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bh=v1s3t/dRBy4GneDB2K8TpjvTo7ZENHwEgbFNG0JqQes=; b=FLcwMJRiMrINmZST5egzvSiWF6phRDiNtPU7HF2adZTL0YZhiPN1+6X7YEXBidbOB+s4Ir kLpPzi5AV80SKsXEAhenOYHmIFVCXG7PK8AKpPOwmZ1UapKpVmxrcmvaYebgDJbPc+fxx1 TvSXBMKsa67x0tZa+WPXVwWvdp0XyrU= X-MC-Unique: cwpNEo4bOYyQBUk8gH8NbA-1 From: Kevin Wolf To: qemu-block@nongnu.org Subject: [PULL 19/51] block: Pass BdrvChildRole to .inherit_options() Date: Fri, 15 May 2020 14:44:49 +0200 Message-Id: <20200515124521.335403-20-kwolf@redhat.com> In-Reply-To: <20200515124521.335403-1-kwolf@redhat.com> References: <20200515124521.335403-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.139.110.61; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/15 00:07:24 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, peter.maydell@linaro.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) Content-Type: text/plain; charset="utf-8" From: Max Reitz For now, all callers (effectively) pass 0 and no callee evaluates thie value. Later patches will change both. Signed-off-by: Max Reitz Reviewed-by: Eric Blake Message-Id: <20200513110544.176672-8-mreitz@redhat.com> Signed-off-by: Kevin Wolf --- include/block/block_int.h | 3 ++- block.c | 40 +++++++++++++++++++++++---------------- block/block-backend.c | 3 ++- block/vvfat.c | 3 ++- 4 files changed, 30 insertions(+), 19 deletions(-) diff --git a/include/block/block_int.h b/include/block/block_int.h index dc4bc486d6..8c1160a577 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -677,7 +677,8 @@ struct BdrvChildClass { * non-BDS parents. */ bool parent_is_bds; =20 - void (*inherit_options)(int *child_flags, QDict *child_options, + void (*inherit_options)(BdrvChildRole role, + int *child_flags, QDict *child_options, int parent_flags, QDict *parent_options); =20 void (*change_media)(BdrvChild *child, bool load); diff --git a/block.c b/block.c index 5d9a331f5b..40db0b78b9 100644 --- a/block.c +++ b/block.c @@ -77,6 +77,7 @@ static BlockDriverState *bdrv_open_inherit(const char *fi= lename, QDict *options, int flags, BlockDriverState *parent, const BdrvChildClass *child_cla= ss, + BdrvChildRole child_role, Error **errp); =20 /* If non-zero, use only whitelisted block drivers */ @@ -1153,7 +1154,8 @@ static void bdrv_temp_snapshot_options(int *child_fla= gs, QDict *child_options, * Returns the options and flags that bs->file should get if a protocol dr= iver * is expected, based on the given options and flags for the parent BDS */ -static void bdrv_inherited_options(int *child_flags, QDict *child_options, +static void bdrv_inherited_options(BdrvChildRole role, + int *child_flags, QDict *child_options, int parent_flags, QDict *parent_options) { int flags =3D parent_flags; @@ -1202,10 +1204,11 @@ const BdrvChildClass child_file =3D { * (and not only protocols) is permitted for it, based on the given option= s and * flags for the parent BDS */ -static void bdrv_inherited_fmt_options(int *child_flags, QDict *child_opti= ons, +static void bdrv_inherited_fmt_options(BdrvChildRole role, + int *child_flags, QDict *child_opti= ons, int parent_flags, QDict *parent_opt= ions) { - child_file.inherit_options(child_flags, child_options, + child_file.inherit_options(role, child_flags, child_options, parent_flags, parent_options); =20 *child_flags &=3D ~(BDRV_O_PROTOCOL | BDRV_O_NO_IO); @@ -1286,7 +1289,8 @@ static void bdrv_backing_detach(BdrvChild *c) * Returns the options and flags that bs->backing should get, based on the * given options and flags for the parent BDS */ -static void bdrv_backing_options(int *child_flags, QDict *child_options, +static void bdrv_backing_options(BdrvChildRole role, + int *child_flags, QDict *child_options, int parent_flags, QDict *parent_options) { int flags =3D parent_flags; @@ -2876,7 +2880,7 @@ int bdrv_open_backing_file(BlockDriverState *bs, QDic= t *parent_options, } =20 backing_hd =3D bdrv_open_inherit(backing_filename, reference, options,= 0, bs, - &child_backing, errp); + &child_backing, 0, errp); if (!backing_hd) { bs->open_flags |=3D BDRV_O_NO_BACKING; error_prepend(errp, "Could not open backing file: "); @@ -2911,7 +2915,7 @@ free_exit: static BlockDriverState * bdrv_open_child_bs(const char *filename, QDict *options, const char *bdref= _key, BlockDriverState *parent, const BdrvChildClass *child_c= lass, - bool allow_none, Error **errp) + BdrvChildRole child_role, bool allow_none, Error **errp) { BlockDriverState *bs =3D NULL; QDict *image_options; @@ -2942,7 +2946,7 @@ bdrv_open_child_bs(const char *filename, QDict *optio= ns, const char *bdref_key, } =20 