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block: Free iovec arrays allocated by multiwrite_merge() 

A new iovec array is allocated when creating a merged write request.
This patch ensures that the iovec array is deleted in addition to its
qiov owner.

Reported-by: Leszek Urbanski <tygrys@moo.pl>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 1e1ea48d42)
This commit is contained in:
Stefan Hajnoczi 2010-04-21 20:35:45 +01:00 committed by Aurelien Jarno
parent 3597c9c1d5
commit 012d4869c1
1 changed files with 3 additions and 0 deletions
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3
block.c
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@ -1608,6 +1608,9 @@ static void multiwrite_user_cb(MultiwriteCB *mcb)
for (i = 0; i < mcb->num_callbacks; i++) { for (i = 0; i < mcb->num_callbacks; i++) {
mcb->callbacks[i].cb(mcb->callbacks[i].opaque, mcb->error); mcb->callbacks[i].cb(mcb->callbacks[i].opaque, mcb->error);
if (mcb->callbacks[i].free_qiov) {
qemu_iovec_destroy(mcb->callbacks[i].free_qiov);
}
qemu_free(mcb->callbacks[i].free_qiov); qemu_free(mcb->callbacks[i].free_qiov);
qemu_vfree(mcb->callbacks[i].free_buf); qemu_vfree(mcb->callbacks[i].free_buf);
} }