no_llseek is gone; don't set .llseek to that - just leave it NULL instead.
Checks for "does that file have llseek(2), or should it fail with ESPIPE"
should be done by looking at FMODE_LSEEK in file->f_mode.
+
+---
+
+*mandatory*
+
+filldir_t (readdir callbacks) calling conventions have changed. Instead of
+returning 0 or -E... it returns bool now. false means "no more" (as -E... used
+to) and true - "keep going" (as 0 in old calling conventions). Rationale:
+callers never looked at specific -E... values anyway. ->iterate() and
+->iterate_shared() instance require no changes at all, all filldir_t ones in
+the tree converted.
int error;
};
-static int
+static bool
osf_filldir(struct dir_context *ctx, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
buf->error = -EINVAL; /* only used if we fail */
if (reclen > buf->count)
- return -EINVAL;
+ return false;
d_ino = ino;
if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
buf->error = -EOVERFLOW;
- return -EOVERFLOW;
+ return false;
}
if (buf->basep) {
if (put_user(offset, buf->basep))
dirent = (void __user *)dirent + reclen;
buf->dirent = dirent;
buf->count -= reclen;
- return 0;
+ return true;
Efault:
buf->error = -EFAULT;
- return -EFAULT;
+ return false;
}
SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd,
* value.
*/
inode->i_ino = atomic64_add_return(1, &dmabuf_inode);
+ flags &= O_ACCMODE | O_NONBLOCK;
file = alloc_file_pseudo(inode, dma_buf_mnt, "dmabuf",
flags, &dma_buf_fops);
if (IS_ERR(file))
goto err_alloc_file;
- file->f_flags = flags & (O_ACCMODE | O_NONBLOCK);
file->private_data = dmabuf;
file->f_path.dentry->d_fsdata = dmabuf;
static int afs_d_revalidate(struct dentry *dentry, unsigned int flags);
static int afs_d_delete(const struct dentry *dentry);
static void afs_d_iput(struct dentry *dentry, struct inode *inode);
-static int afs_lookup_one_filldir(struct dir_context *ctx, const char *name, int nlen,
+static bool afs_lookup_one_filldir(struct dir_context *ctx, const char *name, int nlen,
loff_t fpos, u64 ino, unsigned dtype);
-static int afs_lookup_filldir(struct dir_context *ctx, const char *name, int nlen,
+static bool afs_lookup_filldir(struct dir_context *ctx, const char *name, int nlen,
loff_t fpos, u64 ino, unsigned dtype);
static int afs_create(struct user_namespace *mnt_userns, struct inode *dir,
struct dentry *dentry, umode_t mode, bool excl);
* - if afs_dir_iterate_block() spots this function, it'll pass the FID
* uniquifier through dtype
*/
-static int afs_lookup_one_filldir(struct dir_context *ctx, const char *name,
+static bool afs_lookup_one_filldir(struct dir_context *ctx, const char *name,
int nlen, loff_t fpos, u64 ino, unsigned dtype)
{
struct afs_lookup_one_cookie *cookie =
if (cookie->name.len != nlen ||
memcmp(cookie->name.name, name, nlen) != 0) {
- _leave(" = 0 [no]");
- return 0;
+ _leave(" = true [keep looking]");
+ return true;
}
cookie->fid.vnode = ino;
cookie->fid.unique = dtype;
cookie->found = 1;
- _leave(" = -1 [found]");
- return -1;
+ _leave(" = false [found]");
+ return false;
}
/*
* - if afs_dir_iterate_block() spots this function, it'll pass the FID
* uniquifier through dtype
*/
-static int afs_lookup_filldir(struct dir_context *ctx, const char *name,
+static bool afs_lookup_filldir(struct dir_context *ctx, const char *name,
int nlen, loff_t fpos, u64 ino, unsigned dtype)
{
struct afs_lookup_cookie *cookie =
container_of(ctx, struct afs_lookup_cookie, ctx);
- int ret;
_enter("{%s,%u},%s,%u,,%llu,%u",
cookie->name.name, cookie->name.len, name, nlen,
