This looks a lot better than the first iteration; thank you for gettingThansk a lot for your suggestions.
it to this point. One last thing, I hope...
On Thu, 2018-03-29 at 20:00 +0800, Yufen Yu wrote:
--- a/fs/jffs2/jffs2_fs_i.hYou've made JFFS2_INVALID_LIMIT 64, which is reasonable enough
+++ b/fs/jffs2/jffs2_fs_i.h
@@ -42,6 +42,12 @@ struct jffs2_inode_info {
/* Directory entries */
struct jffs2_full_dirent *dents;
+ /* Directory open refcount */
+ atomic_t nr_dir_opening;
+
+ /* obsolete dirent count in the list of 'dents' */
+ unsigned int obsolete_count;
+
/* The target path if this is the inode of a symlink */
unsigned char *target;
(although it's a bit of a weird name and possibly wants to be more
specific â invalid *what*?).
You are right, thanks. But, obsolete_count may be large. So, I apply to use uint16_t and
So the maximum interesting value of ->obsolete_count is 64. Which means
it might as well be a uint8_t and sit in the padding after the
'usercompr' field.
It might be useful to look at putting the mutually exclusive fields in
struct jffs2_inode_info into a union, and then we don't need the
additional space of the atomic_t either; we'll never need that *and*
the fragtree at the same time... will we?