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authorDave Kleikamp <shaggy@austin.ibm.com>2005-07-25 09:58:54 -0400
committerDave Kleikamp <shaggy@austin.ibm.com>2005-07-25 09:58:54 -0400
commitc2783f3a625b2aba943ef94623e277557a91a448 (patch)
treee262b750f4e8cd5785417a55dd68b427e31bd86f /fs/jfs/jfs_logmgr.c
parentc40c202493d18de42fcd0b8b5d68c22aefb70f03 (diff)
JFS: Don't set log_SYNCBARRIER when log->active == 0
If a metadata page is kept active, it is possible that the sync barrier logic continues to trigger, even if all active transactions have been phyically written to the journal. This can cause a hang, since the completion of the journal I/O is what unsets the sync barrier flag to allow new transactions to be created. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Diffstat (limited to 'fs/jfs/jfs_logmgr.c')
-rw-r--r--fs/jfs/jfs_logmgr.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index 79d07624bfe1..22815e88e7cc 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1030,7 +1030,8 @@ static int lmLogSync(struct jfs_log * log, int nosyncwait)
1030 * starting until all current transactions are completed 1030 * starting until all current transactions are completed
1031 * by setting syncbarrier flag. 1031 * by setting syncbarrier flag.
1032 */ 1032 */
1033 if (written > LOGSYNC_BARRIER(logsize) && logsize > 32 * LOGPSIZE) { 1033 if (!test_bit(log_SYNCBARRIER, &log->flag) &&
1034 (written > LOGSYNC_BARRIER(logsize)) && log->active) {
1034 set_bit(log_SYNCBARRIER, &log->flag); 1035 set_bit(log_SYNCBARRIER, &log->flag);
1035 jfs_info("log barrier on: lsn=0x%x syncpt=0x%x", lsn, 1036 jfs_info("log barrier on: lsn=0x%x syncpt=0x%x", lsn,
1036 log->syncpt); 1037 log->syncpt);