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From: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
To: vgoyal@redhat.com, ebiederm@xmission.com, akpm@linux-foundation.org
Cc: cpw@sgi.com, kumagai-atsushi@mxc.nes.nec.co.jp,
	lisa.mitchell@hp.com, kexec@lists.infradead.org,
	linux-kernel@vger.kernel.org, zhangyanfei@cn.fujitsu.com,
	jingbai.ma@hp.com
Subject: [PATCH v4 6/8] vmcore: count holes generated by round-up operation for page boudary for size of /proc/vmcore
Date: Sat, 13 Apr 2013 09:21:40 +0900	[thread overview]
Message-ID: <20130413002140.18245.12374.stgit@localhost6.localdomain6> (raw)
In-Reply-To: <20130413002000.18245.21513.stgit@localhost6.localdomain6>

Signed-off-by: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
---

 fs/proc/vmcore.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index e27da40..029bdc0 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -266,7 +266,7 @@ static u64 __init get_vmcore_size_elf64(char *elfptr, size_t elfsz)
 	phdr_ptr = (Elf64_Phdr*)(elfptr + sizeof(Elf64_Ehdr));
 	size = elfsz;
 	for (i = 0; i < ehdr_ptr->e_phnum; i++) {
-		size += phdr_ptr->p_memsz;
+		size += roundup(phdr_ptr->p_memsz, PAGE_SIZE);
 		phdr_ptr++;
 	}
 	return size;
@@ -283,7 +283,7 @@ static u64 __init get_vmcore_size_elf32(char *elfptr, size_t elfsz)
 	phdr_ptr = (Elf32_Phdr*)(elfptr + sizeof(Elf32_Ehdr));
 	size = elfsz;
 	for (i = 0; i < ehdr_ptr->e_phnum; i++) {
-		size += phdr_ptr->p_memsz;
+		size += roundup(phdr_ptr->p_memsz, PAGE_SIZE);
 		phdr_ptr++;
 	}
 	return size;


  parent reply	other threads:[~2013-04-18  9:35 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-13  0:21 [PATCH v4 0/8] kdump, vmcore: support mmap() on /proc/vmcore HATAYAMA Daisuke
2013-04-13  0:21 ` [PATCH v4 1/8] vmcore: allocate buffer for ELF headers on page-size alignment HATAYAMA Daisuke
2013-04-13  0:21 ` [PATCH v4 2/8] vmcore: clean up read_vmcore() HATAYAMA Daisuke
2013-04-13  0:21 ` [PATCH v4 3/8] vmcore, procfs: introduce MEM_TYPE_CURRENT_KERNEL flag to distinguish objects copied in 2nd kernel HATAYAMA Daisuke
2013-04-13  0:21 ` [PATCH v4 4/8] vmcore: Add helper function vmcore_add() HATAYAMA Daisuke
2013-04-13  0:21 ` [PATCH v4 5/8] vmcore: copy ELF note segments in the 2nd kernel per page vmcore objects HATAYAMA Daisuke
2013-04-29 19:36   ` Vivek Goyal
2013-05-07  7:56     ` HATAYAMA Daisuke
2013-05-07 15:08       ` Vivek Goyal
2013-05-08  4:57         ` HATAYAMA Daisuke
2013-04-13  0:21 ` HATAYAMA Daisuke [this message]
2013-04-13  0:21 ` [PATCH v4 7/8] vmcore: treat memory chunks referenced by PT_LOAD program header entries in page-size boundary in vmcore_list HATAYAMA Daisuke
2013-04-29 19:51   ` Vivek Goyal
2013-05-07  7:38     ` HATAYAMA Daisuke
2013-05-07 15:24       ` Vivek Goyal
2013-04-13  0:21 ` [PATCH v4 8/8] vmcore: support mmap() on /proc/vmcore HATAYAMA Daisuke
2013-04-25 13:38 ` [PATCH v4 0/8] kdump, " Cliff Wickman

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