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Linux 4.20 compat: wrapper function for iov_iter type access

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An iov_iter_type() function to access the "type" member of the struct
iov_iter was added at one point. Move the conditional logic to decide
which method to use for accessing it into a macro and simplify the
zpl_uio_init code.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #15100
This commit is contained in:
Coleman Kane
2023-07-30 15:23:47 -04:00
committed by Brian Behlendorf
parent 0bf2c5365e
commit 8be6308e85
2 changed files with 8 additions and 5 deletions
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include/os/linux/spl/sys/uio.h
+6
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@@ -179,4 +179,10 @@ zfs_uio_iov_iter_init(zfs_uio_t *uio, struct iov_iter *iter, offset_t offset,
#define zfs_uio_iter_iov(iter) (iter)->iov
#endif
#if defined(HAVE_IOV_ITER_TYPE)
#define zfs_uio_iov_iter_type(iter) iov_iter_type((iter))
#else
#define zfs_uio_iov_iter_type(iter) (iter)->type
#endif
#endif /* SPL_UIO_H */