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Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into staging

# gpg: Signature made Tue 26 Jul 2016 21:51:38 BST
# gpg:                using RSA key 0xBDBE7B27C0DE3057
# gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>"
# gpg:                 aka "Jeffrey Cody <jeff@codyprime.org>"
# gpg:                 aka "Jeffrey Cody <codyprime@gmail.com>"
# Primary key fingerprint: 9957 4B4D 3474 90E7 9D98  D624 BDBE 7B27 C0DE 3057

* remotes/cody/tags/block-pull-request:
  mirror: double performance of the bulk stage if the disc is full
  block/gluster: fix doc in the qapi schema and member name

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2016-07-27 16:31:01 +01:00
parent c1fdfe9fca 0965a41e99
commit df5c50a208
2 changed files with 11 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
block/mirror.c
View File

@ -23,7 +23,9 @@
#define SLICE_TIME 100000000ULL /* ns */
#define MAX_IN_FLIGHT 16
#define DEFAULT_MIRROR_BUF_SIZE (10 << 20)
#define MAX_IO_SECTORS ((1 << 20) >> BDRV_SECTOR_BITS) /* 1 Mb */
#define DEFAULT_MIRROR_BUF_SIZE \
(MAX_IN_FLIGHT * MAX_IO_SECTORS * BDRV_SECTOR_SIZE)
/* The mirroring buffer is a list of granularity-sized chunks.
* Free chunks are organized in a list.
@ -325,6 +327,8 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s)
int64_t end = s->bdev_length / BDRV_SECTOR_SIZE;
int sectors_per_chunk = s->granularity >> BDRV_SECTOR_BITS;
bool write_zeroes_ok = bdrv_can_write_zeroes_with_unmap(blk_bs(s->target));
int max_io_sectors = MAX((s->buf_size >> BDRV_SECTOR_BITS) / MAX_IN_FLIGHT,
MAX_IO_SECTORS);
sector_num = hbitmap_iter_next(&s->hbi);
if (sector_num < 0) {
@ -388,7 +392,9 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s)
nb_chunks * sectors_per_chunk,
&io_sectors, &file);
if (ret < 0) {
io_sectors = nb_chunks * sectors_per_chunk;
io_sectors = MIN(nb_chunks * sectors_per_chunk, max_io_sectors);
} else if (ret & BDRV_BLOCK_DATA) {
io_sectors = MIN(io_sectors, max_io_sectors);
}
io_sectors -= io_sectors % sectors_per_chunk;

6
qapi/block-core.json
View File

@ -1692,9 +1692,9 @@
# Drivers that are supported in block device operations.
#
# @host_device, @host_cdrom: Since 2.1
# @gluster: Since 2.7
#
# Since: 2.0
# @gluster: Since 2.7
##
{ 'enum': 'BlockdevDriver',
'data': [ 'archipelago', 'blkdebug', 'blkverify', 'bochs', 'cloop',
@ -2138,7 +2138,7 @@
#
# @path: absolute path to image file in gluster volume
#
# @server: gluster server description
# @server: gluster servers description
#
# @debug-level: #optional libgfapi log level (default '4' which is Error)
#
@ -2148,7 +2148,7 @@
'data': { 'volume': 'str',
'path': 'str',
'server': ['GlusterServer'],
'*debug_level': 'int' } }
'*debug-level': 'int' } }
##
# @BlockdevOptions