xfs: xfs_iflock is no longer a completion
With the recent rework of the inode cluster flushing, we no longer
ever wait on the the inode flush "lock". It was never a lock in the
first place, just a completion to allow callers to wait for inode IO
to complete. We now never wait for flush completion as all inode
flushing is non-blocking. Hence we can get rid of all the iflock
infrastructure and instead just set and check a state flag.
Rename the XFS_IFLOCK flag to XFS_IFLUSHING, convert all the
xfs_iflock_nowait() test-and-set operations on that flag, and
replace all the xfs_ifunlock() calls to clear operations.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 101028e..aa6aad2 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -52,7 +52,6 @@ xfs_inode_alloc(
XFS_STATS_INC(mp, vn_active);
ASSERT(atomic_read(&ip->i_pincount) == 0);
- ASSERT(!xfs_isiflocked(ip));
ASSERT(ip->i_ino == 0);
/* initialise the xfs inode */
@@ -123,7 +122,7 @@ void
xfs_inode_free(
struct xfs_inode *ip)
{
- ASSERT(!xfs_isiflocked(ip));
+ ASSERT(!xfs_iflags_test(ip, XFS_IFLUSHING));
/*
* Because we use RCU freeing we need to ensure the inode always
@@ -1035,23 +1034,21 @@ xfs_reclaim_inode(
if (!xfs_ilock_nowait(ip, XFS_ILOCK_EXCL))
goto out;
- if (!xfs_iflock_nowait(ip))
+ if (xfs_iflags_test_and_set(ip, XFS_IFLUSHING))
goto out_iunlock;
if (XFS_FORCED_SHUTDOWN(ip->i_mount)) {
xfs_iunpin_wait(ip);
- /* xfs_iflush_abort() drops the flush lock */
xfs_iflush_abort(ip);
goto reclaim;
}
if (xfs_ipincount(ip))
- goto out_ifunlock;
+ goto out_clear_flush;
if (!xfs_inode_clean(ip))
- goto out_ifunlock;
+ goto out_clear_flush;
- xfs_ifunlock(ip);
+ xfs_iflags_clear(ip, XFS_IFLUSHING);
reclaim:
- ASSERT(!xfs_isiflocked(ip));
/*
* Because we use RCU freeing we need to ensure the inode always appears
@@ -1101,8 +1098,8 @@ xfs_reclaim_inode(
__xfs_inode_free(ip);
return;
-out_ifunlock:
- xfs_ifunlock(ip);
+out_clear_flush:
+ xfs_iflags_clear(ip, XFS_IFLUSHING);
out_iunlock:
xfs_iunlock(ip, XFS_ILOCK_EXCL);
out: