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From: Andiry Xu <jix024@eng.ucsd.edu>
To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-nvdimm@lists.01.org
Cc: dan.j.williams@intel.com, andy.rudoff@intel.com,
	coughlan@redhat.com, swanson@cs.ucsd.edu, david@fromorbit.com,
	jack@suse.com, swhiteho@redhat.com, miklos@szeredi.hu,
	andiry.xu@gmail.com, Andiry Xu <jix024@cs.ucsd.edu>
Subject: [RFC v2 52/83] Rebuild: file inode.
Date: Sat, 10 Mar 2018 10:18:33 -0800
Message-ID: <1520705944-6723-53-git-send-email-jix024@eng.ucsd.edu> (raw)
In-Reply-To: <1520705944-6723-1-git-send-email-jix024@eng.ucsd.edu>

From: Andiry Xu <jix024@cs.ucsd.edu>

Rebuild file inode metadata and radix tree on read_inode.

Signed-off-by: Andiry Xu <jix024@cs.ucsd.edu>
---
 fs/nova/log.h     |   4 ++
 fs/nova/rebuild.c | 124 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 128 insertions(+)

diff --git a/fs/nova/log.h b/fs/nova/log.h
index 87ce5f9..bdb85eb 100644
--- a/fs/nova/log.h
+++ b/fs/nova/log.h
@@ -385,6 +385,10 @@ int nova_inplace_update_write_entry(struct super_block *sb,
 int nova_append_file_write_entry(struct super_block *sb, struct nova_inode *pi,
 	struct inode *inode, struct nova_file_write_item *item,
 	struct nova_inode_update *update);
+int nova_assign_write_entry(struct super_block *sb,
+	struct nova_inode_info_header *sih,
+	struct nova_file_write_entry *entry,
+	bool free);
 int nova_invalidate_dentries(struct super_block *sb,
 	struct nova_inode_update *update);
 int nova_inplace_update_dentry(struct super_block *sb,
diff --git a/fs/nova/rebuild.c b/fs/nova/rebuild.c
index 9a1327d..07cf6e3 100644
--- a/fs/nova/rebuild.c
+++ b/fs/nova/rebuild.c
@@ -156,6 +156,126 @@ static int nova_rebuild_inode_finish(struct super_block *sb,
 	return 0;
 }
 
