Re: [PATCH 5.10 004/126] ext4: shrink race window in ext4_should_retry_alloc()

Hi!

From: Eric Whitney enwlinux@gmail.com

A per filesystem percpu counter exported via sysfs is added to allow users or developers to track the number of times the retry limit is exceeded without resorting to debugging methods. This should provide some insight into worst case retry behavior.

This adds new counter exported via sysfs, but no documentation of that counter...

Best regards, Pavel

@@ -257,6 +259,7 @@ static struct attribute *ext4_attrs[] = { ATTR_LIST(session_write_kbytes), ATTR_LIST(lifetime_write_kbytes), ATTR_LIST(reserved_clusters),

• ATTR_LIST(sra_exceeded_retry_limit), ATTR_LIST(inode_readahead_blks), ATTR_LIST(inode_goal), ATTR_LIST(mb_stats),