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Diffstat (limited to 'fs/hfs/dir.c')
-rw-r--r--fs/hfs/dir.c75
1 files changed, 39 insertions, 36 deletions
diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c
index 62fc14ea4b73..145566851e7a 100644
--- a/fs/hfs/dir.c
+++ b/fs/hfs/dir.c
@@ -18,14 +18,16 @@
* hfs_lookup()
*/
static struct dentry *hfs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
+ unsigned int flags)
{
hfs_cat_rec rec;
struct hfs_find_data fd;
struct inode *inode = NULL;
int res;
- hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ if (res)
+ return ERR_PTR(res);
hfs_cat_build_key(dir->i_sb, fd.search_key, dir->i_ino, &dentry->d_name);
res = hfs_brec_read(&fd, &rec, sizeof(rec));
if (res) {
@@ -49,9 +51,9 @@ done:
/*
* hfs_readdir
*/
-static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+static int hfs_readdir(struct file *file, struct dir_context *ctx)
{
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(file);
struct super_block *sb = inode->i_sb;
int len, err;
char strbuf[HFS_MAX_NAMELEN];
@@ -60,23 +62,24 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
struct hfs_readdir_data *rd;
u16 type;
- if (filp->f_pos >= inode->i_size)
+ if (ctx->pos >= inode->i_size)
return 0;
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ err = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (err)
+ return err;
hfs_cat_build_key(sb, fd.search_key, inode->i_ino, NULL);
err = hfs_brec_find(&fd);
if (err)
goto out;
- switch ((u32)filp->f_pos) {
- case 0:
+ if (ctx->pos == 0) {
/* This is completely artificial... */
- if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR))
+ if (!dir_emit_dot(file, ctx))
goto out;
- filp->f_pos++;
- /* fall through */
- case 1:
+ ctx->pos = 1;
+ }
+ if (ctx->pos == 1) {
if (fd.entrylength > sizeof(entry) || fd.entrylength < 0) {
err = -EIO;
goto out;
@@ -84,31 +87,29 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, fd.entrylength);
if (entry.type != HFS_CDR_THD) {
- printk(KERN_ERR "hfs: bad catalog folder thread\n");
+ pr_err("bad catalog folder thread\n");
err = -EIO;
goto out;
}
//if (fd.entrylength < HFS_MIN_THREAD_SZ) {
- // printk(KERN_ERR "hfs: truncated catalog thread\n");
+ // pr_err("truncated catalog thread\n");
// err = -EIO;
// goto out;
//}
- if (filldir(dirent, "..", 2, 1,
+ if (!dir_emit(ctx, "..", 2,
be32_to_cpu(entry.thread.ParID), DT_DIR))
goto out;
- filp->f_pos++;
- /* fall through */
- default:
- if (filp->f_pos >= inode->i_size)
- goto out;
- err = hfs_brec_goto(&fd, filp->f_pos - 1);
- if (err)
- goto out;
+ ctx->pos = 2;
}
+ if (ctx->pos >= inode->i_size)
+ goto out;
+ err = hfs_brec_goto(&fd, ctx->pos - 1);
+ if (err)
+ goto out;
for (;;) {
if (be32_to_cpu(fd.key->cat.ParID) != inode->i_ino) {
- printk(KERN_ERR "hfs: walked past end of dir\n");
+ pr_err("walked past end of dir\n");
err = -EIO;
goto out;
}
@@ -123,43 +124,43 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
len = hfs_mac2asc(sb, strbuf, &fd.key->cat.CName);
if (type == HFS_CDR_DIR) {
if (fd.entrylength < sizeof(struct hfs_cat_dir)) {
- printk(KERN_ERR "hfs: small dir entry\n");
+ pr_err("small dir entry\n");
err = -EIO;
goto out;
}
- if (filldir(dirent, strbuf, len, filp->f_pos,
+ if (!dir_emit(ctx, strbuf, len,
be32_to_cpu(entry.dir.DirID), DT_DIR))
break;
} else if (type == HFS_CDR_FIL) {
if (fd.entrylength < sizeof(struct hfs_cat_file)) {
- printk(KERN_ERR "hfs: small file entry\n");
+ pr_err("small file entry\n");
err = -EIO;
goto out;
}
- if (filldir(dirent, strbuf, len, filp->f_pos,
+ if (!dir_emit(ctx, strbuf, len,
be32_to_cpu(entry.file.FlNum), DT_REG))
break;
} else {
- printk(KERN_ERR "hfs: bad catalog entry type %d\n", type);
+ pr_err("bad catalog entry type %d\n", type);
err = -EIO;
goto out;
}
- filp->f_pos++;
- if (filp->f_pos >= inode->i_size)
+ ctx->pos++;
+ if (ctx->pos >= inode->i_size)
goto out;
err = hfs_brec_goto(&fd, 1);
if (err)
goto out;
}
- rd = filp->private_data;
+ rd = file->private_data;
if (!rd) {
rd = kmalloc(sizeof(struct hfs_readdir_data), GFP_KERNEL);
if (!rd) {
err = -ENOMEM;
goto out;
}
- filp->private_data = rd;
- rd->file = filp;
+ file->private_data = rd;
+ rd->file = file;
list_add(&rd->list, &HFS_I(inode)->open_dir_list);
}
memcpy(&rd->key, &fd.key, sizeof(struct hfs_cat_key));
@@ -172,7 +173,9 @@ static int hfs_dir_release(struct inode *inode, struct file *file)
{
struct hfs_readdir_data *rd = file->private_data;
if (rd) {
+ mutex_lock(&inode->i_mutex);
list_del(&rd->list);
+ mutex_unlock(&inode->i_mutex);
kfree(rd);
}
return 0;
@@ -187,7 +190,7 @@ static int hfs_dir_release(struct inode *inode, struct file *file)
* the directory and the name (and its length) of the new file.
*/
static int hfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
- struct nameidata *nd)
+ bool excl)
{
struct inode *inode;
int res;
@@ -300,7 +303,7 @@ static int hfs_rename(struct inode *old_dir, struct dentry *old_dentry,
const struct file_operations hfs_dir_operations = {
.read = generic_read_dir,
- .readdir = hfs_readdir,
+ .iterate = hfs_readdir,
.llseek = generic_file_llseek,
.release = hfs_dir_release,
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-17 12:53:47 +0000