block/vmdk: add coroutine_fn annotations
These functions end up calling bdrv_create() implemented as generated_co_wrapper functions. In addition, they also happen to be always called in coroutine context, meaning all callers are coroutine_fn. This means that the g_c_w function will enter the qemu_in_coroutine() case and eventually suspend (or in other words call qemu_coroutine_yield()). Therefore we can mark such functions coroutine_fn too. Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Message-Id: <20221128142337.657646-6-eesposit@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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block/vmdk.c
36
block/vmdk.c
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@ -2285,10 +2285,11 @@ exit:
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return ret;
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}
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static int vmdk_create_extent(const char *filename, int64_t filesize,
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bool flat, bool compress, bool zeroed_grain,
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BlockBackend **pbb,
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QemuOpts *opts, Error **errp)
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static int coroutine_fn vmdk_create_extent(const char *filename,
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int64_t filesize, bool flat,
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bool compress, bool zeroed_grain,
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BlockBackend **pbb,
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QemuOpts *opts, Error **errp)
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{
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int ret;
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BlockBackend *blk = NULL;
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@ -2366,14 +2367,14 @@ static int filename_decompose(const char *filename, char *path, char *prefix,
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* non-split format.
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* idx >= 1: get the n-th extent if in a split subformat
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*/
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typedef BlockBackend *(*vmdk_create_extent_fn)(int64_t size,
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int idx,
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bool flat,
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bool split,
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bool compress,
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bool zeroed_grain,
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void *opaque,
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Error **errp);
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typedef BlockBackend * coroutine_fn (*vmdk_create_extent_fn)(int64_t size,
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int idx,
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bool flat,
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bool split,
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bool compress,
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bool zeroed_grain,
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void *opaque,
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Error **errp);
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static void vmdk_desc_add_extent(GString *desc,
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const char *extent_line_fmt,
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@ -2616,7 +2617,7 @@ typedef struct {
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QemuOpts *opts;
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} VMDKCreateOptsData;
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static BlockBackend *vmdk_co_create_opts_cb(int64_t size, int idx,
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static BlockBackend * coroutine_fn vmdk_co_create_opts_cb(int64_t size, int idx,
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bool flat, bool split, bool compress,
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bool zeroed_grain, void *opaque,
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Error **errp)
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@ -2768,10 +2769,11 @@ exit:
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return ret;
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}
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static BlockBackend *vmdk_co_create_cb(int64_t size, int idx,
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bool flat, bool split, bool compress,
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bool zeroed_grain, void *opaque,
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Error **errp)
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static BlockBackend * coroutine_fn vmdk_co_create_cb(int64_t size, int idx,
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bool flat, bool split,
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bool compress,
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bool zeroed_grain,
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void *opaque, Error **errp)
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{
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int ret;
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BlockDriverState *bs;
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