From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030270AbWFCILr (ORCPT ); Sat, 3 Jun 2006 04:11:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030292AbWFCILq (ORCPT ); Sat, 3 Jun 2006 04:11:46 -0400 Received: from cam-admin0.cambridge.arm.com ([193.131.176.58]:13003 "EHLO cam-admin0.cambridge.arm.com") by vger.kernel.org with ESMTP id S1030283AbWFCILi (ORCPT ); Sat, 3 Jun 2006 04:11:38 -0400 From: Catalin Marinas Reply-To: catalin.marinas@gmail.com Subject: [PATCH 2.6.17-rc5 7/8] Remove some of the kmemleak false positives Date: Sat, 03 Jun 2006 09:11:34 +0100 To: linux-kernel@vger.kernel.org Message-Id: <20060603081134.31915.37367.stgit@localhost.localdomain> In-Reply-To: <20060603081054.31915.4038.stgit@localhost.localdomain> References: <20060603081054.31915.4038.stgit@localhost.localdomain> Content-Type: text/plain; charset=utf-8; format=fixed Content-Transfer-Encoding: 8bit User-Agent: StGIT/0.9 X-OriginalArrivalTime: 03 Jun 2006 08:11:35.0124 (UTC) FILETIME=[5493C140:01C686E5] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Catalin Marinas There are allocations for which the main pointer cannot be found but they are not memory leaks. This patch fixes some of them. Signed-off-by: Catalin Marinas --- arch/i386/kernel/setup.c | 1 + ipc/util.c | 2 ++ kernel/params.c | 7 +++++-- mm/slab.c | 1 + 4 files changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index 846e163..a6407f6 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -1323,6 +1323,7 @@ legacy_init_iomem_resources(struct resou if (e820.map[i].addr + e820.map[i].size > 0x100000000ULL) continue; res = kzalloc(sizeof(struct resource), GFP_ATOMIC); + memleak_debug_not_leak(res); switch (e820.map[i].type) { case E820_RAM: res->name = "System RAM"; break; case E820_ACPI: res->name = "ACPI Tables"; break; diff --git a/ipc/util.c b/ipc/util.c index 8193299..40014a4 100644 --- a/ipc/util.c +++ b/ipc/util.c @@ -389,6 +389,7 @@ void* ipc_rcu_alloc(int size) */ if (rcu_use_vmalloc(size)) { out = vmalloc(HDRLEN_VMALLOC + size); + memleak_debug_not_leak(out); if (out) { out += HDRLEN_VMALLOC; container_of(out, struct ipc_rcu_hdr, data)->is_vmalloc = 1; @@ -396,6 +397,7 @@ void* ipc_rcu_alloc(int size) } } else { out = kmalloc(HDRLEN_KMALLOC + size, GFP_KERNEL); + memleak_debug_not_leak(out); if (out) { out += HDRLEN_KMALLOC; container_of(out, struct ipc_rcu_hdr, data)->is_vmalloc = 0; diff --git a/kernel/params.c b/kernel/params.c index af43ecd..6c04a68 100644 --- a/kernel/params.c +++ b/kernel/params.c @@ -548,6 +548,7 @@ static void __init kernel_param_sysfs_se unsigned int name_skip) { struct module_kobject *mk; + struct module_param_attrs *mp; mk = kzalloc(sizeof(struct module_kobject), GFP_KERNEL); BUG_ON(!mk); @@ -557,11 +558,13 @@ static void __init kernel_param_sysfs_se kobject_set_name(&mk->kobj, name); kobject_register(&mk->kobj); + mp = param_sysfs_setup(mk, kparam, num_params, name_skip); /* no need to keep the kobject if no parameter is exported */ - if (!param_sysfs_setup(mk, kparam, num_params, name_skip)) { + if (!mp) { kobject_unregister(&mk->kobj); kfree(mk); - } + } else + memleak_debug_not_leak(mp); } /* diff --git a/mm/slab.c b/mm/slab.c index 3494d9d..a2b82ed 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3358,6 +3358,7 @@ void *__alloc_percpu(size_t size) memset(pdata->ptrs[i], 0, size); } + memleak_debug_not_leak(pdata); /* Catch derefs w/o wrappers */ return (void *)(~(unsigned long)pdata);