{"id":1307000,"url":"http://patchwork.ozlabs.org/api/patches/1307000/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/573172ba772686876365f9d80276da3bd328f283.1591801197.git.berto@igalia.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<573172ba772686876365f9d80276da3bd328f283.1591801197.git.berto@igalia.com>","list_archive_url":null,"date":"2020-06-10T15:02:49","name":"[v8,11/34] qcow2: Add offset_into_subcluster() and size_to_subclusters()","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"38cda9b2d1ce2a34e49782039d9c2b4c7f819d42","submitter":{"id":65704,"url":"http://patchwork.ozlabs.org/api/people/65704/?format=json","name":"Alberto Garcia","email":"berto@igalia.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/573172ba772686876365f9d80276da3bd328f283.1591801197.git.berto@igalia.com/mbox/","series":[{"id":182563,"url":"http://patchwork.ozlabs.org/api/series/182563/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=182563","date":"2020-06-10T15:02:49","name":"Add subcluster allocation to qcow2","version":8,"mbox":"http://patchwork.ozlabs.org/series/182563/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/1307000/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/1307000/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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envelope-from=berto@igalia.com;\n helo=fanzine.igalia.com","X-detected-operating-system":"by eggs.gnu.org: First seen = 2020/06/10 11:03:39","X-ACL-Warn":"Detected OS = Linux 2.2.x-3.x (no timestamps) [generic] [fuzzy]","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, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001,\n 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":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Cc":"Kevin Wolf ,\n Vladimir Sementsov-Ogievskiy ,\n Alberto Garcia , qemu-block@nongnu.org,\n Derek Su , Max Reitz ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n "},"content":"Like offset_into_cluster() and size_to_clusters(), but for\nsubclusters.\n\nSigned-off-by: Alberto Garcia \nReviewed-by: Eric Blake \n---\n block/qcow2.h | 10 ++++++++++\n 1 file changed, 10 insertions(+)","diff":"diff --git a/block/qcow2.h b/block/qcow2.h\nindex 2503374677..4fe31adfd3 100644\n--- a/block/qcow2.h\n+++ b/block/qcow2.h\n@@ -555,11 +555,21 @@ static inline int64_t offset_into_cluster(BDRVQcow2State *s, int64_t offset)\n return offset & (s->cluster_size - 1);\n }\n \n+static inline int64_t offset_into_subcluster(BDRVQcow2State *s, int64_t offset)\n+{\n+ return offset & (s->subcluster_size - 1);\n+}\n+\n static inline uint64_t size_to_clusters(BDRVQcow2State *s, uint64_t size)\n {\n return (size + (s->cluster_size - 1)) >> s->cluster_bits;\n }\n \n+static inline uint64_t size_to_subclusters(BDRVQcow2State *s, uint64_t size)\n+{\n+ return (size + (s->subcluster_size - 1)) >> s->subcluster_bits;\n+}\n+\n static inline int64_t size_to_l1(BDRVQcow2State *s, int64_t size)\n {\n int shift = s->cluster_bits + s->l2_bits;\n","prefixes":["v8","11/34"]}