diff options
| author | Roland McGrath <roland@gnu.org> | 1999-10-23 18:09:28 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1999-10-23 18:09:28 +0000 |
| commit | af624dc18cabfe34d7df9256508715bb636bb9ec (patch) | |
| tree | b5702cdc68e60599b149cf609f68db4362658f7f /libdiskfs/sync-interval.c | |
| parent | adfbcfadb5203c66e44badf7068ee7960d0300f9 (diff) | |
1999-10-23 Roland McGrath <roland@baalperazim.frob.com>
* sync-interval.c (periodic_sync): With diskfs_fsys_lock reader lock
held, check _diskfs_diskdirty and don't sync if not dirty.
Diffstat (limited to 'libdiskfs/sync-interval.c')
| -rw-r--r-- | libdiskfs/sync-interval.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/libdiskfs/sync-interval.c b/libdiskfs/sync-interval.c index f2cb8570..8167fc4a 100644 --- a/libdiskfs/sync-interval.c +++ b/libdiskfs/sync-interval.c @@ -112,8 +112,14 @@ periodic_sync (int interval) if (! diskfs_readonly) { rwlock_reader_lock (&diskfs_fsys_lock); - diskfs_sync_everything (0); - diskfs_set_hypermetadata (0, 0); + /* Only sync if we need to, to avoid clearing the clean flag + when it's just been set. Any other thread doing a sync + will have held the lock while it did its work. */ + if (_diskfs_diskdirty) + { + diskfs_sync_everything (0); + diskfs_set_hypermetadata (0, 0); + } rwlock_reader_unlock (&diskfs_fsys_lock); } ports_end_rpc (pi, &link); |