NFS: Ensure that we always drop inodes that have been marked as stale
There is no need to cache stale inodes.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 117183b..2faae14 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -107,6 +107,12 @@
return ino;
}
+int nfs_drop_inode(struct inode *inode)
+{
+ return NFS_STALE(inode) || generic_drop_inode(inode);
+}
+EXPORT_SYMBOL_GPL(nfs_drop_inode);
+
void nfs_clear_inode(struct inode *inode)
{
/*
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 89c1ee4..f0e6c7d 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -296,6 +296,7 @@
extern struct inode *nfs_alloc_inode(struct super_block *sb);
extern void nfs_destroy_inode(struct inode *);
extern int nfs_write_inode(struct inode *, struct writeback_control *);
+extern int nfs_drop_inode(struct inode *);
extern void nfs_clear_inode(struct inode *);
extern void nfs_evict_inode(struct inode *);
void nfs_zap_acl_cache(struct inode *inode);
diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c
index bd61221..84d2e9e 100644
--- a/fs/nfs/nfs4super.c
+++ b/fs/nfs/nfs4super.c
@@ -51,6 +51,7 @@
.alloc_inode = nfs_alloc_inode,
.destroy_inode = nfs_destroy_inode,
.write_inode = nfs4_write_inode,
+ .drop_inode = nfs_drop_inode,
.put_super = nfs_put_super,
.statfs = nfs_statfs,
.evict_inode = nfs4_evict_inode,
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index e12cea4..aa5315b 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -308,6 +308,7 @@
.alloc_inode = nfs_alloc_inode,
.destroy_inode = nfs_destroy_inode,
.write_inode = nfs_write_inode,
+ .drop_inode = nfs_drop_inode,
.put_super = nfs_put_super,
.statfs = nfs_statfs,
.evict_inode = nfs_evict_inode,