[dm-devel] [PATCH 0/9] barrier support for request-based dm
Kiyoshi Ueda
k-ueda at ct.jp.nec.com
Fri Oct 16 04:52:33 UTC 2009
Hi Alasdair,
This patch-set adds barrier support for request-based dm-multipath.
It is made on top of 2.6.32-rc4 + the patches below:
o http://git.kernel.org/?p=linux/kernel/git/axboe/linux-2.6-block.git;a=commit;h=a9327cac440be4d8333bba975cbbf76045096275
(Seperate read and write statistics of in_flight requests)
o The patches below in the Alasdair's editing tree:
dm-add-missing-del_gendisk-to-alloc_dev-error-path.patch
dm-dec_pending-needs-locking-to-save-error-value.patch
dm-ioctl-prefer-strlcpy-over-strncpy.patch
dm-trace-request-based-remapping.patch
Most patches are clean-ups and refactorings for preparation of
the last patch.
Please review and apply if no problem.
Summary of the patch-set:
1/9: dm core: clean up in-flight checking
2/9: rqdm core: map_request() takes clone instead of orig
3/9: rqdm core: alloc_rq_tio() takes gfp_mask
4/9: rqdm core: clean up request cloning
5/9: rqdm core: simplify suspend code
6/9: rqdm core: use md->pending for in_flight I/O counting
7/9: rqdm core: refactor completion functions
8/9: rqdm core: move dm_end_request()
9/9: rqdm core: add barrier support
drivers/md/dm.c | 582 +++++++++++++++++++++++++++++++-------------------------
1 file changed, 323 insertions(+), 259 deletions(-)
Thanks,
Kiyoshi Ueda
More information about the dm-devel
mailing list