[PATCH 042/102] xfs: add xlog_grant_head_init

Dave Chinner
2012-08-23T05:03:37Z

From: Christoph Hellwig <hch@infradead.org>

Upstream commit: c303c5b8c3b8eace41c4fba26205b50c0f8e4ca0

Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
fs/xfs/xfs_log.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 5c5aa54..6ef0264 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -150,6 +150,15 @@ xlog_grant_add_space(
} while (head_val != old);
}

+STATIC void
+xlog_grant_head_init(
+ struct xlog_grant_head *head)
+{
+ xlog_assign_grant_head(&head->grant, 1, 0);
+ INIT_LIST_HEAD(&head->waiters);
+ spin_lock_init(&head->lock);
+}
+
STATIC bool
xlog_reserveq_wake(
struct log *log,
@@ -1108,12 +1117,9 @@ xlog_alloc_log(xfs_mount_t *mp,
xlog_assign_atomic_lsn(&log->l_tail_lsn, 1, 0);
xlog_assign_atomic_lsn(&log->l_last_sync_lsn, 1, 0);
log->l_curr_cycle = 1; /* 0 is bad since this is initial value */
- xlog_assign_grant_head(&log->l_reserve_head.grant, 1, 0);
- xlog_assign_grant_head(&log->l_write_head.grant, 1, 0);
- INIT_LIST_HEAD(&log->l_reserve_head.waiters);
- INIT_LIST_HEAD(&log->l_write_head.waiters);
- spin_lock_init(&log->l_reserve_head.lock);
- spin_lock_init(&log->l_write_head.lock);
+
+ xlog_grant_head_init(&log->l_reserve_head);
+ xlog_grant_head_init(&log->l_write_head);

error = EFSCORRUPTED;
if (xfs_sb_version_hassector(&mp->m_sb)) {