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| author | Anthony Liguori <aliguori@us.ibm.com> | 2013-02-26 07:44:39 -0600 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2013-02-26 07:44:39 -0600 |
| commit | 864a556e9a800116a305f10fbb714268ca7e9bc3 (patch) | |
| tree | c9e5fdc33d2a1be16446c7504106b4f128e3d0cd /hw/scsi-disk.c | |
| parent | 9a1d7f00efd4b69f051d4223a70ca91af0ccb19d (diff) | |
| parent | bf3caa3dc17552b323cec6831301a22cfc98ecd5 (diff) | |
| download | qemu-864a556e9a800116a305f10fbb714268ca7e9bc3.tar.gz | |
Merge remote-tracking branch 'kwolf/for-anthony' into staging
# By Paolo Bonzini (7) and others
# Via Kevin Wolf
* kwolf/for-anthony: (22 commits)
pc: add compatibility machine types for 1.4
blockdev: enable discard by default
qemu-nbd: add --discard option
blockdev: add discard suboption to -drive
block: implement BDRV_O_UNMAP
block: complete all IOs before .bdrv_truncate
coroutine: trim down nesting level in perf_nesting test
coroutine: move pooling to common code
qemu-iotests: Test qcow2 image creation options
qemu-iotests: Add qemu-img compare test
qemu-img: Add compare subcommand
qemu-img: Add "Quiet mode" option
block: Add synchronous wrapper for bdrv_co_is_allocated_above
block: refuse negative iops and bps values
block: use Error in do_check_io_limits()
qcow2: support compressed clusters in BlockFragInfo
qemu-img: add compressed clusters to BlockFragInfo
qemu-img: fix missing space in qemu-img check output
qcow2: record fragmentation statistics during check
qcow2: introduce check_refcounts_l1/l2() flags
...
Diffstat (limited to 'hw/scsi-disk.c')
| -rw-r--r-- | hw/scsi-disk.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c index 28e75bbf5b..d41158693e 100644 --- a/hw/scsi-disk.c +++ b/hw/scsi-disk.c @@ -41,9 +41,11 @@ do { printf("scsi-disk: " fmt , ## __VA_ARGS__); } while (0) #include <scsi/sg.h> #endif -#define SCSI_DMA_BUF_SIZE 131072 -#define SCSI_MAX_INQUIRY_LEN 256 -#define SCSI_MAX_MODE_LEN 256 +#define SCSI_DMA_BUF_SIZE 131072 +#define SCSI_MAX_INQUIRY_LEN 256 +#define SCSI_MAX_MODE_LEN 256 + +#define DEFAULT_DISCARD_GRANULARITY 4096 typedef struct SCSIDiskState SCSIDiskState; @@ -2059,6 +2061,11 @@ static int scsi_initfn(SCSIDevice *dev) return -1; } + if (s->qdev.conf.discard_granularity == -1) { + s->qdev.conf.discard_granularity = + MAX(s->qdev.conf.logical_block_size, DEFAULT_DISCARD_GRANULARITY); + } + if (!s->version) { s->version = g_strdup(qemu_get_version()); } |