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Commit 8676d2e0 authored by Atsushi Nemoto's avatar Atsushi Nemoto Committed by Ralf Baechle
Browse files

[MIPS] Fix some system calls with long long arguments 



* O32 fadvise64() pass long long arguments by register pairs.  Add
  sys32 version for 64 bit kernel.
* N32 readahead() can pass a long long argument by one register.  No
  need to use sys32_readahead.

Signed-off-by: default avatarAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent fbd5604d

arch/mips/kernel/linux32.c

+10 −0
Original line number Diff line number Diff line
@@ -556,6 +556,16 @@ asmlinkage long sys32_sync_file_range(int fd, int __pad, 
			flags);

}



asmlinkage long sys32_fadvise64_64(int fd, int __pad,

	unsigned long a2, unsigned long a3,

	unsigned long a4, unsigned long a5,

	int flags)

{

	return sys_fadvise64_64(fd,

			merge_64(a2, a3), merge_64(a4, a5),

			flags);

}



save_static_function(sys32_clone);

__attribute_used__ noinline static int

_sys32_clone(nabi_no_regargs struct pt_regs regs)

arch/mips/kernel/scall64-n32.S

+1 −1
Original line number Diff line number Diff line
@@ -299,7 +299,7 @@ EXPORT(sysn32_call_table) 
	PTR	sys_ni_syscall			/* res. for afs_syscall */

	PTR	sys_ni_syscall			/* res. for security */

	PTR	sys_gettid

	PTR	sys32_readahead

	PTR	sys_readahead

	PTR	sys_setxattr			/* 6180 */

	PTR	sys_lsetxattr

	PTR	sys_fsetxattr

arch/mips/kernel/scall64-o32.S

+1 −1
Original line number Diff line number Diff line
@@ -459,7 +459,7 @@ sys_call_table: 
	PTR	sys_remap_file_pages

	PTR	sys_set_tid_address

	PTR	sys_restart_syscall

	PTR	sys_fadvise64_64

	PTR	sys32_fadvise64_64

	PTR	compat_sys_statfs64		/* 4255 */

	PTR	compat_sys_fstatfs64

	PTR	compat_sys_timer_create