Revision d7444794a02ff655eda87e3cc54e86b940e7736f authored by Christian Borntraeger on 19 February 2016, 12:11:46 UTC, committed by Paolo Bonzini on 24 February 2016, 13:47:46 UTC
In async_pf we try to allocate with NOWAIT to get an element quickly or fail. This code also handle failures gracefully. Lets silence potential page allocation failures under load. qemu-system-s39: page allocation failure: order:0,mode:0x2200000 [...] Call Trace: ([<00000000001146b8>] show_trace+0xf8/0x148) [<000000000011476a>] show_stack+0x62/0xe8 [<00000000004a36b8>] dump_stack+0x70/0x98 [<0000000000272c3a>] warn_alloc_failed+0xd2/0x148 [<000000000027709e>] __alloc_pages_nodemask+0x94e/0xb38 [<00000000002cd36a>] new_slab+0x382/0x400 [<00000000002cf7ac>] ___slab_alloc.constprop.30+0x2dc/0x378 [<00000000002d03d0>] kmem_cache_alloc+0x160/0x1d0 [<0000000000133db4>] kvm_setup_async_pf+0x6c/0x198 [<000000000013dee8>] kvm_arch_vcpu_ioctl_run+0xd48/0xd58 [<000000000012fcaa>] kvm_vcpu_ioctl+0x372/0x690 [<00000000002f66f6>] do_vfs_ioctl+0x3be/0x510 [<00000000002f68ec>] SyS_ioctl+0xa4/0xb8 [<0000000000781c5e>] system_call+0xd6/0x264 [<000003ffa24fa06a>] 0x3ffa24fa06a Cc: stable@vger.kernel.org Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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| File | Mode | Size |
|---|---|---|
| asymmetric_keys | ||
| async_tx | ||
| .gitignore | -rw-r--r-- | 12 bytes |
| 842.c | -rw-r--r-- | 2.6 KB |
| Kconfig | -rw-r--r-- | 46.8 KB |
| Makefile | -rw-r--r-- | 4.8 KB |
| ablk_helper.c | -rw-r--r-- | 4.2 KB |
| ablkcipher.c | -rw-r--r-- | 17.9 KB |
| aead.c | -rw-r--r-- | 10.0 KB |
| aes_generic.c | -rw-r--r-- | 62.0 KB |
| af_alg.c | -rw-r--r-- | 10.6 KB |
| ahash.c | -rw-r--r-- | 14.9 KB |
| akcipher.c | -rw-r--r-- | 3.9 KB |
| algapi.c | -rw-r--r-- | 20.6 KB |
| algboss.c | -rw-r--r-- | 6.3 KB |
| algif_aead.c | -rw-r--r-- | 13.6 KB |
| algif_hash.c | -rw-r--r-- | 9.6 KB |
| algif_rng.c | -rw-r--r-- | 5.2 KB |
| algif_skcipher.c | -rw-r--r-- | 21.0 KB |
| ansi_cprng.c | -rw-r--r-- | 10.9 KB |
| anubis.c | -rw-r--r-- | 27.8 KB |
| api.c | -rw-r--r-- | 13.8 KB |
| arc4.c | -rw-r--r-- | 3.4 KB |
| authenc.c | -rw-r--r-- | 13.7 KB |
| authencesn.c | -rw-r--r-- | 14.9 KB |
| blkcipher.c | -rw-r--r-- | 20.0 KB |
| blowfish_common.c | -rw-r--r-- | 15.7 KB |
| blowfish_generic.c | -rw-r--r-- | 3.4 KB |
| camellia_generic.c | -rw-r--r-- | 34.9 KB |
| cast5_generic.c | -rw-r--r-- | 20.9 KB |
| cast6_generic.c | -rw-r--r-- | 9.5 KB |
| cast_common.c | -rw-r--r-- | 13.1 KB |
| cbc.c | -rw-r--r-- | 7.5 KB |
| ccm.c | -rw-r--r-- | 22.5 KB |
| chacha20_generic.c | -rw-r--r-- | 6.0 KB |
| chacha20poly1305.c | -rw-r--r-- | 19.2 KB |
| chainiv.c | -rw-r--r-- | 7.6 KB |
| cipher.c | -rw-r--r-- | 3.3 KB |
| cmac.c | -rw-r--r-- | 7.5 KB |
| compress.c | -rw-r--r-- | 1.3 KB |
| crc32.c | -rw-r--r-- | 3.7 KB |
