nilfs2: remove compat ioctl code

This removes compat code from the nilfs ioctls and applies the same
function for both .ioctl and .compat_ioctl file operations.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 228 deletions

diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index 7fbd9fe1d03..33aff8842ce 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -631,231 +631,3 @@ int nilfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
 		return -ENOTTY;
 	}
 }
-
-/* compat_ioctl */
-#ifdef CONFIG_COMPAT
-#include <linux/compat.h>
-
-static int nilfs_compat_locked_ioctl(struct inode *inode, struct file *filp,
-				     unsigned int cmd, unsigned long arg)
-{
-	int ret;
-
-	lock_kernel();
-	ret = nilfs_ioctl(inode, filp, cmd, arg);
-	unlock_kernel();
-	return ret;
-}
-
-static int
-nilfs_compat_ioctl_uargv32_to_uargv(struct nilfs_argv32 __user *uargv32,
-				    struct nilfs_argv __user *uargv)
-{
-	compat_uptr_t base;
-	compat_size_t nmembs, size;
-	compat_int_t index, flags;
-
-	if (get_user(base, &uargv32->v_base) ||
-	    put_user(compat_ptr(base), &uargv->v_base) ||
-	    get_user(nmembs, &uargv32->v_nmembs) ||
-	    put_user(nmembs, &uargv->v_nmembs) ||
-	    get_user(size, &uargv32->v_size) ||
-	    put_user(size, &uargv->v_size) ||
-	    get_user(index, &uargv32->v_index) ||
-	    put_user(index, &uargv->v_index) ||
-	    get_user(flags, &uargv32->v_flags) ||
-	    put_user(flags, &uargv->v_flags))
-		return -EFAULT;
-	return 0;
-}
-
-static int
-nilfs_compat_ioctl_uargv_to_uargv32(struct nilfs_argv __user *uargv,
-				    struct nilfs_argv32 __user *uargv32)
-{
-	size_t nmembs;
-
-	if (get_user(nmembs, &uargv->v_nmembs) ||
-	    put_user(nmembs, &uargv32->v_nmembs))
-		return -EFAULT;
-	return 0;
-}
-
-static int
-nilfs_compat_ioctl_get_by_argv(struct inode *inode, struct file *filp,
-			       unsigned int cmd, unsigned long arg)
-{
-	struct nilfs_argv __user *uargv;
-	struct nilfs_argv32 __user *uargv32;
-	int ret;
-
-	uargv = compat_alloc_user_space(sizeof(struct nilfs_argv));
-	uargv32 = compat_ptr(arg);
-	ret = nilfs_compat_ioctl_uargv32_to_uargv(uargv32, uargv);
-	if (ret < 0)
-		return ret;
-
-	ret = nilfs_compat_locked_ioctl(inode, filp, cmd, (unsigned long)uargv);
-	if (ret < 0)
-		return ret;
-
-	return nilfs_compat_ioctl_uargv_to_uargv32(uargv, uargv32);
-}
-
-static int
-nilfs_compat_ioctl_change_cpmode(struct inode *inode, struct file *filp,
-				 unsigned int cmd, unsigned long arg)
-{
-	struct nilfs_cpmode __user *ucpmode;
-	struct nilfs_cpmode32 __user *ucpmode32;
-	int mode;
-
-	ucpmode = compat_alloc_user_space(sizeof(struct nilfs_cpmode));
-	ucpmode32 = compat_ptr(arg);
-	if (copy_in_user(&ucpmode->cm_cno, &ucpmode32->cm_cno,
-			 sizeof(__u64)) ||
-	    get_user(mode, &ucpmode32->cm_mode) ||
-	    put_user(mode, &ucpmode->cm_mode))
-		return -EFAULT;
-
-	return nilfs_compat_locked_ioctl(
-		inode, filp, cmd, (unsigned long)ucpmode);
-}
-
-
-static inline int
-nilfs_compat_ioctl_delete_checkpoint(struct inode *inode, struct file *filp,
-				     unsigned int cmd, unsigned long arg)
-{
-	return nilfs_compat_locked_ioctl(inode, filp, cmd, arg);
-}
-
-static inline int
-nilfs_compat_ioctl_get_cpinfo(struct inode *inode, struct file *filp,
-			      unsigned int cmd, unsigned long arg)
-{
-	return nilfs_compat_ioctl_get_by_argv(inode, filp, cmd, arg);
-}
-
-static inline int
-nilfs_compat_ioctl_get_cpstat(struct inode *inode, struct file *filp,
-			      unsigned int cmd, unsigned long arg)
-{
-	return nilfs_compat_locked_ioctl(inode, filp, cmd, arg);
-}
-
-static inline int
-nilfs_compat_ioctl_get_suinfo(struct inode *inode, struct file *filp,
