From f8a83245d9ec685bc6aa6173d6765fe03e20688f Mon Sep 17 00:00:00 2001 From: Herve Poussineau Date: Sun, 24 Jan 2010 21:23:56 +0000 Subject: win32: pair qemu_memalign() with qemu_vfree() Win32 suffers from a very big memory leak when dealing with SCSI devices. Each read/write request allocates memory with qemu_memalign (ie VirtualAlloc) but frees it with qemu_free (ie free). Pair all qemu_memalign() calls with qemu_vfree() to prevent such leaks. Signed-off-by: Herve Poussineau Signed-off-by: Anthony Liguori --- block.c | 2 +- block/raw-posix.c | 2 +- exec.c | 2 +- hw/scsi-disk.c | 2 +- qemu-nbd.c | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) diff --git a/block.c b/block.c index 5f29020152..9c106a8e4d 100644 --- a/block.c +++ b/block.c @@ -1631,7 +1631,7 @@ static void multiwrite_user_cb(MultiwriteCB *mcb) for (i = 0; i < mcb->num_callbacks; i++) { mcb->callbacks[i].cb(mcb->callbacks[i].opaque, mcb->error); qemu_free(mcb->callbacks[i].free_qiov); - qemu_free(mcb->callbacks[i].free_buf); + qemu_vfree(mcb->callbacks[i].free_buf); } } diff --git a/block/raw-posix.c b/block/raw-posix.c index 325d2265f5..96f26173ef 100644 --- a/block/raw-posix.c +++ b/block/raw-posix.c @@ -591,7 +591,7 @@ static void raw_close(BlockDriverState *bs) close(s->fd); s->fd = -1; if (s->aligned_buf != NULL) - qemu_free(s->aligned_buf); + qemu_vfree(s->aligned_buf); } } diff --git a/exec.c b/exec.c index 1190591e93..76831a194f 100644 --- a/exec.c +++ b/exec.c @@ -3309,7 +3309,7 @@ void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len, if (is_write) { cpu_physical_memory_write(bounce.addr, bounce.buffer, access_len); } - qemu_free(bounce.buffer); + qemu_vfree(bounce.buffer); bounce.buffer = NULL; cpu_notify_map_clients(); } diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c index e3924dec9d..b34fbaa674 100644 --- a/hw/scsi-disk.c +++ b/hw/scsi-disk.c @@ -81,7 +81,7 @@ static SCSIDiskReq *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun) static void scsi_remove_request(SCSIDiskReq *r) { - qemu_free(r->iov.iov_base); + qemu_vfree(r->iov.iov_base); scsi_req_free(&r->req); } diff --git a/qemu-nbd.c b/qemu-nbd.c index 4463679758..eac0c21f1c 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -469,7 +469,7 @@ int main(int argc, char **argv) } } } while (persistent || nb_fds > 1); - qemu_free(data); + qemu_vfree(data); close(sharing_fds[0]); bdrv_close(bs); -- cgit v1.2.3