| To: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH 3/5] xfs: reduce ilock hold times in xfs_setattr_size |
| From: | Mark Tinguely <tinguely@xxxxxxx> |
| Date: | Mon, 02 Apr 2012 14:26:33 -0500 |
| Cc: | xfs@xxxxxxxxxxx |
| In-reply-to: | <20120327143826.615954651@xxxxxxxxxxxxxxxxxxxxxx> |
| References: | <20120327143445.196524266@xxxxxxxxxxxxxxxxxxxxxx> <20120327143826.615954651@xxxxxxxxxxxxxxxxxxxxxx> |
| User-agent: | Mozilla/5.0 (X11; FreeBSD amd64; rv:9.0) Gecko/20120122 Thunderbird/9.0 |
On 03/27/12 09:34, Christoph Hellwig wrote: We do not need the ilock for most checks done in the beginning of xfs_setattr_size. Replace the long critical section before starting the transaction with a smaller one around xfs_zero_eof and an optional one inside xfs_qm_dqattach that isn't entered unless using quotas. While this isn't a big optimization for xfs_setattr_size itself it will allow pushing the ilock into xfs_zero_eof itself later. Signed-off-by: Christoph Hellwig<hch@xxxxxx> Looks good. Reviewed-by: Mark Tinguely <tinguely@xxxxxxx> |
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