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| author | Jakub Kicinski <[email protected]> | 2022-11-29 21:04:52 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2022-11-29 21:04:52 +0000 |
| commit | f2bb566f5c977ff010baaa9e5e14d9a75b06e5f2 (patch) | |
| tree | 6359cc9169bd06bfb8b757a534c82886df605b71 /mm/failslab.c | |
| parent | udp_tunnel: Add checks for nla_nest_start() in __udp_tunnel_nic_dump_write() (diff) | |
| parent | Merge tag 'net-6.1-rc8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ne... (diff) | |
| download | kernel-f2bb566f5c977ff010baaa9e5e14d9a75b06e5f2.tar.gz kernel-f2bb566f5c977ff010baaa9e5e14d9a75b06e5f2.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
tools/lib/bpf/ringbuf.c
927cbb478adf ("libbpf: Handle size overflow for ringbuf mmap")
b486d19a0ab0 ("libbpf: checkpatch: Fixed code alignments in ringbuf.c")
https://lore.kernel.org/all/[email protected]/
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'mm/failslab.c')
| -rw-r--r-- | mm/failslab.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/mm/failslab.c b/mm/failslab.c index 58df9789f1d2..ffc420c0e767 100644 --- a/mm/failslab.c +++ b/mm/failslab.c @@ -16,6 +16,8 @@ static struct { bool __should_failslab(struct kmem_cache *s, gfp_t gfpflags) { + int flags = 0; + /* No fault-injection for bootstrap cache */ if (unlikely(s == kmem_cache)) return false; @@ -30,10 +32,16 @@ bool __should_failslab(struct kmem_cache *s, gfp_t gfpflags) if (failslab.cache_filter && !(s->flags & SLAB_FAILSLAB)) return false; + /* + * In some cases, it expects to specify __GFP_NOWARN + * to avoid printing any information(not just a warning), + * thus avoiding deadlocks. See commit 6b9dbedbe349 for + * details. + */ if (gfpflags & __GFP_NOWARN) - failslab.attr.no_warn = true; + flags |= FAULT_NOWARN; - return should_fail(&failslab.attr, s->object_size); + return should_fail_ex(&failslab.attr, s->object_size, flags); } static int __init setup_failslab(char *str) |