Hi, This patch adds skeleton of functionality for file system hierarchy checking.
With the best regards, Vyacheslav Dubeyko. -- From: Vyacheslav Dubeyko <[email protected]> Subject: [PATCH v4 12/15] nilfs-utils: fsck: add skeleton of functionality for file system hierarchy checking This patch adds skeleton of functionality for file system hierarchy checking. Signed-off-by: Vyacheslav Dubeyko <[email protected]> --- sbin/fsck/nilfs_fs_hierarchy.c | 73 ++++++++++++++++++++++++++++++++++++++++ sbin/fsck/nilfs_fs_hierarchy.h | 38 +++++++++++++++++++++ 2 files changed, 111 insertions(+) create mode 100644 sbin/fsck/nilfs_fs_hierarchy.c create mode 100644 sbin/fsck/nilfs_fs_hierarchy.h diff --git a/sbin/fsck/nilfs_fs_hierarchy.c b/sbin/fsck/nilfs_fs_hierarchy.c new file mode 100644 index 0000000..02570c1 --- /dev/null +++ b/sbin/fsck/nilfs_fs_hierarchy.c @@ -0,0 +1,73 @@ +/* + * nilfs_fs_hierarchy.c - NILFS file system hierarchy checking, processing + * and recovering operations implementation + * + * Copyright (C) 2012 Vyacheslav Dubeyko <[email protected]> + * + * This file is part of NILFS. + * + * NILFS is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * NILFS is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with NILFS; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Written by Vyacheslav Dubeyko <[email protected]> + */ + +#include "fsck_common.h" +#include "fsck_raw_ops.h" + +#include "nilfs_fs_hierarchy.h" + +/***************************************************************************** + * FUNCTIONS DECLARATION + *****************************************************************************/ + +/***************************************************************************** + * IMPLEMENTATION SECTION + *****************************************************************************/ + +/***************************************************************************** + * NAME: fs_hierarchy_check_for_snapshot (fsck.nilfs2) + * + * FUNCTION: It checks validity of file system hierarchy for snapshot number. + * It means that it takes into account all changes were made + * before (and inclusive) requested snapshot. This function builds + * block bitmap on the basis of inodes info. Also it builds + * inode bitmap on the basis of hierarchy tree traversing. + * + * PARAMETERS: + * @snapshot: Snapshot number for check. + * + * RETURNS: + * NILFS_OK - File system hierarchy was checked successfully. + * %-CANNOT_CHECK_FS_HIERARCHY - FS hierarchy checking fails. + * %-INVALID_PARAMETER - Input parameters are invalid. + */ +int fs_hierarchy_check_for_snapshot(__u64 snapshot) +{ + int err = NILFS_OK; + + internal_debug("begin to check fs hierarchy: %lld.", snapshot); + + /*if (UNDEFINED_SNAPSHOT == snapshot || + snapshot > last_snapshot_number()) { + internal_debug("%s", + nilfs_message[INVALID_PARAMETER]); + return -INVALID_PARAMETER; + }*/ + + /*internal_info("<%s>: %s", __func__, nilfs_message[NOT_IMPLEMENTED]);*/ + + /* <TODO: implement> */ + return err; +} /* fs_hierarchy_check_for_snapshot() */ diff --git a/sbin/fsck/nilfs_fs_hierarchy.h b/sbin/fsck/nilfs_fs_hierarchy.h new file mode 100644 index 0000000..e7f1370 --- /dev/null +++ b/sbin/fsck/nilfs_fs_hierarchy.h @@ -0,0 +1,38 @@ +/* + * nilfs_fs_hierarchy.h - Declarations of operations for NILFS file system + * hierarchy checking, processing and recovering + * + * Copyright (C) 2012 Vyacheslav Dubeyko <[email protected]> + * + * This file is part of NILFS. + * + * NILFS is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * NILFS is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with NILFS; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Written by Vyacheslav Dubeyko <[email protected]> + */ + +#ifndef NILFS_FS_HIERARCHY_H +#define NILFS_FS_HIERARCHY_H + +/* + * It checks validity of file system hierarchy for snapshot number. + * It means that it takes into account all changes were made + * before (and inclusive) requested snapshot. This function builds + * block bitmap on the basis of inodes info. Also it builds + * inode bitmap on the basis of hierarchy tree traversing. + */ +int fs_hierarchy_check_for_snapshot(__u64 snapshot); + +#endif /* NILFS_FS_HIERARCHY_H */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
