> + if (FolioWriteback(folio) &&
> + wait_on_folio_bit_killable(folio, PG_writeback) < 0)
> return VM_FAULT_RETRY;
This really screams for a proper wait_on_page_writeback_killable helper
rather than hardcoding the PG_* bit in a random file system. It also
seems to have
We must always wait on the folio, otherwise we won't be woken up.
This commit shrinks the kernel by 695 bytes, mostly due to moving
the page waitqueue lookup into wait_on_folio_bit_common().
Signed-off-by: Matthew Wilcox (Oracle)
---
fs/afs/write.c | 21
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