The 01/29/2021 03:18, Damien Le Moal wrote: > On 2021/01/29 2:23, Sergei Shtepa wrote: > > Hi all, > > > > I`m ready to suggest the blk_interposer again. > > blk_interposer allows to intercept bio requests, remap bio to > > another devices or add new bios. > > > > This version has support from device mapper. > > > > For the dm-linear device creation command, the `noexcl` parameter > > has been added, which allows to open block devices without > > FMODE_EXCL mode. It allows to create dm-linear device on a block > > device with an already mounted file system. > > The new ioctl DM_DEV_REMAP allows to enable and disable bio > > interception. > > > > Thus, it is possible to add the dm-device to the block layer stack > > without reconfiguring and rebooting. > > Please add the changelog here instead of adding it in each patch. And keep the > changelog for previous versions too (i.e. v1->v2 in this case) so that the > changes overall can be tracked. > > The proper formatting for the title should be [PATCH v3 X/Y] instead of adding > v3 in the title itself. With git format-patch, you can use "-v 3" option to > format this for you, or --subject-prefix="PATCH v3" option. Thanks. I think I need to work with the style of my patches. > > > > > > > Sergei Shtepa (2): > > block: blk_interposer > > [dm] blk_interposer for dm-linear > > > > block/bio.c | 2 + > > block/blk-core.c | 29 +++ > > block/blk-mq.c | 13 ++ > > block/genhd.c | 82 ++++++++ > > drivers/md/dm-core.h | 46 +++- > > drivers/md/dm-ioctl.c | 39 ++++ > > drivers/md/dm-linear.c | 17 +- > > drivers/md/dm-table.c | 12 +- > > drivers/md/dm.c | 383 ++++++++++++++++++++++++++++++++-- > > drivers/md/dm.h | 2 +- > > include/linux/blk-mq.h | 1 + > > include/linux/blk_types.h | 6 +- > > include/linux/device-mapper.h | 7 + > > include/linux/genhd.h | 19 ++ > > include/uapi/linux/dm-ioctl.h | 15 +- > > 15 files changed, 643 insertions(+), 30 deletions(-) > > > > > -- > Damien Le Moal > Western Digital Research > -- Sergei Shtepa Veeam Software developer. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
