From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 9 Jun 2012 17:06:09 +0000 (-0400)
Subject: affs: unobfuscate affs_fix_dcache()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=12447c40394695c9a19920c65fea124bdf3ea034;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

affs: unobfuscate affs_fix_dcache()

and add a comment on what it's doing

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

diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index 1c7fd7928d1f..843cdc994804 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -122,15 +122,13 @@ affs_remove_hash(struct inode *dir, struct buffer_head *rem_bh)
 }
 
 static void
-affs_fix_dcache(struct dentry *dentry, u32 entry_ino)
+affs_fix_dcache(struct inode *inode, u32 entry_ino)
 {
-	struct inode *inode = dentry->d_inode;
-	void *data = dentry->d_fsdata;
-
+	struct dentry *dentry;
 	spin_lock(&inode->i_lock);
 	list_for_each_entry(dentry, &inode->i_dentry, d_alias) {
 		if (entry_ino == (u32)(long)dentry->d_fsdata) {
-			dentry->d_fsdata = data;
+			dentry->d_fsdata = (void *)inode->i_ino;
 			break;
 		}
 	}
@@ -172,7 +170,11 @@ affs_remove_link(struct dentry *dentry)
 		}
 
 		affs_lock_dir(dir);
-		affs_fix_dcache(dentry, link_ino);
+		/*
+		 * if there's a dentry for that block, make it
+		 * refer to inode itself.
+		 */
+		affs_fix_dcache(inode, link_ino);
 		retval = affs_remove_hash(dir, link_bh);
 		if (retval) {
 			affs_unlock_dir(dir);