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Subject[Patch 10/21] Create /proc/pid/core entry
Create the /proc/PID/core entry.

Signed-off-by: Suzuki K. Poulose <suzuki@in.ibm.com>
Signed-off-by: Ananth N.Mavinakayanahalli <ananth@in.ibm.com>
---
fs/proc/Makefile | 1 +
fs/proc/base.c | 1 +
fs/proc/gencore.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
fs/proc/internal.h | 1 +
4 files changed, 51 insertions(+)
Index: linux-2.6.36-rc7/fs/proc/Makefile
===================================================================
--- linux-2.6.36-rc7.orig/fs/proc/Makefile
+++ linux-2.6.36-rc7/fs/proc/Makefile
@@ -19,6 +19,7 @@ proc-y += stat.o
proc-y += uptime.o
proc-y += version.o
proc-y += softirqs.o
+proc-$(CONFIG_ELF_CORE) += gencore.o
proc-$(CONFIG_PROC_SYSCTL) += proc_sysctl.o
proc-$(CONFIG_NET) += proc_net.o
proc-$(CONFIG_PROC_KCORE) += kcore.o
Index: linux-2.6.36-rc7/fs/proc/base.c
===================================================================
--- linux-2.6.36-rc7.orig/fs/proc/base.c
+++ linux-2.6.36-rc7/fs/proc/base.c
@@ -2735,6 +2735,7 @@ static const struct pid_entry tgid_base_
#endif
#ifdef CONFIG_ELF_CORE
REG("coredump_filter", S_IRUGO|S_IWUSR, proc_coredump_filter_operations),
+ REG("core", S_IRUSR, proc_gen_core_operations),
#endif
#ifdef CONFIG_TASK_IO_ACCOUNTING
INF("io", S_IRUGO, proc_tgid_io_accounting),
Index: linux-2.6.36-rc7/fs/proc/gencore.c
===================================================================
--- /dev/null
+++ linux-2.6.36-rc7/fs/proc/gencore.c
@@ -0,0 +1,48 @@
+/*
+ * Application core dump
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2010
+ *
+ * Authors:
+ * Ananth N.Mavinakayanahalli <ananth@in.ibm.com>
+ * Suzuki K. Poulose <suzuki@in.ibm.com>
+ */
+
+#include <linux/seq_file.h>
+#include "internal.h"
+
+static ssize_t read_gencore(struct file *file, char __user *buffer,
+ size_t buflen, loff_t *fpos)
+{
+ return 0;
+}
+
+static int release_gencore(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+static int open_gencore(struct inode *inode, struct file *filp)
+{
+ return 0;
+}
+
+const struct file_operations proc_gen_core_operations = {
+ .open = open_gencore,
+ .read = read_gencore,
+ .release = release_gencore,
+};
Index: linux-2.6.36-rc7/fs/proc/internal.h
===================================================================
--- linux-2.6.36-rc7.orig/fs/proc/internal.h
+++ linux-2.6.36-rc7/fs/proc/internal.h
@@ -60,6 +60,7 @@ extern const struct file_operations proc
extern const struct file_operations proc_pagemap_operations;
extern const struct file_operations proc_net_operations;
extern const struct inode_operations proc_net_inode_operations;
+extern const struct file_operations proc_gen_core_operations;

void proc_init_inodecache(void);


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