Messages in this thread Patch in this message | | | From | Andries.Brouwer@cwi ... | Date | Mon, 21 Apr 2003 03:39:56 +0200 (MEST) | Subject | [PATCH] mknod64 with major,minor |
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A second version of mknod64 for i386. There are no assumptions on the size of dev_t.
sys_mknod takes unsigned int (instead of dev_t) sys_mknod64 takes two unsigned ints.
Andries
-------------------------------------------------- diff -u --recursive --new-file -X /linux/dontdiff a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S --- a/arch/i386/kernel/entry.S Tue Mar 25 04:54:29 2003 +++ b/arch/i386/kernel/entry.S Mon Apr 21 01:00:56 2003 @@ -852,6 +852,7 @@ .long sys_clock_gettime /* 265 */ .long sys_clock_getres .long sys_clock_nanosleep + .long sys_mknod64 nr_syscalls=(.-sys_call_table)/4 diff -u --recursive --new-file -X /linux/dontdiff a/fs/namei.c b/fs/namei.c --- a/fs/namei.c Sun Apr 20 12:59:32 2003 +++ b/fs/namei.c Mon Apr 21 02:07:18 2003 @@ -1403,11 +1403,12 @@ return error; } -asmlinkage long sys_mknod(const char __user * filename, int mode, dev_t dev) +static long +do_mknod(const char __user *filename, int mode, dev_t dev) { int error = 0; - char * tmp; - struct dentry * dentry; + char *tmp; + struct dentry *dentry; struct nameidata nd; if (S_ISDIR(mode)) @@ -1448,6 +1449,27 @@ return error; } +asmlinkage long +sys_mknod(const char __user *filename, int mode, unsigned int devnr) +{ + dev_t dev = devnr; + + if (dev != devnr) + return -EOVERFLOW; + return do_mknod(filename, mode, dev); +} + +asmlinkage long +sys_mknod64(const char __user *filename, int mode, + unsigned int major, unsigned int minor) +{ + dev_t dev = MKDEV(major, minor); + + if (MAJOR(dev) != major || MINOR(dev) != minor) + return -EOVERFLOW; + return do_mknod(filename, mode, dev); +} + int vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) { int error = may_create(dir, dentry); diff -u --recursive --new-file -X /linux/dontdiff a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h --- a/include/asm-i386/unistd.h Mon Feb 24 23:02:56 2003 +++ b/include/asm-i386/unistd.h Mon Apr 21 01:01:48 2003 @@ -273,8 +273,9 @@ #define __NR_clock_gettime (__NR_timer_create+6) #define __NR_clock_getres (__NR_timer_create+7) #define __NR_clock_nanosleep (__NR_timer_create+8) +#define __NR_sys_mknod64 268 -#define NR_syscalls 268 +#define NR_syscalls 269 /* user-visible error numbers are in the range -1 - -124: see <asm-i386/errno.h> */ - 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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