linux-user/uname: Return correct uname string for x86_64

[qemu.git] / blockdev.c

diff --git a/blockdev.c b/blockdev.c
index 9b5261b765988930ad7408441dca50e550edbaf5..9b0f8ac45ea0c6f6cd5e79c3101f51d96f4a9c0d 100644 (file)
--- a/blockdev.c
+++ b/blockdev.c
@@ -106,7 +106,7 @@ void blockdev_auto_del(BlockDriverState *bs)
     DriveInfo *dinfo = drive_get_by_blockdev(bs);
 
     if (dinfo && dinfo->auto_del) {
-        drive_put_ref(dinfo);
+        drive_del(dinfo);
     }
 }
 
@@ -213,7 +213,7 @@ static void bdrv_format_print(void *opaque, const char *name)
     error_printf(" %s", name);
 }
 
-static void drive_uninit(DriveInfo *dinfo)
+void drive_del(DriveInfo *dinfo)
 {
     if (dinfo->opts) {
         qemu_opts_del(dinfo->opts);
@@ -226,19 +226,6 @@ static void drive_uninit(DriveInfo *dinfo)
     g_free(dinfo);
 }
 
-void drive_put_ref(DriveInfo *dinfo)
-{
-    assert(dinfo->refcount);
-    if (--dinfo->refcount == 0) {
-        drive_uninit(dinfo);
-    }
-}
-
-void drive_get_ref(DriveInfo *dinfo)
-{
-    dinfo->refcount++;
-}
-
 typedef struct {
     QEMUBH *bh;
     BlockDriverState *bs;
@@ -329,7 +316,6 @@ static DriveInfo *blockdev_init(const char *file, QDict *bs_opts,
                                 Error **errp)
 {
     const char *buf;
-    const char *serial;
     int ro = 0;
     int bdrv_flags = 0;
     int on_read_error, on_write_error;
@@ -371,8 +357,6 @@ static DriveInfo *blockdev_init(const char *file, QDict *bs_opts,
     ro = qemu_opt_get_bool(opts, "read-only", 0);
     copy_on_read = qemu_opt_get_bool(opts, "copy-on-read", false);
 
-    serial = qemu_opt_get(opts, "serial");
-
     if ((buf = qemu_opt_get(opts, "discard")) != NULL) {
         if (bdrv_parse_discard_flags(buf, &bdrv_flags) != 0) {
             error_setg(errp, "invalid discard option");
@@ -500,10 +484,6 @@ static DriveInfo *blockdev_init(const char *file, QDict *bs_opts,
     dinfo->bdrv->open_flags = snapshot ? BDRV_O_SNAPSHOT : 0;
     dinfo->bdrv->read_only = ro;
     dinfo->bdrv->detect_zeroes = detect_zeroes;
-    dinfo->refcount = 1;
-    if (serial != NULL) {
-        dinfo->serial = g_strdup(serial);
-    }
     QTAILQ_INSERT_TAIL(&drives, dinfo, next);
 
     bdrv_set_on_error(dinfo->bdrv, on_read_error, on_write_error);
@@ -629,6 +609,10 @@ QemuOptsList qemu_legacy_drive_opts = {
             .name = "addr",
             .type = QEMU_OPT_STRING,
             .help = "pci address (virtio only)",
+        },{
+            .name = "serial",
+            .type = QEMU_OPT_STRING,
+            .help = "disk serial number",
         },{
             .name = "file",
             .type = QEMU_OPT_STRING,
@@ -658,7 +642,7 @@ QemuOptsList qemu_legacy_drive_opts = {
     },
 };
 
-DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
+DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type)
 {
     const char *value;
     DriveInfo *dinfo = NULL;
@@ -672,6 +656,7 @@ DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
     const char *werror, *rerror;
     bool read_only = false;
     bool copy_on_read;
+    const char *serial;
     const char *filename;
     Error *local_err = NULL;
 
@@ -875,6 +860,9 @@ DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
         goto fail;
     }
 
+    /* Serial number */
+    serial = qemu_opt_get(legacy_opts, "serial");
+
     /* no id supplied -> create one */
     if (qemu_opts_id(all_opts) == NULL) {
         char *new_id;
@@ -965,6 +953,8 @@ DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
     dinfo->unit = unit_id;
     dinfo->devaddr = devaddr;
 
+    dinfo->serial = g_strdup(serial);
+
     switch(type) {
     case IF_IDE:
     case IF_SCSI:
@@ -1703,6 +1693,7 @@ void qmp_block_set_io_throttle(const char *device, int64_t bps, int64_t bps_rd,
 {
     ThrottleConfig cfg;
     BlockDriverState *bs;
+    AioContext *aio_context;
 
     bs = bdrv_find(device);
     if (!bs) {
@@ -1746,6 +1737,9 @@ void qmp_block_set_io_throttle(const char *device, int64_t bps, int64_t bps_rd,
         return;
     }
 
+    aio_context = bdrv_get_aio_context(bs);
+    aio_context_acquire(aio_context);
+
     if (!bs->io_limits_enabled && throttle_enabled(&cfg)) {
         bdrv_io_limits_enable(bs);
     } else if (bs->io_limits_enabled && !throttle_enabled(&cfg)) {
@@ -1755,6 +1749,8 @@ void qmp_block_set_io_throttle(const char *device, int64_t bps, int64_t bps_rd,
     if (bs->io_limits_enabled) {
         bdrv_set_io_limits(bs, &cfg);
     }
+
+    aio_context_release(aio_context);
 }
 
 int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
@@ -1791,7 +1787,7 @@ int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
         bdrv_set_on_error(bs, BLOCKDEV_ON_ERROR_REPORT,
                           BLOCKDEV_ON_ERROR_REPORT);
     } else {
-        drive_uninit(drive_get_by_blockdev(bs));
+        drive_del(drive_get_by_blockdev(bs));
     }
 
     return 0;
@@ -2334,9 +2330,9 @@ void qmp_blockdev_add(BlockdevOptions *options, Error **errp)
         goto fail;
     }
 
-    /* TODO Sort it out in raw-posix and drive_init: Reject aio=native with
+    /* TODO Sort it out in raw-posix and drive_new(): Reject aio=native with
      * cache.direct=false instead of silently switching to aio=threads, except
-     * if called from drive_init.
+     * when called from drive_new().
      *
      * For now, simply forbidding the combination for all drivers will do. */
     if (options->has_aio && options->aio == BLOCKDEV_AIO_OPTIONS_NATIVE) {
@@ -2368,7 +2364,7 @@ void qmp_blockdev_add(BlockdevOptions *options, Error **errp)
     }
 
     if (bdrv_key_required(dinfo->bdrv)) {
-        drive_uninit(dinfo);
+        drive_del(dinfo);
         error_setg(errp, "blockdev-add doesn't support encrypted devices");
         goto fail;
     }
@@ -2431,10 +2427,6 @@ QemuOptsList qemu_common_drive_opts = {
             .name = "format",
             .type = QEMU_OPT_STRING,
             .help = "disk format (raw, qcow2, ...)",
-        },{
-            .name = "serial",
-            .type = QEMU_OPT_STRING,
-            .help = "disk serial number",
         },{
             .name = "rerror",
             .type = QEMU_OPT_STRING,