Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

ANDROID: sdcardfs: Check for other cases on path lookup

Browse source 
This fixes a bug where the first lookup of a
file or folder created under a different view
would not be case insensitive. It will now
search through for a case insensitive match
if the initial lookup fails.

Bug:28024488
Change-Id: I4ff9ce297b9f2f9864b47540e740fd491c545229
Signed-off-by: Daniel Rosenberg <drosen@google.com>
This commit is contained in:
Daniel Rosenberg 2016-04-27 15:31:29 -07:00 committed by Amit Pundir
parent d2c1c16b33
commit 4401aac4e2
1 changed files with 22 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
fs/sdcardfs/lookup.c
View file

@ -240,6 +240,28 @@ static struct dentry *__sdcardfs_lookup(struct dentry *dentry,
/* Use vfs_path_lookup to check if the dentry exists or not */
err = vfs_path_lookup(lower_dir_dentry, lower_dir_mnt, name, 0,
&lower_path);
/* check for other cases */
if (err == -ENOENT) {
struct dentry *child;
struct dentry *match = NULL;
spin_lock(&lower_dir_dentry->d_lock);
list_for_each_entry(child, &lower_dir_dentry->d_subdirs, d_child) {
if (child && d_inode(child)) {
if (strcasecmp(child->d_name.name, name)==0) {
match = dget(child);
break;
}
}
}
spin_unlock(&lower_dir_dentry->d_lock);
if (match) {
err = vfs_path_lookup(lower_dir_dentry,
lower_dir_mnt,
match->d_name.name, 0,
&lower_path);
dput(match);
}
}
/* no error: handle positive dentries */
if (!err) {