{"id":2197753,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2197753/?format=json","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.0/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":""},"msgid":"<20260218132633.29748-10-hreitz@redhat.com>","date":"2026-02-18T13:26:18","name":"[v4,09/24] fuse: Introduce fuse_{at,de}tach_handlers()","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"22d37a11ea80b087f046824e1d8a6fc5b934da77","submitter":{"id":82279,"url":"http://patchwork.ozlabs.org/api/1.0/people/82279/?format=json","name":"Hanna Czenczek","email":"hreitz@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260218132633.29748-10-hreitz@redhat.com/mbox/","series":[{"id":492547,"url":"http://patchwork.ozlabs.org/api/1.0/series/492547/?format=json","date":"2026-02-18T13:26:09","name":"export/fuse: Use coroutines and multi-threading","version":4,"mbox":"http://patchwork.ozlabs.org/series/492547/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2197753/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=e02Y8LjI;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=google header.b=Z3nfce7L;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=UTF-8","Content-Transfer-Encoding":"8bit","Received-SPF":"pass client-ip=170.10.133.124; envelope-from=hreitz@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com","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=-0.043,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no","X-Spam_action":"no action","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"Pull setting up and tearing down the AIO context handlers into two\ndedicated functions.\n\nReviewed-by: Stefan Hajnoczi \nSigned-off-by: Hanna Czenczek \n---\n block/export/fuse.c | 32 ++++++++++++++++----------------\n 1 file changed, 16 insertions(+), 16 deletions(-)","diff":"diff --git a/block/export/fuse.c b/block/export/fuse.c\nindex d0e3c6bf61..5953407f20 100644\n--- a/block/export/fuse.c\n+++ b/block/export/fuse.c\n@@ -78,27 +78,34 @@ static void read_from_fuse_export(void *opaque);\n static bool is_regular_file(const char *path, Error **errp);\n \n \n-static void fuse_export_drained_begin(void *opaque)\n+static void fuse_attach_handlers(FuseExport *exp)\n {\n- FuseExport *exp = opaque;\n+ aio_set_fd_handler(exp->common.ctx,\n+ fuse_session_fd(exp->fuse_session),\n+ read_from_fuse_export, NULL, NULL, NULL, exp);\n+ exp->fd_handler_set_up = true;\n+}\n \n+static void fuse_detach_handlers(FuseExport *exp)\n+{\n aio_set_fd_handler(exp->common.ctx,\n fuse_session_fd(exp->fuse_session),\n NULL, NULL, NULL, NULL, NULL);\n exp->fd_handler_set_up = false;\n }\n \n+static void fuse_export_drained_begin(void *opaque)\n+{\n+ fuse_detach_handlers(opaque);\n+}\n+\n static void fuse_export_drained_end(void *opaque)\n {\n FuseExport *exp = opaque;\n \n /* Refresh AioContext in case it changed */\n exp->common.ctx = blk_get_aio_context(exp->common.blk);\n-\n- aio_set_fd_handler(exp->common.ctx,\n- fuse_session_fd(exp->fuse_session),\n- read_from_fuse_export, NULL, NULL, NULL, exp);\n- exp->fd_handler_set_up = true;\n+ fuse_attach_handlers(exp);\n }\n \n static bool fuse_export_drained_poll(void *opaque)\n@@ -209,11 +216,7 @@ static int fuse_export_create(BlockExport *blk_exp,\n \n g_hash_table_insert(exports, g_strdup(exp->mountpoint), NULL);\n \n- aio_set_fd_handler(exp->common.ctx,\n- fuse_session_fd(exp->fuse_session),\n- read_from_fuse_export, NULL, NULL, NULL, exp);\n- exp->fd_handler_set_up = true;\n-\n+ fuse_attach_handlers(exp);\n return 0;\n \n fail:\n@@ -335,10 +338,7 @@ static void fuse_export_shutdown(BlockExport *blk_exp)\n fuse_session_exit(exp->fuse_session);\n \n if (exp->fd_handler_set_up) {\n- aio_set_fd_handler(exp->common.ctx,\n- fuse_session_fd(exp->fuse_session),\n- NULL, NULL, NULL, NULL, NULL);\n- exp->fd_handler_set_up = false;\n+ fuse_detach_handlers(exp);\n }\n }\n \n","prefixes":["v4","09/24"]}