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NFS: Remove requirement for inode->i_mutex from nfs_invalidate_mapping

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2010-02-19 17:03:30 -08:00
parent 5cf95214cc
commit 1cda707d52
4 changed files with 3 additions and 43 deletions
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41
fs/nfs/inode.c
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@@ -754,7 +754,7 @@ int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
return __nfs_revalidate_inode(server, inode);
}
static int nfs_invalidate_mapping_nolock(struct inode *inode, struct address_space *mapping)
static int nfs_invalidate_mapping(struct inode *inode, struct address_space *mapping)
{
struct nfs_inode *nfsi = NFS_I(inode);
@@ -775,49 +775,10 @@ static int nfs_invalidate_mapping_nolock(struct inode *inode, struct address_spa
return 0;
}
static int nfs_invalidate_mapping(struct inode *inode, struct address_space *mapping)
{
int ret = 0;
mutex_lock(&inode->i_mutex);
if (NFS_I(inode)->cache_validity & NFS_INO_INVALID_DATA) {
ret = nfs_sync_mapping(mapping);
if (ret == 0)
ret = nfs_invalidate_mapping_nolock(inode, mapping);
}
mutex_unlock(&inode->i_mutex);
return ret;
}
/**
* nfs_revalidate_mapping_nolock - Revalidate the pagecache
* @inode - pointer to host inode
* @mapping - pointer to mapping
*/
int nfs_revalidate_mapping_nolock(struct inode *inode, struct address_space *mapping)
{
struct nfs_inode *nfsi = NFS_I(inode);
int ret = 0;
if ((nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE)
|| nfs_attribute_timeout(inode) || NFS_STALE(inode)) {
ret = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
if (ret < 0)
goto out;
}
if (nfsi->cache_validity & NFS_INO_INVALID_DATA)
ret = nfs_invalidate_mapping_nolock(inode, mapping);
out:
return ret;
}
/**
* nfs_revalidate_mapping - Revalidate the pagecache
* @inode - pointer to host inode
* @mapping - pointer to mapping
*
* This version of the function will take the inode->i_mutex and attempt to
* flush out all dirty data if it needs to invalidate the page cache.
*/
int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
{