#include <asm/types.h>
#include <asm/uaccess.h>
-#include <asm/semaphore.h>
#include <asm/mmu_context.h>
#include "sys32.h"
return err;
}
-struct linux32_dirent {
- u32 d_ino;
- compat_off_t d_off;
- u16 d_reclen;
- char d_name[1];
-};
-
-struct old_linux32_dirent {
- u32 d_ino;
- u32 d_offset;
- u16 d_namlen;
- char d_name[1];
-};
-
-struct getdents32_callback {
- struct linux32_dirent __user * current_dir;
- struct linux32_dirent __user * previous;
- int count;
- int error;
-};
-
-struct readdir32_callback {
- struct old_linux32_dirent __user * dirent;
- int count;
-};
-
-#define ROUND_UP(x,a) ((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1)))
-#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
-static int
-filldir32 (void *__buf, const char *name, int namlen, loff_t offset, ino_t ino,
- unsigned int d_type)
-{
- struct linux32_dirent __user * dirent;
- struct getdents32_callback * buf = (struct getdents32_callback *) __buf;
- int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1, 4);
- u32 d_ino;
-
- buf->error = -EINVAL; /* only used if we fail.. */
- if (reclen > buf->count)
- return -EINVAL;
- d_ino = ino;
- if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
- return -EOVERFLOW;
- dirent = buf->previous;
- if (dirent)
- put_user(offset, &dirent->d_off);
- dirent = buf->current_dir;
- buf->previous = dirent;
- put_user(d_ino, &dirent->d_ino);
- put_user(reclen, &dirent->d_reclen);
- copy_to_user(dirent->d_name, name, namlen);
- put_user(0, dirent->d_name + namlen);
- dirent = ((void __user *)dirent) + reclen;
- buf->current_dir = dirent;
- buf->count -= reclen;
- return 0;
-}
-
-asmlinkage long
-sys32_getdents (unsigned int fd, void __user * dirent, unsigned int count)
-{
- struct file * file;
- struct linux32_dirent __user * lastdirent;
- struct getdents32_callback buf;
- int error;
-
- error = -EBADF;
- file = fget(fd);
- if (!file)
- goto out;
-
- buf.current_dir = (struct linux32_dirent __user *) dirent;
- buf.previous = NULL;
- buf.count = count;
- buf.error = 0;
-
- error = vfs_readdir(file, filldir32, &buf);
- if (error < 0)
- goto out_putf;
- error = buf.error;
- lastdirent = buf.previous;
- if (lastdirent) {
- put_user(file->f_pos, &lastdirent->d_off);
- error = count - buf.count;
- }
-
-out_putf:
- fput(file);
-out:
- return error;
-}
-
-static int
-fillonedir32 (void * __buf, const char * name, int namlen, loff_t offset, ino_t ino,
- unsigned int d_type)
-{
- struct readdir32_callback * buf = (struct readdir32_callback *) __buf;
- struct old_linux32_dirent __user * dirent;
- u32 d_ino;
-
- if (buf->count)
- return -EINVAL;
- d_ino = ino;
- if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
- return -EOVERFLOW;
- buf->count++;
- dirent = buf->dirent;
- put_user(d_ino, &dirent->d_ino);
- put_user(offset, &dirent->d_offset);
- put_user(namlen, &dirent->d_namlen);
- copy_to_user(dirent->d_name, name, namlen);
- put_user(0, dirent->d_name + namlen);
- return 0;
-}
-
-asmlinkage long
-sys32_readdir (unsigned int fd, void __user * dirent, unsigned int count)
-{
- int error;
- struct file * file;
- struct readdir32_callback buf;
-
- error = -EBADF;
- file = fget(fd);
- if (!file)
- goto out;
-
- buf.count = 0;
- buf.dirent = dirent;
-
- error = vfs_readdir(file, fillonedir32, &buf);
- if (error >= 0)
- error = buf.count;
- fput(file);
-out:
- return error;
-}
-
/*** copied from mips64 ***/
/*
* Ooo, nasty. We need here to frob 32-bit unsigned longs to
}
-struct sysinfo32 {
- s32 uptime;
- u32 loads[3];
- u32 totalram;
- u32 freeram;
- u32 sharedram;
- u32 bufferram;
- u32 totalswap;
- u32 freeswap;
- unsigned short procs;
- u32 totalhigh;
- u32 freehigh;
- u32 mem_unit;
- char _f[12];
-};
-
-/* We used to call sys_sysinfo and translate the result. But sys_sysinfo
- * undoes the good work done elsewhere, and rather than undoing the
- * damage, I decided to just duplicate the code from sys_sysinfo here.
- */
-
-asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
-{
- struct sysinfo val;
- int err;
- unsigned long seq;
-
- /* We don't need a memset here because we copy the
- * struct to userspace once element at a time.
- */
-
- do {
- seq = read_seqbegin(&xtime_lock);
- val.uptime = jiffies / HZ;
-
- val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
- val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
- val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
-
- val.procs = nr_threads;
- } while (read_seqretry(&xtime_lock, seq));
-
-
- si_meminfo(&val);
- si_swapinfo(&val);
-
- err = put_user (val.uptime, &info->uptime);
- err |= __put_user (val.loads[0], &info->loads[0]);
- err |= __put_user (val.loads[1], &info->loads[1]);
- err |= __put_user (val.loads[2], &info->loads[2]);
- err |= __put_user (val.totalram, &info->totalram);
- err |= __put_user (val.freeram, &info->freeram);
- err |= __put_user (val.sharedram, &info->sharedram);
- err |= __put_user (val.bufferram, &info->bufferram);
- err |= __put_user (val.totalswap, &info->totalswap);
- err |= __put_user (val.freeswap, &info->freeswap);
- err |= __put_user (val.procs, &info->procs);
- err |= __put_user (val.totalhigh, &info->totalhigh);
- err |= __put_user (val.freehigh, &info->freehigh);
- err |= __put_user (val.mem_unit, &info->mem_unit);
- return err ? -EFAULT : 0;
-}
-
-
/* lseek() needs a wrapper because 'offset' can be negative, but the top
* half of the argument has been zeroed by syscall.S.
*/
return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
buf, len);
}
+
+asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
+ u32 lenhi, u32 lenlo)
+{
+ return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
+ ((loff_t)lenhi << 32) | lenlo);
+}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff