From 2fd628fe25e1f3d07996b0dab728ea0702f81306 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Tue, 21 Feb 2006 15:59:00 +0900 Subject: [PATCH] [MIPS] Use generic compat routines for readdir, getdents Not just cleanup but also fixes O32 readdir(2) emulation. Signed-off-by: Atsushi Nemoto Signed-off-by: Ralf Baechle --- arch/mips/kernel/linux32.c | 54 ---------------------------------- arch/mips/kernel/scall64-n32.S | 2 +- arch/mips/kernel/scall64-o32.S | 4 +-- 3 files changed, 3 insertions(+), 57 deletions(-) diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index 5f68b220c26d..e00e5f6e7fdd 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -161,60 +161,6 @@ out: return error; } -struct dirent32 { - unsigned int d_ino; - unsigned int d_off; - unsigned short d_reclen; - char d_name[NAME_MAX + 1]; -}; - -static void -xlate_dirent(void *dirent64, void *dirent32, long n) -{ - long off; - struct dirent *dirp; - struct dirent32 *dirp32; - - off = 0; - while (off < n) { - dirp = (struct dirent *)(dirent64 + off); - dirp32 = (struct dirent32 *)(dirent32 + off); - off += dirp->d_reclen; - dirp32->d_ino = dirp->d_ino; - dirp32->d_off = (unsigned int)dirp->d_off; - dirp32->d_reclen = dirp->d_reclen; - strncpy(dirp32->d_name, dirp->d_name, dirp->d_reclen - ((3 * 4) + 2)); - } - return; -} - -asmlinkage long -sys32_getdents(unsigned int fd, void * dirent32, unsigned int count) -{ - long n; - void *dirent64; - - dirent64 = (void *)((unsigned long)(dirent32 + (sizeof(long) - 1)) & ~(sizeof(long) - 1)); - if ((n = sys_getdents(fd, dirent64, count - (dirent64 - dirent32))) < 0) - return(n); - xlate_dirent(dirent64, dirent32, n); - return(n); -} - -asmlinkage int old_readdir(unsigned int fd, void * dirent, unsigned int count); - -asmlinkage int -sys32_readdir(unsigned int fd, void * dirent32, unsigned int count) -{ - int n; - struct dirent dirent64; - - if ((n = old_readdir(fd, &dirent64, count)) < 0) - return(n); - xlate_dirent(&dirent64, dirent32, dirent64.d_reclen); - return(n); -} - asmlinkage int sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options) { diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index d87b5446fa13..02c8267e45e7 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -195,7 +195,7 @@ EXPORT(sysn32_call_table) PTR sys_fdatasync PTR sys_truncate PTR sys_ftruncate /* 6075 */ - PTR sys32_getdents + PTR compat_sys_getdents PTR sys_getcwd PTR sys_chdir PTR sys_fchdir diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 5b0414018c9a..797e0d874889 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -293,7 +293,7 @@ sys_call_table: PTR sys_uselib PTR sys_swapon PTR sys_reboot - PTR sys32_readdir + PTR compat_sys_old_readdir PTR old_mmap /* 4090 */ PTR sys_munmap PTR sys_truncate @@ -345,7 +345,7 @@ sys_call_table: PTR sys_setfsuid PTR sys_setfsgid PTR sys32_llseek /* 4140 */ - PTR sys32_getdents + PTR compat_sys_getdents PTR compat_sys_select PTR sys_flock PTR sys_msync -- 2.34.1