Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfashe...

[powerpc.git] / fs / ocfs2 / dir.c

diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 67e6866..c441ef1 100644 (file)
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -403,7 +403,7 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
                            struct buffer_head **new_de_bh)
 {
        int status = 0;
-       int credits, num_free_extents;
+       int credits, num_free_extents, drop_alloc_sem = 0;
        loff_t dir_i_size;
        struct ocfs2_dinode *fe = (struct ocfs2_dinode *) parent_fe_bh->b_data;
        struct ocfs2_alloc_context *data_ac = NULL;
@@ -452,6 +452,9 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
                credits = OCFS2_SIMPLE_DIR_EXTEND_CREDITS;
        }
 
+       down_write(&OCFS2_I(dir)->ip_alloc_sem);
+       drop_alloc_sem = 1;
+
        handle = ocfs2_start_trans(osb, credits);
        if (IS_ERR(handle)) {
                status = PTR_ERR(handle);
@@ -497,6 +500,8 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
        *new_de_bh = new_bh;
        get_bh(*new_de_bh);
 bail:
+       if (drop_alloc_sem)
+               up_write(&OCFS2_I(dir)->ip_alloc_sem);
        if (handle)
                ocfs2_commit_trans(osb, handle);