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| author | Tao Ma <boyu.mt@taobao.com> | 2012-09-26 00:08:57 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2012-09-26 00:08:57 -0400 |
| commit | 0acdb8876fead922c9ffa6768c5675a37485c48c (patch) | |
| tree | b4cca27cf1cff13e704e5eed85a8248a38da8ec7 /crypto | |
| parent | 7f1468d1d50d368097ab13596dc08eaba7eace7f (diff) | |
| download | talos-obmc-linux-0acdb8876fead922c9ffa6768c5675a37485c48c.tar.gz talos-obmc-linux-0acdb8876fead922c9ffa6768c5675a37485c48c.zip | |
ext4: don't call update_backups() multiple times for the same bg
When performing an online resize, we add a bunch of groups at one time
in ext4_flex_group_add, so in most cases a lot of group descriptors
will be in the same group block. But in the end of this function,
update_backups will be called for every group descriptor and the same
block will be copied and journalled again and again. It is really a
waste.
Fix things so we only update a particular bg descriptor block once and
skip subsequent updates of the same block.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'crypto')
0 files changed, 0 insertions, 0 deletions
