{"id":2230327,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2230327/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-ext4/patch/177747215735.4110581.16684664454284252297.stgit@frogsfrogsfrogs/","project":{"id":8,"url":"http://patchwork.ozlabs.org/api/1.1/projects/8/?format=json","name":"Linux ext4 filesystem development","link_name":"linux-ext4","list_id":"linux-ext4.vger.kernel.org","list_email":"linux-ext4@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<177747215735.4110581.16684664454284252297.stgit@frogsfrogsfrogs>","date":"2026-04-29T15:01:44","name":"[2/4] fuse2fs: constrain iomap mapping cache size","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"52055dc4a745dd3d8a0236adb535891dd5562fee","submitter":{"id":77032,"url":"http://patchwork.ozlabs.org/api/1.1/people/77032/?format=json","name":"Darrick J. Wong","email":"djwong@kernel.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-ext4/patch/177747215735.4110581.16684664454284252297.stgit@frogsfrogsfrogs/mbox/","series":[{"id":502093,"url":"http://patchwork.ozlabs.org/api/1.1/series/502093/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-ext4/list/?series=502093","date":"2026-04-29T15:01:29","name":"[1/4] fuse2fs: enable caching of iomaps","version":1,"mbox":"http://patchwork.ozlabs.org/series/502093/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2230327/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2230327/checks/","tags":{},"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-ext4@vger.kernel.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","patchwork-incoming@ozlabs.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=U2IfRr/d;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=2404:9400:2221:ea00::3; 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arc=none smtp.client-ip=10.30.226.201"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1777474905;\n\tbh=+u3n1PQiT3tPfWI57V0WB+Vas0Xvxqfauog4x9kJGTU=;\n\th=Date:Subject:From:To:Cc:In-Reply-To:References:From;\n\tb=U2IfRr/dplB4IIkRNgKMndNzqutAWaKujXcD8JqAjTGZe8rSPP9kta8ZQaaVsiOUs\n\t WEUuzMmXab9SZ220eeIwIdFhcxhycPcb5jytXeTm3MGu4Y96R0Wi7vZ5DXSXJypkfw\n\t 5EWhnF5s1npV9PmhH9VemPTzoqOpUysZAr0GgUfR+qpqiyoErQ4R+PC173Wmp5Dxxl\n\t E2mg5dKYuL0KBkZRbmPlDMfRc+FiApxOdTdzgkk5GvVf69UaZN/nE187h32nj4ACaO\n\t Rq1NJZjcMK6Ev+WsCLzEmvBa9v0XeozS+1+rDlLFjJM8gXt/MGiMf4+LYOFSTC4Npw\n\t VqPLqVNK7+Ayg==","Date":"Wed, 29 Apr 2026 08:01:44 -0700","Subject":"[PATCH 2/4] fuse2fs: constrain iomap mapping cache size","From":"\"Darrick J. Wong\" ","To":"tytso@mit.edu","Cc":"bernd@bsbernd.com, miklos@szeredi.hu, linux-ext4@vger.kernel.org,\n neal@gompa.dev, linux-fsdevel@vger.kernel.org, fuse-devel@lists.linux.dev,\n joannelkoong@gmail.com","Message-ID":"<177747215735.4110581.16684664454284252297.stgit@frogsfrogsfrogs>","In-Reply-To":"<177747215686.4110581.16852917113451473539.stgit@frogsfrogsfrogs>","References":"<177747215686.4110581.16852917113451473539.stgit@frogsfrogsfrogs>","Precedence":"bulk","X-Mailing-List":"linux-ext4@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","X-Spam-Status":"No, score=-1.2 required=5.0 tests=ARC_SIGNED,ARC_VALID,\n\tDKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DMARC_PASS,\n\tMAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=disabled\n\tversion=4.0.1","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on gandalf.ozlabs.org"},"content":"From: Darrick J. Wong \n\nUpdate the iomap config functions to handle the new iomap mapping cache\nsize restriction knob.\n\nSigned-off-by: \"Darrick J. Wong\" \n---\n fuse4fs/fuse4fs.c | 6 ++++--\n misc/fuse2fs.c | 5 +++--\n 2 files changed, 7 insertions(+), 4 deletions(-)","diff":"diff --git a/fuse4fs/fuse4fs.c b/fuse4fs/fuse4fs.c\nindex 56a79dd48c9f43..d07c576d31862a 100644\n--- a/fuse4fs/fuse4fs.c\n+++ b/fuse4fs/fuse4fs.c\n@@ -7481,9 +7481,11 @@ static void op_iomap_config(fuse_req_t req,\n \n \tFUSE4FS_CHECK_CONTEXT(req);\n \n-\tdbg_printf(ff, \"%s: flags=0x%llx maxbytes=0x%llx\\n\", __func__,\n+\tdbg_printf(ff, \"%s: flags=0x%llx maxbytes=0x%llx cache_maxbytes=0x%x\\n\",\n+\t\t __func__,\n \t\t (unsigned long long)p->flags,\n-\t\t (unsigned long long)p->maxbytes);\n+\t\t (unsigned long long)p->maxbytes,\n+\t\t p->cache_maxbytes);\n \tfs = fuse4fs_start(ff);\n \n \tcfg.flags |= FUSE_IOMAP_CONFIG_UUID;\ndiff --git a/misc/fuse2fs.c b/misc/fuse2fs.c\nindex e485c38bda41e8..232181bc170183 100644\n--- a/misc/fuse2fs.c\n+++ b/misc/fuse2fs.c\n@@ -6753,9 +6753,10 @@ static int op_iomap_config(const struct fuse_iomap_config_params *p,\n \n \tFUSE2FS_CHECK_CONTEXT(ff);\n \n-\tdbg_printf(ff, \"%s: flags=0x%llx maxbytes=0x%llx\\n\", __func__,\n+\tdbg_printf(ff, \"%s: flags=0x%llx maxbytes=0x%llx cache_maxbytes=%u\\n\", __func__,\n \t\t (unsigned long long)p->flags,\n-\t\t (unsigned long long)p->maxbytes);\n+\t\t (unsigned long long)p->maxbytes,\n+\t\t p->cache_maxbytes);\n \tfs = fuse2fs_start(ff);\n \n \tcfg->flags |= FUSE_IOMAP_CONFIG_UUID;\n","prefixes":["2/4"]}