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authorIngo Molnar <mingo@elte.hu>2008-10-12 15:05:39 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-12 15:05:39 +0200
commita9b9e81c915e4a57ac3b21d1a7fa7ff184639780 (patch)
tree98304395fbb5b9c74fca35b196cd414c1949f280 /fs/xfs/xfs_log.c
parenta8b71a2810386a5ac8f43d2095fe3355f0d8db37 (diff)
parentfd048088306656824958e7783ffcee27e241b361 (diff)
Merge branch 'linus' into x86/memory-corruption-check
Diffstat (limited to 'fs/xfs/xfs_log.c')
-rw-r--r--fs/xfs/xfs_log.c67
1 files changed, 44 insertions, 23 deletions
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index ccba14eb9db..0b02c644355 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -124,16 +124,27 @@ STATIC void xlog_verify_tail_lsn(xlog_t *log, xlog_in_core_t *iclog,
STATIC int xlog_iclogs_empty(xlog_t *log);
#if defined(XFS_LOG_TRACE)
+
+#define XLOG_TRACE_LOGGRANT_SIZE 2048
+#define XLOG_TRACE_ICLOG_SIZE 256
+
+void
+xlog_trace_loggrant_alloc(xlog_t *log)
+{
+ log->l_grant_trace = ktrace_alloc(XLOG_TRACE_LOGGRANT_SIZE, KM_NOFS);
+}
+
+void
+xlog_trace_loggrant_dealloc(xlog_t *log)
+{
+ ktrace_free(log->l_grant_trace);
+}
+
void
xlog_trace_loggrant(xlog_t *log, xlog_ticket_t *tic, xfs_caddr_t string)
{
unsigned long cnts;
- if (!log->l_grant_trace) {
- log->l_grant_trace = ktrace_alloc(2048, KM_NOSLEEP);
- if (!log->l_grant_trace)
- return;
- }
/* ticket counts are 1 byte each */
cnts = ((unsigned long)tic->t_ocnt) | ((unsigned long)tic->t_cnt) << 8;
@@ -157,10 +168,20 @@ xlog_trace_loggrant(xlog_t *log, xlog_ticket_t *tic, xfs_caddr_t string)
}
void
+xlog_trace_iclog_alloc(xlog_in_core_t *iclog)
+{
+ iclog->ic_trace = ktrace_alloc(XLOG_TRACE_ICLOG_SIZE, KM_NOFS);
+}
+
+void
+xlog_trace_iclog_dealloc(xlog_in_core_t *iclog)
+{
+ ktrace_free(iclog->ic_trace);
+}
+
+void
xlog_trace_iclog(xlog_in_core_t *iclog, uint state)
{
- if (!iclog->ic_trace)
- iclog->ic_trace = ktrace_alloc(256, KM_NOFS);
ktrace_enter(iclog->ic_trace,
(void *)((unsigned long)state),
(void *)((unsigned long)current_pid()),
@@ -170,8 +191,15 @@ xlog_trace_iclog(xlog_in_core_t *iclog, uint state)
(void *)NULL, (void *)NULL);
}
#else
+
+#define xlog_trace_loggrant_alloc(log)
+#define xlog_trace_loggrant_dealloc(log)
#define xlog_trace_loggrant(log,tic,string)
+
+#define xlog_trace_iclog_alloc(iclog)
+#define xlog_trace_iclog_dealloc(iclog)
#define xlog_trace_iclog(iclog,state)
+
#endif /* XFS_LOG_TRACE */
@@ -1005,11 +1033,12 @@ xlog_iodone(xfs_buf_t *bp)
l = iclog->ic_log;
/*
- * If the ordered flag has been removed by a lower
- * layer, it means the underlyin device no longer supports
+ * If the _XFS_BARRIER_FAILED flag was set by a lower
+ * layer, it means the underlying device no longer supports
* barrier I/O. Warn loudly and turn off barriers.
*/
- if ((l->l_mp->m_flags & XFS_MOUNT_BARRIER) && !XFS_BUF_ORDERED(bp)) {
+ if (bp->b_flags & _XFS_BARRIER_FAILED) {
+ bp->b_flags &= ~_XFS_BARRIER_FAILED;
l->l_mp->m_flags &= ~XFS_MOUNT_BARRIER;
xfs_fs_cmn_err(CE_WARN, l->l_mp,
"xlog_iodone: Barriers are no longer supported"
@@ -1231,6 +1260,7 @@ xlog_alloc_log(xfs_mount_t *mp,
spin_lock_init(&log->l_grant_lock);
sv_init(&log->l_flush_wait, 0, "flush_wait");
+ xlog_trace_loggrant_alloc(log);
/* log record size must be multiple of BBSIZE; see xlog_rec_header_t */
ASSERT((XFS_BUF_SIZE(bp) & BBMASK) == 0);
@@ -1285,6 +1315,8 @@ xlog_alloc_log(xfs_mount_t *mp,
sv_init(&iclog->ic_force_wait, SV_DEFAULT, "iclog-force");
sv_init(&iclog->ic_write_wait, SV_DEFAULT, "iclog-write");
+ xlog_trace_iclog_alloc(iclog);
+
iclogp = &iclog->ic_next;
}
*iclogp = log->l_iclog; /* complete ring */
@@ -1565,11 +1597,7 @@ xlog_dealloc_log(xlog_t *log)
sv_destroy(&iclog->ic_force_wait);
sv_destroy(&iclog->ic_write_wait);
xfs_buf_free(iclog->ic_bp);
-#ifdef XFS_LOG_TRACE
- if (iclog->ic_trace != NULL) {
- ktrace_free(iclog->ic_trace);
- }
-#endif
+ xlog_trace_iclog_dealloc(iclog);
next_iclog = iclog->ic_next;
kmem_free(iclog);
iclog = next_iclog;
@@ -1578,14 +1606,7 @@ xlog_dealloc_log(xlog_t *log)
spinlock_destroy(&log->l_grant_lock);
xfs_buf_free(log->l_xbuf);
-#ifdef XFS_LOG_TRACE
- if (log->l_trace != NULL) {
- ktrace_free(log->l_trace);
- }
- if (log->l_grant_trace != NULL) {
- ktrace_free(log->l_grant_trace);
- }
-#endif
+ xlog_trace_loggrant_dealloc(log);
log->l_mp->m_log = NULL;
kmem_free(log);
} /* xlog_dealloc_log */