fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / jffs2 / file.c

diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 1c0a08d..3989f7e 100644 (file)
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -27,13 +27,20 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
                        struct page **pagep, void **fsdata);
 static int jffs2_readpage (struct file *filp, struct page *pg);
 
-int jffs2_fsync(struct file *filp, int datasync)
+int jffs2_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
 {
        struct inode *inode = filp->f_mapping->host;
        struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+       int ret;
+
+       ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+       if (ret)
+               return ret;
 
+       mutex_lock(&inode->i_mutex);
        /* Trigger GC to flush any pending writes for this inode */
        jffs2_flush_wbuf_gc(c, inode->i_ino);
+       mutex_unlock(&inode->i_mutex);
 
        return 0;
 }