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authorTheodore Ts'o <tytso@mit.edu>2009-01-03 20:27:38 -0500
committerTheodore Ts'o <tytso@mit.edu>2009-01-03 20:27:38 -0500
commit30773840c19cea60dcef39545960d541b1ac1cf8 (patch)
treef220a2dce451a40dc7264e8fd70c77c5a3908873 /fs/jbd2/journal.c
parentd7cfa4684d82f58e5d7cb73b8a3c88c169937f25 (diff)
downloadop-kernel-dev-30773840c19cea60dcef39545960d541b1ac1cf8.zip
op-kernel-dev-30773840c19cea60dcef39545960d541b1ac1cf8.tar.gz
ext4: add fsync batch tuning knobs
Add new mount options, min_batch_time and max_batch_time, which controls how long the jbd2 layer should wait for additional filesystem operations to get batched with a synchronous write transaction. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/jbd2/journal.c')
-rw-r--r--fs/jbd2/journal.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 74d8729..fd1d755 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -964,6 +964,8 @@ static journal_t * journal_init_common (void)
spin_lock_init(&journal->j_state_lock);
journal->j_commit_interval = (HZ * JBD2_DEFAULT_MAX_COMMIT_AGE);
+ journal->j_min_batch_time = 0;
+ journal->j_max_batch_time = 15000; /* 15ms */
/* The journal is marked for error until we succeed with recovery! */
journal->j_flags = JBD2_ABORT;
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