• Michal Hocko's avatar
    jbd2: revert must-not-fail allocation loops back to GFP_NOFAIL · 6ccaf3e2
    Michal Hocko authored
    This basically reverts 47def826 (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: default avatarMichal Hocko <mhocko@suse.cz>
    Signed-off-by: Theodore Ts'o's avatarTheodore Ts'o <tytso@mit.edu>
    Acked-by: default avatarDavid Rientjes <rientjes@google.com>
    6ccaf3e2
transaction.c 74.9 KB