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block/gluster: limit the transfer size to 512 MiB 

Several versions of GlusterFS (3.12? -> 6.0.1) fail when the
transfer size is greater or equal to 1024 MiB, so we are
limiting the transfer size to 512 MiB to avoid this rare issue.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1691320
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Stefano Garzarella 2019-03-28 11:52:27 +01:00 committed by Kevin Wolf
parent a3d6ae2299
commit de23e72bb7
1 changed files with 16 additions and 0 deletions
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16
block/gluster.c
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@ -9,6 +9,7 @@
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include <glusterfs/api/glfs.h>
#include "block/block_int.h"
#include "block/qdict.h"
@ -41,6 +42,12 @@
#define GLUSTER_DEBUG_MAX 9
#define GLUSTER_OPT_LOGFILE "logfile"
#define GLUSTER_LOGFILE_DEFAULT "-" /* handled in libgfapi as /dev/stderr */
/*
* Several versions of GlusterFS (3.12? -> 6.0.1) fail when the transfer size
* is greater or equal to 1024 MiB, so we are limiting the transfer size to 512
* MiB to avoid this rare issue.
*/
#define GLUSTER_MAX_TRANSFER (512 * MiB)
#define GERR_INDEX_HINT "hint: check in 'server' array index '%d'\n"
@ -887,6 +894,11 @@ out:
return ret;
}
static void qemu_gluster_refresh_limits(BlockDriverState *bs, Error **errp)
{
bs->bl.max_transfer = GLUSTER_MAX_TRANSFER;
}
static int qemu_gluster_reopen_prepare(BDRVReopenState *state,
BlockReopenQueue *queue, Error **errp)
{
@ -1544,6 +1556,7 @@ static BlockDriver bdrv_gluster = {
.bdrv_co_pwrite_zeroes = qemu_gluster_co_pwrite_zeroes,
#endif
.bdrv_co_block_status = qemu_gluster_co_block_status,
.bdrv_refresh_limits = qemu_gluster_refresh_limits,
.create_opts = &qemu_gluster_create_opts,
.strong_runtime_opts = gluster_strong_open_opts,
};
@ -1574,6 +1587,7 @@ static BlockDriver bdrv_gluster_tcp = {
.bdrv_co_pwrite_zeroes = qemu_gluster_co_pwrite_zeroes,
#endif
.bdrv_co_block_status = qemu_gluster_co_block_status,
.bdrv_refresh_limits = qemu_gluster_refresh_limits,
.create_opts = &qemu_gluster_create_opts,
.strong_runtime_opts = gluster_strong_open_opts,
};
@ -1604,6 +1618,7 @@ static BlockDriver bdrv_gluster_unix = {
.bdrv_co_pwrite_zeroes = qemu_gluster_co_pwrite_zeroes,
#endif
.bdrv_co_block_status = qemu_gluster_co_block_status,
.bdrv_refresh_limits = qemu_gluster_refresh_limits,
.create_opts = &qemu_gluster_create_opts,
.strong_runtime_opts = gluster_strong_open_opts,
};
@ -1640,6 +1655,7 @@ static BlockDriver bdrv_gluster_rdma = {
.bdrv_co_pwrite_zeroes = qemu_gluster_co_pwrite_zeroes,
#endif
.bdrv_co_block_status = qemu_gluster_co_block_status,
.bdrv_refresh_limits = qemu_gluster_refresh_limits,
.create_opts = &qemu_gluster_create_opts,
.strong_runtime_opts = gluster_strong_open_opts,
};