linux/fs/jbd2
Michal Hocko 6ccaf3e2f3 jbd2: revert must-not-fail allocation loops back to GFP_NOFAIL
This basically reverts 47def82672 (jbd2: Remove __GFP_NOFAIL from jbd2
layer). The deprecation of __GFP_NOFAIL was a bad choice because it led
to open coding the endless loop around the allocator rather than
removing the dependency on the non failing allocation. So the
deprecation was a clear failure and the reality tells us that
__GFP_NOFAIL is not even close to go away.

It is still true that __GFP_NOFAIL allocations are generally discouraged
and new uses should be evaluated and an alternative (pre-allocations or
reservations) should be considered but it doesn't make any sense to lie
the allocator about the requirements. Allocator can take steps to help
making a progress if it knows the requirements.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Acked-by: David Rientjes <rientjes@google.com>
2015-06-08 10:53:10 -04:00
..
checkpoint.c jbd2: simplify calling convention around __jbd2_journal_clean_checkpoint_list 2014-09-18 00:58:12 -04:00
commit.c jbd2: fix descriptor block size handling errors with journal_csum 2014-08-28 22:22:29 -04:00
journal.c jbd2: revert must-not-fail allocation loops back to GFP_NOFAIL 2015-06-08 10:53:10 -04:00
Kconfig
Makefile
recovery.c jbd2: fix r_count overflows leading to buffer overflow in journal recovery 2015-05-14 19:11:50 -04:00
revoke.c jbd2: fix r_count overflows leading to buffer overflow in journal recovery 2015-05-14 19:11:50 -04:00
transaction.c jbd2: revert must-not-fail allocation loops back to GFP_NOFAIL 2015-06-08 10:53:10 -04:00