On 2/25/21 9:02 PM, Darrick J. Wong wrote:
On Thu, Feb 18, 2021 at 09:53:32AM -0700, Allison Henderson wrote:
This patch separate xfs_attr_node_addname into two functions. This will
help to make it easier to hoist parts of xfs_attr_node_addname that need
state management
Signed-off-by: Allison Henderson <allison.henderson@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_attr.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index 205ad26..bee8d3fb 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -54,6 +54,7 @@ STATIC int xfs_attr_leaf_hasname(struct xfs_da_args *args, struct xfs_buf **bp);
STATIC int xfs_attr_node_get(xfs_da_args_t *args);
STATIC int xfs_attr_node_addname(xfs_da_args_t *args);
STATIC int xfs_attr_node_removename(xfs_da_args_t *args);
+STATIC int xfs_attr_node_addname_work(struct xfs_da_args *args);
STATIC int xfs_attr_node_hasname(xfs_da_args_t *args,
struct xfs_da_state **state);
STATIC int xfs_attr_fillstate(xfs_da_state_t *state);
@@ -1059,6 +1060,25 @@ xfs_attr_node_addname(
return error;
}
+ error = xfs_attr_node_addname_work(args);
+out:
+ if (state)
+ xfs_da_state_free(state);
+ if (error)
+ return error;
+ return retval;
+}
+
+
+STATIC
+int xfs_attr_node_addname_work(
What, erm, work does this function do? Since it survives to the end of
the patchset, I think this needs a better name (or at least needs a
comment about what it's actually supposed to do).
To directly answer the question: it's here to help xfs_attr_set_iter not
be any bigger than it has to. I think we likely struggled with the name
because it's almost like it's just the "remainder" of the operation that
doesnt need state management
AFAICT you're splitting node_addname() into two functions because we're
at a transaction roll point, and this "_work" function exists to remove
the copy of the xattr key that has the "INCOMPLETE" bit set (aka the old
one), right?
Thats about right. Maybe just a quick comment?
/*
* Removes the old xattr key marked with the INCOMPLETE bit
*/
I suppose we could consider something like
"xfs_attr_node_addname_remv_incomplete"? Or
xfs_attr_node_addname_cleanup? Trying to cram it into the name maybe
getting a bit wordy too.
Allison
--D
+ struct xfs_da_args *args)
+{
+ struct xfs_da_state *state = NULL;
+ struct xfs_da_state_blk *blk;
+ int retval = 0;
+ int error = 0;
+
/*
* Re-find the "old" attribute entry after any split ops. The INCOMPLETE
* flag means that we will find the "old" attr, not the "new" one.
--
2.7.4
