From 295ab93497ec703f7d6eaf0787dd9768b83035fe Mon Sep 17 00:00:00 2001 From: Nikita Danilov Date: Tue, 21 Jun 2005 17:14:38 -0700 Subject: [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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/proc_misc.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'fs') 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); -- cgit v1.1