| crc32c_generic.c | -rw-r--r-- | 4.3 KB |
| crct10dif_common.c | -rw-r--r-- | 3.6 KB |
| crct10dif_generic.c | -rw-r--r-- | 3.2 KB |
| cryptd.c | -rw-r--r-- | 26.1 KB |
| crypto_null.c | -rw-r--r-- | 5.3 KB |
| crypto_user.c | -rw-r--r-- | 12.8 KB |
| crypto_wq.c | -rw-r--r-- | 972 bytes |
| ctr.c | -rw-r--r-- | 12.3 KB |
| cts.c | -rw-r--r-- | 9.8 KB |
| deflate.c | -rw-r--r-- | 5.4 KB |
| des_generic.c | -rw-r--r-- | 35.7 KB |
| drbg.c | -rw-r--r-- | 56.0 KB |
| ecb.c | -rw-r--r-- | 4.9 KB |
| echainiv.c | -rw-r--r-- | 5.9 KB |
| eseqiv.c | -rw-r--r-- | 5.9 KB |
| fcrypt.c | -rw-r--r-- | 18.0 KB |
| fips.c | -rw-r--r-- | 1.6 KB |
| gcm.c | -rw-r--r-- | 32.9 KB |
| gf128mul.c | -rw-r--r-- | 13.2 KB |
| ghash-generic.c | -rw-r--r-- | 3.7 KB |
| hash_info.c | -rw-r--r-- | 1.9 KB |
| hmac.c | -rw-r--r-- | 6.8 KB |
| internal.h | -rw-r--r-- | 4.1 KB |
| jitterentropy-kcapi.c | -rw-r--r-- | 5.7 KB |
| jitterentropy.c | -rw-r--r-- | 23.9 KB |
| keywrap.c | -rw-r--r-- | 12.6 KB |
| khazad.c | -rw-r--r-- | 51.8 KB |
| lrw.c | -rw-r--r-- | 9.2 KB |
| lz4.c | -rw-r--r-- | 2.5 KB |
| lz4hc.c | -rw-r--r-- | 2.6 KB |
| lzo.c | -rw-r--r-- | 2.6 KB |
| mcryptd.c | -rw-r--r-- | 17.9 KB |
| md4.c | -rw-r--r-- | 6.2 KB |
| md5.c | -rw-r--r-- | 4.1 KB |
| memneq.c | -rw-r--r-- | 6.1 KB |
| michael_mic.c | -rw-r--r-- | 3.6 KB |
| pcbc.c | -rw-r--r-- | 7.7 KB |
| pcompress.c | -rw-r--r-- | 2.9 KB |
| pcrypt.c | -rw-r--r-- | 13.2 KB |
| poly1305_generic.c | -rw-r--r-- | 8.0 KB |
| proc.c | -rw-r--r-- | 3.0 KB |
| ripemd.h | -rw-r--r-- | 974 bytes |
| rmd128.c | -rw-r--r-- | 10.2 KB |
| rmd160.c | -rw-r--r-- | 12.6 KB |
| rmd256.c | -rw-r--r-- | 10.6 KB |
| rmd320.c | -rw-r--r-- | 13.1 KB |
| rng.c | -rw-r--r-- | 5.0 KB |
| rsa-pkcs1pad.c | -rw-r--r-- | 16.3 KB |
| rsa.c | -rw-r--r-- | 6.5 KB |
| rsa_helper.c | -rw-r--r-- | 3.3 KB |
| rsaprivkey.asn1 | -rw-r--r-- | 231 bytes |
| rsapubkey.asn1 | -rw-r--r-- | 82 bytes |
| salsa20_generic.c | -rw-r--r-- | 6.7 KB |
| scatterwalk.c | -rw-r--r-- | 3.9 KB |
| seed.c | -rw-r--r-- | 17.4 KB |
| seqiv.c | -rw-r--r-- | 8.9 KB |
| serpent_generic.c | -rw-r--r-- | 21.2 KB |
| sha1_generic.c | -rw-r--r-- | 2.6 KB |
| sha256_generic.c | -rw-r--r-- | 11.0 KB |
| sha512_generic.c | -rw-r--r-- | 7.1 KB |
| shash.c | -rw-r--r-- | 17.5 KB |
| skcipher.c | -rw-r--r-- | 7.4 KB |
| tcrypt.c | -rw-r--r-- | 53.2 KB |
| tcrypt.h | -rw-r--r-- | 4.3 KB |
| tea.c | -rw-r--r-- | 6.6 KB |
| testmgr.c | -rw-r--r-- | 85.5 KB |
| testmgr.h | -rw-r--r-- | 1.2 MB |
| tgr192.c | -rw-r--r-- | 30.5 KB |
| twofish_common.c | -rw-r--r-- | 37.8 KB |
| twofish_generic.c | -rw-r--r-- | 6.3 KB |
| vmac.c | -rw-r--r-- | 18.9 KB |
| wp512.c | -rw-r--r-- | 59.8 KB |
| xcbc.c | -rw-r--r-- | 7.2 KB |
| xor.c | -rw-r--r-- | 4.0 KB |
| xts.c | -rw-r--r-- | 8.7 KB |
| zlib.c | -rw-r--r-- | 9.6 KB |
Computing file changes ...
