Re: [Qemu-devel] [PATCH V10 0/4] support MAP_SYNC for memory-backend-file

2019-01-22 Thread Yi Zhang
On 2019-01-22 at 22:53:36 -0500, Michael S. Tsirkin wrote: > On Wed, Jan 23, 2019 at 11:10:07AM +0800, Yi Zhang wrote: > > On 2019-01-22 at 22:01:58 -0500, Michael S. Tsirkin wrote: > > > On Wed, Jan 23, 2019 at 10:59:27AM +0800, Zhang, Yi wrote: > > > > From: "Zhang,Yi" > > > > > > > > Linux 4.1

Re: [Qemu-devel] [PATCH V10 0/4] support MAP_SYNC for memory-backend-file

2019-01-22 Thread Yi Zhang
On 2019-01-22 at 23:02:22 -0500, Michael S. Tsirkin wrote: > On Wed, Jan 23, 2019 at 11:10:07AM +0800, Yi Zhang wrote: > > On 2019-01-22 at 22:01:58 -0500, Michael S. Tsirkin wrote: > > > On Wed, Jan 23, 2019 at 10:59:27AM +0800, Zhang, Yi wrote: > > > > From: "Zhang,Yi" > > > > > > > > Linux 4.1

Re: [Qemu-devel] [PATCH V10 0/4] support MAP_SYNC for memory-backend-file

2019-01-22 Thread Michael S. Tsirkin
On Wed, Jan 23, 2019 at 11:10:07AM +0800, Yi Zhang wrote: > On 2019-01-22 at 22:01:58 -0500, Michael S. Tsirkin wrote: > > On Wed, Jan 23, 2019 at 10:59:27AM +0800, Zhang, Yi wrote: > > > From: "Zhang,Yi" > > > > > > Linux 4.15 introduces a new mmap flag MAP_SYNC, which can be used to > > > guara

Re: [Qemu-devel] [PATCH V10 0/4] support MAP_SYNC for memory-backend-file

2019-01-22 Thread Michael S. Tsirkin
On Wed, Jan 23, 2019 at 11:10:07AM +0800, Yi Zhang wrote: > On 2019-01-22 at 22:01:58 -0500, Michael S. Tsirkin wrote: > > On Wed, Jan 23, 2019 at 10:59:27AM +0800, Zhang, Yi wrote: > > > From: "Zhang,Yi" > > > > > > Linux 4.15 introduces a new mmap flag MAP_SYNC, which can be used to > > > guara

Re: [Qemu-devel] [PATCH V10 0/4] support MAP_SYNC for memory-backend-file

2019-01-22 Thread Yi Zhang
On 2019-01-22 at 22:01:58 -0500, Michael S. Tsirkin wrote: > On Wed, Jan 23, 2019 at 10:59:27AM +0800, Zhang, Yi wrote: > > From: "Zhang,Yi" > > > > Linux 4.15 introduces a new mmap flag MAP_SYNC, which can be used to > > guarantee the write persistence to mmap'ed files supporting DAX (e.g., > >

Re: [Qemu-devel] [PATCH V10 0/4] support MAP_SYNC for memory-backend-file

2019-01-22 Thread Michael S. Tsirkin
On Wed, Jan 23, 2019 at 10:59:27AM +0800, Zhang, Yi wrote: > From: "Zhang,Yi" > > Linux 4.15 introduces a new mmap flag MAP_SYNC, which can be used to > guarantee the write persistence to mmap'ed files supporting DAX (e.g., > files on ext4/xfs file system mounted with '-o dax'). > > A descriptio

[Qemu-devel] [PATCH V10 0/4] support MAP_SYNC for memory-backend-file

2019-01-22 Thread Zhang, Yi
From: "Zhang,Yi" Linux 4.15 introduces a new mmap flag MAP_SYNC, which can be used to guarantee the write persistence to mmap'ed files supporting DAX (e.g., files on ext4/xfs file system mounted with '-o dax'). A description of MAP_SYNC and MAP_SHARED_VALIDATE can be found at https://patchwo