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638ca50f3b
The problem is caused by the incorrect handling of the parent inode's i_nlink count for the dentry to be RENAME_EXCHANGED. There are 3 cases to consider. Assume we want to RENAME_EXCHANGE struct dentry *a and struct dentry *b, and inode_a is pointed to by dentry_a, inode_b is pointed to by dentry_b: 1. If inode_a is a directory, but inode_b isn't, then we must decrease the i_nlink count of old_dir_i, and increase the i_nlink of new_dir_i. 2. If inode_a isn't a directory, but inode_b is a directory, then we must increase the i_nlink of old_dir_i, and decrease the i_nlink count of new_dir_i. 3. If the types of inode_a and inode_b are the same, we don't change the i_nlink for either old_dir_i or new_dir_i. Signed-off-by: Jing Qiu <aqiu0720@gmail.com> Signed-off-by: Felix Fietkau <nbd@nbd.name> |
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| base-files | ||
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| image | ||
| patches-3.18 | ||
| patches-4.4 | ||
| config-3.18 | ||
| config-4.4 | ||
| PATCHES | ||