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| author | Qi Zheng <zhengqi.arch@bytedance.com> | 2023-02-12 12:10:27 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-17 05:43:54 +0100 |
| commit | 1bc67ca65b31bcb669c4eaca79b3c8d205bb212a (patch) | |
| tree | e1b62c4a59b7737ecd64d0b13f56241743f16e4a /mm/page_alloc.c | |
| parent | mm: multi-gen LRU: avoid futile retries (diff) | |
| download | linux-1bc67ca65b31bcb669c4eaca79b3c8d205bb212a.tar.xz linux-1bc67ca65b31bcb669c4eaca79b3c8d205bb212a.zip | |
mm: page_alloc: call panic() when memoryless node allocation fails
In free_area_init(), we will continue to run after allocation of
memoryless node pgdat fails. However, in the subsequent process (such as
when initializing zonelist), the case that NODE_DATA(nid) is NULL is not
handled, which will cause panic. Instead of this, it's better to call
panic() directly when the memory allocation fails during system boot.
Link: https://lkml.kernel.org/r/20230212111027.95520-1-zhengqi.arch@bytedance.com
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 21d820c42900..4b6bcec41c8f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -8405,11 +8405,9 @@ void __init free_area_init(unsigned long *max_zone_pfn) /* Allocator not initialized yet */ pgdat = arch_alloc_nodedata(nid); - if (!pgdat) { - pr_err("Cannot allocate %zuB for node %d.\n", - sizeof(*pgdat), nid); - continue; - } + if (!pgdat) + panic("Cannot allocate %zuB for node %d.\n", + sizeof(*pgdat), nid); arch_refresh_nodedata(nid, pgdat); free_area_init_memoryless_node(nid); |