83 lines
3.1 KiB
Diff
83 lines
3.1 KiB
Diff
|
From 854826c9d526fd81077742c3b000e3f7fcaef3ce Mon Sep 17 00:00:00 2001
|
||
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
|
||
|
|
Date: Tue, 20 Sep 2016 10:36:14 +0200
|
||
|
|
Subject: [PATCH] ubifs: Drop softlimit and delta fields from struct ubifs_wbuf
|
||
|
|
MIME-Version: 1.0
|
||
|
|
Content-Type: text/plain; charset=UTF-8
|
||
|
|
Content-Transfer-Encoding: 8bit
|
||
|
|
|
||
|
|
Values of these fields are set during init and never modified. They are
|
||
|
|
used (read) in a single function only. There isn't really any reason to
|
||
|
|
keep them in a struct. It only makes struct just a bit bigger without
|
||
|
|
any visible gain.
|
||
|
|
|
||
|
|
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
|
||
|
|
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
|
||
|
|
Signed-off-by: Richard Weinberger <richard@nod.at>
|
||
|
|
---
|
||
|
|
fs/ubifs/io.c | 18 ++++++++++--------
|
||
|
|
fs/ubifs/ubifs.h | 5 -----
|
||
|
|
2 files changed, 10 insertions(+), 13 deletions(-)
|
||
|
|
|
||
|
|
--- a/fs/ubifs/io.c
|
||
|
|
+++ b/fs/ubifs/io.c
|
||
|
|
@@ -452,16 +452,22 @@ static enum hrtimer_restart wbuf_timer_c
|
||
|
|
*/
|
||
|
|
static void new_wbuf_timer_nolock(struct ubifs_wbuf *wbuf)
|
||
|
|
{
|
||
|
|
+ ktime_t softlimit = ktime_set(WBUF_TIMEOUT_SOFTLIMIT, 0);
|
||
|
|
+ unsigned long long delta;
|
||
|
|
+
|
||
|
|
+ delta = WBUF_TIMEOUT_HARDLIMIT - WBUF_TIMEOUT_SOFTLIMIT;
|
||
|
|
+ delta *= 1000000000ULL;
|
||
|
|
+
|
||
|
|
ubifs_assert(!hrtimer_active(&wbuf->timer));
|
||
|
|
+ ubifs_assert(delta <= ULONG_MAX);
|
||
|
|
|
||
|
|
if (wbuf->no_timer)
|
||
|
|
return;
|
||
|
|
dbg_io("set timer for jhead %s, %llu-%llu millisecs",
|
||
|
|
dbg_jhead(wbuf->jhead),
|
||
|
|
- div_u64(ktime_to_ns(wbuf->softlimit), USEC_PER_SEC),
|
||
|
|
- div_u64(ktime_to_ns(wbuf->softlimit) + wbuf->delta,
|
||
|
|
- USEC_PER_SEC));
|
||
|
|
- hrtimer_start_range_ns(&wbuf->timer, wbuf->softlimit, wbuf->delta,
|
||
|
|
+ div_u64(ktime_to_ns(softlimit), USEC_PER_SEC),
|
||
|
|
+ div_u64(ktime_to_ns(softlimit) + delta, USEC_PER_SEC));
|
||
|
|
+ hrtimer_start_range_ns(&wbuf->timer, softlimit, delta,
|
||
|
|
HRTIMER_MODE_REL);
|
||
|
|
}
|
||
|
|
|
||
|
|
@@ -1059,10 +1065,6 @@ int ubifs_wbuf_init(struct ubifs_info *c
|
||
|
|
|
||
|
|
hrtimer_init(&wbuf->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
|
||
|
|
wbuf->timer.function = wbuf_timer_callback_nolock;
|
||
|
|
- wbuf->softlimit = ktime_set(WBUF_TIMEOUT_SOFTLIMIT, 0);
|
||
|
|
- wbuf->delta = WBUF_TIMEOUT_HARDLIMIT - WBUF_TIMEOUT_SOFTLIMIT;
|
||
|
|
- wbuf->delta *= 1000000000ULL;
|
||
|
|
- ubifs_assert(wbuf->delta <= ULONG_MAX);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
--- a/fs/ubifs/ubifs.h
|
||
|
|
+++ b/fs/ubifs/ubifs.h
|
||
|
|
@@ -645,9 +645,6 @@ typedef int (*ubifs_lpt_scan_callback)(s
|
||
|
|
* @io_mutex: serializes write-buffer I/O
|
||
|
|
* @lock: serializes @buf, @lnum, @offs, @avail, @used, @next_ino and @inodes
|
||
|
|
* fields
|
||
|
|
- * @softlimit: soft write-buffer timeout interval
|
||
|
|
- * @delta: hard and soft timeouts delta (the timer expire interval is @softlimit
|
||
|
|
- * and @softlimit + @delta)
|
||
|
|
* @timer: write-buffer timer
|
||
|
|
* @no_timer: non-zero if this write-buffer does not have a timer
|
||
|
|
* @need_sync: non-zero if the timer expired and the wbuf needs sync'ing
|
||
|
|
@@ -676,8 +673,6 @@ struct ubifs_wbuf {
|
||
|
|
int (*sync_callback)(struct ubifs_info *c, int lnum, int free, int pad);
|
||
|
|
struct mutex io_mutex;
|
||
|
|
spinlock_t lock;
|
||
|
|
- ktime_t softlimit;
|
||
|
|
- unsigned long long delta;
|
||
|
|
struct hrtimer timer;
|
||
|
|
unsigned int no_timer:1;
|
||
|
|
unsigned int need_sync:1;
|