From: Vivek Goyal <vgoyal@redhat.com> To: linux-fsdevel@vger.kernel.org, miklos@szeredi.hu Cc: virtio-fs@redhat.com Subject: Re: [PATCH v2 0/6] fuse: Implement FUSE_HANDLE_KILLPRIV_V2 and enable SB_NOSEC Date: Wed, 16 Sep 2020 12:38:40 -0400 [thread overview] Message-ID: <20200916163840.GA6124@redhat.com> (raw) In-Reply-To: <20200916161737.38028-1-vgoyal@redhat.com> On Wed, Sep 16, 2020 at 12:17:31PM -0400, Vivek Goyal wrote: > Hi All, > > Please find attached V2 of the patches to enable SB_NOSEC for fuse. I > posted V1 here. I have posted corresonding qemu/virtiofsd change patch here. https://www.redhat.com/archives/virtio-fs/2020-September/msg00061.html Thanks Vivek > > https://lore.kernel.org/linux-fsdevel/20200724183812.19573-1-vgoyal@redhat.com/ > > I have generated these patches on top of. > > https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git/log/?h=for-next > > Previously I was not keen on implementing FUSE_HANDLE_KILLPRIV_V2 and > implemented another idea to enable SB_NOSEC conditional on server > declaring that filesystem is not shared. But that did not go too > far when it came to requirements for virtiofs. > > https://lore.kernel.org/linux-fsdevel/20200901204045.1250822-1-vgoyal@redhat.com/ > > So I went back to having another look at implementing FUSE_HANDLE_KILLPRIV_V2 > and I think it fits nicely and should work nicely with wide variety of > use cases. > > I have taken care of feedback from last round. For the case of random > write peformance has jumped from 50MB/s to 250MB/s. So I am really > looking forward to these changes so that fuse/virtiofs performance > can be improved. > > Thanks > Vivek > > Vivek Goyal (6): > fuse: Introduce the notion of FUSE_HANDLE_KILLPRIV_V2 > fuse: Set FUSE_WRITE_KILL_PRIV in cached write path > fuse: setattr should set FATTR_KILL_PRIV upon size change > fuse: Kill suid/sgid using ATTR_MODE if it is not truncate > fuse: Add a flag FUSE_OPEN_KILL_PRIV for open() request > virtiofs: Support SB_NOSEC flag to improve direct write performance > > fs/fuse/dir.c | 19 ++++++++++++++++++- > fs/fuse/file.c | 7 +++++++ > fs/fuse/fuse_i.h | 6 ++++++ > fs/fuse/inode.c | 17 ++++++++++++++++- > include/uapi/linux/fuse.h | 18 +++++++++++++++++- > 5 files changed, 64 insertions(+), 3 deletions(-) > > -- > 2.25.4 >
WARNING: multiple messages have this Message-ID (diff)
From: Vivek Goyal <vgoyal@redhat.com> To: linux-fsdevel@vger.kernel.org, miklos@szeredi.hu Cc: virtio-fs@redhat.com Subject: Re: [Virtio-fs] [PATCH v2 0/6] fuse: Implement FUSE_HANDLE_KILLPRIV_V2 and enable SB_NOSEC Date: Wed, 16 Sep 2020 12:38:40 -0400 [thread overview] Message-ID: <20200916163840.GA6124@redhat.com> (raw) In-Reply-To: <20200916161737.38028-1-vgoyal@redhat.com> On Wed, Sep 16, 2020 at 12:17:31PM -0400, Vivek Goyal wrote: > Hi All, > > Please find attached V2 of the patches to enable SB_NOSEC for fuse. I > posted V1 here. I have posted corresonding qemu/virtiofsd change patch here. https://www.redhat.com/archives/virtio-fs/2020-September/msg00061.html Thanks Vivek > > https://lore.kernel.org/linux-fsdevel/20200724183812.19573-1-vgoyal@redhat.com/ > > I have generated these patches on top