nfsd race fixes: ext4

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 5 insertions, 1 deletions

diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 08cac9fcace..6e6052879aa 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -826,7 +826,10 @@ got:
         ext4_set_inode_flags(inode);
         if (IS_DIRSYNC(inode))
                 handle->h_sync = 1;
-        insert_inode_hash(inode);
+        if (insert_inode_locked(inode) < 0) {
+                err = -EINVAL;
+                goto fail_drop;
+        }
         spin_lock(&sbi->s_next_gen_lock);
         inode->i_generation = sbi->s_next_generation++;
         spin_unlock(&sbi->s_next_gen_lock);
@@ -881,6 +884,7 @@ fail_drop:
         DQUOT_DROP(inode);
         inode->i_flags |= S_NOQUOTA;
         inode->i_nlink = 0;
+        unlock_new_inode(inode);
         iput(inode);
         brelse(bitmap_bh);
         return ERR_PTR(err);