Fix assert in FreeBSD-specific dmu_read_pages
The function has three similar pieces of code: for read-behind pages, requested pages and read-ahead pages. All three pieces had an assert to ensure that the page is not mapped. Later the assert was relaxed to require that the page is not mapped for writing. But that was done in two places out of three. This change fixes the third piece, read-ahead. Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Andriy Gapon <avg@FreeBSD.org> Closes #11654
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@ -319,7 +319,7 @@ dmu_read_pages(objset_t *os, uint64_t object, vm_page_t *ma, int count,
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break;
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}
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ASSERT(m->dirty == 0);
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ASSERT(!pmap_page_is_mapped(m));
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ASSERT(!pmap_page_is_write_mapped(m));
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ASSERT(db->db_size > PAGE_SIZE);
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bufoff = IDX_TO_OFF(m->pindex) % db->db_size;
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