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NFSv4: Defer inode revalidation when setting up a delegation

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Currently we force a synchronous call to __nfs_revalidate_inode() in
nfs_inode_set_delegation(). This not only ensures that we cannot call
nfs_inode_set_delegation from an asynchronous context, but it also slows
down any call to open().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2007-07-03 16:10:55 -04:00
parent 8383e4602c
commit 412c77cee6
3 changed files with 10 additions and 5 deletions
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fs/nfs/inode.c
+3 -1
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@@ -1072,8 +1072,10 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
invalid &= ~NFS_INO_INVALID_DATA;
if (data_stable)
invalid &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME|NFS_INO_REVAL_PAGECACHE);
if (!nfs_have_delegation(inode, FMODE_READ))
if (!nfs_have_delegation(inode, FMODE_READ) ||
(nfsi->cache_validity & NFS_INO_REVAL_FORCED))
nfsi->cache_validity |= invalid;
nfsi->cache_validity &= ~NFS_INO_REVAL_FORCED;
return 0;
out_changed: