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author | Theodore Ts'o <tytso@mit.edu> | 2009-01-03 20:27:38 -0500 |
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committer | Theodore Ts'o <tytso@mit.edu> | 2009-01-03 20:27:38 -0500 |
commit | 30773840c19cea60dcef39545960d541b1ac1cf8 (patch) | |
tree | f220a2dce451a40dc7264e8fd70c77c5a3908873 /include | |
parent | d7cfa4684d82f58e5d7cb73b8a3c88c169937f25 (diff) | |
download | linux-30773840c19cea60dcef39545960d541b1ac1cf8.tar.gz linux-30773840c19cea60dcef39545960d541b1ac1cf8.tar.bz2 linux-30773840c19cea60dcef39545960d541b1ac1cf8.zip |
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 'include')
-rw-r--r-- | include/linux/jbd2.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index ab8cef130c28..a3cd647ea1bc 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -956,6 +956,14 @@ struct journal_s */ u64 j_average_commit_time; + /* + * minimum and maximum times that we should wait for + * additional filesystem operations to get batched into a + * synchronous handle in microseconds + */ + u32 j_min_batch_time; + u32 j_max_batch_time; + /* This function is called when a transaction is closed */ void (*j_commit_callback)(journal_t *, transaction_t *); |