From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Wolfgang Bumiller <w.bumiller@proxmox.com>
-Date: Wed, 30 Nov 2016 10:27:47 +0100
+Date: Mon, 6 Apr 2020 12:16:38 +0200
Subject: [PATCH] PVE: [Up] glusterfs: allow partial reads
This should deal with qemu bug #1644754 until upstream
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/block/gluster.c b/block/gluster.c
-index 70c59db107..e8e2739b53 100644
+index 3eb6a05500..b612918ee8 100644
--- a/block/gluster.c
+++ b/block/gluster.c
-@@ -56,6 +56,7 @@ typedef struct GlusterAIOCB {
+@@ -57,6 +57,7 @@ typedef struct GlusterAIOCB {
int ret;
Coroutine *coroutine;
AioContext *aio_context;
} GlusterAIOCB;
typedef struct BDRVGlusterState {
-@@ -755,8 +756,10 @@ static void gluster_finish_aiocb(struct glfs_fd *fd, ssize_t ret,
+@@ -752,8 +753,10 @@ static void gluster_finish_aiocb(struct glfs_fd *fd, ssize_t ret,
acb->ret = 0; /* Success */
} else if (ret < 0) {
acb->ret = -errno; /* Read/Write failed */
}
aio_co_schedule(acb->aio_context, acb->coroutine);
-@@ -1017,6 +1020,7 @@ static coroutine_fn int qemu_gluster_co_pwrite_zeroes(BlockDriverState *bs,
+@@ -1021,6 +1024,7 @@ static coroutine_fn int qemu_gluster_co_pwrite_zeroes(BlockDriverState *bs,
acb.ret = 0;
acb.coroutine = qemu_coroutine_self();
acb.aio_context = bdrv_get_aio_context(bs);
ret = glfs_zerofill_async(s->fd, offset, size, gluster_finish_aiocb, &acb);
if (ret < 0) {
-@@ -1197,9 +1201,11 @@ static coroutine_fn int qemu_gluster_co_rw(BlockDriverState *bs,
+@@ -1202,9 +1206,11 @@ static coroutine_fn int qemu_gluster_co_rw(BlockDriverState *bs,
acb.aio_context = bdrv_get_aio_context(bs);
if (write) {
ret = glfs_preadv_async(s->fd, qiov->iov, qiov->niov, offset, 0,
gluster_finish_aiocb, &acb);
}
-@@ -1261,6 +1267,7 @@ static coroutine_fn int qemu_gluster_co_flush_to_disk(BlockDriverState *bs)
+@@ -1268,6 +1274,7 @@ static coroutine_fn int qemu_gluster_co_flush_to_disk(BlockDriverState *bs)
acb.ret = 0;
acb.coroutine = qemu_coroutine_self();
acb.aio_context = bdrv_get_aio_context(bs);
ret = glfs_fsync_async(s->fd, gluster_finish_aiocb, &acb);
if (ret < 0) {
-@@ -1307,6 +1314,7 @@ static coroutine_fn int qemu_gluster_co_pdiscard(BlockDriverState *bs,
+@@ -1314,6 +1321,7 @@ static coroutine_fn int qemu_gluster_co_pdiscard(BlockDriverState *bs,
acb.ret = 0;
acb.coroutine = qemu_coroutine_self();
acb.aio_context = bdrv_get_aio_context(bs);