cookie->fids[1].unique = dtype;
cookie->found = 1;
if (cookie->one_only)
- return -1;
+ return false;
}
- ret = cookie->nr_fids >= 50 ? -1 : 0;
- _leave(" = %d", ret);
- return ret;
+ return cookie->nr_fids < 50;
}
/*
};
/* Inspired by generic filldir in fs/readdir.c */
-static int
+static bool
ecryptfs_filldir(struct dir_context *ctx, const char *lower_name,
int lower_namelen, loff_t offset, u64 ino, unsigned int d_type)
{
container_of(ctx, struct ecryptfs_getdents_callback, ctx);
size_t name_size;
char *name;
- int rc;
+ int err;
+ bool res;
buf->filldir_called++;
- rc = ecryptfs_decode_and_decrypt_filename(&name, &name_size,
- buf->sb, lower_name,
- lower_namelen);
- if (rc) {
- if (rc != -EINVAL) {
+ err = ecryptfs_decode_and_decrypt_filename(&name, &name_size,
+ buf->sb, lower_name,
+ lower_namelen);
+ if (err) {
+ if (err != -EINVAL) {
ecryptfs_printk(KERN_DEBUG,
"%s: Error attempting to decode and decrypt filename [%s]; rc = [%d]\n",
- __func__, lower_name, rc);
- return rc;
+ __func__, lower_name, err);
+ return false;
}
/* Mask -EINVAL errors as these are most likely due a plaintext
* the "lost+found" dentry in the root directory of an Ext4
* filesystem.
*/
- return 0;
+ return true;
}
buf->caller->pos = buf->ctx.pos;
- rc = !dir_emit(buf->caller, name, name_size, ino, d_type);
+ res = dir_emit(buf->caller, name, name_size, ino, d_type);
kfree(name);
- if (!rc)
+ if (res)
buf->entries_written++;
-
- return rc;
+ return res;
}
/**
lower_file = ecryptfs_file_to_lower(file);
rc = iterate_dir(lower_file, &buf.ctx);
ctx->pos = buf.ctx.pos;
- if (rc < 0)
- goto out;
- if (buf.filldir_called && !buf.entries_written)
- goto out;
- if (rc >= 0)
- fsstack_copy_attr_atime(inode,
- file_inode(lower_file));
-out:
+ if (rc >= 0 && (buf.entries_written || !buf.filldir_called))
+ fsstack_copy_attr_atime(inode, file_inode(lower_file));
return rc;
}
* A rather strange filldir function to capture
* the name matching the specified inode number.
*/
-static int filldir_one(struct dir_context *ctx, const char *name, int len,
+static bool filldir_one(struct dir_context *ctx, const char *name, int len,
loff_t pos, u64 ino, unsigned int d_type)
{
struct getdents_callback *buf =
container_of(ctx, struct getdents_callback, ctx);
- int result = 0;
buf->sequence++;
if (buf->ino == ino && len <= NAME_MAX) {
memcpy(buf->name, name, len);
buf->name[len] = '\0';
buf->found = 1;
- result = -1;
+ return false; // no more
}
- return result;
+ return true;
}
/**
}
#define FAT_IOCTL_FILLDIR_FUNC(func, dirent_type) \
-static int func(struct dir_context *ctx, const char *name, int name_len, \
+static bool func(struct dir_context *ctx, const char *name, int name_len, \
loff_t offset, u64 ino, unsigned int d_type) \
{ \
struct fat_ioctl_filldir_callback *buf = \
struct dirent_type __user *d2 = d1 + 1; \
\
if (buf->result) \
- return -EINVAL; \
+ return false; \
buf->result++; \
\
if (name != NULL) { \
put_user(short_len, &d1->d_reclen)) \
goto efault; \
} \
- return 0; \
+ return true; \
efault: \
buf->result = -EFAULT; \
- return -EFAULT; \
+ return false; \
}
FAT_IOCTL_FILLDIR_FUNC(fat_ioctl_filldir, __fat_dirent)
}
fops_put(file->f_op);
put_pid(file->f_owner.pid);
- if ((mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
- i_readcount_dec(inode);
- if (mode & FMODE_WRITER) {
- put_write_access(inode);
- __mnt_drop_write(mnt);
- }
+ put_file_access(file);
dput(dentry);
if (unlikely(mode & FMODE_NEED_UNMOUNT))
dissolve_on_fput(mnt);
char *name;
};
-static int get_name_filldir(struct dir_context *ctx, const char *name,
