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Diffstat (limited to 'fs/hfsplus/catalog.c')
-rw-r--r--fs/hfsplus/catalog.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/fs/hfsplus/catalog.c b/fs/hfsplus/catalog.c
index 968ce411db53..32602c667b4a 100644
--- a/fs/hfsplus/catalog.c
+++ b/fs/hfsplus/catalog.c
@@ -103,6 +103,8 @@ static int hfsplus_cat_build_record(hfsplus_cat_entry *entry,
folder = &entry->folder;
memset(folder, 0, sizeof(*folder));
folder->type = cpu_to_be16(HFSPLUS_FOLDER);
+ if (test_bit(HFSPLUS_SB_HFSX, &sbi->flags))
+ folder->flags |= cpu_to_be16(HFSPLUS_HAS_FOLDER_COUNT);
folder->id = cpu_to_be32(inode->i_ino);
HFSPLUS_I(inode)->create_date =
folder->create_date =
@@ -203,6 +205,36 @@ int hfsplus_find_cat(struct super_block *sb, u32 cnid,
return hfs_brec_find(fd, hfs_find_rec_by_key);
}
+static void hfsplus_subfolders_inc(struct inode *dir)
+{
+ struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb);
+
+ if (test_bit(HFSPLUS_SB_HFSX, &sbi->flags)) {
+ /*
+ * Increment subfolder count. Note, the value is only meaningful
+ * for folders with HFSPLUS_HAS_FOLDER_COUNT flag set.
+ */
+ HFSPLUS_I(dir)->subfolders++;
+ }
+}
+
+static void hfsplus_subfolders_dec(struct inode *dir)
+{
+ struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb);
+
+ if (test_bit(HFSPLUS_SB_HFSX, &sbi->flags)) {
+ /*
+ * Decrement subfolder count. Note, the value is only meaningful
+ * for folders with HFSPLUS_HAS_FOLDER_COUNT flag set.
+ *
+ * Check for zero. Some subfolders may have been created
+ * by an implementation ignorant of this counter.
+ */
+ if (HFSPLUS_I(dir)->subfolders)
+ HFSPLUS_I(dir)->subfolders--;
+ }
+}
+
int hfsplus_create_cat(u32 cnid, struct inode *dir,
struct qstr *str, struct inode *inode)
{
@@ -247,6 +279,8 @@ int hfsplus_create_cat(u32 cnid, struct inode *dir,
goto err1;
dir->i_size++;
+ if (S_ISDIR(inode->i_mode))
+ hfsplus_subfolders_inc(dir);
dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
hfsplus_mark_inode_dirty(dir, HFSPLUS_I_CAT_DIRTY);
@@ -336,6 +370,8 @@ int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str)
goto out;
dir->i_size--;
+ if (type == HFSPLUS_FOLDER)
+ hfsplus_subfolders_dec(dir);
dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
hfsplus_mark_inode_dirty(dir, HFSPLUS_I_CAT_DIRTY);
@@ -380,6 +416,7 @@ int hfsplus_rename_cat(u32 cnid,
hfs_bnode_read(src_fd.bnode, &entry, src_fd.entryoffset,
src_fd.entrylength);
+ type = be16_to_cpu(entry.type);
/* create new dir entry with the data from the old entry */
hfsplus_cat_build_key(sb, dst_fd.search_key, dst_dir->i_ino, dst_name);
@@ -394,6 +431,8 @@ int hfsplus_rename_cat(u32 cnid,
if (err)
goto out;
dst_dir->i_size++;
+ if (type == HFSPLUS_FOLDER)
+ hfsplus_subfolders_inc(dst_dir);
dst_dir->i_mtime = dst_dir->i_ctime = CURRENT_TIME_SEC;
/* finally remove the old entry */
@@ -405,6 +444,8 @@ int hfsplus_rename_cat(u32 cnid,
if (err)
goto out;
src_dir->i_size--;
+ if (type == HFSPLUS_FOLDER)
+ hfsplus_subfolders_dec(src_dir);
src_dir->i_mtime = src_dir->i_ctime = CURRENT_TIME_SEC;
/* remove old thread entry */