+static void nova_rebuild_handle_write_entry(struct super_block *sb,
+	struct nova_inode_info_header *sih, struct nova_inode_rebuild *reb,
+	struct nova_file_write_entry *entry)
+{
+	if (entry->num_pages != entry->invalid_pages) {
+		/*
+		 * The overlaped blocks are already freed.
+		 * Don't double free them, just re-assign the pointers.
+		 */
+		nova_assign_write_entry(sb, sih, entry, false);
+	}
+
+	if (entry->trans_id >= sih->trans_id) {
+		nova_rebuild_file_time_and_size(sb, reb,
+					entry->mtime, entry->mtime,
+					entry->size);
+		reb->trans_id = entry->trans_id;
+	}
+
+	/* Update sih->i_size for setattr apply operations */
+	sih->i_size = le64_to_cpu(reb->i_size);
+}
+
+static int nova_rebuild_file_inode_tree(struct super_block *sb,
+	struct nova_inode *pi, u64 pi_addr,
+	struct nova_inode_info_header *sih)
+{
+	struct nova_file_write_entry *entry = NULL;
+	struct nova_setattr_logentry *attr_entry = NULL;
+	struct nova_link_change_entry *link_change_entry = NULL;
+	struct nova_inode_rebuild rebuild, *reb;
+	unsigned int data_bits = blk_type_to_shift[sih->i_blk_type];
+	u64 ino = pi->nova_ino;
+	timing_t rebuild_time;
+	void *addr, *entryc = NULL;
+	u64 curr_p;
+	u8 type;
+	int ret;
+
+	NOVA_START_TIMING(rebuild_file_t, rebuild_time);
+	nova_dbg_verbose("Rebuild file inode %llu tree\n", ino);
+
+	reb = &rebuild;
+	ret = nova_rebuild_inode_start(sb, pi, sih, reb, pi_addr);
+	if (ret)
+		goto out;
+
+	curr_p = sih->log_head;
+	if (curr_p == 0 && sih->log_tail == 0)
+		goto out;
+
+//	nova_print_nova_log(sb, sih);
+
+	while (curr_p != sih->log_tail) {
+		if (goto_next_page(sb, curr_p)) {
+			sih->log_pages++;
+			curr_p = next_log_page(sb, curr_p);
+		}
+
+		if (curr_p == 0) {
+			nova_err(sb, "File inode %llu log is NULL!\n", ino);
+			ret = -EIO;
+			goto out;
+		}
+
+		addr = (void *)nova_get_block(sb, curr_p);
+
+		entryc = addr;
+
+		type = nova_get_entry_type(entryc);
+
+		switch (type) {
+		case SET_ATTR:
+			attr_entry = (struct nova_setattr_logentry *)entryc;
+			nova_apply_setattr_entry(sb, reb, sih, attr_entry);
+			sih->last_setattr = curr_p;
+			if (attr_entry->trans_id >= reb->trans_id) {
+				nova_rebuild_file_time_and_size(sb, reb,
+							attr_entry->mtime,
+							attr_entry->ctime,
+							attr_entry->size);
+				reb->trans_id = attr_entry->trans_id;
+			}
+
+			/* Update sih->i_size for setattr operation */
+			sih->i_size = le64_to_cpu(reb->i_size);
+			curr_p += sizeof(struct nova_setattr_logentry);
+			break;
+		case LINK_CHANGE:
+			link_change_entry =
+				(struct nova_link_change_entry *)entryc;
+			nova_apply_link_change_entry(sb, reb,
+						link_change_entry);
+			sih->last_link_change = curr_p;
+			curr_p += sizeof(struct nova_link_change_entry);
+			break;
+		case FILE_WRITE:
+			entry = (struct nova_file_write_entry *)addr;
+			nova_rebuild_handle_write_entry(sb, sih, reb,
+						entryc);
+			curr_p += sizeof(struct nova_file_write_entry);
+			break;
+		default:
+			nova_err(sb, "unknown type %d, 0x%llx\n", type, curr_p);
+			NOVA_ASSERT(0);
+			curr_p += sizeof(struct nova_file_write_entry);
+			break;
+		}
+
+	}
+
+	ret = nova_rebuild_inode_finish(sb, pi, sih, reb, curr_p);
+	sih->i_blocks = sih->log_pages + (sih->i_size >> data_bits);
+
+out:
+//	nova_print_inode_log_page(sb, inode);
+	NOVA_END_TIMING(rebuild_file_t, rebuild_time);
+	return ret;
+}
+
 /******************* Directory rebuild *********************/
 
 static inline void nova_rebuild_dir_time_and_size(struct super_block *sb,
@@ -360,12 +480,16 @@ int nova_rebuild_inode(struct super_block *sb, struct nova_inode_info *si,
 		/* Treat symlink files as normal files */
 		/* Fall through */
 	case S_IFREG:
+		nova_rebuild_file_inode_tree(sb, pi, pi_addr, sih);
 		break;
 	case S_IFDIR:
 		if (rebuild_dir)
 			nova_rebuild_dir_inode_tree(sb, pi, pi_addr, sih);
 		break;
 	default:
+		/* In case of special inode, walk the log */
+		if (pi->log_head)
+			nova_rebuild_file_inode_tree(sb, pi, pi_addr, sih);
 		sih->pi_addr = pi_addr;
 		break;
 	}
-- 
2.7.4

