Esempi in C++ (Cpp) per atime_changed_cb

Esempio n. 1

File: zfs_vfsops.c Progetto: Shengliang/zfs

int
zfs_domount(struct super_block *sb, void *data, int silent)
{
	zpl_mount_data_t *zmd = data;
	const char *osname = zmd->z_osname;
	zfs_sb_t *zsb;
	struct inode *root_inode;
	uint64_t recordsize;
	int error;

	error = zfs_sb_create(osname, &zsb);
	if (error)
		return (error);

	if ((error = dsl_prop_get_integer(osname, "recordsize",
	    &recordsize, NULL)))
		goto out;

	zsb->z_sb = sb;
	sb->s_fs_info = zsb;
	sb->s_magic = ZFS_SUPER_MAGIC;
	sb->s_maxbytes = MAX_LFS_FILESIZE;
	sb->s_time_gran = 1;
	sb->s_blocksize = recordsize;
	sb->s_blocksize_bits = ilog2(recordsize);

#ifdef HAVE_BDI
	/*
	 * 2.6.32 API change,
	 * Added backing_device_info (BDI) per super block interfaces.  A BDI
	 * must be configured when using a non-device backed filesystem for
	 * proper writeback.  This is not required for older pdflush kernels.
	 *
	 * NOTE: Linux read-ahead is disabled in favor of zfs read-ahead.
	 */
	zsb->z_bdi.ra_pages = 0;
	sb->s_bdi = &zsb->z_bdi;

	error = -bdi_setup_and_register(&zsb->z_bdi, "zfs", BDI_CAP_MAP_COPY);
	if (error)
		goto out;
#endif /* HAVE_BDI */

	/* Set callback operations for the file system. */
	sb->s_op = &zpl_super_operations;
	sb->s_xattr = zpl_xattr_handlers;
	sb->s_export_op = &zpl_export_operations;
#ifdef HAVE_S_D_OP
	sb->s_d_op = &zpl_dentry_operations;
#endif /* HAVE_S_D_OP */

	/* Set features for file system. */
	zfs_set_fuid_feature(zsb);

	if (dmu_objset_is_snapshot(zsb->z_os)) {
		uint64_t pval;

		atime_changed_cb(zsb, B_FALSE);
		readonly_changed_cb(zsb, B_TRUE);
		if ((error = dsl_prop_get_integer(osname,"xattr",&pval,NULL)))
			goto out;
		xattr_changed_cb(zsb, pval);
		if ((error = dsl_prop_get_integer(osname,"acltype",&pval,NULL)))
			goto out;
		acltype_changed_cb(zsb, pval);
		zsb->z_issnap = B_TRUE;
		zsb->z_os->os_sync = ZFS_SYNC_DISABLED;

		mutex_enter(&zsb->z_os->os_user_ptr_lock);
		dmu_objset_set_user(zsb->z_os, zsb);
		mutex_exit(&zsb->z_os->os_user_ptr_lock);
	} else {
		error = zfs_sb_setup(zsb, B_TRUE);
	}

	/* Allocate a root inode for the filesystem. */
	error = zfs_root(zsb, &root_inode);
	if (error) {
		(void) zfs_umount(sb);
		goto out;
	}

	/* Allocate a root dentry for the filesystem */
	sb->s_root = d_make_root(root_inode);
	if (sb->s_root == NULL) {
		(void) zfs_umount(sb);
		error = SET_ERROR(ENOMEM);
		goto out;
	}

	if (!zsb->z_issnap)
		zfsctl_create(zsb);
out:
	if (error) {
		dmu_objset_disown(zsb->z_os, zsb);
		zfs_sb_free(zsb);
	}

	return (error);
}

Esempio n. 2

File: zfs_vfsops.c Progetto: godouxm/zfs

int
zfs_domount(struct super_block *sb, void *data, int silent)
{
	zpl_mount_data_t *zmd = data;
	const char *osname = zmd->z_osname;
	zfs_sb_t *zsb;
	struct inode *root_inode;
	uint64_t recordsize;
	int error;

	error = zfs_sb_create(osname, &zsb);
	if (error)
		return (error);

	if ((error = dsl_prop_get_integer(osname, "recordsize",
	    &recordsize, NULL)))
		goto out;

	zsb->z_sb = sb;
	sb->s_fs_info = zsb;
	sb->s_magic = ZFS_SUPER_MAGIC;
	sb->s_maxbytes = MAX_LFS_FILESIZE;
	sb->s_time_gran = 1;
	sb->s_blocksize = recordsize;
	sb->s_blocksize_bits = ilog2(recordsize);
	zsb->z_bdi.ra_pages = 0;
	sb->s_bdi = &zsb->z_bdi;

	error = -zpl_bdi_setup_and_register(&zsb->z_bdi, "zfs");
	if (error)
		goto out;

	/* Set callback operations for the file system. */
	sb->s_op = &zpl_super_operations;
	sb->s_xattr = zpl_xattr_handlers;
	sb->s_export_op = &zpl_export_operations;
#ifdef HAVE_S_D_OP
	sb->s_d_op = &zpl_dentry_operations;
#endif /* HAVE_S_D_OP */

	/* Set features for file system. */
	zfs_set_fuid_feature(zsb);

	if (dmu_objset_is_snapshot(zsb->z_os)) {
		uint64_t pval;

		atime_changed_cb(zsb, B_FALSE);
		readonly_changed_cb(zsb, B_TRUE);
		if ((error = dsl_prop_get_integer(osname,
		    "xattr", &pval, NULL)))
			goto out;
		xattr_changed_cb(zsb, pval);
		if ((error = dsl_prop_get_integer(osname,
		    "acltype", &pval, NULL)))
			goto out;
		acltype_changed_cb(zsb, pval);
		zsb->z_issnap = B_TRUE;
		zsb->z_os->os_sync = ZFS_SYNC_DISABLED;

		mutex_enter(&zsb->z_os->os_user_ptr_lock);
		dmu_objset_set_user(zsb->z_os, zsb);
		mutex_exit(&zsb->z_os->os_user_ptr_lock);
	} else {
		error = zfs_sb_setup(zsb, B_TRUE);
	}

	/* Allocate a root inode for the filesystem. */
	error = zfs_root(zsb, &root_inode);
	if (error) {
		(void) zfs_umount(sb);
		goto out;
	}

	/* Allocate a root dentry for the filesystem */
	sb->s_root = d_make_root(root_inode);
	if (sb->s_root == NULL) {
		(void) zfs_umount(sb);
		error = SET_ERROR(ENOMEM);
		goto out;
	}

	if (!zsb->z_issnap)
		zfsctl_create(zsb);

	zsb->z_arc_prune = arc_add_prune_callback(zpl_prune_sb, sb);
out:
	if (error) {
		dmu_objset_disown(zsb->z_os, zsb);
		zfs_sb_free(zsb);
	}

	return (error);
}