diff options
| author | Jan Kara <jack@suse.cz> | 2024-06-24 19:01:18 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2024-07-08 23:59:37 -0400 |
| commit | e3a00a23781c1f2fcda98a7aecaac515558e7a35 (patch) | |
| tree | ab0886700f3f7bb50f266e4b0077f759cb9b57c5 /include/linux/jbd2.h | |
| parent | 4aa99c71e42ad60178c1154ec24e3df9c684fb67 (diff) | |
jbd2: precompute number of transaction descriptor blocks
Instead of computing the number of descriptor blocks a transaction can
have each time we need it (which is currently when starting each
transaction but will become more frequent later) precompute the number
once during journal initialization together with maximum transaction
size. We perform the precomputation whenever journal feature set is
updated similarly as for computation of
journal->j_revoke_records_per_block.
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Link: https://patch.msgid.link/20240624170127.3253-2-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include/linux/jbd2.h')
| -rw-r--r-- | include/linux/jbd2.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index f91b930abe20..b900c642210c 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1086,6 +1086,13 @@ struct journal_s int j_revoke_records_per_block; /** + * @j_transaction_overhead: + * + * Number of blocks each transaction needs for its own bookkeeping + */ + int j_transaction_overhead_buffers; + + /** * @j_commit_interval: * * What is the maximum transaction lifetime before we begin a commit? |