On Fri, Sep 21, 2012 at 05:12:05PM -0500, Eric Sandeen wrote:
> > - if (free_blocks < 2 * dirty_blocks)
> > - writeback_inodes_sb_if_idle(sb, WB_REASON_FS_FREE_SPACE);
> > + if ((free_blocks < 2 * dirty_blocks) &&
> > writeback_in_progress(sb->s_bdi))
> > + writeback_inodes_sb(sb, WB_REASON_FS_FREE_SPACE);
>
> Looks to me like this inverts the logic.
>
> We used to write back if idle, now we fire it off if it's already underway.
>
> Shouldn't it be:
>
> + if ((free_blocks < 2 * dirty_blocks) &&
> !writeback_in_progress(sb->s_bdi))
> + writeback_inodes_sb(sb, WB_REASON_FS_FREE_SPACE);
Oops, nice catch. Thanks for the review!!
I've added the missing '!' to the patch.
- Ted
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