Hi, Leon, 1. I do change the title except for the version number itself:) But my English is quite bad, maybe the title is still quite stupid. I can update it according to your advice.
2. I catched the bug by reading the final code, not by bisect-ing the old commit. Do you means I should find out which commit introducing the bug? It will not be easily to say which it is because it is a "missing bug", rather than a "introduced bug". Indicate the commit may not help to remove a patch/commit from the stable tree. Could you please give more suggestion? Thanks. On Thu, Dec 29, 2016 at 10:17:56AM +0200, Leon Romanovsky wrote: > Date: Thu, 29 Dec 2016 10:17:56 +0200 > From: Leon Romanovsky <l...@kernel.org> > To: Kenneth Lee <liguo...@hisilicon.com> > CC: dledf...@redhat.com, sean.he...@intel.com, hal.rosenst...@gmail.com, > robin.mur...@arm.com, jroe...@suse.de, egtv...@samfundet.no, > vgu...@synopsys.com, dave.han...@linux.intel.com, lstoa...@gmail.com, > k...@kernel.org, seb...@linux.vnet.ibm.com, ma...@mellanox.com, > linux-r...@vger.kernel.org, linux-kernel@vger.kernel.org > Subject: Re: [PATCH v2] ib umem: bugfix: mixed put_pid()s in ib_umem_get() > User-Agent: Mutt/1.7.2 (2016-11-26) > Message-ID: <20161229081756.GI26885@mtr-leonro.local> > > On Thu, Dec 29, 2016 at 04:27:28PM +0800, Kenneth Lee wrote: > > There are two bugfixes in this patch: > > > > 1. When the execution go to the ib_umem_odp_get() path, pid should be put > > back. > > 2. When the memory allocation fail, the pid also should be put back before > > exit. > > > > Signed-off-by: Kenneth Lee <liguo...@hisilicon.com> > > Reviewed-by: Haggai Eran <hagg...@mellanox.com> > > --- > > Change from v1 to v2: > > Correcting the patch title and description > > I don't see any changes except version in the title. > What about anything like this? > [PATCH v3] IB/umem: Release pid in error and ODP flows > > And Fixes line please, it will help to forward it to stable trees. > > Thanks -- -Kenneth(Hisilicon)