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sysctl: remove /proc/sys/vm/nr_pdflush_threads

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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>
This commit is contained in:
Jens Axboe 2017-09-30 23:39:05 -06:00
parent 85009b4f5f
commit b35bd0d9f8
2 changed files with 0 additions and 10 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

5
Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads
View file

@ -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.

5
kernel/sysctl.c
View file

@ -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,