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bcachefs: use memalloc_nofs_save() for vmalloc allocation

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet
2019-06-11 21:03:23 -04:00
committed by Kent Overstreet
parent 3e66981690
commit e0dfc08bc2
1 changed files with 4 additions and 0 deletions
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4
fs/bcachefs/btree_cache.c
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@@ -9,6 +9,7 @@
#include "trace.h"
#include <linux/prefetch.h>
#include <linux/sched/mm.h>
const char * const bch2_btree_ids[] = {
#define x(kwd, val, name) name,
@@ -509,7 +510,9 @@ struct btree *bch2_btree_node_mem_alloc(struct bch_fs *c)
struct btree_cache *bc = &c->btree_cache;
struct btree *b;
u64 start_time = local_clock();
unsigned flags;
flags = memalloc_nofs_save();
mutex_lock(&bc->lock);
/*
@@ -547,6 +550,7 @@ struct btree *bch2_btree_node_mem_alloc(struct bch_fs *c)
list_del_init(&b->list);
mutex_unlock(&bc->lock);
memalloc_nofs_restore(flags);
out:
b->flags = 0;
b->written = 0;