tcm_vhost: Introduce iov_num_pages
Add a helper to calculate the number of pages needed for a iov entry. (nab: Drop unnecessary inline) Signed-off-by: Asias He <asias@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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@ -77,6 +77,12 @@ static struct workqueue_struct *tcm_vhost_workqueue;
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static DEFINE_MUTEX(tcm_vhost_mutex);
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static DEFINE_MUTEX(tcm_vhost_mutex);
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static LIST_HEAD(tcm_vhost_list);
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static LIST_HEAD(tcm_vhost_list);
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static int iov_num_pages(struct iovec *iov)
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{
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return (PAGE_ALIGN((unsigned long)iov->iov_base + iov->iov_len) -
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((unsigned long)iov->iov_base & PAGE_MASK)) >> PAGE_SHIFT;
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}
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static int tcm_vhost_check_true(struct se_portal_group *se_tpg)
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static int tcm_vhost_check_true(struct se_portal_group *se_tpg)
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{
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{
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return 1;
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return 1;
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