+static bool get_name_filldir(struct dir_context *ctx, const char *name,
int length, loff_t offset, u64 inum,
unsigned int type)
{
container_of(ctx, struct get_name_filldir, ctx);
if (inum != gnfd->inum.no_addr)
- return 0;
+ return true;
memcpy(gnfd->name, name, length);
gnfd->name[length] = 0;
- return 1;
+ return false;
}
static int gfs2_get_name(struct dentry *parent, char *name,
extern struct file *alloc_empty_file(int, const struct cred *);
extern struct file *alloc_empty_file_noaccount(int, const struct cred *);
+static inline void put_file_access(struct file *file)
+{
+ if ((file->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ) {
+ i_readcount_dec(file->f_inode);
+ } else if (file->f_mode & FMODE_WRITER) {
+ put_write_access(file->f_inode);
+ __mnt_drop_write(file->f_path.mnt);
+ }
+}
+
/*
* super.c
*/
return 0;
}
-static int __query_dir(struct dir_context *ctx, const char *name, int namlen,
+static bool __query_dir(struct dir_context *ctx, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
struct ksmbd_readdir_data *buf;
/* dot and dotdot entries are already reserved */
if (!strcmp(".", name) || !strcmp("..", name))
- return 0;
+ return true;
if (ksmbd_share_veto_filename(priv->work->tcon->share_conf, name))
- return 0;
+ return true;
if (!match_pattern(name, namlen, priv->search_pattern))
- return 0;
+ return true;
d_info->name = name;
d_info->name_len = namlen;
rc = reserve_populate_dentry(d_info, priv->info_level);
if (rc)
- return rc;
- if (d_info->flags & SMB2_RETURN_SINGLE_ENTRY) {
+ return false;
+ if (d_info->flags & SMB2_RETURN_SINGLE_ENTRY)
d_info->out_buf_len = 0;
- return 0;
- }
- return 0;
+ return true;
}
static void restart_ctx(struct dir_context *ctx)
return err;
}
-static int __dir_empty(struct dir_context *ctx, const char *name, int namlen,
+static bool __dir_empty(struct dir_context *ctx, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
struct ksmbd_readdir_data *buf;
buf = container_of(ctx, struct ksmbd_readdir_data, ctx);
buf->dirent_count++;
- if (buf->dirent_count > 2)
- return -ENOTEMPTY;
- return 0;
+ return buf->dirent_count <= 2;
}
/**
return err;
}
-static int __caseless_lookup(struct dir_context *ctx, const char *name,
+static bool __caseless_lookup(struct dir_context *ctx, const char *name,
int namlen, loff_t offset, u64 ino,
unsigned int d_type)
{
buf = container_of(ctx, struct ksmbd_readdir_data, ctx);
if (buf->used != namlen)
- return 0;
+ return true;
if (!strncasecmp((char *)buf->private, name, namlen)) {
memcpy((char *)buf->private, name, namlen);
buf->dirent_count = 1;
- return -EEXIST;
+ return false;
}
- return 0;
+ return true;
}
/**
struct list_head names;
};
-static int
+static bool
nfsd4_build_namelist(struct dir_context *__ctx, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
struct name_list *entry;
if (namlen != HEXDIR_LEN - 1)
- return 0;
+ return true;
entry = kmalloc(sizeof(struct name_list), GFP_KERNEL);
if (entry == NULL)
- return -ENOMEM;
+ return false;
memcpy(entry->name, name, HEXDIR_LEN - 1);
entry->name[HEXDIR_LEN - 1] = '\0';
list_add(&entry->list, &ctx->names);
- return 0;
+ return true;
}
static int
int full;
};
-static int nfsd_buffered_filldir(struct dir_context *ctx, const char *name,
+static bool nfsd_buffered_filldir(struct dir_context *ctx, const char *name,
int namlen, loff_t offset, u64 ino,
unsigned int d_type)
{
reclen = ALIGN(sizeof(struct buffered_dirent) + namlen, sizeof(u64));
if (buf->used + reclen > PAGE_SIZE) {
buf->full = 1;
