Hi Namjae Jeon,
The issue can be reproduced by
Step 1: create and rename the file as:
dir=${mount_point}/dir
rm -fr ${mount_point}/*
mkdir ${dir}
dirsize=$(du -b ${dir} | awk '{print $1}')
for ((i = 1; i <= dirsize / (32 * 3); i++)); do
touch ${dir}/file-$i
done
mkdir ${mount_point}/dir2
mv ${dir}/file-1 ${dir}/long-file-name-1234567890-1234567890
> > (1) The renamed file can not be written.
> >
> > [10768.175172] exFAT-fs (sda1): error, failed to bmap (inode :
> > 7afd50e4 iblock : 0, err : -5)
> > [10768.184285] exFAT-fs (sda1): Filesystem has been set read-only
> > ash: write error: Input/output error
> Could you please elaborate how to reproduce it ?
Step 2: Write data to the renamed file, such as:
echo xxx > ${dir}/file-1 ${dir}/long-file-name-1234567890-1234567890
> > (2) Some dentries of the renamed file/directory are not set
> > to deleted after removing the file/directory.
After applying the debug patch,
```diff
--- a/fs/exfat/namei.c
+++ b/fs/exfat/namei.c
@@ -824,6 +824,11 @@ static int exfat_unlink(struct inode *dir, struct dentry *dentry)
num_entries++;
brelse(bh);
+ if (num_entries != ep->dentry.file.num_ext + 1) {
+ pr_err("file has %d entries\n", ep->dentry.file.num_ext + 1);
+ pr_err("But only set %d entries to deleted\n", num_entries);
+ }
+
exfat_set_volume_dirty(sb);
/* update the directory entry */
if (exfat_remove_entries(dir, &cdir, entry, 0, num_entries)) {
```
We can find that 4 entries are not set to delete.
[ 388.140802] file has 5 entries
[ 388.144200] But only set 1 entries to deleted
