diff options
| author | balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-10-01 01:43:16 +0000 |
|---|---|---|
| committer | balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-10-01 01:43:16 +0000 |
| commit | 5604e090cba05e9ef881b5ff9ce09c6a2a1a476b (patch) | |
| tree | e668aa867621dfb18d1d4494f179233985184915 /hw | |
| parent | e162cfb07b7bee2d4527b860f13de39429733dfa (diff) | |
Check that asynchronous (DMA) submission succeeds (Ian Jackson).
If it does not, abort the command immediately rather than dropping
it on the floor.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5369 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ide.c | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -738,6 +738,14 @@ static inline void ide_abort_command(IDEState *s) s->error = ABRT_ERR; } +static inline void ide_dma_submit_check(IDEState *s, + BlockDriverCompletionFunc *dma_cb, BMDMAState *bm) +{ + if (bm->aiocb) + return; + dma_cb(bm, -1); +} + static inline void ide_set_irq(IDEState *s) { BMDMAState *bm = s->bmdma; @@ -954,6 +962,7 @@ static void ide_read_dma_cb(void *opaque, int ret) #endif bm->aiocb = bdrv_aio_read(s->bs, sector_num, s->io_buffer, n, ide_read_dma_cb, bm); + ide_dma_submit_check(s, ide_read_dma_cb, bm); } static void ide_sector_read_dma(IDEState *s) @@ -1065,6 +1074,7 @@ static void ide_write_dma_cb(void *opaque, int ret) #endif bm->aiocb = bdrv_aio_write(s->bs, sector_num, s->io_buffer, n, ide_write_dma_cb, bm); + ide_dma_submit_check(s, ide_write_dma_cb, bm); } static void ide_sector_write_dma(IDEState *s) |