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backing-dev: kill unused pdflush_proc_obsolete() 

After commit b35bd0d9f8, pdflush_proc_obsolete() is no longer
used. Kill the function and declaration.

Reported-by: Rakesh Pandit <rakesh@tuxera.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2017-10-06 08:15:15 -06:00
parent 5fdee2127f
commit 775d3a35dc
2 changed files with 0 additions and 22 deletions
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2
include/linux/backing-dev.h
View File

@ -172,8 +172,6 @@ static inline int wb_congested(struct bdi_writeback *wb, int cong_bits)
long congestion_wait(int sync, long timeout);
long wait_iff_congested(struct pglist_data *pgdat, int sync, long timeout);
int pdflush_proc_obsolete(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos);
static inline bool bdi_cap_stable_pages_required(struct backing_dev_info *bdi)
{

20
mm/backing-dev.c
View File

@ -1072,23 +1072,3 @@ long wait_iff_congested(struct pglist_data *pgdat, int sync, long timeout)
return ret;
}
EXPORT_SYMBOL(wait_iff_congested);
int pdflush_proc_obsolete(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
char kbuf[] = "0\n";
if (*ppos || *lenp < sizeof(kbuf)) {
*lenp = 0;
return 0;
}
if (copy_to_user(buffer, kbuf, sizeof(kbuf)))
return -EFAULT;
pr_warn_once("%s exported in /proc is scheduled for removal\n",
table->procname);
*lenp = 2;
*ppos += *lenp;
return 2;
}