-			      unsigned int cmd, unsigned long arg)
-{
-	return nilfs_compat_ioctl_get_by_argv(inode, filp, cmd, arg);
-}
-
-static int
-nilfs_compat_ioctl_get_sustat(struct inode *inode, struct file *filp,
-			      unsigned int cmd, unsigned long arg)
-{
-	struct nilfs_sustat __user *usustat;
-	struct nilfs_sustat32 __user *usustat32;
-	time_t ctime, nongc_ctime;
-	int ret;
-
-	usustat = compat_alloc_user_space(sizeof(struct nilfs_sustat));
-	ret = nilfs_compat_locked_ioctl(inode, filp, cmd,
-					(unsigned long)usustat);
-	if (ret < 0)
-		return ret;
-
-	usustat32 = compat_ptr(arg);
-	if (copy_in_user(&usustat32->ss_nsegs, &usustat->ss_nsegs,
-			 sizeof(__u64)) ||
-	    copy_in_user(&usustat32->ss_ncleansegs, &usustat->ss_ncleansegs,
-			 sizeof(__u64)) ||
-	    copy_in_user(&usustat32->ss_ndirtysegs, &usustat->ss_ndirtysegs,
-			 sizeof(__u64)) ||
-	    get_user(ctime, &usustat->ss_ctime) ||
-	    put_user(ctime, &usustat32->ss_ctime) ||
-	    get_user(nongc_ctime, &usustat->ss_nongc_ctime) ||
-	    put_user(nongc_ctime, &usustat32->ss_nongc_ctime))
-		return -EFAULT;
-	return 0;
-}
-
-static inline int
-nilfs_compat_ioctl_get_vinfo(struct inode *inode, struct file *filp,
-			      unsigned int cmd, unsigned long arg)
-{
-	return nilfs_compat_ioctl_get_by_argv(inode, filp, cmd, arg);
-}
-
-static inline int
-nilfs_compat_ioctl_get_bdescs(struct inode *inode, struct file *filp,
-			     unsigned int cmd, unsigned long arg)
-{
-	return nilfs_compat_ioctl_get_by_argv(inode, filp, cmd, arg);
-}
-
-static int
-nilfs_compat_ioctl_clean_segments(struct inode *inode, struct file *filp,
-				  unsigned int cmd, unsigned long arg)
-{
-	struct nilfs_argv __user *uargv;
-	struct nilfs_argv32 __user *uargv32;
-	int i, ret;
-
-	uargv = compat_alloc_user_space(sizeof(struct nilfs_argv) * 5);
-	uargv32 = compat_ptr(arg);
-	for (i = 0; i < 5; i++) {
-		ret = nilfs_compat_ioctl_uargv32_to_uargv(&uargv32[i],
-							  &uargv[i]);
-		if (ret < 0)
-			return ret;
-	}
-	return nilfs_compat_locked_ioctl(
-		inode, filp, cmd, (unsigned long)uargv);
-}
-
-static int nilfs_compat_ioctl_sync(struct inode *inode, struct file *filp,
-				   unsigned int cmd, unsigned long arg)
-{
-	return nilfs_compat_locked_ioctl(inode, filp, cmd, arg);
-}
-
-long nilfs_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	struct inode *inode = filp->f_dentry->d_inode;
-
-	switch (cmd) {
-	case NILFS_IOCTL32_CHANGE_CPMODE:
-		return nilfs_compat_ioctl_change_cpmode(
-			inode, filp, NILFS_IOCTL_CHANGE_CPMODE, arg);
-	case NILFS_IOCTL_DELETE_CHECKPOINT:
-		return nilfs_compat_ioctl_delete_checkpoint(
-			inode, filp, cmd, arg);
-	case NILFS_IOCTL32_GET_CPINFO:
-		return nilfs_compat_ioctl_get_cpinfo(
-			inode, filp, NILFS_IOCTL_GET_CPINFO, arg);
-	case NILFS_IOCTL_GET_CPSTAT:
-		return nilfs_compat_ioctl_get_cpstat(inode, filp, cmd, arg);
-	case NILFS_IOCTL32_GET_SUINFO:
-		return nilfs_compat_ioctl_get_suinfo(
-			inode, filp, NILFS_IOCTL_GET_SUINFO, arg);
-	case NILFS_IOCTL32_GET_SUSTAT:
-		return nilfs_compat_ioctl_get_sustat(
-			inode, filp, NILFS_IOCTL_GET_SUSTAT, arg);
-	case NILFS_IOCTL32_GET_VINFO:
-		return nilfs_compat_ioctl_get_vinfo(
-			inode, filp, NILFS_IOCTL_GET_VINFO, arg);
-	case NILFS_IOCTL32_GET_BDESCS:
-		return nilfs_compat_ioctl_get_bdescs(
-			inode, filp, NILFS_IOCTL_GET_BDESCS, arg);
-	case NILFS_IOCTL32_CLEAN_SEGMENTS:
-		return nilfs_compat_ioctl_clean_segments(
-			inode, filp, NILFS_IOCTL_CLEAN_SEGMENTS, arg);
-	case NILFS_IOCTL_SYNC:
-		return nilfs_compat_ioctl_sync(inode, filp, cmd, arg);
-	default:
-		return -ENOIOCTLCMD;
-	}
-}
-#endif