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fs: make fiemap work from compat_ioctl

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We don't need to do anything special with fiemap to make it work with a
64bit kernel from 32bit userspace, so just go down to do_vfs_ioctl().
Without this patch we were incorrectly failing to do fiemap with a 32bit
userspace on a 64bit kernel.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Josef Bacik 2017-09-29 15:24:06 -04:00 committed by Al Viro
parent d337b66a4c
commit ceac204e1d
1 changed files with 1 additions and 0 deletions
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fs/compat_ioctl.c
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@ -1579,6 +1579,7 @@ COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
case FICLONE:
case FICLONERANGE:
case FIDEDUPERANGE:
case FS_IOC_FIEMAP:
goto do_ioctl;
case FIBMAP: