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| author | Theodore Ts'o <tytso@mit.edu> | 2010-10-28 03:30:10 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2010-10-28 03:30:10 +0200 |
| commit | bd2d0210cf22f2bd0cef72eb97cf94fc7d31d8cc (patch) | |
| tree | f0d1902b7ff4294114614cc706855c3d6b131f73 /fs/ext4/super.c | |
| parent | ext4: move mpage_put_bnr_to_bhs()'s functionality to mpage_da_submit_io() (diff) | |
| download | linux-bd2d0210cf22f2bd0cef72eb97cf94fc7d31d8cc.tar.xz linux-bd2d0210cf22f2bd0cef72eb97cf94fc7d31d8cc.zip | |
ext4: use bio layer instead of buffer layer in mpage_da_submit_io
Call the block I/O layer directly instad of going through the buffer
layer. This should give us much better performance and scalability,
as well as lowering our CPU utilization when doing buffered writeback.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/super.c')
| -rw-r--r-- | fs/ext4/super.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 8a24e9be7cb0..e13b3c3534d7 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -4769,9 +4769,12 @@ static int __init init_ext4_fs(void) int err; ext4_check_flag_values(); - err = init_ext4_system_zone(); + err = init_ext4_pageio(); if (err) return err; + err = init_ext4_system_zone(); + if (err) + goto out5; ext4_kset = kset_create_and_add("ext4", NULL, fs_kobj); if (!ext4_kset) goto out4; @@ -4812,6 +4815,8 @@ out3: kset_unregister(ext4_kset); out4: exit_ext4_system_zone(); +out5: + exit_ext4_pageio(); return err; } @@ -4827,6 +4832,7 @@ static void __exit exit_ext4_fs(void) remove_proc_entry("fs/ext4", NULL); kset_unregister(ext4_kset); exit_ext4_system_zone(); + exit_ext4_pageio(); } MODULE_AUTHOR("Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others"); |