Kernel bump from 4.1.3-rt to 4.1.7-rt.

[kvmfornfv.git] / kernel / fs / dcache.c

diff --git a/kernel/fs/dcache.c b/kernel/fs/dcache.c
index e1d20e1..c1dad92 100644 (file)
--- a/kernel/fs/dcache.c
+++ b/kernel/fs/dcache.c
@@ -643,7 +643,7 @@ static inline bool fast_dput(struct dentry *dentry)
 
        /*
         * If we have a d_op->d_delete() operation, we sould not
-        * let the dentry count go to zero, so use "put__or_lock".
+        * let the dentry count go to zero, so use "put_or_lock".
         */
        if (unlikely(dentry->d_flags & DCACHE_OP_DELETE))
                return lockref_put_or_lock(&dentry->d_lockref);
@@ -698,7 +698,7 @@ static inline bool fast_dput(struct dentry *dentry)
         */
        smp_rmb();
        d_flags = ACCESS_ONCE(dentry->d_flags);
-       d_flags &= DCACHE_REFERENCED | DCACHE_LRU_LIST;
+       d_flags &= DCACHE_REFERENCED | DCACHE_LRU_LIST | DCACHE_DISCONNECTED;
 
        /* Nothing to do? Dropping the reference was all we needed? */
        if (d_flags == (DCACHE_REFERENCED | DCACHE_LRU_LIST) && !d_unhashed(dentry))
@@ -777,6 +777,9 @@ repeat:
        if (unlikely(d_unhashed(dentry)))
                goto kill_it;
 
+       if (unlikely(dentry->d_flags & DCACHE_DISCONNECTED))
+               goto kill_it;
+
        if (unlikely(dentry->d_flags & DCACHE_OP_DELETE)) {
                if (dentry->d_op->d_delete(dentry))
                        goto kill_it;