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Code Issues Releases Wiki Activity

删除文件夹时回收dentry缓存

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This commit is contained in:
fslongjin
2022-09-13 16:17:35 +08:00
parent 9f2b080cda
commit 26eebaf03a
10 changed files with 132 additions and 63 deletions
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18
kernel/filesystem/fat32/fat32.c
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@ -287,8 +287,7 @@ struct vfs_dir_entry_t *fat32_lookup(struct vfs_index_node_t *parent_inode, stru
}
}
find_lookup_success:; // 找到目标dentry
struct vfs_index_node_t *p = (struct vfs_index_node_t *)kmalloc(sizeof(struct vfs_index_node_t), 0);
memset(p, 0, sizeof(struct vfs_index_node_t));
struct vfs_index_node_t *p = vfs_alloc_inode();
p->file_size = tmp_dEntry->DIR_FileSize;
// 计算文件占用的扇区数, 由于最小存储单位是簇，因此需要按照簇的大小来对齐扇区
@ -299,8 +298,7 @@ find_lookup_success:; // 找到目标dentry
p->inode_ops = &fat32_inode_ops;
// 为inode的与文件系统相关的信息结构体分配空间
p->private_inode_info = (void *)kmalloc(sizeof(fat32_inode_info_t), 0);
memset(p->private_inode_info, 0, sizeof(fat32_inode_info_t));
p->private_inode_info = (void *)kzalloc(sizeof(fat32_inode_info_t), 0);
finode = (fat32_inode_info_t *)p->private_inode_info;
finode->first_clus = ((tmp_dEntry->DIR_FstClusHI << 16) | tmp_dEntry->DIR_FstClusLO) & 0x0fffffff;
@ -387,8 +385,7 @@ struct vfs_superblock_t *fat32_read_superblock(struct block_device *blk)
sb_ptr->root->name_length = 1;
// 为root目录项分配index node
sb_ptr->root->dir_inode = (struct vfs_index_node_t *)kmalloc(sizeof(struct vfs_index_node_t), 0);
memset(sb_ptr->root->dir_inode, 0, sizeof(struct vfs_index_node_t));
sb_ptr->root->dir_inode = vfs_alloc_inode();
sb_ptr->root->dir_inode->inode_ops = &fat32_inode_ops;
sb_ptr->root->dir_inode->file_ops = &fat32_file_ops;
sb_ptr->root->dir_inode->file_size = 0;
@ -819,13 +816,11 @@ long fat32_create(struct vfs_index_node_t *parent_inode, struct vfs_dir_entry_t
if (dest_dEntry->dir_inode != NULL)
return -EEXIST;
struct vfs_index_node_t *inode = (struct vfs_index_node_t *)kmalloc(sizeof(struct vfs_index_node_t), 0);
memset((void *)inode, 0, sizeof(struct vfs_index_node_t));
struct vfs_index_node_t *inode = vfs_alloc_inode();
dest_dEntry->dir_inode = inode;
dest_dEntry->dir_ops = &fat32_dEntry_ops;
struct fat32_inode_info_t *finode = (struct fat32_inode_info_t *)kmalloc(sizeof(struct fat32_inode_info_t), 0);
memset((void *)finode, 0, sizeof(struct fat32_inode_info_t));
struct fat32_inode_info_t *finode = (struct fat32_inode_info_t *)kzalloc(sizeof(struct fat32_inode_info_t), 0);
inode->attribute = VFS_IF_FILE;
inode->file_ops = &fat32_file_ops;
inode->file_size = 0;
@ -931,8 +926,7 @@ int64_t fat32_mkdir(struct vfs_index_node_t *parent_inode, struct vfs_dir_entry_
struct fat32_Directory_t *empty_fat32_dentry = fat32_find_empty_dentry(parent_inode, cnt_longname + 1, 0, &tmp_dentry_sector, &tmp_parent_dentry_clus, &tmp_dentry_clus_buf_addr);
// ====== 初始化inode =======
struct vfs_index_node_t *inode = (struct vfs_index_node_t *)kmalloc(sizeof(struct vfs_index_node_t), 0);
memset(inode, 0, sizeof(struct vfs_index_node_t));
struct vfs_index_node_t *inode = vfs_alloc_inode();
inode->attribute = VFS_IF_DIR;
inode->blocks = fsbi->sec_per_clus;
inode->file_ops = &fat32_file_ops;