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authorHarshad Shirwadkar <harshadshirwadkar@gmail.com>2020-11-05 19:58:54 -0800
committerTheodore Ts'o <tytso@mit.edu>2020-11-06 23:01:02 -0500
commitede7dc7fa0af619afc08995776eadb9ff3b0a711 (patch)
treed1a6596d27bca10f74edfa11fa4ae287c24147d8 /fs/jbd2/commit.c
parenta80f7fcf18672ae4971a6b713b58c0d389aa99fe (diff)
jbd2: rename j_maxlen to j_total_len and add jbd2_journal_max_txn_bufs
The on-disk superblock field sb->s_maxlen represents the total size of the journal including the fast commit area and is no more the max number of blocks available for a transaction. The maximum number of blocks available to a transaction is reduced by the number of fast commit blocks. So, this patch renames j_maxlen to j_total_len to better represent its intent. Also, it adds a function to calculate max number of bufs available for a transaction. Suggested-by: Jan Kara <jack@suse.cz> Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com> Link: https://lore.kernel.org/r/20201106035911.1942128-6-harshadshirwadkar@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/jbd2/commit.c')
-rw-r--r--fs/jbd2/commit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index fa688e163a80..ec516490cb35 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -801,7 +801,7 @@ start_journal_io:
if (first_block < journal->j_tail)
freed += journal->j_last - journal->j_first;
/* Update tail only if we free significant amount of space */
- if (freed < journal->j_maxlen / 4)
+ if (freed < jbd2_journal_get_max_txn_bufs(journal))
update_tail = 0;
}
J_ASSERT(commit_transaction->t_state == T_COMMIT);