Re: [Qemu-devel] [PATCH v15 6/7] ext4: disable map_sync for async flush

2019-07-07 Thread Theodore Ts'o
On Fri, Jul 05, 2019 at 07:33:27PM +0530, Pankaj Gupta wrote: > Dont support 'MAP_SYNC' with non-DAX files and DAX files > with asynchronous dax_device. Virtio pmem provides > asynchronous host page cache flush mechanism. We don't > support 'MAP_SYNC' with virtio pmem and ext4. > > Signed-off-by:

[Qemu-devel] [PATCH v15 6/7] ext4: disable map_sync for async flush

2019-07-05 Thread Pankaj Gupta
Dont support 'MAP_SYNC' with non-DAX files and DAX files with asynchronous dax_device. Virtio pmem provides asynchronous host page cache flush mechanism. We don't support 'MAP_SYNC' with virtio pmem and ext4. Signed-off-by: Pankaj Gupta Reviewed-by: Jan Kara --- fs/ext4/file.c | 10 ++