diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-09-04 19:00:35 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2013-09-06 15:25:09 +0200 |
| commit | 63390a8d14c9006f42bdaab22291c9c97676322d (patch) | |
| tree | 0dac7fafdcd9d6325d96af90cb0ae5e2bf79d3a0 /block | |
| parent | facd6e2b5c0217f9d9eeb2ee497dda28009518bd (diff) | |
raw-posix: return get_block_status data and flags
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/raw-posix.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/block/raw-posix.c b/block/raw-posix.c index dbc65b0a3d..d011cfdab6 100644 --- a/block/raw-posix.c +++ b/block/raw-posix.c @@ -1089,7 +1089,7 @@ static int64_t coroutine_fn raw_co_get_block_status(BlockDriverState *bs, int nb_sectors, int *pnum) { off_t start, data, hole; - int ret; + int64_t ret; ret = fd_open(bs); if (ret < 0) { @@ -1097,6 +1097,7 @@ static int64_t coroutine_fn raw_co_get_block_status(BlockDriverState *bs, } start = sector_num * BDRV_SECTOR_SIZE; + ret = BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID | start; #ifdef CONFIG_FIEMAP @@ -1114,7 +1115,7 @@ static int64_t coroutine_fn raw_co_get_block_status(BlockDriverState *bs, if (ioctl(s->fd, FS_IOC_FIEMAP, &f) == -1) { /* Assume everything is allocated. */ *pnum = nb_sectors; - return 1; + return ret; } if (f.fm.fm_mapped_extents == 0) { @@ -1141,7 +1142,7 @@ static int64_t coroutine_fn raw_co_get_block_status(BlockDriverState *bs, /* Most likely EINVAL. Assume everything is allocated. */ *pnum = nb_sectors; - return 1; + return ret; } if (hole > start) { @@ -1154,19 +1155,21 @@ static int64_t coroutine_fn raw_co_get_block_status(BlockDriverState *bs, } } #else - *pnum = nb_sectors; - return 1; + data = 0; + hole = start + nb_sectors * BDRV_SECTOR_SIZE; #endif if (data <= start) { /* On a data extent, compute sectors to the end of the extent. */ *pnum = MIN(nb_sectors, (hole - start) / BDRV_SECTOR_SIZE); - return 1; } else { /* On a hole, compute sectors to the beginning of the next extent. */ *pnum = MIN(nb_sectors, (data - start) / BDRV_SECTOR_SIZE); - return 0; + ret &= ~BDRV_BLOCK_DATA; + ret |= BDRV_BLOCK_ZERO; } + + return ret; } static coroutine_fn BlockDriverAIOCB *raw_aio_discard(BlockDriverState *bs, |