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authorDave Chinner <dchinner@redhat.com>2020-08-18 01:41:01 +0200
committerDarrick J. Wong <darrick.wong@oracle.com>2020-09-07 03:05:51 +0200
commit718ecc50359ec7a45c3195305ab998a46db491dc (patch)
tree23fa139cce6d28558ba6c9f5b30ce56143e05b3b /fs/xfs/xfs_inode_item.c
parentxfs: remove kmem_realloc() (diff)
downloadlinux-718ecc50359ec7a45c3195305ab998a46db491dc.tar.xz
linux-718ecc50359ec7a45c3195305ab998a46db491dc.zip
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>
Diffstat (limited to 'fs/xfs/xfs_inode_item.c')
-rw-r--r--fs/xfs/xfs_inode_item.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 6c65938cee1c..099ae8ee7908 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -491,8 +491,7 @@ xfs_inode_item_push(
(ip->i_flags & XFS_ISTALE))
return XFS_ITEM_PINNED;
- /* If the inode is already flush locked, we're already flushing. */
- if (xfs_isiflocked(ip))
+ if (xfs_iflags_test(ip, XFS_IFLUSHING))
return XFS_ITEM_FLUSHING;
if (!xfs_buf_trylock(bp))
@@ -703,7 +702,7 @@ xfs_iflush_finish(
iip->ili_last_fields = 0;
iip->ili_flush_lsn = 0;
spin_unlock(&iip->ili_lock);
- xfs_ifunlock(iip->ili_inode);
+ xfs_iflags_clear(iip->ili_inode, XFS_IFLUSHING);
if (drop_buffer)
xfs_buf_rele(bp);
}
@@ -711,8 +710,8 @@ xfs_iflush_finish(
/*
* Inode buffer IO completion routine. It is responsible for removing inodes
- * attached to the buffer from the AIL if they have not been re-logged, as well
- * as completing the flush and unlocking the inode.
+ * attached to the buffer from the AIL if they have not been re-logged and
+ * completing the inode flush.
*/
void
xfs_iflush_done(
@@ -755,10 +754,10 @@ xfs_iflush_done(
}
/*
- * This is the inode flushing abort routine. It is called from xfs_iflush when
+ * This is the inode flushing abort routine. It is called when
* the filesystem is shutting down to clean up the inode state. It is
* responsible for removing the inode item from the AIL if it has not been
- * re-logged, and unlocking the inode's flush lock.
+ * re-logged and clearing the inode's flush state.
*/
void
xfs_iflush_abort(
@@ -790,7 +789,7 @@ xfs_iflush_abort(
list_del_init(&iip->ili_item.li_bio_list);
spin_unlock(&iip->ili_lock);
}
- xfs_ifunlock(ip);
+ xfs_iflags_clear(ip, XFS_IFLUSHING);
if (bp)
xfs_buf_rele(bp);
}