From patchwork Fri Nov 8 17:32:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Howells X-Patchwork-Id: 13868758 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4758222D00E for ; Fri, 8 Nov 2024 17:36:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731087385; cv=none; b=us+fxbgBDI1qbC44T7TJY4xSoAiQdst43r8+vafMx0rV4seA3rD+3oYKYXsRqXzTJiNSTbMNmG2d8vXXjv/gwQaGM22YXuC3+xcLlhAb9+KKe5pcbhbASo7TLpJgA4wIdBcJqs6phGkOdMBT20ZJzJ3i0FgFn/5O8g2pH5McAzc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731087385; c=relaxed/simple; bh=BhgoPT4SsJfUu+cNW6rZ6RphQLwJpzjYixNxJceaPUM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SWJFd3Dafna4P4BxJL9HTd8gLVZBYonWT2efdbyaxmavmN7V1nC9xirE4YPOj+hG9pbcRFO6dd1a8HDPR1NmO3EcjH6KRcPO+Mf388v+h5Wj1Jo1qrVGQDZGqIMP9I5KX84wmc5SYMam/ePrA60i4OdsEQWGhGd7P3DROnGrdzw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=e/AIslVi; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="e/AIslVi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1731087382; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xT95iRI7GFEw7/DsY259MSksQtxbslsuX0w7QNZo9gI=; b=e/AIslVivp+FCaktipzFon0DR42fp02Qk08MjBFWRcStTye/tbVmcybNBzNse2I/vdV7NA XKi4UTO+plwE5PBuqQoMH9+3/1j2NGz+ehH52ZLvYjWrsb6JS9ZPQEiwCS84qmy9sOg0q7 D9oQBOvKAhp5YMEgKYhSpZY6IDTpWTg= Received: from mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-292-gbmONp36NJu4Uorphe299A-1; Fri, 08 Nov 2024 12:36:18 -0500 X-MC-Unique: gbmONp36NJu4Uorphe299A-1 X-Mimecast-MFC-AGG-ID: gbmONp36NJu4Uorphe299A Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 9E3C51953942; Fri, 8 Nov 2024 17:36:15 +0000 (UTC) Received: from warthog.procyon.org.uk.com (unknown [10.42.28.231]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 0DF60300019E; Fri, 8 Nov 2024 17:36:09 +0000 (UTC) From: David Howells To: Christian Brauner , Steve French , Matthew Wilcox Cc: David Howells , Jeff Layton , Gao Xiang , Dominique Martinet , Marc Dionne , Paulo Alcantara , Shyam Prasad N , Tom Talpey , Eric Van Hensbergen , Ilya Dryomov , netfs@lists.linux.dev, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org, v9fs@lists.linux.dev, linux-erofs@lists.ozlabs.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 29/33] afs: Make afs_mkdir() locally initialise a new directory's content Date: Fri, 8 Nov 2024 17:32:30 +0000 Message-ID: <20241108173236.1382366-30-dhowells@redhat.com> In-Reply-To: <20241108173236.1382366-1-dhowells@redhat.com> References: <20241108173236.1382366-1-dhowells@redhat.com> Precedence: bulk X-Mailing-List: v9fs@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Initialise a new directory's content when it is created by mkdir locally rather than downloading the content from the server as we can predict what it's going to look like. Signed-off-by: David Howells cc: Marc Dionne cc: linux-afs@lists.infradead.org --- fs/afs/dir.c | 3 +++ fs/afs/dir_edit.c | 49 ++++++++++++++++++++++++++++++++++++++ fs/afs/internal.h | 1 + include/trace/events/afs.h | 2 ++ 4 files changed, 55 insertions(+) diff --git a/fs/afs/dir.c b/fs/afs/dir.c index 36b80449ef0e..8c4c1029ea2f 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -1259,6 +1259,7 @@ void afs_check_for_remote_deletion(struct afs_operation *op) */ static void afs_vnode_new_inode(struct afs_operation *op) { + struct afs_vnode_param *dvp = &op->file[0]; struct afs_vnode_param *vp = &op->file[1]; struct afs_vnode *vnode; struct inode *inode; @@ -1278,6 +1279,8 @@ static void afs_vnode_new_inode(struct afs_operation *op) vnode = AFS_FS_I(inode); set_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags); + if (S_ISDIR(inode->i_mode)) + afs_mkdir_init_dir(vnode, dvp->vnode); if (!afs_op_error(op)) afs_cache_permit(vnode, op->key, vnode->cb_break, &vp->scb); d_instantiate(op->dentry, inode); diff --git a/fs/afs/dir_edit.c b/fs/afs/dir_edit.c index 71cce884e434..53178bb2d1a6 100644 --- a/fs/afs/dir_edit.c +++ b/fs/afs/dir_edit.c @@ -556,3 +556,52 @@ void afs_edit_dir_update_dotdot(struct afs_vnode *vnode, struct afs_vnode *new_d 0, 0, 0, 0, ".."); goto out; } + +/* + * Initialise a new directory. We need to fill in the "." and ".." entries. + */ +void afs_mkdir_init_dir(struct afs_vnode *dvnode, struct afs_vnode *parent_dvnode) +{ + union afs_xdr_dir_block *meta; + struct afs_dir_iter iter = { .dvnode = dvnode }; + union afs_xdr_dirent *de; + unsigned int slot = AFS_DIR_RESV_BLOCKS0; + loff_t i_size; + + i_size = i_size_read(&dvnode->netfs.inode); + if (i_size != AFS_DIR_BLOCK_SIZE) { + afs_invalidate_dir(dvnode, afs_dir_invalid_edit_add_bad_size); + return; + } + + meta = afs_dir_get_block(&iter, 0); + if (!meta) + return; + + afs_edit_init_block(meta, meta, 0); + + de = &meta->dirents[slot]; + de->u.valid = 1; + de->u.vnode = htonl(dvnode->fid.vnode); + de->u.unique = htonl(dvnode->fid.unique); + memcpy(de->u.name, ".", 2); + trace_afs_edit_dir(dvnode, afs_edit_dir_for_mkdir, afs_edit_dir_mkdir, 0, slot, + dvnode->fid.vnode, dvnode->fid.unique, "."); + slot++; + + de = &meta->dirents[slot]; + de->u.valid = 1; + de->u.vnode = htonl(parent_dvnode->fid.vnode); + de->u.unique = htonl(parent_dvnode->fid.unique); + memcpy(de->u.name, "..", 3); + trace_afs_edit_dir(dvnode, afs_edit_dir_for_mkdir, afs_edit_dir_mkdir, 0, slot, + parent_dvnode->fid.vnode, parent_dvnode->fid.unique, ".."); + + afs_set_contig_bits(meta, AFS_DIR_RESV_BLOCKS0, 2); + meta->meta.alloc_ctrs[0] -= 2; + kunmap_local(meta); + + netfs_single_mark_inode_dirty(&dvnode->netfs.inode); + set_bit(AFS_VNODE_DIR_VALID, &dvnode->flags); + set_bit(AFS_VNODE_DIR_READ, &dvnode->flags); +} diff --git a/fs/afs/internal.h b/fs/afs/internal.h index cd2c4f85117d..acae1b5bfc63 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -1078,6 +1078,7 @@ extern void afs_edit_dir_add(struct afs_vnode *, struct qstr *, struct afs_fid * extern void afs_edit_dir_remove(struct afs_vnode *, struct qstr *, enum afs_edit_dir_reason); void afs_edit_dir_update_dotdot(struct afs_vnode *vnode, struct afs_vnode *new_dvnode, enum afs_edit_dir_reason why); +void afs_mkdir_init_dir(struct afs_vnode *dvnode, struct afs_vnode *parent_vnode); /* * dir_silly.c diff --git a/include/trace/events/afs.h b/include/trace/events/afs.h index cdb5f2af7799..c52fd83ca9b7 100644 --- a/include/trace/events/afs.h +++ b/include/trace/events/afs.h @@ -350,6 +350,7 @@ enum yfs_cm_operation { EM(afs_dir_invalid_edit_add_no_slots, "edit-add-no-slots") \ EM(afs_dir_invalid_edit_add_too_many_blocks, "edit-add-too-many-blocks") \ EM(afs_dir_invalid_edit_get_block, "edit-get-block") \ + EM(afs_dir_invalid_edit_mkdir, "edit-mkdir") \ EM(afs_dir_invalid_edit_rem_bad_size, "edit-rem-bad-size") \ EM(afs_dir_invalid_edit_rem_wrong_name, "edit-rem-wrong_name") \ EM(afs_dir_invalid_edit_upd_bad_size, "edit-upd-bad-size") \ @@ -371,6 +372,7 @@ enum yfs_cm_operation { EM(afs_edit_dir_delete_error, "d_err ") \ EM(afs_edit_dir_delete_inval, "d_invl") \ EM(afs_edit_dir_delete_noent, "d_nent") \ + EM(afs_edit_dir_mkdir, "mk_ent") \ EM(afs_edit_dir_update_dd, "u_ddot") \ EM(afs_edit_dir_update_error, "u_fail") \ EM(afs_edit_dir_update_inval, "u_invl") \