| To: | Dave Chinner <david@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH 2/2] xfs: kick inode writeback when low on memory |
| From: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
| Date: | Fri, 15 Apr 2011 04:09:16 -0400 |
| Cc: | Alex Elder <aelder@xxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx |
| In-reply-to: | <20110414050846.GJ21395@dastard> |
| References: | <1302157196-1988-1-git-send-email-david@xxxxxxxxxxxxx> <1302157196-1988-3-git-send-email-david@xxxxxxxxxxxxx> <1302726822.2023.128.camel@doink> <20110414050846.GJ21395@dastard> |
| User-agent: | Mutt/1.5.21 (2010-09-15) |
On Thu, Apr 14, 2011 at 03:08:46PM +1000, Dave Chinner wrote: > Unfortunately, we simply can't take the s_umount lock in reclaim > context. So further hackery is going to be required here - I think > that writeback_inodes_sb_nr_if_idle() need to use trylocks. if the > s_umount lock is taken in write mode, then it's pretty certain that > the sb is busy.... http://thread.gmane.org/gmane.linux.file-systems/48373/focus=48628 |
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