[PATCH][COMPAT] compat_sys_fcntl{,64} 6/9 s390x part

From: Stephen Rothwell (sfr@canb.auug.org.au)
Date: Tue Mar 04 2003 - 01:12:30 EST


Hi Linus,

Here is the s390x part with Martin's blessing (hopefully).

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

diff -ruN 2.5.63-32bit.1/arch/s390x/kernel/entry.S 2.5.63-32bit.2/arch/s390x/kernel/entry.S --- 2.5.63-32bit.1/arch/s390x/kernel/entry.S 2003-02-25 12:59:29.000000000 +1100 +++ 2.5.63-32bit.2/arch/s390x/kernel/entry.S 2003-02-25 14:35:59.000000000 +1100 @@ -452,7 +452,7 @@ .long SYSCALL(sys_umount,sys32_umount_wrapper) .long SYSCALL(sys_ni_syscall,sys_ni_syscall) /* old lock syscall */ .long SYSCALL(sys_ioctl,sys32_ioctl_wrapper) - .long SYSCALL(sys_fcntl,sys32_fcntl_wrapper) /* 55 */ + .long SYSCALL(sys_fcntl,compat_sys_fcntl_wrapper) /* 55 */ .long SYSCALL(sys_ni_syscall,sys_ni_syscall) /* intel mpx syscall */ .long SYSCALL(sys_setpgid,sys32_setpgid_wrapper) .long SYSCALL(sys_ni_syscall,sys_ni_syscall) /* old ulimit syscall */ @@ -618,7 +618,7 @@ .long SYSCALL(sys_mincore,sys32_mincore_wrapper) .long SYSCALL(sys_madvise,sys32_madvise_wrapper) .long SYSCALL(sys_getdents64,sys32_getdents64_wrapper)/* 220 */ - .long SYSCALL(sys_ni_syscall,sys32_fcntl64_wrapper) + .long SYSCALL(sys_ni_syscall,compat_sys_fcntl64_wrapper) .long SYSCALL(sys_readahead,sys32_readahead) .long SYSCALL(sys_ni_syscall,sys32_sendfile64) .long SYSCALL(sys_setxattr,sys32_setxattr_wrapper) diff -ruN 2.5.63-32bit.1/arch/s390x/kernel/linux32.c 2.5.63-32bit.2/arch/s390x/kernel/linux32.c --- 2.5.63-32bit.1/arch/s390x/kernel/linux32.c 2003-02-25 12:59:30.000000000 +1100 +++ 2.5.63-32bit.2/arch/s390x/kernel/linux32.c 2003-02-25 14:35:59.000000000 +1100 @@ -834,57 +834,6 @@ return err; } -extern asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); - -asmlinkage long sys32_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - switch (cmd) { - case F_GETLK: - { - struct flock f; - mm_segment_t old_fs; - long ret; - - if(get_compat_flock(&f, (struct compat_flock *)A(arg))) - return -EFAULT; - old_fs = get_fs(); set_fs (KERNEL_DS); - ret = sys_fcntl(fd, cmd, (unsigned long)&f); - set_fs (old_fs); - if (ret) return ret; - if (f.l_start >= 0x7fffffffUL || - f.l_start + f.l_len >= 0x7fffffffUL) - return -EOVERFLOW; - if(put_compat_flock(&f, (struct compat_flock *)A(arg))) - return -EFAULT; - return 0; - } - case F_SETLK: - case F_SETLKW: - { - struct flock f; - mm_segment_t old_fs; - long ret; - - if(get_compat_flock(&f, (struct compat_flock *)A(arg))) - return -EFAULT; - old_fs = get_fs(); set_fs (KERNEL_DS); - ret = sys_fcntl(fd, cmd, (unsigned long)&f); - set_fs (old_fs); - if (ret) return ret; - return 0; - } - default: - return sys_fcntl(fd, cmd, (unsigned long)arg); - } -} - -asmlinkage long sys32_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - if (cmd >= F_GETLK64 && cmd <= F_SETLKW64) - return sys_fcntl(fd, cmd + F_GETLK - F_GETLK64, arg); - return sys32_fcntl(fd, cmd, arg); -} - extern asmlinkage long