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nfs: add missing rcu-walk check

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Signed-off-by: Nick Piggin <npiggin@kernel.dk>
This commit is contained in:
Nick Piggin 2011-01-14 02:48:39 +00:00
parent 2c6755988a
commit 657e94b673
1 changed files with 5 additions and 1 deletions
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6
fs/nfs/dir.c
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@ -1410,11 +1410,15 @@ no_open:
static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd) static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
{ {
struct dentry *parent = NULL; struct dentry *parent = NULL;
struct inode *inode = dentry->d_inode; struct inode *inode;
struct inode *dir; struct inode *dir;
struct nfs_open_context *ctx; struct nfs_open_context *ctx;
int openflags, ret = 0; int openflags, ret = 0;
if (nd->flags & LOOKUP_RCU)
return -ECHILD;
inode = dentry->d_inode;
if (!is_atomic_open(nd) || d_mountpoint(dentry)) if (!is_atomic_open(nd) || d_mountpoint(dentry))
goto no_open; goto no_open;