Here are some patches to fix page waiting-related issues in cachefiles and
afs[1]:
(1) In cachefiles, remove the use of the wait_bit_key struct to access
something that's actually in wait_page_key format. The proper struct
is now available in the header, so that should be used instead.
(2) Add a proper wait function for waiting killably on the page writeback
flag. This includes a recent bugfix here (presumably commit
c2407cf7d22d0c0d94cf20342b3b8f06f1d904e7).
(3) In afs, use the function added in (2) rather than using
wait_on_page_bit_killable() which doesn't have the aforementioned
bugfix.
Note that I modified this to work with the upstream code where the
page pointer isn't cached in a local variable.
The patches can be found here:
https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=afs-fixes
David
Link: https://lore.kernel.org/r/20210320054104.1300774-1-willy@xxxxxxxxxxxxx[1]
---
Matthew Wilcox (Oracle) (3):
fs/cachefiles: Remove wait_bit_key layout dependency
mm/writeback: Add wait_on_page_writeback_killable
afs: Use wait_on_page_writeback_killable
fs/afs/write.c | 3 +--
include/linux/pagemap.h | 1 +
mm/page-writeback.c | 16 ++++++++++++++++
3 files changed, 18 insertions(+), 2 deletions(-)
