[JFFS2] Quiet lockdep false positive.

[linux-2.6-omap-h63xx.git] / fs / jffs2 / dir.c

diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index c63e7a96af0dd025996c80b707b710213d7bdb1d..2bba3d3435be79d6b2b5f76a1bdff46b78ed6f50 100644 (file)
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -208,6 +208,13 @@ static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode,
        f = JFFS2_INODE_INFO(inode);
        dir_f = JFFS2_INODE_INFO(dir_i);
 
+       /* jffs2_do_create() will want to lock it, _after_ reserving
+          space and taking c-alloc_sem. If we keep it locked here,
+          lockdep gets unhappy (although it's a false positive;
+          nothing else will be looking at this inode yet so there's
+          no chance of AB-BA deadlock involving its f->sem). */
+       mutex_unlock(&f->sem);
+
        ret = jffs2_do_create(c, dir_f, f, ri,
                              dentry->d_name.name, dentry->d_name.len);
        if (ret)