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C++ AFFS_SB函数代码示例

本文整理汇总了C++中AFFS_SB函数的典型用法代码示例。如果您正苦于以下问题：C++ AFFS_SB函数的具体用法？C++ AFFS_SB怎么用？C++ AFFS_SB使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了AFFS_SB函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: affs_notify_change

int
affs_notify_change(struct dentry *dentry, struct iattr *attr)
{
	struct inode *inode = dentry->d_inode;
	int error;

	pr_debug("AFFS: notify_change(%lu,0x%x)\n",inode->i_ino,attr->ia_valid);

	error = inode_change_ok(inode,attr);
	if (error)
		goto out;

	if (((attr->ia_valid & ATTR_UID) && (AFFS_SB(inode->i_sb)->s_flags & SF_SETUID)) ||
	    ((attr->ia_valid & ATTR_GID) && (AFFS_SB(inode->i_sb)->s_flags & SF_SETGID)) ||
	    ((attr->ia_valid & ATTR_MODE) &&
	     (AFFS_SB(inode->i_sb)->s_flags & (SF_SETMODE | SF_IMMUTABLE)))) {
		if (!(AFFS_SB(inode->i_sb)->s_flags & SF_QUIET))
			error = -EPERM;
		goto out;
	}

	error = inode_setattr(inode, attr);
	if (!error && (attr->ia_valid & ATTR_MODE))
		mode_to_prot(inode);
out:
	return error;
}
开发者ID:FelipeFernandes1988，项目名称:Alice-1121-Modem，代码行数:27，代码来源:inode.c

示例2: affs_symlink_readpage

static int affs_symlink_readpage(struct file *file, struct page *page)
{
	struct buffer_head *bh;
	struct inode *inode = page->mapping->host;
	char *link = kmap(page);
	struct slink_front *lf;
	int err;
	int			 i, j;
	char			 c;
	char			 lc;
	char			*pf;

	pr_debug("AFFS: follow_link(ino=%lu)\n",inode->i_ino);

	err = -EIO;
	bh = affs_bread(inode->i_sb, inode->i_ino);
	if (!bh)
		goto fail;
	i  = 0;
	j  = 0;
	lf = (struct slink_front *)bh->b_data;
	lc = 0;
	pf = AFFS_SB(inode->i_sb)->s_prefix ? AFFS_SB(inode->i_sb)->s_prefix : "/";

	if (strchr(lf->symname,':')) {	/* Handle assign or volume name */
		while (i < 1023 && (c = pf[i]))
			link[i++] = c;
		while (i < 1023 && lf->symname[j] != ':')
			link[i++] = lf->symname[j++];
		if (i < 1023)
			link[i++] = '/';
		j++;
		lc = '/';
	}
	while (i < 1023 && (c = lf->symname[j])) {
		if (c == '/' && lc == '/' && i < 1020) {	/* parent dir */
			link[i++] = '.';
			link[i++] = '.';
		}
		link[i++] = c;
		lc = c;
		j++;
	}
	link[i] = '\0';
	affs_brelse(bh);
	SetPageUptodate(page);
	kunmap(page);
	unlock_page(page);
	return 0;
fail:
	SetPageError(page);
	kunmap(page);
	unlock_page(page);
	return err;
}
开发者ID:johnny，项目名称:CobraDroidBeta，代码行数:55，代码来源:symlink.c

示例3: affs_write_inode

int
affs_write_inode(struct inode *inode, struct writeback_control *wbc)
{
	struct super_block	*sb = inode->i_sb;
	struct buffer_head	*bh;
	struct affs_tail	*tail;
	uid_t			 uid;
	gid_t			 gid;

	pr_debug("write_inode(%lu)\n", inode->i_ino);