of. > > https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git/log/?h=for-next > > Previously I was not keen on implementing FUSE_HANDLE_KILLPRIV_V2 and > implemented another idea to enable SB_NOSEC conditional on server > declaring that filesystem is not shared. But that did not go too > far when it came to requirements for virtiofs. > > https://lore.kernel.org/linux-fsdevel/20200901204045.1250822-1-vgoyal@redhat.com/ > > So I went back to having another look at implementing FUSE_HANDLE_KILLPRIV_V2 > and I think it fits nicely and should work nicely with wide variety of > use cases. > > I have taken care of feedback from last round. For the case of random > write peformance has jumped from 50MB/s to 250MB/s. So I am really > looking forward to these changes so that fuse/virtiofs performance > can be improved. > > Thanks > Vivek > > Vivek Goyal (6): > fuse: Introduce the notion of FUSE_HANDLE_KILLPRIV_V2 > fuse: Set FUSE_WRITE_KILL_PRIV in cached write path > fuse: setattr should set FATTR_KILL_PRIV upon size change > fuse: Kill suid/sgid using ATTR_MODE if it is not truncate > fuse: Add a flag FUSE_OPEN_KILL_PRIV for open() request > virtiofs: Support SB_NOSEC flag to improve direct write performance > > fs/fuse/dir.c | 19 ++++++++++++++++++- > fs/fuse/file.c | 7 +++++++ > fs/fuse/fuse_i.h | 6 ++++++ > fs/fuse/inode.c | 17 ++++++++++++++++- > include/uapi/linux/fuse.h | 18 +++++++++++++++++- > 5 files changed, 64 insertions(+), 3 deletions(-) > > -- > 2.25.4 >
next prev parent reply other threads:[~2020-09-16 19:06 UTC|newest] Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-09-16 16:17 [PATCH v2 0/6] fuse: Implement FUSE_HANDLE_KILLPRIV_V2 and enable SB_NOSEC Vivek Goyal 2020-09-16 16:17 ` [Virtio-fs] " Vivek Goyal 2020-09-16 16:17 ` [PATCH v2 1/6] fuse: Introduce the notion of FUSE_HANDLE_KILLPRIV_V2 Vivek Goyal 2020-09-16 16:17 ` [Virtio-fs] " Vivek Goyal 2020-09-16 16:17 ` [PATCH v2 2/6] fuse: Set FUSE_WRITE_KILL_PRIV in cached write path Vivek Goyal 2020-09-16 16:17 ` [Virtio-fs] " Vivek Goyal 2020-09-16 16:17 ` [PATCH v2 3/6] fuse: setattr should set FATTR_KILL_PRIV upon size change Vivek Goyal 2020-09-16 16:17 ` [Virtio-fs] " Vivek Goyal 2020-09-16 16:17 ` [PATCH v2 4/6] fuse: Kill suid/sgid using ATTR_MODE if it is not truncate Vivek Goyal 2020-09-16 16:17 ` [Virtio-fs] " Vivek Goyal 2020-09-22 13:56 ` Miklos Szeredi 2020-09-22 13:56 ` [Virtio-fs] " Miklos Szeredi 2020-09-22 20:08 ` Vivek Goyal 2020-09-22 20:08 ` [Virtio-fs] " Vivek Goyal 2020-09-22 21:25 ` Miklos Szeredi 2020-09-22 21:25 ` [Virtio-fs] " Miklos Szeredi 2020-09-22 21:31 ` Vivek Goyal 2020-09-22 21:31 ` [Virtio-fs] " Vivek Goyal 2020-09-16 16:17 ` [PATCH v2 5/6] fuse: Add a flag FUSE_OPEN_KILL_PRIV for open() request Vivek Goyal 2020-09-16 16:17 ` [Virtio-fs] " Vivek Goyal 2020-09-16 16:17 ` [PATCH v2 6/6] virtiofs: Support SB_NOSEC flag to improve direct write performance Vivek Goyal 2020-09-16 16:17 ` [Virtio-fs] " Vivek Goyal 2020-09-16 16:38 ` Vivek Goyal [this message] 2020-09-16 16:38 ` [Virtio-fs] [PATCH v2 0/6] fuse: Implement FUSE_HANDLE_KILLPRIV_V2 and enable SB_NOSEC Vivek Goyal
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