- return -EINVAL;
+ return false;
}
de->namlen = namlen;
memcpy(de->name, name, namlen);
buf->used += reclen;
- return 0;
+ return true;
}
static __be32 nfsd_buffered_readdir(struct file *file, struct svc_fh *fhp,
unsigned seen_other;
unsigned dx_dir;
};
-static int ocfs2_empty_dir_filldir(struct dir_context *ctx, const char *name,
+static bool ocfs2_empty_dir_filldir(struct dir_context *ctx, const char *name,
int name_len, loff_t pos, u64 ino,
unsigned type)
{
*/
if (name_len == 1 && !strncmp(".", name, 1) && pos == 0) {
p->seen_dot = 1;
- return 0;
+ return true;
}
if (name_len == 2 && !strncmp("..", name, 2) &&
p->seen_dot_dot = 1;
if (p->dx_dir && p->seen_dot)
- return 1;
+ return false;
- return 0;
+ return true;
}
p->seen_other = 1;
- return 1;
+ return false;
}
static int ocfs2_empty_dir_dx(struct inode *inode,
enum ocfs2_orphan_reco_type orphan_reco_type;
};
-static int ocfs2_orphan_filldir(struct dir_context *ctx, const char *name,
+static bool ocfs2_orphan_filldir(struct dir_context *ctx, const char *name,
int name_len, loff_t pos, u64 ino,
unsigned type)
{
struct inode *iter;
if (name_len == 1 && !strncmp(".", name, 1))
- return 0;
+ return true;
if (name_len == 2 && !strncmp("..", name, 2))
- return 0;
+ return true;
/* do not include dio entry in case of orphan scan */
if ((p->orphan_reco_type == ORPHAN_NO_NEED_TRUNCATE) &&
(!strncmp(name, OCFS2_DIO_ORPHAN_PREFIX,
OCFS2_DIO_ORPHAN_PREFIX_LEN)))
- return 0;
+ return true;
/* Skip bad inodes so that recovery can continue */
iter = ocfs2_iget(p->osb, ino,
OCFS2_FI_FLAG_ORPHAN_RECOVERY, 0);
if (IS_ERR(iter))
- return 0;
+ return true;
if (!strncmp(name, OCFS2_DIO_ORPHAN_PREFIX,
OCFS2_DIO_ORPHAN_PREFIX_LEN))
* happen concurrently with unlink/rename */
if (OCFS2_I(iter)->ip_next_orphan) {
iput(iter);
- return 0;
+ return true;
}
trace_ocfs2_orphan_filldir((unsigned long long)OCFS2_I(iter)->ip_blkno);
OCFS2_I(iter)->ip_next_orphan = p->head;
p->head = iter;
- return 0;
+ return true;
}
static int ocfs2_queue_orphans(struct ocfs2_super *osb,
return 0;
}
- if (f->f_mode & FMODE_WRITE && !special_file(inode->i_mode)) {
+ if ((f->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ) {
+ i_readcount_inc(inode);
+ } else if (f->f_mode & FMODE_WRITE && !special_file(inode->i_mode)) {
error = get_write_access(inode);
if (unlikely(error))
goto cleanup_file;
goto cleanup_all;
}
f->f_mode |= FMODE_OPENED;
- if ((f->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
- i_readcount_inc(inode);
if ((f->f_mode & FMODE_READ) &&
likely(f->f_op->read || f->f_op->read_iter))
f->f_mode |= FMODE_CAN_READ;
if (WARN_ON_ONCE(error > 0))
error = -EINVAL;
fops_put(f->f_op);
- if (f->f_mode & FMODE_WRITER) {
- put_write_access(inode);
- __mnt_drop_write(f->f_path.mnt);
- }
+ put_file_access(f);
cleanup_file:
path_put(&f->f_path);
f->f_path.mnt = NULL;
return p;
}
-static int ovl_cache_entry_add_rb(struct ovl_readdir_data *rdd,
+static bool ovl_cache_entry_add_rb(struct ovl_readdir_data *rdd,
const char *name, int len, u64 ino,
unsigned int d_type)
{
struct ovl_cache_entry *p;
if (ovl_cache_entry_find_link(name, len, &newp, &parent))
- return 0;
+ return true;
p = ovl_cache_entry_new(rdd, name, len, ino, d_type);
if (p == NULL) {
rdd->err = -ENOMEM;
- return -ENOMEM;
+ return false;
}
list_add_tail(&p->l_node, rdd->list);
rb_link_node(&p->node, parent, newp);
rb_insert_color(&p->node, rdd->root);
- return 0;
+ return true;
}
-static int ovl_fill_lowest(struct ovl_readdir_data *rdd,
+static bool ovl_fill_lowest(struct ovl_readdir_data *rdd,