bs =3D bdrv_open_inherit(filename, reference, image_options, 0, - parent, child_class, errp); + parent, child_class, child_role, errp); if (!bs) { goto done; } @@ -2976,7 +2980,7 @@ BdrvChild *bdrv_open_child(const char *filename, BlockDriverState *bs; =20 bs =3D bdrv_open_child_bs(filename, options, bdref_key, parent, child_= class, - allow_none, errp); + child_role, allow_none, errp); if (bs =3D=3D NULL) { return NULL; } @@ -3020,7 +3024,7 @@ BlockDriverState *bdrv_open_blockdev_ref(BlockdevRef = *ref, Error **errp) =20 } =20 - bs =3D bdrv_open_inherit(NULL, reference, qdict, 0, NULL, NULL, errp); + bs =3D bdrv_open_inherit(NULL, reference, qdict, 0, NULL, NULL, 0, err= p); obj =3D NULL; qobject_unref(obj); visit_free(v); @@ -3117,6 +3121,7 @@ static BlockDriverState *bdrv_open_inherit(const char= *filename, QDict *options, int flags, BlockDriverState *parent, const BdrvChildClass *child_cla= ss, + BdrvChildRole child_role, Error **errp) { int ret; @@ -3169,7 +3174,7 @@ static BlockDriverState *bdrv_open_inherit(const char= *filename, =20 if (child_class) { bs->inherits_from =3D parent; - child_class->inherit_options(&flags, options, + child_class->inherit_options(child_role, &flags, options, parent->open_flags, parent->options); } =20 @@ -3198,7 +3203,7 @@ static BlockDriverState *bdrv_open_inherit(const char= *filename, flags, options); /* Let bdrv_backing_options() override "read-only" */ qdict_del(options, BDRV_OPT_READ_ONLY); - bdrv_backing_options(&flags, options, flags, options); + bdrv_backing_options(0, &flags, options, flags, options); } =20 bs->open_flags =3D flags; @@ -3240,7 +3245,7 @@ static BlockDriverState *bdrv_open_inherit(const char= *filename, BlockDriverState *file_bs; =20 file_bs =3D bdrv_open_child_bs(filename, options, "file", bs, - &child_file, true, &local_err); + &child_file, 0, true, &local_err); if (local_err) { goto fail; } @@ -3385,7 +3390,7 @@ BlockDriverState *bdrv_open(const char *filename, con= st char *reference, QDict *options, int flags, Error **errp) { return bdrv_open_inherit(filename, reference, options, flags, NULL, - NULL, errp); + NULL, 0, errp); } =20 /* Return true if the NULL-terminated @list contains @str */ @@ -3482,6 +3487,7 @@ static BlockReopenQueue *bdrv_reopen_queue_child(Bloc= kReopenQueue *bs_queue, BlockDriverState *bs, QDict *options, const BdrvChildClass *kla= ss, + BdrvChildRole role, QDict *parent_options, int parent_flags, bool keep_old_opts) @@ -3537,7 +3543,8 @@ static BlockReopenQueue *bdrv_reopen_queue_child(Bloc= kReopenQueue *bs_queue, /* Inherit from parent node */ if (parent_options) { flags =3D 0; - klass->inherit_options(&flags, options, parent_flags, parent_optio= ns); + klass->inherit_options(role, &flags, options, + parent_flags, parent_options); } else { flags =3D bdrv_get_flags(bs); } @@ -3628,7 +3635,8 @@ static BlockReopenQueue *bdrv_reopen_queue_child(Bloc= kReopenQueue *bs_queue, } =20 bdrv_reopen_queue_child(bs_queue, child->bs, new_child_options, - child->klass, options, flags, child_keep_o= ld); + child->klass, child->role, options, flags, + child_keep_old); } =20 return bs_queue; @@ -3638,7 +3646,7 @@ BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue = *bs_queue, BlockDriverState *bs, QDict *options, bool keep_old_opts) { - return bdrv_reopen_queue_child(bs_queue, bs, options, NULL, NULL, 0, + return bdrv_reopen_queue_child(bs_queue, bs, options, NULL, 0, NULL, 0, keep_old_opts); } =20 diff --git a/block/block-backend.c b/block/block-backend.c index efc7acb3d8..5539ca8816 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -120,7 +120,8 @@ static QTAILQ_HEAD(, BlockBackend) block_backends =3D static QTAILQ_HEAD(, BlockBackend) monitor_block_backends =3D QTAILQ_HEAD_INITIALIZER(monitor_block_backends); =20 -static void blk_root_inherit_options(int *child_flags, QDict *child_option= s, +static void blk_root_inherit_options(BdrvChildRole role, + int *child_flags, QDict *child_option= s, int parent_flags, QDict *parent_optio= ns) { /* We're not supposed to call this function for root nodes */ diff --git a/block/vvfat.c b/block/vvfat.c index 6cf3c74fe3..4033e4f369 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -3128,7 +3128,8 @@ static BlockDriver vvfat_write_target =3D { .bdrv_co_pwritev =3D write_target_commit, }; =20 -static void vvfat_qcow_options(int *child_flags, QDict *child_options, +static void vvfat_qcow_options(BdrvChildRole role, + int *child_flags, QDict *child_options, int parent_flags, QDict *parent_options) { qdict_set_default_str(child_options, BDRV_OPT_READ_ONLY, "off"); --=20 2.25.4