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| author | Brian Foster <bfoster@redhat.com> | 2018-08-01 07:20:33 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-08-02 23:05:14 -0700 |
| commit | 9b1f4e9831df29776031e86e112e68784f1fc079 (patch) | |
| tree | 02cd52f1c6fe6851354ecb33cf6850173e618f46 /fs/xfs/libxfs/xfs_attr.c | |
| parent | 60f31a609ed3d28791acb2bc24188cb7e2259176 (diff) | |
| download | lwn-9b1f4e9831df29776031e86e112e68784f1fc079.tar.gz lwn-9b1f4e9831df29776031e86e112e68784f1fc079.zip | |
xfs: cancel dfops on xfs_defer_finish() error
The current semantics of xfs_defer_finish() require the caller to
call xfs_defer_cancel() on error. This is slightly inconsistent with
transaction commit error handling where a failed commit cleans up
the transaction before returning.
More significantly, the only requirement for exposure of
->dop_pending outside of xfs_defer_finish() is so that
xfs_defer_cancel() can drain it on error. Since the only recourse of
xfs_defer_finish() errors is cancellation, mirror the transaction
logic and cancel remaining dfops before returning from
xfs_defer_finish() with an error.
Beside simplifying xfs_defer_finish() semantics, this ensures that
xfs_defer_finish() always returns with an empty ->dop_pending and
thus facilitates removal of the list from xfs_defer_ops.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_attr.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_attr.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index 3190dfc21b60..1e671d4eb6fa 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -590,7 +590,7 @@ xfs_attr_leaf_addname( goto out_defer_cancel; error = xfs_defer_finish(&args->trans); if (error) - goto out_defer_cancel; + return error; /* * Commit the current trans (including the inode) and start @@ -678,7 +678,7 @@ xfs_attr_leaf_addname( goto out_defer_cancel; error = xfs_defer_finish(&args->trans); if (error) - goto out_defer_cancel; + return error; } /* @@ -741,7 +741,7 @@ xfs_attr_leaf_removename( goto out_defer_cancel; error = xfs_defer_finish(&args->trans); if (error) - goto out_defer_cancel; + return error; } return 0; out_defer_cancel: @@ -867,7 +867,7 @@ restart: goto out_defer_cancel; error = xfs_defer_finish(&args->trans); if (error) - goto out_defer_cancel; + goto out; /* * Commit the node conversion and start the next @@ -891,7 +891,7 @@ restart: goto out_defer_cancel; error = xfs_defer_finish(&args->trans); if (error) - goto out_defer_cancel; + goto out; } else { /* * Addition succeeded, update Btree hashvals. @@ -987,7 +987,7 @@ restart: goto out_defer_cancel; error = xfs_defer_finish(&args->trans); if (error) - goto out_defer_cancel; + goto out; } /* @@ -1110,7 +1110,7 @@ xfs_attr_node_removename( goto out_defer_cancel; error = xfs_defer_finish(&args->trans); if (error) - goto out_defer_cancel; + goto out; /* * Commit the Btree join operation and start a new trans. */ @@ -1141,7 +1141,7 @@ xfs_attr_node_removename( goto out_defer_cancel; error = xfs_defer_finish(&args->trans); if (error) - goto out_defer_cancel; + goto out; } else xfs_trans_brelse(args->trans, bp); } |