Re: [PATCH] fs/quota: use unsigned int helper for sysctl fs.quota.*

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On 07/11/2019 14.50, Jan Kara wrote:
On Thu 07-11-19 13:08:11, Konstantin Khlebnikov wrote:
Report counters as unsigned, otherwise they turn negative at overflow:

# sysctl fs.quota
fs.quota.allocated_dquots = 22327
fs.quota.cache_hits = -489852115
fs.quota.drops = -487288718
fs.quota.free_dquots = 22083
fs.quota.lookups = -486883485
fs.quota.reads = 22327
fs.quota.syncs = 335064
fs.quota.writes = 3088689

Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>

Fair enough but then 'stats' array in dqstats should be unsigned as well
for consistency and why not actually make everything long when we are at
it? percpu_counter we use is s64 anyway...

Ok. I'll patch this too.


								Honza

---
  fs/quota/dquot.c |    2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 6e826b454082..606e1e39674b 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -2865,7 +2865,7 @@ static int do_proc_dqstats(struct ctl_table *table, int write,
  	/* Update global table */
  	dqstats.stat[type] =
  			percpu_counter_sum_positive(&dqstats.counter[type]);
-	return proc_dointvec(table, write, buffer, lenp, ppos);
+	return proc_douintvec(table, write, buffer, lenp, ppos);
  }
static struct ctl_table fs_dqstats_table[] = {




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