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compat: move cp_compat_stat to common code

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struct stat / compat_stat is the same on all architectures, so
cp_compat_stat should be, too.

Turns out it is, except that various architectures have slightly and some
high2lowuid/high2lowgid or the direct assignment instead of the
SET_UID/SET_GID that expands to the correct one anyway.

This patch replaces the arch-specific cp_compat_stat implementations with
a common one based on the x86-64 one.

Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: David S. Miller <[email protected]> [ sparc bits ]
Acked-by: Kyle McMartin <[email protected]> [ parisc bits ]
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christoph Hellwig 2008-10-15 22:02:05 -07:00 • committed by Linus Torvalds
commit f7a5000f7a
9 changed files with 39 additions and 259 deletions
Download patch file Download diff file Expand all files Collapse all files

47
arch/parisc/kernel/sys_parisc32.c
View file

@ -237,53 +237,6 @@ int sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user
return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
}
int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
{
compat_ino_t ino;
int err;
if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) ||
!new_valid_dev(stat->rdev))
return -EOVERFLOW;
ino = stat->ino;
if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino)
return -EOVERFLOW;
err = put_user(new_encode_dev(stat->dev), &statbuf->st_dev);
err |= put_user(ino, &statbuf->st_ino);
err |= put_user(stat->mode, &statbuf->st_mode);
err |= put_user(stat->nlink, &statbuf->st_nlink);
err |= put_user(0, &statbuf->st_reserved1);
err |= put_user(0, &statbuf->st_reserved2);
err |= put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev);
err |= put_user(stat->size, &statbuf->st_size);
err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
err |= put_user(stat->blksize, &statbuf->st_blksize);
err |= put_user(stat->blocks, &statbuf->st_blocks);
err |= put_user(0, &statbuf->__unused1);
err |= put_user(0, &statbuf->__unused2);
err |= put_user(0, &statbuf->__unused3);
err |= put_user(0, &statbuf->__unused4);
err |= put_user(0, &statbuf->__unused5);
err |= put_user(0, &statbuf->st_fstype); /* not avail */
err |= put_user(0, &statbuf->st_realdev); /* not avail */
err |= put_user(0, &statbuf->st_basemode); /* not avail */
err |= put_user(0, &statbuf->st_spareshort);
err |= put_user(stat->uid, &statbuf->st_uid);
err |= put_user(stat->gid, &statbuf->st_gid);
err |= put_user(0, &statbuf->st_spare4[0]);
err |= put_user(0, &statbuf->st_spare4[1]);
err |= put_user(0, &statbuf->st_spare4[2]);
return err;
}
/*** copied from mips64 ***/
/*
* Ooo, nasty. We need here to frob 32-bit unsigned longs to