From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Romanovsky Subject: Re: [PATCH v2 1/2] IB/mlx5: use kvmalloc_array for mlx5_ib_wq Date: Wed, 16 Aug 2017 16:57:57 +0300 Message-ID: <20170816135757.GO24282@mtr-leonro.local> References: <20170816133123.20497-1-dongyang.li@anu.edu.au> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="eMGrAD5L3cjpiKtl" Return-path: Content-Disposition: inline In-Reply-To: <20170816133123.20497-1-dongyang.li-FCV4sgi5zeUQrrorzV6ljw@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Li Dongyang Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org --eMGrAD5L3cjpiKtl Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Aug 16, 2017 at 11:31:22PM +1000, Li Dongyang wrote: > We observed multiple times on our Lustre OSS servers that when > the system memory is fragmented, kmalloc() in create_kernel_qp() > could fail order 4/5 allocations while we still have many free pages. > > Switch to kvmalloc_array() to allow the operation to contine. > > Signed-off-by: Li Dongyang > --- > drivers/infiniband/hw/mlx5/qp.c | 35 ++++++++++++++++++++--------------- > drivers/infiniband/hw/mlx5/srq.c | 4 ++-- > 2 files changed, 22 insertions(+), 17 deletions(-) > Thanks, Acked-by: Leon Romanovsky --eMGrAD5L3cjpiKtl Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEkhr/r4Op1/04yqaB5GN7iDZyWKcFAlmUT2UACgkQ5GN7iDZy WKdiKRAAhAKe8ML1XEmmsrEJQTKR08F4IBAVtXmuqMPqktQcTCZbwn6zJhbzT5Pp bZSQVBMY9FgvvS9sRjo4njVSOR/jCkCK7hH/2xawqGqGKtkPQse6E+4I2VfD0pPO 8v1uhs/DvAjVTyvNFd18eZIV597B5blrQorQCJcxt92eJwRXKoIBAzQ4d+23sbHg Ck21dlDO8F+5KnGViWtZOBmobs+gPes3SkN4J8LqTCcaCib2F7KpUhy85+te+95x UlAwbQCfy/5yQaZYeO3LLX1B7V+DyTu0KOqOkcEFiDiE8f8Pq0KlQOZP96QtD1rZ KoQ2SMXPs7gNdwvP0jRuBfjjhC0+pkHFX6BVIf5kWQPn9QLIYD9TXlj0kkbDWqw4 Ps+7KfV8zj6Vfg0cPVg1I67X/RI924/91p6Jfurf891GqkID2TVum7PXcagWNR/N Q7gxSp8uUJf+pGncEv+13L82JnPxNZFHhDsBW/UxtTl9ZLsBwidPGmfGtyU6MEHM KMiqATjsk/ydhKqRnwkrgxwe7AZPNJnJBjFM2MJjSKMu0g9UnE3ppPW2KojzqBAo hN5ho+RPGRTMzZh9kWkSB5sx2vo7vE7jhfnAlfKeBVHTpFBQsciUs89tt95oDTSG j/QM7Ik5PF5wyXL2vCSCeBvKoUVfqd3E6YlNCoZMc47ERnX+6Yo= =QlSC -----END PGP SIGNATURE----- --eMGrAD5L3cjpiKtl-- -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html