[PATCH] isofs: add +w bit for non-RR discs

[Jan Engelhardt <jengelh@computergmbh.de>]

Add %S_IWUGO bit for files on ISO-9660 filesystems without RockRidge
extensions. This allows one to modify the files right after copying,
without having to do an extra recursive chmod if `cp -p` or
`rsync -p` is used.

References: http://lkml.org/lkml/2007/4/1/164
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>

---
 fs/isofs/inode.c |   13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

Index: linux-2.6.23/fs/isofs/inode.c
===================================================================
--- linux-2.6.23.orig/fs/isofs/inode.c
+++ linux-2.6.23/fs/isofs/inode.c
@@ -360,12 +360,11 @@ static int parse_options(char *options, 
 	popt->check = 'u';		/* unset */
 	popt->nocompress = 0;
 	popt->blocksize = 1024;
-	popt->mode = S_IRUGO | S_IXUGO; /*
-					 * r-x for all.  The disc could
-					 * be shared with DOS machines so
-					 * virtually anything could be
-					 * a valid executable.
-					 */
+	/*
+	 * +x bit for all. The disc could be shared with DOS machine, so
+	 * virtually anything could be a valid executable.
+	 */
+	popt->mode = S_IRUGO | S_IWUSR | S_IXUGO;
 	popt->gid = 0;
 	popt->uid = 0;
 	popt->iocharset = NULL;
@@ -1235,7 +1234,7 @@ static void isofs_read_inode(struct inod
 	ei->i_file_format = isofs_file_normal;
 
 	if (de->flags[-high_sierra] & 2) {
-		inode->i_mode = S_IRUGO | S_IXUGO | S_IFDIR;
+		inode->i_mode = S_IRUGO | S_IWUSR | S_IXUGO | S_IFDIR;
 		inode->i_nlink = 1;	/*
 					 * Set to 1.  We know there are 2, but
 					 * the find utility tries to optimize
-
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