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-rw-r--r--mm/memcontrol.c26
1 files changed, 12 insertions, 14 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 702a81dfe72d..389b5766e74f 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -968,7 +968,7 @@ static __always_inline bool memcg_kmem_bypass(void)
return false;
/* Memcg to charge can't be determined. */
- if (in_interrupt() || !current->mm || (current->flags & PF_KTHREAD))
+ if (!in_task() || !current->mm || (current->flags & PF_KTHREAD))
return true;
return false;
@@ -7050,14 +7050,14 @@ void mem_cgroup_sk_free(struct sock *sk)
* mem_cgroup_charge_skmem - charge socket memory
* @memcg: memcg to charge
* @nr_pages: number of pages to charge
+ * @gfp_mask: reclaim mode
*
* Charges @nr_pages to @memcg. Returns %true if the charge fit within
- * @memcg's configured limit, %false if the charge had to be forced.
+ * @memcg's configured limit, %false if it doesn't.
*/
-bool mem_cgroup_charge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages)
+bool mem_cgroup_charge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages,
+ gfp_t gfp_mask)
{
- gfp_t gfp_mask = GFP_KERNEL;
-
if (!cgroup_subsys_on_dfl(memory_cgrp_subsys)) {
struct page_counter *fail;
@@ -7065,21 +7065,19 @@ bool mem_cgroup_charge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages)
memcg->tcpmem_pressure = 0;
return true;
}
- page_counter_charge(&memcg->tcpmem, nr_pages);
memcg->tcpmem_pressure = 1;
+ if (gfp_mask & __GFP_NOFAIL) {
+ page_counter_charge(&memcg->tcpmem, nr_pages);
+ return true;
+ }
return false;
}
- /* Don't block in the packet receive path */
- if (in_softirq())
- gfp_mask = GFP_NOWAIT;
-
- mod_memcg_state(memcg, MEMCG_SOCK, nr_pages);
-
- if (try_charge(memcg, gfp_mask, nr_pages) == 0)
+ if (try_charge(memcg, gfp_mask, nr_pages) == 0) {
+ mod_memcg_state(memcg, MEMCG_SOCK, nr_pages);
return true;
+ }
- try_charge(memcg, gfp_mask|__GFP_NOFAIL, nr_pages);
return false;
}