NFS: Use cond_resched_lock() to reduce latencies in the commit scans

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Ensure that we conditionally drop the inode->i_lock when it is safe
to do so in the commit loops.
We do so after locking the nfs_page, but before removing it from the
commit list. We can then use list_safe_reset_next to recover the loop
after the lock is retaken.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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This commit is contained in:

Trond Myklebust 2012-03-17 11:59:30 -04:00

parent 5ae67c4fee

commit 3b3be88d67

3 changed files with 20 additions and 10 deletions

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11

fs/nfs/nfs4filelayout.c

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8

fs/nfs/pnfs.h

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11

fs/nfs/write.c

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