const char *name, int namelen,
loff_t offset, u64 ino, unsigned int d_type)
{
list_add_tail(&p->l_node, &rdd->middle);
}
- return rdd->err;
+ return rdd->err == 0;
}
void ovl_cache_free(struct list_head *list)
}
}
-static int ovl_fill_merge(struct dir_context *ctx, const char *name,
+static bool ovl_fill_merge(struct dir_context *ctx, const char *name,
int namelen, loff_t offset, u64 ino,
unsigned int d_type)
{
goto out;
}
-static int ovl_fill_plain(struct dir_context *ctx, const char *name,
+static bool ovl_fill_plain(struct dir_context *ctx, const char *name,
int namelen, loff_t offset, u64 ino,
unsigned int d_type)
{
p = ovl_cache_entry_new(rdd, name, namelen, ino, d_type);
if (p == NULL) {
rdd->err = -ENOMEM;
- return -ENOMEM;
+ return false;
}
list_add_tail(&p->l_node, rdd->list);
- return 0;
+ return true;
}
static int ovl_dir_read_impure(struct path *path, struct list_head *list,
bool xinowarn;
};
-static int ovl_fill_real(struct dir_context *ctx, const char *name,
+static bool ovl_fill_real(struct dir_context *ctx, const char *name,
int namelen, loff_t offset, u64 ino,
unsigned int d_type)
{
inode_unlock(upper->d_inode);
}
-static int ovl_check_d_type(struct dir_context *ctx, const char *name,
+static bool ovl_check_d_type(struct dir_context *ctx, const char *name,
int namelen, loff_t offset, u64 ino,
unsigned int d_type)
{
/* Even if d_type is not supported, DT_DIR is returned for . and .. */
if (!strncmp(name, ".", namelen) || !strncmp(name, "..", namelen))
- return 0;
+ return true;
if (d_type != DT_UNKNOWN)
rdd->d_type_supported = true;
- return 0;
+ return true;
}
/*
int result;
};
-static int fillonedir(struct dir_context *ctx, const char *name, int namlen,
+static bool fillonedir(struct dir_context *ctx, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
struct readdir_callback *buf =
unsigned long d_ino;
if (buf->result)
- return -EINVAL;
+ return false;
buf->result = verify_dirent_name(name, namlen);
- if (buf->result < 0)
- return buf->result;
+ if (buf->result)
+ return false;
d_ino = ino;
if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
buf->result = -EOVERFLOW;
- return -EOVERFLOW;
+ return false;
}
buf->result++;
dirent = buf->dirent;
unsafe_put_user(namlen, &dirent->d_namlen, efault_end);
unsafe_copy_dirent_name(dirent->d_name, name, namlen, efault_end);
user_write_access_end();
- return 0;
+ return true;
efault_end:
user_write_access_end();
efault:
buf->result = -EFAULT;
- return -EFAULT;
+ return false;
}
SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
int error;
};
-static int filldir(struct dir_context *ctx, const char *name, int namlen,
+static bool filldir(struct dir_context *ctx, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
struct linux_dirent __user *dirent, *prev;
buf->error = verify_dirent_name(name, namlen);
if (unlikely(buf->error))
- return buf->error;
+ return false;
buf->error = -EINVAL; /* only used if we fail.. */
if (reclen > buf->count)
- return -EINVAL;
+ return false;
d_ino = ino;
if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
buf->error = -EOVERFLOW;
- return -EOVERFLOW;
+ return false;
}
prev_reclen = buf->prev_reclen;
if (prev_reclen && signal_pending(current))
- return -EINTR;
+ return false;
dirent = buf->current_dir;
prev = (void __user *) dirent - prev_reclen;
if (!user_write_access_begin(prev, reclen + prev_reclen))
buf->current_dir = (void __user *)dirent + reclen;
buf->prev_reclen = reclen;
buf->count -= reclen;
- return 0;
+ return true;
efault_end:
user_write_access_end();
