diff options
| author | Jan Kara <jack@suse.cz> | 2024-06-24 20:01:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-08-03 09:54:19 +0300 |
| commit | b81c3758c1df0c308ba8b28934fcd63d9dba9c41 (patch) | |
| tree | da49078b62d2ec1825b2799b3baeccf3ea4fbf02 /include | |
| parent | 7a8532b537ca069bbf5ae4890b4f2f79eb856a3a (diff) | |
| download | linux-b81c3758c1df0c308ba8b28934fcd63d9dba9c41.tar.xz | |
jbd2: precompute number of transaction descriptor blocks
commit e3a00a23781c1f2fcda98a7aecaac515558e7a35 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -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 36b627ad5416..8553dc1d0e89 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1084,6 +1084,13 @@ 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? |