UBIFS: fix debugging check

The debugging check which verifies that we never write outside of the file
length was incorrect, since it was multiplying file length by the page size,
instead of dividing. Fix this.

Spotted-by: hujianyang <hujianyang@huawei.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 727506b5e2ea34a30b25b5ef352e5e47611201e2..0ab7f7dfb98b632818a9b1dde1e74f4799633b8b 100644 (file)
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -905,7 +905,7 @@ static int do_writepage(struct page *page, int len)
 #ifdef UBIFS_DEBUG
        struct ubifs_inode *ui = ubifs_inode(inode);
        spin_lock(&ui->ui_lock);
-       ubifs_assert(page->index <= ui->synced_i_size << PAGE_CACHE_SIZE);
+       ubifs_assert(page->index <= ui->synced_i_size >> PAGE_CACHE_SHIFT);
        spin_unlock(&ui->ui_lock);
 #endif