A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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afs: Get rid of the afs_writeback record

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Get rid of the afs_writeback record that kAFS is using to match keys with
writes made by that key.

Instead, keep a list of keys that have a file open for writing and/or
sync'ing and iterate through those.

Signed-off-by: David Howells <[email protected]>
This commit is contained in:
David Howells 2017-11-02 15:27:52 +00:00
commit 4343d00872
7 changed files with 412 additions and 395 deletions
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1
mm/filemap.c
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@ -1041,6 +1041,7 @@ int wait_on_page_bit_killable(struct page *page, int bit_nr)
wait_queue_head_t *q = page_waitqueue(page);
return wait_on_page_bit_common(q, page, bit_nr, TASK_KILLABLE, false);
}
EXPORT_SYMBOL(wait_on_page_bit_killable);
/**
* add_page_wait_queue - Add an arbitrary waiter to a page's wait queue