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Linux 5.16: type member of iov_iter renamed iter_type

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The iov_iter->type member was renamed iov_iter->iter_type. However,
while looking into this, realized that in 2018 a iov_iter_type(*iov)
accessor function was introduced. So if that is present, use it,
otherwise fall back to trying the existing behavior of directly
accessing type from iov_iter.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #12819
This commit is contained in:
Coleman Kane
2021-12-02 23:25:08 -05:00
committed by Tony Hutter
parent 0c40ff56f2
commit 9519fe1ff8
2 changed files with 28 additions and 0 deletions
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module/os/linux/zfs/zpl_file.c
+6
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@@ -250,11 +250,17 @@ zpl_uio_init(zfs_uio_t *uio, struct kiocb *kiocb, struct iov_iter *to,
{
#if defined(HAVE_VFS_IOV_ITER)
zfs_uio_iov_iter_init(uio, to, pos, count, skip);
#else
#ifdef HAVE_IOV_ITER_TYPE
zfs_uio_iovec_init(uio, to->iov, to->nr_segs, pos,
iov_iter_type(to) & ITER_KVEC ? UIO_SYSSPACE : UIO_USERSPACE,
count, skip);
#else
zfs_uio_iovec_init(uio, to->iov, to->nr_segs, pos,
to->type & ITER_KVEC ? UIO_SYSSPACE : UIO_USERSPACE,
count, skip);
#endif
#endif
}
static ssize_t