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authorNikita Danilov <nikita@clusterfs.com>2005-06-21 17:14:38 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-21 18:46:14 -0700
commit295ab93497ec703f7d6eaf0787dd9768b83035fe (patch)
treee3dce05d4cab0d7d3907a7357d37932c99ffd76d /fs/proc
parent05b7438475ddbac47e75506913d44550f0e75938 (diff)
downloadop-kernel-dev-295ab93497ec703f7d6eaf0787dd9768b83035fe.zip
op-kernel-dev-295ab93497ec703f7d6eaf0787dd9768b83035fe.tar.gz
[PATCH] mm: add /proc/zoneinfo
Add /proc/zoneinfo file to display information about memory zones. Useful to analyze VM behaviour. Signed-off-by: Nikita Danilov <nikita@clusterfs.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/proc')
-rw-r--r--fs/proc/proc_misc.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index a60a3b3..63a9fbf 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -219,6 +219,19 @@ static struct file_operations fragmentation_file_operations = {
.release = seq_release,
};
+extern struct seq_operations zoneinfo_op;
+static int zoneinfo_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &zoneinfo_op);
+}
+
+static struct file_operations proc_zoneinfo_file_operations = {
+ .open = zoneinfo_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
static int version_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
@@ -589,6 +602,7 @@ void __init proc_misc_init(void)
create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations);
create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
create_seq_entry("vmstat",S_IRUGO, &proc_vmstat_file_operations);
+ create_seq_entry("zoneinfo",S_IRUGO, &proc_zoneinfo_file_operations);
create_seq_entry("diskstats", 0, &proc_diskstats_operations);
#ifdef CONFIG_MODULES
create_seq_entry("modules", 0, &proc_modules_operations);
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