile/kernel/compat.c @@ -32,45 +32,48 @@ * adapt the usual convention. */ -long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high) +COMPAT_SYSCALL_DEFINE4(truncate64, char __user *, filename, u32, dummy, + u32, low, u32, high) { return sys_truncate(filename, ((loff_t)high << 32) | low); } -long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high) +COMPAT_SYSCALL_DEFINE4(ftruncate64, unsigned int, fd, u32, dummy, + u32, low, u32, high) { return sys_ftruncate(fd, ((loff_t)high << 32) | low); } -long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count, - u32 dummy, u32 low, u32 high) +COMPAT_SYSCALL_DEFINE6(pread64, unsigned int, fd, char __user *, ubuf, + size_t, count, u32, dummy, u32, low, u32, high) { return sys_pread64(fd, ubuf, count, ((loff_t)high << 32) | low); } -long compat_sys_pwrite64(unsigned int fd, char __user *ubuf, size_t count, - u32 dummy, u32 low, u32 high) +COMPAT_SYSCALL_DEFINE6(pwrite64, unsigned int, fd, char __user *, ubuf, + size_t, count, u32, dummy, u32, low, u32, high) { return sys_pwrite64(fd, ubuf, count, ((loff_t)high << 32) | low); } -long compat_sys_lookup_dcookie(u32 low, u32 high, char __user *buf, size_t len) +COMPAT_SYSCALL_DEFINE4(lookup_dcookie, u32, low, u32, high, + char __user *, buf, size_t, len) { return sys_lookup_dcookie(((loff_t)high << 32) | low, buf, len); } -long compat_sys_sync_file_range2(int fd, unsigned int flags, - u32 offset_lo, u32 offset_hi, - u32 nbytes_lo, u32 nbytes_hi) +COMPAT_SYSCALL_DEFINE6(sync_file_range2, int, fd, unsigned int, flags, + u32, offset_lo, u32, offset_hi, + u32, nbytes_lo, u32, nbytes_hi) { return sys_sync_file_range(fd, ((loff_t)offset_hi << 32) | offset_lo, ((loff_t)nbytes_hi << 32) | nbytes_lo, flags); } -long compat_sys_fallocate(int fd, int mode, - u32 offset_lo, u32 offset_hi, - u32 len_lo, u32 len_hi) +COMPAT_SYSCALL_DEFINE6(fallocate, int, fd, int, mode, + u32, offset_lo, u32, offset_hi, + u32, len_lo, u32, len_hi) { return sys_fallocate(fd, mode, ((loff_t)offset_hi << 32) | offset_lo, ((loff_t)len_hi << 32) | len_lo); @@ -81,9 +84,9 @@ long compat_sys_fallocate(int fd, int mode, * offset_low as "unsigned long", thus making it possible to pass * a sign-extended high 32 bits in offset_low. */ -long compat_sys_llseek(unsigned int fd, unsigned int offset_high, - unsigned int offset_low, loff_t __user * result, - unsigned int origin) +COMPAT_SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned int, offset_high, + unsigned int, offset_low, loff_t __user *, result, + unsigned int, origin) { return sys_llseek(fd, offset_high, offset_low, result, origin); } |