From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ED916C49EA5 for ; Mon, 21 Jun 2021 21:46:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D4600601FE for ; Mon, 21 Jun 2021 21:46:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231452AbhFUVtM (ORCPT ); Mon, 21 Jun 2021 17:49:12 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:41031 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232244AbhFUVtL (ORCPT ); Mon, 21 Jun 2021 17:49:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1624312015; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=8CXCzmmsGHQxQwEfFhT8cJfcai9DTFJz2cKmibmUtuQ=; b=Riwnb/aMOvcISooXx8ACNg8Irn+uP3Iv7D0CSxehtUA18lzMCaVJ52qHGIYzZxc4Hqe3kb FKFn9IiIRW6JVOF9JFV8gtWbo2yzuuRedL/TIgLPO1NRu3+ttJkubfLGGPH+mFwYkMIFeZ rTAEOge2pAXJPP1yuDqLguCe+8WZCGI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-100-f7LblCNCPQuGDnUprzvsZA-1; Mon, 21 Jun 2021 17:46:54 -0400 X-MC-Unique: f7LblCNCPQuGDnUprzvsZA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 3B0EC804145; Mon, 21 Jun 2021 21:46:53 +0000 (UTC) Received: from warthog.procyon.org.uk (ovpn-118-65.rdu2.redhat.com [10.10.118.65]) by smtp.corp.redhat.com (Postfix) with ESMTP id A8DF95C1C2; Mon, 21 Jun 2021 21:46:47 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 Subject: [PATCH 09/12] cachefiles: Change %p in format strings to something else From: David Howells To: linux-cachefs@redhat.com Cc: dhowells@redhat.com, Anna Schumaker , Steve French , Dominique Martinet , Jeff Layton , David Wysochanski , linux-afs@lists.infradead.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, ceph-devel@vger.kernel.org, v9fs-developer@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Date: Mon, 21 Jun 2021 22:46:46 +0100 Message-ID: <162431200692.2908479.9253374494073633778.stgit@warthog.procyon.org.uk> In-Reply-To: <162431188431.2908479.14031376932042135080.stgit@warthog.procyon.org.uk> References: <162431188431.2908479.14031376932042135080.stgit@warthog.procyon.org.uk> User-Agent: StGit/0.23 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org Change plain %p in format strings in cachefiles code to something more useful, since %p is now hashed before printing and thus no longer matches the contents of an oops register dump. Signed-off-by: David Howells --- fs/cachefiles/bind.c | 2 -- fs/cachefiles/interface.c | 6 +++--- fs/cachefiles/key.c | 2 +- fs/cachefiles/namei.c | 48 +++++++++++++++++++++------------------------ fs/cachefiles/xattr.c | 4 ++-- 5 files changed, 28 insertions(+), 34 deletions(-) diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c index 38bb7764b454..d463d89f5db8 100644 --- a/fs/cachefiles/bind.c +++ b/fs/cachefiles/bind.c @@ -108,8 +108,6 @@ static int cachefiles_daemon_add_cache(struct cachefiles_cache *cache) atomic_set(&fsdef->usage, 1); fsdef->type = FSCACHE_COOKIE_TYPE_INDEX; - _debug("- fsdef %p", fsdef); - /* look up the directory at the root of the cache */ ret = kern_path(cache->rootdirname, LOOKUP_DIRECTORY, &path); if (ret < 0) diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c index da3948fdb615..da28ac1fa225 100644 --- a/fs/cachefiles/interface.c +++ b/fs/cachefiles/interface.c @@ -33,7 +33,7 @@ static struct fscache_object *cachefiles_alloc_object( cache = container_of(_cache, struct cachefiles_cache, cache); - _enter("{%s},%p,", cache->cache.identifier, cookie); + _enter("{%s},%x,", cache->cache.identifier, cookie->debug_id); lookup_data = kmalloc(sizeof(*lookup_data), cachefiles_gfp); if (!lookup_data) @@ -96,7 +96,7 @@ static struct fscache_object *cachefiles_alloc_object( lookup_data->key = key; object->lookup_data = lookup_data; - _leave(" = %p [%p]", &object->fscache, lookup_data); + _leave(" = %x [%p]", object->fscache.debug_id, lookup_data); return &object->fscache; nomem_key: @@ -379,7 +379,7 @@ static void cachefiles_sync_cache(struct fscache_cache *_cache) const struct cred *saved_cred; int ret; - _enter("%p", _cache); + _enter("%s", _cache->tag->name); cache = container_of(_cache, struct cachefiles_cache, cache); diff --git a/fs/cachefiles/key.c b/fs/cachefiles/key.c index be96f5fc5cac..7f94efc97e23 100644 --- a/fs/cachefiles/key.c +++ b/fs/cachefiles/key.c @@ -150,6 +150,6 @@ char *cachefiles_cook_key(const u8 *raw, int keylen, uint8_t type) key[len++] = 0; key[len] = 0; - _leave(" = %p %d", key, len); + _leave(" = %s %d", key, len); return key; } diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c index 92aa550dae7e..a9aca5ab5970 100644 --- a/fs/cachefiles/namei.c +++ b/fs/cachefiles/namei.c @@ -39,18 +39,18 @@ void __cachefiles_printk_object(struct cachefiles_object *object, pr_err("%sops=%u inp=%u exc=%u\n", prefix, object->fscache.n_ops, object->fscache.n_in_progress, object->fscache.n_exclusive); - pr_err("%sparent=%p\n", - prefix, object->fscache.parent); + pr_err("%sparent=%x\n", + prefix, object->fscache.parent ? object->fscache.parent->debug_id : 0); spin_lock(&object->fscache.lock); cookie = object->fscache.cookie; if (cookie) { - pr_err("%scookie=%p [pr=%p nd=%p fl=%lx]\n", + pr_err("%scookie=%x [pr=%x nd=%p fl=%lx]\n", prefix, - object->fscache.cookie, - object->fscache.cookie->parent, - object->fscache.cookie->netfs_data, - object->fscache.cookie->flags); + cookie->debug_id, + cookie->parent ? cookie->parent->debug_id : 0, + cookie->netfs_data, + cookie->flags); pr_err("%skey=[%u] '", prefix, cookie->key_len); k = (cookie->key_len <= sizeof(cookie->inline_key)) ? cookie->inline_key : cookie->key; @@ -110,7 +110,7 @@ static void cachefiles_mark_object_buried(struct cachefiles_cache *cache, /* found the dentry for */ found_dentry: - kdebug("preemptive burial: OBJ%x [%s] %p", + kdebug("preemptive burial: OBJ%x [%s] %pd", object->fscache.debug_id, object->fscache.state->name, dentry); @@ -140,7 +140,7 @@ static int cachefiles_mark_object_active(struct cachefiles_cache *cache, struct rb_node **_p, *_parent = NULL; struct dentry *dentry; - _enter(",%p", object); + _enter(",%x", object->fscache.debug_id); try_again: write_lock(&cache->active_lock); @@ -298,8 +298,6 @@ static int cachefiles_bury_object(struct cachefiles_cache *cache, _enter(",'%pd','%pd'", dir, rep); - _debug("remove %p from %p", rep, dir); - /* non-directories can just be unlinked */ if (!d_is_dir(rep)) { _debug("unlink stale object"); @@ -446,7 +444,7 @@ int cachefiles_delete_object(struct cachefiles_cache *cache, struct dentry *dir; int ret; - _enter(",OBJ%x{%p}", object->fscache.debug_id, object->dentry); + _enter(",OBJ%x{%pd}", object->fscache.debug_id, object->dentry); ASSERT(object->dentry); ASSERT(d_backing_inode(object->dentry)); @@ -499,7 +497,7 @@ int cachefiles_walk_to_object(struct cachefiles_object *parent, const char *name; int ret, nlen; - _enter("OBJ%x{%p},OBJ%x,%s,", + _enter("OBJ%x{%pd},OBJ%x,%s,", parent->fscache.debug_id, parent->dentry, object->fscache.debug_id, key); @@ -542,7 +540,7 @@ int cachefiles_walk_to_object(struct cachefiles_object *parent, inode = d_backing_inode(next); trace_cachefiles_lookup(object, next, inode); - _debug("next -> %p %s", next, inode ? "positive" : "negative"); + _debug("next -> %pd %s", next, inode ? "positive" : "negative"); if (!key) object->new = !inode; @@ -578,8 +576,8 @@ int cachefiles_walk_to_object(struct cachefiles_object *parent, } ASSERT(d_backing_inode(next)); - _debug("mkdir -> %p{%p{ino=%lu}}", - next, d_backing_inode(next), d_backing_inode(next)->i_ino); + _debug("mkdir -> %pd{ino=%lu}", + next, d_backing_inode(next)->i_ino); } else if (!d_can_lookup(next)) { pr_err("inode %lu is not a directory\n", @@ -607,8 +605,8 @@ int cachefiles_walk_to_object(struct cachefiles_object *parent, ASSERT(d_backing_inode(next)); - _debug("create -> %p{%p{ino=%lu}}", - next, d_backing_inode(next), d_backing_inode(next)->i_ino); + _debug("create -> %pd{ino=%lu}", + next, d_backing_inode(next)->i_ino); } else if (!d_can_lookup(next) && !d_is_reg(next) @@ -774,7 +772,7 @@ struct dentry *cachefiles_get_directory(struct cachefiles_cache *cache, goto lookup_error; } - _debug("subdir -> %p %s", + _debug("subdir -> %pd %s", subdir, d_backing_inode(subdir) ? "positive" : "negative"); /* we need to create the subdir if it doesn't exist yet */ @@ -800,10 +798,8 @@ struct dentry *cachefiles_get_directory(struct cachefiles_cache *cache, } ASSERT(d_backing_inode(subdir)); - _debug("mkdir -> %p{%p{ino=%lu}}", - subdir, - d_backing_inode(subdir), - d_backing_inode(subdir)->i_ino); + _debug("mkdir -> %pd{ino=%lu}", + subdir, d_backing_inode(subdir)->i_ino); } inode_unlock(d_inode(dir)); @@ -878,7 +874,7 @@ static struct dentry *cachefiles_check_active(struct cachefiles_cache *cache, if (IS_ERR(victim)) goto lookup_error; - //_debug("victim -> %p %s", + //_debug("victim -> %pd %s", // victim, d_backing_inode(victim) ? "positive" : "negative"); /* if the object is no longer there then we probably retired the object @@ -909,7 +905,7 @@ static struct dentry *cachefiles_check_active(struct cachefiles_cache *cache, read_unlock(&cache->active_lock); - //_leave(" = %p", victim); + //_leave(" = %pd", victim); return victim; object_in_use: @@ -955,7 +951,7 @@ int cachefiles_cull(struct cachefiles_cache *cache, struct dentry *dir, if (IS_ERR(victim)) return PTR_ERR(victim); - _debug("victim -> %p %s", + _debug("victim -> %pd %s", victim, d_backing_inode(victim) ? "positive" : "negative"); /* okay... the victim is not being used so we can cull it diff --git a/fs/cachefiles/xattr.c b/fs/cachefiles/xattr.c index a591b5e09637..9e82de668595 100644 --- a/fs/cachefiles/xattr.c +++ b/fs/cachefiles/xattr.c @@ -36,7 +36,7 @@ int cachefiles_check_object_type(struct cachefiles_object *object) else snprintf(type, 3, "%02x", object->fscache.cookie->def->type); - _enter("%p{%s}", object, type); + _enter("%x{%s}", object->fscache.debug_id, type); /* attempt to install a type label directly */ ret = vfs_setxattr(&init_user_ns, dentry, cachefiles_xattr_cache, type, @@ -134,7 +134,7 @@ int cachefiles_update_object_xattr(struct cachefiles_object *object, if (!dentry) return -ESTALE; - _enter("%p,#%d", object, auxdata->len); + _enter("%x,#%d", object->fscache.debug_id, auxdata->len); /* attempt to install the cache metadata directly */ _debug("SET #%u", auxdata->len);