Hi folks, I've updated the lock documentation according to our finding for transaction_t. Does this patch look good to you? Cheers, Alex
commit 13ac907c45c5da7d691f6e10972de5e56e0072c6
Author: Alexander Lochmann <alexander.lochmann@xxxxxxxxxxxxxx>
Date: Thu Oct 15 15:24:52 2020 +0200
Updated locking documentation for transaction_t
We used LockDoc to derive locking rules for each member
of struct transaction_t.
Based on those results, we extended the existing documentation
by more members of struct transaction_t, and updated the existing
documentation.
Signed-off-by: Alexander Lochmann <alexander.lochmann@xxxxxxxxxxxxxx>
Signed-off-by: Horst Schirmeier <horst.schirmeier@xxxxxxxxxxxxxx>
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 08f904943ab2..a11c78e4af4e 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -532,6 +532,7 @@ struct transaction_chp_stats_s {
* The transaction keeps track of all of the buffers modified by a
* running transaction, and all of the buffers committed but not yet
* flushed to home for finished transactions.
+ * (Locking Documentation improved by LockDoc)
*/
/*
@@ -650,12 +651,12 @@ struct transaction_s
unsigned long t_start;
/*
- * When commit was requested
+ * When commit was requested [journal_t.j_state_lock]
*/
unsigned long t_requested;
/*
- * Checkpointing stats [j_checkpoint_sem]
+ * Checkpointing stats [journal_t.j_list_lock]
*/
struct transaction_chp_stats_s t_chp_stats;
Attachment:
signature.asc
Description: OpenPGP digital signature
