With the introducion of syscall wrappers all wrappers for syscalls with
64-bit arguments must be handled specially, not only those that have
unaligned 64-bit arguments. This left out the fallocate and
sync_file_range2 syscalls.
Fixes: 7e92e01b7245 ("powerpc: Provide syscall wrapper")
Fixes: e23750623835 ("powerpc/32: fix syscall wrappers with 64-bit arguments of
unaligned register-pairs")
Signed-off-by: Andreas Schwab <sch...@linux-m68k.org>
---
arch/powerpc/include/asm/syscalls.h | 7 +++++++
arch/powerpc/kernel/sys_ppc32.c | 13 ++++++++++++-
arch/powerpc/kernel/syscalls/syscall.tbl | 7 +++++--
3 files changed, 24 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/syscalls.h
b/arch/powerpc/include/asm/syscalls.h
index a1142496cd58..6d51b007b59e 100644
--- a/arch/powerpc/include/asm/syscalls.h
+++ b/arch/powerpc/include/asm/syscalls.h
@@ -104,6 +104,13 @@ long sys_ppc_ftruncate64(unsigned int fd, u32 reg4,
unsigned long len1, unsigned long len2);
long sys_ppc32_fadvise64(int fd, u32 unused, u32 offset1, u32 offset2,
size_t len, int advice);
+long sys_ppc_sync_file_range2(int fd, unsigned int flags,
+ unsigned int offset1,
+ unsigned int offset2,
+ unsigned int nbytes1,
+ unsigned int nbytes2);
+long sys_ppc_fallocate(int fd, int mode, u32 offset1, u32 offset2,
+ u32 len1, u32 len2);
#endif
#ifdef CONFIG_COMPAT
long compat_sys_mmap2(unsigned long addr, size_t len,
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index 1ab4a4d95aba..d451a8229223 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -112,7 +112,7 @@ PPC32_SYSCALL_DEFINE6(ppc32_fadvise64,
advice);
}
-COMPAT_SYSCALL_DEFINE6(ppc_sync_file_range2,
+PPC32_SYSCALL_DEFINE6(ppc_sync_file_range2,
int, fd, unsigned int, flags,
unsigned int, offset1, unsigned int, offset2,
unsigned int, nbytes1, unsigned int, nbytes2)
@@ -122,3 +122,14 @@ COMPAT_SYSCALL_DEFINE6(ppc_sync_file_range2,
return ksys_sync_file_range(fd, offset, nbytes, flags);
}
+
+#ifdef CONFIG_PPC32
+SYSCALL_DEFINE6(ppc_fallocate,
+ int, fd, int, mode,
+ u32, offset1, u32, offset2, u32, len1, u32, len2)
+{
+ return ksys_fallocate(fd, mode,
+ merge_64(offset1, offset2),
+ merge_64(len1, len2));
+}
+#endif
diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl
b/arch/powerpc/kernel/syscalls/syscall.tbl
index e9e0df4f9a61..a0be127475b1 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -394,8 +394,11 @@
305 common signalfd sys_signalfd
compat_sys_signalfd
306 common timerfd_create sys_timerfd_create
307 common eventfd sys_eventfd
-308 common sync_file_range2 sys_sync_file_range2
compat_sys_ppc_sync_file_range2
-309 nospu fallocate sys_fallocate
compat_sys_fallocate
+308 32 sync_file_range2 sys_ppc_sync_file_range2
compat_sys_ppc_sync_file_range2
+308 64 sync_file_range2 sys_sync_file_range2
+308 spu sync_file_range2 sys_sync_file_range2
+309 32 fallocate sys_ppc_fallocate
compat_sys_fallocate
+309 64 fallocate sys_fallocate
310 nospu subpage_prot sys_subpage_prot
311 32 timerfd_settime sys_timerfd_settime32
311 64 timerfd_settime sys_timerfd_settime
--
2.38.1
--
Andreas Schwab, sch...@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
