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-rw-r--r--fs/ubifs/io.c67
1 files changed, 36 insertions, 31 deletions
diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
index e8e632a1dcd..762a7d6cec7 100644
--- a/fs/ubifs/io.c
+++ b/fs/ubifs/io.c
@@ -293,13 +293,15 @@ void ubifs_prep_grp_node(struct ubifs_info *c, void *node, int len, int last)
*
* This function is called when the write-buffer timer expires.
*/
-static void wbuf_timer_callback_nolock(unsigned long data)
+static enum hrtimer_restart wbuf_timer_callback_nolock(struct hrtimer *timer)
{
- struct ubifs_wbuf *wbuf = (struct ubifs_wbuf *)data;
+ struct ubifs_wbuf *wbuf = container_of(timer, struct ubifs_wbuf, timer);
+ dbg_io("jhead %d", wbuf->jhead);
wbuf->need_sync = 1;
wbuf->c->need_wbuf_sync = 1;
ubifs_wake_up_bgt(wbuf->c);
+ return HRTIMER_NORESTART;
}
/**
@@ -308,13 +310,16 @@ static void wbuf_timer_callback_nolock(unsigned long data)
*/
static void new_wbuf_timer_nolock(struct ubifs_wbuf *wbuf)
{
- ubifs_assert(!timer_pending(&wbuf->timer));
+ ubifs_assert(!hrtimer_active(&wbuf->timer));
- if (!wbuf->timeout)
+ if (wbuf->no_timer)
return;
-
- wbuf->timer.expires = jiffies + wbuf->timeout;
- add_timer(&wbuf->timer);
+ dbg_io("set timer for jhead %d, %llu-%llu millisecs", 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,
+ HRTIMER_MODE_REL);
}
/**
@@ -323,13 +328,10 @@ static void new_wbuf_timer_nolock(struct ubifs_wbuf *wbuf)
*/
static void cancel_wbuf_timer_nolock(struct ubifs_wbuf *wbuf)
{
- /*
- * If the syncer is waiting for the lock (from the background thread's
- * context) and another task is changing write-buffer then the syncing
- * should be canceled.
- */
+ if (wbuf->no_timer)
+ return;
wbuf->need_sync = 0;
- del_timer(&wbuf->timer);
+ hrtimer_cancel(&wbuf->timer);
}
/**
@@ -349,8 +351,8 @@ int ubifs_wbuf_sync_nolock(struct ubifs_wbuf *wbuf)
/* Write-buffer is empty or not seeked */
return 0;
- dbg_io("LEB %d:%d, %d bytes",
- wbuf->lnum, wbuf->offs, wbuf->used);
+ dbg_io("LEB %d:%d, %d bytes, jhead %d",
+ wbuf->lnum, wbuf->offs, wbuf->used, wbuf->jhead);
ubifs_assert(!(c->vfs_sb->s_flags & MS_RDONLY));
ubifs_assert(!(wbuf->avail & 7));
ubifs_assert(wbuf->offs + c->min_io_size <= c->leb_size);
@@ -390,7 +392,7 @@ int ubifs_wbuf_sync_nolock(struct ubifs_wbuf *wbuf)
* @offs: logical eraseblock offset to seek to
* @dtype: data type
*
- * This function targets the write buffer to logical eraseblock @lnum:@offs.
+ * This function targets the write-buffer to logical eraseblock @lnum:@offs.
* The write-buffer is synchronized if it is not empty. Returns zero in case of
* success and a negative error code in case of failure.
