From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 17 May 2013 19:21:56 +0000 (-0400)
Subject: qnx6: qnx6_readdir() has a braino in pos calculation
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1d7095c72d35eee4ebc28e66563e636b9adafeb2;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

qnx6: qnx6_readdir() has a braino in pos calculation

We want to mask lower 5 bits out, not leave only those and clear the
rest...  As it is, we end up always starting to read from the beginning
of directory, no matter what the current position had been.

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

diff --git a/fs/qnx6/dir.c b/fs/qnx6/dir.c
index 8798d065e400..afa6be6fc397 100644
--- a/fs/qnx6/dir.c
+++ b/fs/qnx6/dir.c
@@ -120,7 +120,7 @@ static int qnx6_readdir(struct file *filp, void *dirent, filldir_t filldir)
 	struct inode *inode = file_inode(filp);
 	struct super_block *s = inode->i_sb;
 	struct qnx6_sb_info *sbi = QNX6_SB(s);
-	loff_t pos = filp->f_pos & (QNX6_DIR_ENTRY_SIZE - 1);
+	loff_t pos = filp->f_pos & ~(QNX6_DIR_ENTRY_SIZE - 1);
 	unsigned long npages = dir_pages(inode);
 	unsigned long n = pos >> PAGE_CACHE_SHIFT;
 	unsigned start = (pos & ~PAGE_CACHE_MASK) / QNX6_DIR_ENTRY_SIZE;