Re: XFS: Fine-tuning for checks before the function call "xfs_qm_dqrele"?
From: SF Markus Elfring
Date: Wed Jul 01 2015 - 03:50:20 EST
> xfs_dqrele_inode() gets called on every inode in the inode cache,
> and this change results in a cacheline in every inode being dirtied
> even if they don't have dquots attached. Given the inode cache can
> hold tens to hundreds of millions of inodes on large machines, we
> don't want to dirty any cachelines we don't need to while walking
> the inode cache and releasing dquots...
Would it make sense to annotate checks before such function calls
as "LIKELY"?
Regards,
Markus
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/