	if (!inode->i_nlink)
		// possibly free block
		return 0;
	bh = affs_bread(sb, inode->i_ino);
	if (!bh) {
		affs_error(sb,"write_inode","Cannot read block %lu",inode->i_ino);
		return -EIO;
	}
	tail = AFFS_TAIL(sb, bh);
	if (tail->stype == cpu_to_be32(ST_ROOT)) {
		affs_secs_to_datestamp(inode->i_mtime.tv_sec,
				       &AFFS_ROOT_TAIL(sb, bh)->root_change);
	} else {
		tail->protect = cpu_to_be32(AFFS_I(inode)->i_protect);
		tail->size = cpu_to_be32(inode->i_size);
		affs_secs_to_datestamp(inode->i_mtime.tv_sec, &tail->change);
		if (!(inode->i_ino == AFFS_SB(sb)->s_root_block)) {
			uid = i_uid_read(inode);
			gid = i_gid_read(inode);
			if (affs_test_opt(AFFS_SB(sb)->s_flags, SF_MUFS)) {
				if (uid == 0 || uid == 0xFFFF)
					uid = uid ^ ~0;
				if (gid == 0 || gid == 0xFFFF)
					gid = gid ^ ~0;
			}
			if (!affs_test_opt(AFFS_SB(sb)->s_flags, SF_SETUID))
				tail->uid = cpu_to_be16(uid);
			if (!affs_test_opt(AFFS_SB(sb)->s_flags, SF_SETGID))
				tail->gid = cpu_to_be16(gid);
		}
	}
	affs_fix_checksum(sb, bh);
	mark_buffer_dirty_inode(bh, inode);
	affs_brelse(bh);
	affs_free_prealloc(inode);
	return 0;
}
开发者ID:BWhitten，项目名称:linux-stable，代码行数:48，代码来源:inode.c

示例4: affs_statfs

static int
affs_statfs(struct super_block *sb, struct kstatfs *buf)
{
	int		 free;

	pr_debug("AFFS: statfs() partsize=%d, reserved=%d\n",AFFS_SB(sb)->s_partition_size,
	     AFFS_SB(sb)->s_reserved);

	free          = affs_count_free_blocks(sb);
	buf->f_type    = AFFS_SUPER_MAGIC;
	buf->f_bsize   = sb->s_blocksize;
	buf->f_blocks  = AFFS_SB(sb)->s_partition_size - AFFS_SB(sb)->s_reserved;
	buf->f_bfree   = free;
	buf->f_bavail  = free;
	return 0;
}
开发者ID:BackupTheBerlios，项目名称:arp2-svn，代码行数:16，代码来源:super.c

示例5: affs_lookup

struct dentry *
affs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
	struct super_block *sb = dir->i_sb;
	struct buffer_head *bh;
	struct inode *inode = NULL;

	pr_debug("AFFS: lookup(\"%.*s\")\n",(int)dentry->d_name.len,dentry->d_name.name);

	affs_lock_dir(dir);
	bh = affs_find_entry(dir, dentry);
	affs_unlock_dir(dir);
	if (IS_ERR(bh))
		return ERR_CAST(bh);
	if (bh) {
		u32 ino = bh->b_blocknr;

		/* store the real header ino in d_fsdata for faster lookups */
		dentry->d_fsdata = (void *)(long)ino;
		switch (be32_to_cpu(AFFS_TAIL(sb, bh)->stype)) {
		//link to dirs disabled
		//case ST_LINKDIR:
		case ST_LINKFILE:
			ino = be32_to_cpu(AFFS_TAIL(sb, bh)->original);
		}
		affs_brelse(bh);
		inode = affs_iget(sb, ino);
		if (IS_ERR(inode))
			return ERR_PTR(PTR_ERR(inode));
	}
	dentry->d_op = AFFS_SB(sb)->s_flags & SF_INTL ? &affs_intl_dentry_operations : &affs_dentry_operations;
	d_add(dentry, inode);
	return NULL;
}
开发者ID:mikuhatsune001，项目名称:linux2.6.32，代码行数:34，代码来源:namei.c

示例6: affs_create

int
affs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool excl)
{
	struct super_block *sb = dir->i_sb;
	struct inode	*inode;
	int		 error;

	pr_debug("%s(%lu,\"%pd\",0%ho)\n",
		 __func__, dir->i_ino, dentry, mode);

	inode = affs_new_inode(dir);
	if (!inode)
		return -ENOSPC;

	inode->i_mode = mode;
	mode_to_prot(inode);
	mark_inode_dirty(inode);

	inode->i_op = &affs_file_inode_operations;
	inode->i_fop = &affs_file_operations;
	inode->i_mapping->a_ops = (AFFS_SB(sb)->s_flags & SF_OFS) ? &affs_aops_ofs : &affs_aops;
	error = affs_add_entry(dir, inode, dentry, ST_FILE);
	if (error) {
		clear_nlink(inode);
		iput(inode);
		return error;
	}
	return 0;
}
开发者ID:Abioy，项目名称:kasan，代码行数:29，代码来源:namei.c

