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| author | David S. Miller <davem@davemloft.net> | 2009-07-27 18:10:28 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-07-27 18:10:28 -0700 |
| commit | 9a926d86b29a25456f1dd8c9df938e151b1c3978 (patch) | |
| tree | e718df684012799022e726ebdc007b1eab9cf77a | |
| parent | 14d87e6c399f3942d63dff41447ff08a615d9a6b (diff) | |
| download | linux-9a926d86b29a25456f1dd8c9df938e151b1c3978.tar.gz linux-9a926d86b29a25456f1dd8c9df938e151b1c3978.tar.bz2 linux-9a926d86b29a25456f1dd8c9df938e151b1c3978.zip | |
sparc64: Sign extend length arg to truncate syscalls when compat.
The first thing sys_truncate() and sys_ftruncate() do is sign extend
the unsigned length arg to a signed type.
Thanks to Benjamin Herrenschmidt for the tip.
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc/kernel/sys32.S | 2 | ||||
| -rw-r--r-- | arch/sparc/kernel/systbls_64.S | 4 |
2 files changed, 4 insertions, 2 deletions
diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S index f061c4dda9ef..577f8fab8b6b 100644 --- a/arch/sparc/kernel/sys32.S +++ b/arch/sparc/kernel/sys32.S @@ -138,6 +138,8 @@ SIGN2(sys32_splice, sys_splice, %o0, %o1) SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) SIGN2(sys32_tee, sys_tee, %o0, %o1) SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) +SIGN1(sys32_truncate, sys_truncate, %o1) +SIGN1(sys32_ftruncate, sys_ftruncate, %o1) .globl sys32_mmap2 sys32_mmap2: diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 6b3ee88e253c..2ee7250ba7ae 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -43,8 +43,8 @@ sys_call_table32: /*110*/ .word sys_setresgid, sys_getresgid, sys_setregid, sys_nis_syscall, sys_nis_syscall .word sys32_getgroups, compat_sys_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd /*120*/ .word compat_sys_readv, compat_sys_writev, compat_sys_settimeofday, sys_fchown16, sys_fchmod - .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys_truncate -/*130*/ .word sys_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall + .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys32_truncate +/*130*/ .word sys32_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall .word sys_nis_syscall, sys32_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64 /*140*/ .word sys32_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit .word compat_sys_setrlimit, sys_pivot_root, sys32_prctl, sys_pciconfig_read, sys_pciconfig_write |