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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2014-05-08 13:39:35 +0200 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2014-07-10 18:35:19 +0200 |
| commit | 54e6fc38e888a54b016e1e04e1eceea78ddf7ace (patch) | |
| tree | b4908bb91f765a1f117df38379ff37cbcf8b451c /lib | |
| parent | 944410e97cfcec38369eeb5f77d0e8da91d68afb (diff) | |
| download | lwn-54e6fc38e888a54b016e1e04e1eceea78ddf7ace.tar.gz lwn-54e6fc38e888a54b016e1e04e1eceea78ddf7ace.zip | |
drbd: debugfs: add per volume oldest_requests
Show oldest requests
* pending master bio completion and,
* if different, local disk bio completion.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/lru_cache.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/lib/lru_cache.c b/lib/lru_cache.c index 6111cd19762d..852c81e3ba9a 100644 --- a/lib/lru_cache.c +++ b/lib/lru_cache.c @@ -643,9 +643,10 @@ void lc_set(struct lru_cache *lc, unsigned int enr, int index) * lc_dump - Dump a complete LRU cache to seq in textual form. * @lc: the lru cache to operate on * @seq: the &struct seq_file pointer to seq_printf into - * @utext: user supplied "heading" or other info + * @utext: user supplied additional "heading" or other info * @detail: function pointer the user may provide to dump further details - * of the object the lc_element is embedded in. + * of the object the lc_element is embedded in. May be NULL. + * Note: a leading space ' ' and trailing newline '\n' is implied. */ void lc_seq_dump_details(struct seq_file *seq, struct lru_cache *lc, char *utext, void (*detail) (struct seq_file *, struct lc_element *)) @@ -654,16 +655,18 @@ void lc_seq_dump_details(struct seq_file *seq, struct lru_cache *lc, char *utext struct lc_element *e; int i; - seq_printf(seq, "\tnn: lc_number refcnt %s\n ", utext); + seq_printf(seq, "\tnn: lc_number (new nr) refcnt %s\n ", utext); for (i = 0; i < nr_elements; i++) { e = lc_element_by_index(lc, i); - if (e->lc_number == LC_FREE) { - seq_printf(seq, "\t%2d: FREE\n", i); - } else { - seq_printf(seq, "\t%2d: %4u %4u ", i, - e->lc_number, e->refcnt); + if (e->lc_number != e->lc_new_number) + seq_printf(seq, "\t%5d: %6d %8d %6d ", + i, e->lc_number, e->lc_new_number, e->refcnt); + else + seq_printf(seq, "\t%5d: %6d %-8s %6d ", + i, e->lc_number, "-\"-", e->refcnt); + if (detail) detail(seq, e); - } + seq_putc(seq, '\n'); } } |