示例7: affs_create

int
affs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd)
{
	struct super_block *sb = dir->i_sb;
	struct inode	*inode;
	int		 error;

	pr_debug("AFFS: create(%lu,\"%.*s\",0%o)\n",dir->i_ino,(int)dentry->d_name.len,
		 dentry->d_name.name,mode);

	inode = affs_new_inode(dir);
	if (!inode)
		return -ENOSPC;

	inode->i_mode = mode;
	mode_to_prot(inode);
	mark_inode_dirty(inode);

	inode->i_op = &affs_file_inode_operations;
	inode->i_fop = &affs_file_operations;
	inode->i_mapping->a_ops = (AFFS_SB(sb)->s_flags & SF_OFS) ? &affs_aops_ofs : &affs_aops;
	error = affs_add_entry(dir, inode, dentry, ST_FILE);
	if (error) {
		inode->i_nlink = 0;
		iput(inode);
		return error;
	}
	return 0;
}
开发者ID:mikuhatsune001，项目名称:linux2.6.32，代码行数:29，代码来源:namei.c

示例8: affs_remount

static int
affs_remount(struct super_block *sb, int *flags, char *data)
{
	struct affs_sb_info	*sbi = AFFS_SB(sb);
	int			 blocksize;
	uid_t			 uid;
	gid_t			 gid;
	int			 mode;
	int			 reserved;
	int			 root_block;
	unsigned long		 mount_flags;
	int			 res = 0;
	char			*new_opts = kstrdup(data, GFP_KERNEL);
	char			 volume[32];
	char			*prefix = NULL;

	pr_debug("AFFS: remount(flags=0x%x,opts=\"%s\")\n",*flags,data);

	*flags |= MS_NODIRATIME;

	memcpy(volume, sbi->s_volume, 32);
	if (!parse_options(data, &uid, &gid, &mode, &reserved, &root_block,
			   &blocksize, &prefix, volume,
			   &mount_flags)) {
		kfree(prefix);
		kfree(new_opts);
		return -EINVAL;
	}
	lock_kernel();
	replace_mount_options(sb, new_opts);

	sbi->s_flags = mount_flags;
	sbi->s_mode  = mode;
	sbi->s_uid   = uid;
	sbi->s_gid   = gid;
	/* protect against readers */
	spin_lock(&sbi->symlink_lock);
	if (prefix) {
		kfree(sbi->s_prefix);
		sbi->s_prefix = prefix;
	}
	memcpy(sbi->s_volume, volume, 32);
	spin_unlock(&sbi->symlink_lock);

	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
		unlock_kernel();
		return 0;
	}
	if (*flags & MS_RDONLY) {
		sb->s_dirt = 1;
		while (sb->s_dirt)
			affs_write_super(sb);
		affs_free_bitmap(sb);
	} else
		res = affs_init_bitmap(sb, flags);

	unlock_kernel();
	return res;
}
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:59，代码来源:super.c

示例9: affs_put_super

static void
affs_put_super(struct super_block *sb)
{
	struct affs_sb_info *sbi = AFFS_SB(sb);
	pr_debug("AFFS: put_super()\n");

	cancel_delayed_work_sync(&sbi->sb_work);
}
开发者ID:908626950，项目名称:linux，代码行数:8，代码来源:super.c

示例10: affs_notify_change

int
affs_notify_change(struct dentry *dentry, struct iattr *attr)
{
	struct inode *inode = d_inode(dentry);
	int error;

	pr_debug("notify_change(%lu,0x%x)\n", inode->i_ino, attr->ia_valid);

	error = setattr_prepare(dentry, attr);
	if (error)
		goto out;