efault:
buf->error = -EFAULT;
- return -EFAULT;
+ return false;
}
SYSCALL_DEFINE3(getdents, unsigned int, fd,
int error;
};
-static int filldir64(struct dir_context *ctx, const char *name, int namlen,
+static bool filldir64(struct dir_context *ctx, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
struct linux_dirent64 __user *dirent, *prev;
buf->error = verify_dirent_name(name, namlen);
if (unlikely(buf->error))
- return buf->error;
+ return false;
buf->error = -EINVAL; /* only used if we fail.. */
if (reclen > buf->count)
- return -EINVAL;
+ return false;
prev_reclen = buf->prev_reclen;
if (prev_reclen && signal_pending(current))
- return -EINTR;
+ return false;
dirent = buf->current_dir;
prev = (void __user *)dirent - prev_reclen;
if (!user_write_access_begin(prev, reclen + prev_reclen))
buf->prev_reclen = reclen;
buf->current_dir = (void __user *)dirent + reclen;
buf->count -= reclen;
- return 0;
+ return true;
efault_end:
user_write_access_end();
efault:
buf->error = -EFAULT;
- return -EFAULT;
+ return false;
}
SYSCALL_DEFINE3(getdents64, unsigned int, fd,
int result;
};
-static int compat_fillonedir(struct dir_context *ctx, const char *name,
+static bool compat_fillonedir(struct dir_context *ctx, const char *name,
int namlen, loff_t offset, u64 ino,
unsigned int d_type)
{
compat_ulong_t d_ino;
if (buf->result)
- return -EINVAL;
+ return false;
buf->result = verify_dirent_name(name, namlen);
- if (buf->result < 0)
- return buf->result;
+ if (buf->result)
+ return false;
d_ino = ino;
if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
buf->result = -EOVERFLOW;
- return -EOVERFLOW;
+ return false;
}
buf->result++;
dirent = buf->dirent;
unsafe_put_user(namlen, &dirent->d_namlen, efault_end);
unsafe_copy_dirent_name(dirent->d_name, name, namlen, efault_end);
user_write_access_end();
- return 0;
+ return true;
efault_end:
user_write_access_end();
efault:
buf->result = -EFAULT;
- return -EFAULT;
+ return false;
}
COMPAT_SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
int error;
};
-static int compat_filldir(struct dir_context *ctx, const char *name, int namlen,
+static bool compat_filldir(struct dir_context *ctx, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
struct compat_linux_dirent __user *dirent, *prev;
buf->error = verify_dirent_name(name, namlen);
if (unlikely(buf->error))
- return buf->error;
+ return false;
buf->error = -EINVAL; /* only used if we fail.. */
if (reclen > buf->count)
- return -EINVAL;
+ return false;
d_ino = ino;
if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
buf->error = -EOVERFLOW;
- return -EOVERFLOW;
+ return false;
}
prev_reclen = buf->prev_reclen;
if (prev_reclen && signal_pending(current))
- return -EINTR;
+ return false;
dirent = buf->current_dir;
prev = (void __user *) dirent - prev_reclen;
if (!user_write_access_begin(prev, reclen + prev_reclen))
buf->prev_reclen = reclen;
buf->current_dir = (void __user *)dirent + reclen;
buf->count -= reclen;
- return 0;
+ return true;
efault_end:
user_write_access_end();
efault:
buf->error = -EFAULT;
- return -EFAULT;
+ return false;
}
COMPAT_SYSCALL_DEFINE3(getdents, unsigned int, fd,
struct dentry *dentries[8];
};
-static int
+static bool
fill_with_dentries(struct dir_context *ctx, const char *name, int namelen,
loff_t offset, u64 ino, unsigned int d_type)
{
WARN_ON_ONCE(!inode_is_locked(d_inode(dbuf->xadir)));
if (dbuf->count == ARRAY_SIZE(dbuf->dentries))
- return -ENOSPC;
+ return false;
if (name[0] == '.' && (namelen < 2 ||
(namelen == 2 && name[1] == '.')))
