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| author | Mel Gorman <mgorman@techsingularity.net> | 2023-01-13 14:12:16 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-03 09:33:12 +0300 |
| commit | 1ebbb21811b76c3b932959787f37985af36f62fa (patch) | |
| tree | a5bd6d1d349adfdaeb1f3a713d315123f26ba42c /drivers/iommu/tegra-smmu.c | |
| parent | ab3508854353793cd35e348fde89a5c09b2fd8b5 (diff) | |
| download | linux-1ebbb21811b76c3b932959787f37985af36f62fa.tar.xz | |
mm/page_alloc: explicitly define how __GFP_HIGH non-blocking allocations accesses reserves
GFP_ATOMIC allocations get flagged ALLOC_HARDER which is a vague
description. In preparation for the removal of GFP_ATOMIC redefine
__GFP_ATOMIC to simply mean non-blocking and renaming ALLOC_HARDER to
ALLOC_NON_BLOCK accordingly. __GFP_HIGH is required for access to
reserves but non-blocking is granted more access. For example, GFP_NOWAIT
is non-blocking but has no special access to reserves. A __GFP_NOFAIL
blocking allocation is granted access similar to __GFP_HIGH if the only
alternative is an OOM kill.
Link: https://lkml.kernel.org/r/20230113111217.14134-6-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: NeilBrown <neilb@suse.de>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers/iommu/tegra-smmu.c')
0 files changed, 0 insertions, 0 deletions