From: Oleg Drokin <green@linuxhacker.ru>
Date: Mon, 6 Jul 2015 16:48:43 +0000 (-0400)
Subject: staging/lustre: remove alloc_fail_rate sysctl
X-Git-Tag: v4.14-rc1~4839^2~730
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=80595b7498a1c4c7bb4f3db3bd8b7998196c8719;p=platform%2Fkernel%2Flinux-rpi.git

staging/lustre: remove alloc_fail_rate sysctl

It was used to control allocation failure rate, but there is
in-kernel way of doing that that's more versatile too.

This is going to remove just the sysctl, the underlying variable
will be removed once all OBD_ALLOC* macros removal patchseries land.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
index 54f0a81f..b9a7d2f 100644
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
+++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
@@ -203,37 +203,6 @@ static int proc_max_dirty_pages_in_mb(struct ctl_table *table, int write,
 	return rc;
 }
 
-static int proc_alloc_fail_rate(struct ctl_table *table, int write,
-			 void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	int rc	  = 0;
-
-	if (!table->data || !table->maxlen || !*lenp || (*ppos && !write)) {
-		*lenp = 0;
-		return 0;
-	}
-	if (write) {
-		rc = lprocfs_write_frac_helper(buffer, *lenp,
-					       (unsigned int *)table->data,
-					       OBD_ALLOC_FAIL_MULT);
-	} else {
-		char buf[21];
-		int  len;
-
-		len = lprocfs_read_frac_helper(buf, 21,
-					       *(unsigned int *)table->data,
-					       OBD_ALLOC_FAIL_MULT);
-		if (len > *lenp)
-			len = *lenp;
-		buf[len] = '\0';
-		if (copy_to_user(buffer, buf, len))
-			return -EFAULT;
-		*lenp = len;
-	}
-	*ppos += *lenp;
-	return rc;
-}
-
 static struct ctl_table obd_table[] = {
 	{
 		.procname = "timeout",
@@ -299,13 +268,6 @@ static struct ctl_table obd_table[] = {
 		.proc_handler = &proc_set_timeout
 	},
 	{
-		.procname = "alloc_fail_rate",
-		.data     = &obd_alloc_fail_rate,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_alloc_fail_rate
-	},
-	{
 		.procname = "max_dirty_mb",
 		.data     = &obd_max_dirty_pages,
 		.maxlen   = sizeof(int),