From b35bd0d9f8a8ea17aae40893e18274d191a2d2c5 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Sat, 30 Sep 2017 23:39:05 -0600
Subject: [PATCH] sysctl: remove /proc/sys/vm/nr_pdflush_threads
This tunable has been obsolete since 2.6.32, and writes to the
file have been failing and complaining in dmesg since then:
nr_pdflush_threads exported in /proc is scheduled for removal
That was 8 years ago. Remove the file ABI obsolete notice, and
the sysfs file.
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads | 5 -----
kernel/sysctl.c | 5 -----
2 files changed, 10 deletions(-)
delete mode 100644 Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads
diff --git a/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads b/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads
deleted file mode 100644
index b0b0eeb20fe34..0000000000000
--- a/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads
+++ /dev/null
@@ -1,5 +0,0 @@
-What: /proc/sys/vm/nr_pdflush_threads
-Date: June 2012
-Contact: Wanpeng Li <liwp@linux.vnet.ibm.com>
-Description: Since pdflush is replaced by per-BDI flusher, the interface of old pdflush
- exported in /proc/sys/vm/ should be removed.
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 6648fbbb8157f..a5dd8d82c2538 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1344,11 +1344,6 @@ static struct ctl_table vm_table[] = {
.proc_handler = dirtytime_interval_handler,
.extra1 = &zero,
},
- {
- .procname = "nr_pdflush_threads",
- .mode = 0444 /* read-only */,
- .proc_handler = pdflush_proc_obsolete,
- },
{
.procname = "swappiness",
.data = &vm_swappiness,
--
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