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| author | Paul E. McKenney <paulmck@kernel.org> | 2021-01-20 17:21:47 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-03-08 14:18:07 -0800 |
| commit | b01b405092b7940bd366053a27ed54a87c84e96a (patch) | |
| tree | 807a8fd79730fc35d6259bbf700b51c437c2d5b6 /kernel/rcu | |
| parent | 148e3731d124079a036b3acf780f3d35c1b9c0aa (diff) | |
| download | linux-b01b405092b7940bd366053a27ed54a87c84e96a.tar.gz linux-b01b405092b7940bd366053a27ed54a87c84e96a.tar.bz2 linux-b01b405092b7940bd366053a27ed54a87c84e96a.zip | |
kvfree_rcu: Use __GFP_NOMEMALLOC for single-argument kvfree_rcu()
This commit applies the __GFP_NOMEMALLOC gfp flag to memory allocations
carried out by the single-argument variant of kvfree_rcu(), thus avoiding
this can-sleep code path from dipping into the emergency reserves.
Acked-by: Michal Hocko <mhocko@suse.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 1f8c980f4190..08b50441ebe8 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -3519,7 +3519,7 @@ add_ptr_to_bulk_krc_lock(struct kfree_rcu_cpu **krcp, if (!bnode && can_alloc) { krc_this_cpu_unlock(*krcp, *flags); bnode = (struct kvfree_rcu_bulk_data *) - __get_free_page(GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_NOWARN); + __get_free_page(GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_NOMEMALLOC | __GFP_NOWARN); *krcp = krc_this_cpu_lock(flags); } |