- return 0;
+ return true;
dentry = lookup_one_len(name, dbuf->xadir, namelen);
if (IS_ERR(dentry)) {
dbuf->err = PTR_ERR(dentry);
- return PTR_ERR(dentry);
+ return false;
} else if (d_really_is_negative(dentry)) {
/* A directory entry exists, but no file? */
reiserfs_error(dentry->d_sb, "xattr-20003",
dentry, dbuf->xadir);
dput(dentry);
dbuf->err = -EIO;
- return -EIO;
+ return false;
}
dbuf->dentries[dbuf->count++] = dentry;
- return 0;
+ return true;
}
static void
struct dentry *dentry;
};
-static int listxattr_filler(struct dir_context *ctx, const char *name,
+static bool listxattr_filler(struct dir_context *ctx, const char *name,
int namelen, loff_t offset, u64 ino,
unsigned int d_type)
{
name);
if (!handler /* Unsupported xattr name */ ||
(handler->list && !handler->list(b->dentry)))
- return 0;
+ return true;
size = namelen + 1;
if (b->buf) {
if (b->pos + size > b->size) {
b->pos = -ERANGE;
- return -ERANGE;
+ return false;
}
memcpy(b->buf + b->pos, name, namelen);
b->buf[b->pos + namelen] = 0;
}
b->pos += size;
}
- return 0;
+ return true;
}
/*
* we check the inode number to make sure it's sane, then we check that
* we can look up this filename. Finally, we check the ftype.
*/
-STATIC int
+STATIC bool
xchk_dir_actor(
struct dir_context *dir_iter,
const char *name,
xfs_dir2_dataptr_to_db(mp->m_dir_geo, pos));
if (xchk_should_terminate(sdc->sc, &error))
- return error;
+ return !error;
/* Does this inode number make sense? */
if (!xfs_verify_dir_ino(mp, ino)) {
* and return zero to xchk_directory.
*/
if (error == 0 && sdc->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
- return -EFSCORRUPTED;
- return error;
+ return false;
+ return !error;
}
/* Scrub a directory btree record. */
};
/* Look for a single entry in a directory pointing to an inode. */
-STATIC int
+STATIC bool
xchk_parent_actor(
struct dir_context *dc,
const char *name,
if (xchk_should_terminate(spc->sc, &error))
spc->cancelled = true;
- return error;
+ return !error;
}
/* Count the number of dentries in the parent dir that point to this inode. */
* the kernel specify what kind of dirent layout it wants to have.
* This allows the kernel to read directories into kernel space or
* to have different dirent layouts depending on the binary type.
+ * Return 'true' to keep going and 'false' if there are no more entries.
*/
struct dir_context;
-typedef int (*filldir_t)(struct dir_context *, const char *, int, loff_t, u64,
+typedef bool (*filldir_t)(struct dir_context *, const char *, int, loff_t, u64,
unsigned);
struct dir_context {
const char *name, int namelen,
u64 ino, unsigned type)
{
- return ctx->actor(ctx, name, namelen, ctx->pos, ino, type) == 0;
+ return ctx->actor(ctx, name, namelen, ctx->pos, ino, type);
}
static inline bool dir_emit_dot(struct file *file, struct dir_context *ctx)
{
return ctx->actor(ctx, ".", 1, ctx->pos,
- file->f_path.dentry->d_inode->i_ino, DT_DIR) == 0;
+ file->f_path.dentry->d_inode->i_ino, DT_DIR);
}
static inline bool dir_emit_dotdot(struct file *file, struct dir_context *ctx)
{
return ctx->actor(ctx, "..", 2, ctx->pos,
- parent_ino(file->f_path.dentry), DT_DIR) == 0;
+ parent_ino(file->f_path.dentry), DT_DIR);
}
static inline bool dir_emit_dots(struct file *file, struct dir_context *ctx)
{
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