Messages in this thread | | | Date | Tue, 14 Feb 2023 23:53:34 +0530 | From | Deepak R Varma <> | Subject | Query on mm/folio-compat: pagecache_get_page |
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Hello, Could someone comment if it is safe to access the page member variable as written on line #100 when folio is NULL as returned from the __filemap_get_folio() function call? Is this kind of intentional page-fault trigger for the system to handle a new/fresh page allocation?
2 folio = __filemap_get_folio(mapping, index, fgp_flags, gfp); 1 if (!folio || xa_is_value(folio)) 100 return &folio->page; 1 return folio_file_page(folio, index);
The code is part of commit ID c5255b421fd04
Thank you, ./drv
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