diff options
Diffstat (limited to 'extras/mini-os/blkfront.c')
| -rw-r--r-- | extras/mini-os/blkfront.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/extras/mini-os/blkfront.c b/extras/mini-os/blkfront.c index f07900580b..881efd3055 100644 --- a/extras/mini-os/blkfront.c +++ b/extras/mini-os/blkfront.c @@ -258,7 +258,7 @@ void blkfront_aio(struct blkfront_aiocb *aiocbp, int write) start = (uintptr_t)aiocbp->aio_buf & PAGE_MASK; end = ((uintptr_t)aiocbp->aio_buf + aiocbp->aio_nbytes + PAGE_SIZE - 1) & PAGE_MASK; - n = (end - start) / PAGE_SIZE; + aiocbp->n = n = (end - start) / PAGE_SIZE; /* qemu's IDE max multsect is 16 (8KB) and SCSI max DMA was set to 32KB, * so max 44KB can't happen */ @@ -327,8 +327,8 @@ moretodo: case BLKIF_OP_WRITE: { struct blkfront_aiocb *aiocbp = (void*) (uintptr_t) rsp->id; - int n = (aiocbp->aio_nbytes + PAGE_SIZE - 1) / PAGE_SIZE, j; - for (j = 0; j < n; j++) + int j; + for (j = 0; j < aiocbp->n; j++) gnttab_end_access(aiocbp->gref[j]); /* Nota: callback frees aiocbp itself */ |