*/
@@ -399,7 +401,7 @@ int ubifs_wbuf_seek_nolock(struct ubifs_wbuf *wbuf, int lnum, int offs,
{
const struct ubifs_info *c = wbuf->c;
- dbg_io("LEB %d:%d", lnum, offs);
+ dbg_io("LEB %d:%d, jhead %d", lnum, offs, wbuf->jhead);
ubifs_assert(lnum >= 0 && lnum < c->leb_cnt);
ubifs_assert(offs >= 0 && offs <= c->leb_size);
ubifs_assert(offs % c->min_io_size == 0 && !(offs & 7));
@@ -506,9 +508,9 @@ int ubifs_wbuf_write_nolock(struct ubifs_wbuf *wbuf, void *buf, int len)
struct ubifs_info *c = wbuf->c;
int err, written, n, aligned_len = ALIGN(len, 8), offs;
- dbg_io("%d bytes (%s) to wbuf at LEB %d:%d", len,
- dbg_ntype(((struct ubifs_ch *)buf)->node_type), wbuf->lnum,
- wbuf->offs + wbuf->used);
+ dbg_io("%d bytes (%s) to jhead %d wbuf at LEB %d:%d", len,
+ dbg_ntype(((struct ubifs_ch *)buf)->node_type), wbuf->jhead,
+ wbuf->lnum, wbuf->offs + wbuf->used);
ubifs_assert(len > 0 && wbuf->lnum >= 0 && wbuf->lnum < c->leb_cnt);
ubifs_assert(wbuf->offs >= 0 && wbuf->offs % c->min_io_size == 0);
ubifs_assert(!(wbuf->offs & 7) && wbuf->offs <= c->leb_size);
@@ -533,8 +535,8 @@ int ubifs_wbuf_write_nolock(struct ubifs_wbuf *wbuf, void *buf, int len)
memcpy(wbuf->buf + wbuf->used, buf, len);
if (aligned_len == wbuf->avail) {
- dbg_io("flush wbuf to LEB %d:%d", wbuf->lnum,
- wbuf->offs);
+ dbg_io("flush jhead %d wbuf to LEB %d:%d",
+ wbuf->jhead, wbuf->lnum, wbuf->offs);
err = ubi_leb_write(c->ubi, wbuf->lnum, wbuf->buf,
wbuf->offs, c->min_io_size,
wbuf->dtype);
@@ -562,7 +564,8 @@ int ubifs_wbuf_write_nolock(struct ubifs_wbuf *wbuf, void *buf, int len)
* minimal I/O unit. We have to fill and flush write-buffer and switch
* to the next min. I/O unit.
*/
- dbg_io("flush wbuf to LEB %d:%d", wbuf->lnum, wbuf->offs);
+ dbg_io("flush jhead %d wbuf to LEB %d:%d",
+ wbuf->jhead, wbuf->lnum, wbuf->offs);
memcpy(wbuf->buf + wbuf->used, buf, wbuf->avail);
err = ubi_leb_write(c->ubi, wbuf->lnum, wbuf->buf, wbuf->offs,
c->min_io_size, wbuf->dtype);
@@ -695,7 +698,8 @@ int ubifs_read_node_wbuf(struct ubifs_wbuf *wbuf, void *buf, int type, int len,
int err, rlen, overlap;
struct ubifs_ch *ch = buf;
- dbg_io("LEB %d:%d, %s, length %d", lnum, offs, dbg_ntype(type), len);
+ dbg_io("LEB %d:%d, %s, length %d, jhead %d", lnum, offs,
+ dbg_ntype(type), len, wbuf->jhead);
ubifs_assert(wbuf && lnum >= 0 && lnum < c->leb_cnt && offs >= 0);
ubifs_assert(!(offs & 7) && offs < c->leb_size);
ubifs_assert(type >= 0 && type < UBIFS_NODE_TYPES_CNT);
@@ -819,7 +823,7 @@ out:
* @c: UBIFS file-system description object
* @wbuf: write-buffer to initialize
*
- * This function initializes write buffer. Returns zero in case of success
+ * This function initializes write-buffer. Returns zero in case of success
* %-ENOMEM in case of failure.
*/
int ubifs_wbuf_init(struct ubifs_info *c, struct ubifs_wbuf *wbuf)
@@ -845,20 +849,21 @@ int ubifs_wbuf_init(struct ubifs_info *c, struct ubifs_wbuf *wbuf)
wbuf->sync_callback = NULL;
mutex_init(&wbuf->io_mutex);
spin_lock_init(&wbuf->lock);
-
wbuf->c = c;
- init_timer(&wbuf->timer);
- wbuf->timer.function = wbuf_timer_callback_nolock;
- wbuf->timer.data = (unsigned long)wbuf;
- wbuf->timeout = DEFAULT_WBUF_TIMEOUT;
wbuf->next_ino = 0;
+ 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;
}
/**
* ubifs_wbuf_add_ino_nolock - add an inode number into the wbuf inode array.
- * @wbuf: the write-buffer whereto add
+ * @wbuf: the write-buffer where to add
* @inum: the inode number
*
* This function adds an inode number to the inode array of the write-buffer.
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-13 09:31:56 +0000