Commit 50a4952f authored Oct 15, 2020 by Alexander Lochmann Committed by Theodore Ts'o Dec 03, 2020

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.

Link: https://lore.kernel.org/r/10cfbef1-994c-c604-f8a6-b1042fcc622f@tu-dortmund.de


Signed-off-by: Alexander Lochmann <alexander.lochmann@tu-dortmund.de>
Signed-off-by: Horst Schirmeier <horst.schirmeier@tu-dortmund.de>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

parent 418baf2c

include/linux/jbd2.h

+3 −2

Original line number	Diff line number	Diff line
		@@ -538,6 +538,7 @@ 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)
		*/

		/*
		@@ -658,12 +659,12 @@ struct transaction_s
		unsigned long t_start;

		/*
		* When commit was requested
		* When commit was requested [j_state_lock]
		*/
		unsigned long t_requested;

		/*
		* Checkpointing stats [j_checkpoint_sem]
		* Checkpointing stats [j_list_lock]
		*/
		struct transaction_chp_stats_s t_chp_stats;

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