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path: root/fs/xfs/xfs_log.c
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Diffstat (limited to 'fs/xfs/xfs_log.c')
-rw-r--r--fs/xfs/xfs_log.c49
1 files changed, 25 insertions, 24 deletions
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index ad3d26ddfe3..91b00a5686c 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -226,20 +226,24 @@ xlog_grant_sub_space(struct log *log, int bytes)
static void
xlog_grant_add_space_write(struct log *log, int bytes)
{
- log->l_grant_write_bytes += bytes;
- if (log->l_grant_write_bytes > log->l_logsize) {
- log->l_grant_write_bytes -= log->l_logsize;
+ int tmp = log->l_logsize - log->l_grant_write_bytes;
+ if (tmp > bytes)
+ log->l_grant_write_bytes += bytes;
+ else {
log->l_grant_write_cycle++;
+ log->l_grant_write_bytes = bytes - tmp;
}
}
static void
xlog_grant_add_space_reserve(struct log *log, int bytes)
{
- log->l_grant_reserve_bytes += bytes;
- if (log->l_grant_reserve_bytes > log->l_logsize) {
- log->l_grant_reserve_bytes -= log->l_logsize;
+ int tmp = log->l_logsize - log->l_grant_reserve_bytes;
+ if (tmp > bytes)
+ log->l_grant_reserve_bytes += bytes;
+ else {
log->l_grant_reserve_cycle++;
+ log->l_grant_reserve_bytes = bytes - tmp;
}
}
@@ -1228,7 +1232,7 @@ xlog_alloc_log(xfs_mount_t *mp,
spin_lock_init(&log->l_icloglock);
spin_lock_init(&log->l_grant_lock);
- initnsema(&log->l_flushsema, 0, "ic-flush");
+ sv_init(&log->l_flush_wait, 0, "flush_wait");
/* log record size must be multiple of BBSIZE; see xlog_rec_header_t */
ASSERT((XFS_BUF_SIZE(bp) & BBMASK) == 0);
@@ -1570,10 +1574,9 @@ xlog_dealloc_log(xlog_t *log)
}
#endif
next_iclog = iclog->ic_next;
- kmem_free(iclog, sizeof(xlog_in_core_t));
+ kmem_free(iclog);
iclog = next_iclog;
}
- freesema(&log->l_flushsema);
spinlock_destroy(&log->l_icloglock);
spinlock_destroy(&log->l_grant_lock);
@@ -1587,7 +1590,7 @@ xlog_dealloc_log(xlog_t *log)
}
#endif
log->l_mp->m_log = NULL;
- kmem_free(log, sizeof(xlog_t));
+ kmem_free(log);
} /* xlog_dealloc_log */
/*
@@ -2097,6 +2100,7 @@ xlog_state_do_callback(
int funcdidcallbacks; /* flag: function did callbacks */
int repeats; /* for issuing console warnings if
* looping too many times */
+ int wake = 0;
spin_lock(&log->l_icloglock);
first_iclog = iclog = log->l_iclog;
@@ -2278,15 +2282,13 @@ xlog_state_do_callback(
}
#endif
- flushcnt = 0;
- if (log->l_iclog->ic_state & (XLOG_STATE_ACTIVE|XLOG_STATE_IOERROR)) {
- flushcnt = log->l_flushcnt;
- log->l_flushcnt = 0;
- }
+ if (log->l_iclog->ic_state & (XLOG_STATE_ACTIVE|XLOG_STATE_IOERROR))
+ wake = 1;
spin_unlock(&log->l_icloglock);
- while (flushcnt--)
- vsema(&log->l_flushsema);
-} /* xlog_state_do_callback */
+
+ if (wake)
+ sv_broadcast(&log->l_flush_wait);
+}
/*
@@ -2384,16 +2386,15 @@ restart:
}
iclog = log->l_iclog;
- if (! (iclog->ic_state == XLOG_STATE_ACTIVE)) {
- log->l_flushcnt++;
- spin_unlock(&log->l_icloglock);
+ if (iclog->ic_state != XLOG_STATE_ACTIVE) {
xlog_trace_iclog(iclog, XLOG_TRACE_SLEEP_FLUSH);
XFS_STATS_INC(xs_log_noiclogs);
- /* Ensure that log writes happen */
- psema(&log->l_flushsema, PINOD);
+
+ /* Wait for log writes to have flushed */
+ sv_wait(&log->l_flush_wait, 0, &log->l_icloglock, 0);
goto restart;
}
- ASSERT(iclog->ic_state == XLOG_STATE_ACTIVE);
+
head = &iclog->ic_header;
atomic_inc(&iclog->ic_refcnt); /* prevents sync */