sys_truncate(const char * path, unsigned long length); extern asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); diff -ruN 2.5.63-32bit.1/arch/s390x/kernel/linux32.h 2.5.63-32bit.2/arch/s390x/kernel/linux32.h --- 2.5.63-32bit.1/arch/s390x/kernel/linux32.h 2003-01-17 14:01:01.000000000 +1100 +++ 2.5.63-32bit.2/arch/s390x/kernel/linux32.h 2003-02-25 14:35:59.000000000 +1100 @@ -21,10 +21,6 @@ __s32 msgtyp; }; -#define F_GETLK64 12 -#define F_SETLK64 13 -#define F_SETLKW64 14 - struct old_sigaction32 { __u32 sa_handler; /* Really a pointer, but need to deal with 32 bits */ compat_old_sigset_t sa_mask; /* A 32 bit mask */ diff -ruN 2.5.63-32bit.1/arch/s390x/kernel/wrapper32.S 2.5.63-32bit.2/arch/s390x/kernel/wrapper32.S --- 2.5.63-32bit.1/arch/s390x/kernel/wrapper32.S 2003-02-25 12:59:30.000000000 +1100 +++ 2.5.63-32bit.2/arch/s390x/kernel/wrapper32.S 2003-02-25 14:35:59.000000000 +1100 @@ -227,12 +227,12 @@ llgfr %r4,%r4 # unsigned int jg sys32_ioctl # branch to system call - .globl sys32_fcntl_wrapper -sys32_fcntl_wrapper: + .globl compat_sys_fcntl_wrapper +compat_sys_fcntl_wrapper: llgfr %r2,%r2 # unsigned int llgfr %r3,%r3 # unsigned int llgfr %r4,%r4 # unsigned long - jg sys32_fcntl # branch to system call + jg compat_sys_fcntl # branch to system call .globl sys32_setpgid_wrapper sys32_setpgid_wrapper: @@ -1050,12 +1050,12 @@ llgfr %r4,%r4 # unsigned int jg sys_getdents64 # branch to system call - .globl sys32_fcntl64_wrapper -sys32_fcntl64_wrapper: + .globl compat_sys_fcntl64_wrapper +compat_sys_fcntl64_wrapper: llgfr %r2,%r2 # unsigned int llgfr %r3,%r3 # unsigned int llgfr %r4,%r4 # unsigned long - jg sys32_fcntl64 # branch to system call + jg compat_sys_fcntl64 # branch to system call .globl sys32_stat64_wrapper sys32_stat64_wrapper: diff -ruN 2.5.63-32bit.1/include/asm-s390x/compat.h 2.5.63-32bit.2/include/asm-s390x/compat.h --- 2.5.63-32bit.1/include/asm-s390x/compat.h 2003-02-25 12:59:57.000000000 +1100 +++ 2.5.63-32bit.2/include/asm-s390x/compat.h 2003-02-25 14:35:59.000000000 +1100 @@ -64,7 +64,18 @@ compat_off_t l_start; compat_off_t l_len; compat_pid_t l_pid; - short __unused; +}; + +#define F_GETLK64 12 +#define F_SETLK64 13 +#define F_SETLKW64 14 + +struct compat_flock64 { + short l_type; + short l_whence; + compat_loff_t l_start; + compat_loff_t l_len; + compat_pid_t l_pid; }; struct compat_statfs { @@ -87,4 +98,7 @@ typedef u32 compat_sigset_word; +#define COMPAT_OFF_T_MAX 0x7fffffff +#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL + #endif /* _ASM_S390X_COMPAT_H */ diff -ruN 2.5.63-32bit.1/include/asm-s390x/fcntl.h 2.5.63-32bit.2/include/asm-s390x/fcntl.h --- 2.5.63-32bit.1/include/asm-s390x/fcntl.h 2001-11-10 09:11:15.000000000 +1100 +++ 2.5.63-32bit.2/include/asm-s390x/fcntl.h 2003-02-25 14:35:59.000000000 +1100 @@ -80,6 +80,4 @@ #define F_LINUX_SPECIFIC_BASE 1024 -#define flock64 flock - #endif - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/



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