	if (((attr->ia_valid & ATTR_UID) &&
	      affs_test_opt(AFFS_SB(inode->i_sb)->s_flags, SF_SETUID)) ||
	    ((attr->ia_valid & ATTR_GID) &&
	      affs_test_opt(AFFS_SB(inode->i_sb)->s_flags, SF_SETGID)) ||
	    ((attr->ia_valid & ATTR_MODE) &&
	     (AFFS_SB(inode->i_sb)->s_flags &
	      (AFFS_MOUNT_SF_SETMODE | AFFS_MOUNT_SF_IMMUTABLE)))) {
		if (!affs_test_opt(AFFS_SB(inode->i_sb)->s_flags, SF_QUIET))
			error = -EPERM;
		goto out;
	}

	if ((attr->ia_valid & ATTR_SIZE) &&
	    attr->ia_size != i_size_read(inode)) {
		error = inode_newsize_ok(inode, attr->ia_size);
		if (error)
			return error;

		truncate_setsize(inode, attr->ia_size);
		affs_truncate(inode);
	}

	setattr_copy(inode, attr);
	mark_inode_dirty(inode);

	if (attr->ia_valid & ATTR_MODE)
		affs_mode_to_prot(inode);
out:
	return error;
}
开发者ID:BWhitten，项目名称:linux-stable，代码行数:42，代码来源:inode.c

示例11: affs_kill_sb

static void affs_kill_sb(struct super_block *sb)
{
	struct affs_sb_info *sbi = AFFS_SB(sb);
	kill_block_super(sb);
	if (sbi) {
		affs_free_bitmap(sb);
		affs_brelse(sbi->s_root_bh);
		kfree(sbi->s_prefix);
		kfree(sbi);
	}
}
开发者ID:908626950，项目名称:linux，代码行数:11，代码来源:super.c

示例12: affs_hash_name

int
affs_hash_name(struct super_block *sb, const u8 *name, unsigned int len)
{
	toupper_t toupper = affs_get_toupper(sb);
	int hash;

	hash = len = min(len, 30u);
	for (; len > 0; len--)
		hash = (hash * 13 + toupper(*name++)) & 0x7ff;

	return hash % AFFS_SB(sb)->s_hashsize;
}
开发者ID:mikuhatsune001，项目名称:linux2.6.32，代码行数:12，代码来源:namei.c

示例13: affs_statfs

static int
affs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
	struct super_block *sb = dentry->d_sb;
	int		 free;
	u64		 id = huge_encode_dev(sb->s_bdev->bd_dev);

	pr_debug("AFFS: statfs() partsize=%d, reserved=%d\n",AFFS_SB(sb)->s_partition_size,
	     AFFS_SB(sb)->s_reserved);

	free          = affs_count_free_blocks(sb);
	buf->f_type    = AFFS_SUPER_MAGIC;
	buf->f_bsize   = sb->s_blocksize;
	buf->f_blocks  = AFFS_SB(sb)->s_partition_size - AFFS_SB(sb)->s_reserved;
	buf->f_bfree   = free;
	buf->f_bavail  = free;
	buf->f_fsid.val[0] = (u32)id;
	buf->f_fsid.val[1] = (u32)(id >> 32);
	buf->f_namelen = 30;
	return 0;
}
开发者ID:Adjustxx，项目名称:Savaged-Zen，代码行数:21，代码来源:super.c

示例14: affs_commit_super

static void
affs_commit_super(struct super_block *sb, int clean)
{
	struct affs_sb_info *sbi = AFFS_SB(sb);
	struct buffer_head *bh = sbi->s_root_bh;
	struct affs_root_tail *tail = AFFS_ROOT_TAIL(sb, bh);

	tail->bm_flag = cpu_to_be32(clean);
	secs_to_datestamp(get_seconds(), &tail->disk_change);
	affs_fix_checksum(sb, bh);
	mark_buffer_dirty(bh);
}
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:12，代码来源:super.c

示例15: affs_put_super

static void
affs_put_super(struct super_block *sb)
{
	struct affs_sb_info *sbi = AFFS_SB(sb);
	pr_debug("AFFS: put_super()\n");

	if (!(sb->s_flags & MS_RDONLY) && sb->s_dirt)
		affs_commit_super(sb, 1, 1);

	kfree(sbi->s_prefix);
	affs_free_bitmap(sb);
	affs_brelse(sbi->s_root_bh);
	kfree(sbi);
	sb->s_fs_info = NULL;
}
开发者ID:Adjustxx，项目名称:Savaged-Zen，代码行数:15，代码来源:super.c


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