{"id":2220026,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2220026/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260405211819.1251369-1-pc@manguebit.org/","project":{"id":12,"url":"http://patchwork.ozlabs.org/api/1.2/projects/12/?format=json","name":"Linux CIFS Client","link_name":"linux-cifs-client","list_id":"linux-cifs.vger.kernel.org","list_email":"linux-cifs@vger.kernel.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260405211819.1251369-1-pc@manguebit.org>","list_archive_url":null,"date":"2026-04-05T21:18:18","name":"[1/2] vfs: introduce d_mark_tmpfile_name()","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"cfc7aa5c8586681c5410ad9baf1c927a44a6efd9","submitter":{"id":91025,"url":"http://patchwork.ozlabs.org/api/1.2/people/91025/?format=json","name":"Paulo Alcantara","email":"pc@manguebit.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260405211819.1251369-1-pc@manguebit.org/mbox/","series":[{"id":498808,"url":"http://patchwork.ozlabs.org/api/1.2/series/498808/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-cifs-client/list/?series=498808","date":"2026-04-05T21:18:18","name":"[1/2] vfs: introduce d_mark_tmpfile_name()","version":1,"mbox":"http://patchwork.ozlabs.org/series/498808/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2220026/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2220026/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-cifs@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=manguebit.org header.i=@manguebit.org header.a=rsa-sha256\n header.s=dkim header.b=B0i01b8q;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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smtp.subspace.kernel.org;\n dmarc=pass (p=quarantine dis=none) header.from=manguebit.org;\n spf=pass smtp.mailfrom=manguebit.org;\n dkim=pass (2048-bit key) header.d=manguebit.org header.i=@manguebit.org\n header.b=B0i01b8q; arc=none smtp.client-ip=143.255.12.172","DKIM-Signature":"v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=manguebit.org; s=dkim; h=Content-Transfer-Encoding:MIME-Version:Message-ID:\n\tDate:Subject:Cc:To:From:Sender:Content-Type:Reply-To:Content-ID:\n\tContent-Description:In-Reply-To:References;\n\tbh=R3hAMltGZXZBXMekdnU4F6nV3F8FNNgjvNrI3g9yUq0=; b=B0i01b8qY098hF/cM3fCuthraz\n\tIx/GjrEIY1vFBNafHYIn8CJG2aTtIcAk7RzFb+79fuNVZTOBd+ynQeKiqCXHQ5B1Gu0S3wyKFdGs+\n\ttdjjISnTVtQqTqtnKThaIWamgUTi/njGFmgxKCkGw3gvzjGBhjuPHPSbl/q5M4i4ucWGmkDEa01CA\n\ta75+aNGPxjOWEyIW9WL+UHaQU8OCPuGNL/uCOhEIh9OQltcDD86w2qPkMm665nzBqgq6/wmN2sgiH\n\tdzrGvk88hmtMMdo7YeveWi+p+0iIW3o/eM9FsLS4EFeVDRq1mS+LSFX7l/iWECbv5WDzjyOV2CR5h\n\tP2Y7jSMg==;","From":"Paulo Alcantara ","To":"viro@zeniv.linux.org.uk,\n\tsmfrench@gmail.com","Cc":"\"Paulo Alcantara (Red Hat)\" ,\n\tChristian Brauner ,\n\tJan Kara ,\n\tDavid Howells ,\n\tlinux-fsdevel@vger.kernel.org,\n\tlinux-cifs@vger.kernel.org","Subject":"[PATCH 1/2] vfs: introduce d_mark_tmpfile_name()","Date":"Sun, 5 Apr 2026 18:18:18 -0300","Message-ID":"<20260405211819.1251369-1-pc@manguebit.org>","X-Mailer":"git-send-email 2.53.0","Precedence":"bulk","X-Mailing-List":"linux-cifs@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit"},"content":"CIFS requires O_TMPFILE dentries to have names of newly created\ndelete-on-close files in the server so it can build full pathnames\nfrom the root of the share when performing operations on them.\n\nSuggested-by: Al Viro \nSigned-off-by: Paulo Alcantara (Red Hat) \nCc: Christian Brauner \nCc: Jan Kara \nCc: David Howells \nCc: linux-fsdevel@vger.kernel.org\nCc: linux-cifs@vger.kernel.org\n---\n fs/dcache.c | 19 +++++++++++++++++++\n include/linux/dcache.h | 1 +\n 2 files changed, 20 insertions(+)","diff":"diff --git a/fs/dcache.c b/fs/dcache.c\nindex 7ba1801d8132..c20a9c9e921c 100644\n--- a/fs/dcache.c\n+++ b/fs/dcache.c\n@@ -3196,6 +3196,25 @@ void d_mark_tmpfile(struct file *file, struct inode *inode)\n }\n EXPORT_SYMBOL(d_mark_tmpfile);\n \n+void d_mark_tmpfile_name(struct file *file, const struct qstr *name)\n+{\n+\tstruct dentry *dentry = file->f_path.dentry;\n+\tchar *dname = dentry->d_shortname.string;\n+\n+\tBUG_ON(dname_external(dentry) ||\n+\t d_really_is_positive(dentry) ||\n+\t !d_unlinked(dentry) ||\n+\t name->len > DNAME_INLINE_LEN - 1);\n+\tspin_lock(&dentry->d_parent->d_lock);\n+\tspin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);\n+\tdentry->__d_name.len = name->len;\n+\tmemcpy(dname, name->name, name->len);\n+\tdname[name->len] = '\\0';\n+\tspin_unlock(&dentry->d_lock);\n+\tspin_unlock(&dentry->d_parent->d_lock);\n+}\n+EXPORT_SYMBOL(d_mark_tmpfile_name);\n+\n void d_tmpfile(struct file *file, struct inode *inode)\n {\n \tstruct dentry *dentry = file->f_path.dentry;\ndiff --git a/include/linux/dcache.h b/include/linux/dcache.h\nindex 898c60d21c92..f60819dcfebd 100644\n--- a/include/linux/dcache.h\n+++ b/include/linux/dcache.h\n@@ -264,6 +264,7 @@ extern void d_invalidate(struct dentry *);\n extern struct dentry * d_make_root(struct inode *);\n \n extern void d_mark_tmpfile(struct file *, struct inode *);\n+void d_mark_tmpfile_name(struct file *file, const struct qstr *name);\n extern void d_tmpfile(struct file *, struct inode *);\n \n extern struct dentry *d_find_alias(struct inode *);\n","prefixes":["1/2"]}