  parent reply index

Thread overview: 119+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-10 18:17 [RFC v2 00/83] NOVA: a new file system for persistent memory Andiry Xu
2018-03-10 18:17 ` [RFC v2 01/83] Introduction and documentation of NOVA filesystem Andiry Xu
2018-03-19 20:43   ` Randy Dunlap
2018-03-19 23:00     ` Andiry Xu
2018-04-22  8:05   ` Pavel Machek
2018-03-10 18:17 ` [RFC v2 02/83] Add nova_def.h Andiry Xu
2018-03-10 18:17 ` [RFC v2 03/83] Add super.h Andiry Xu
2018-03-15  4:54   ` Darrick J. Wong
2018-03-15  6:11     ` Andiry Xu
2018-03-15  9:05       ` Arnd Bergmann
2018-03-15 17:51         ` Andiry Xu
2018-03-15 20:04           ` Andreas Dilger
2018-03-15 20:38           ` Arnd Bergmann
2018-03-16  2:59             ` Theodore Y. Ts'o
2018-03-16  6:17               ` Andiry Xu
2018-03-16  6:30                 ` Darrick J. Wong
2018-03-16  9:19               ` Arnd Bergmann
2018-03-10 18:17 ` [RFC v2 04/83] NOVA inode definition Andiry Xu
2018-03-15  5:06   ` Darrick J. Wong
2018-03-15  6:16     ` Andiry Xu
2018-03-10 18:17 ` [RFC v2 05/83] Add NOVA filesystem definitions and useful helper routines Andiry Xu
2018-03-11 12:00   ` Nikolay Borisov
2018-03-11 19:22     ` Eric Biggers
2018-03-11 21:45       ` Andiry Xu
2018-03-19 19:39       ` Andiry Xu
2018-03-19 20:30         ` Eric Biggers
2018-03-19 21:59           ` Andiry Xu
2018-03-10 18:17 ` [RFC v2 06/83] Add inode get/read methods Andiry Xu
2018-04-23  6:12   ` Darrick J. Wong
2018-04-23 15:55     ` Andiry Xu
2018-03-10 18:17 ` [RFC v2 07/83] Initialize inode_info and rebuild inode information in nova_iget() Andiry Xu
2018-03-10 18:17 ` [RFC v2 08/83] NOVA superblock operations Andiry Xu
2018-03-10 18:17 ` [RFC v2 09/83] Add Kconfig and Makefile Andiry Xu
2018-03-11 12:15   ` Nikolay Borisov
2018-03-11 21:32     ` Andiry Xu
2018-03-10 18:17 ` [RFC v2 10/83] Add superblock integrity check Andiry Xu
2018-03-10 18:17 ` [RFC v2 11/83] Add timing and I/O statistics for performance analysis and profiling Andiry Xu
2018-03-10 18:17 ` [RFC v2 12/83] Add timing for mount and init Andiry Xu
2018-03-10 18:17 ` [RFC v2 13/83] Add remount_fs and show_options methods Andiry Xu
2018-03-10 18:17 ` [RFC v2 14/83] Add range node kmem cache Andiry Xu
2018-03-11 11:55   ` Nikolay Borisov
2018-03-11 21:31     ` Andiry Xu
2018-03-10 18:17 ` [RFC v2 15/83] Add free list data structure Andiry Xu
2018-03-10 18:17 ` [RFC v2 16/83] Initialize block map and free lists in nova_init() Andiry Xu
2018-03-11 12:12   ` Nikolay Borisov
2018-03-11 21:30     ` Andiry Xu
2018-03-10 18:17 ` [RFC v2 17/83] Add statfs support Andiry Xu
2018-03-10 18:17 ` [RFC v2 18/83] Add freelist statistics printing Andiry Xu
2018-03-10 18:18 ` [RFC v2 19/83] Add pmem block free routines Andiry Xu
2018-03-10 18:18 ` [RFC v2 20/83] Pmem block allocation routines Andiry Xu
2018-03-10 18:18 ` [RFC v2 21/83] Add log structure Andiry Xu
2018-03-10 18:18 ` [RFC v2 22/83] Inode log pages allocation and reclaimation Andiry Xu
2018-03-10 18:18 ` [RFC v2 23/83] Save allocator to pmem in put_super Andiry Xu
2018-03-10 18:18 ` [RFC v2 24/83] Initialize and allocate inode table Andiry Xu
2018-03-10 18:18 ` [RFC v2 25/83] Support get normal inode address and inode table extentsion Andiry Xu
2018-03-10 18:18 ` [RFC v2 26/83] Add inode_map to track inuse inodes Andiry Xu
2018-03-10 18:18 ` [RFC v2 27/83] Save the inode inuse list to pmem upon umount Andiry Xu
2018-03-10 18:18 ` [RFC v2 28/83] Add NOVA address space operations Andiry Xu
2018-03-10 18:18 ` [RFC v2 29/83] Add write_inode and dirty_inode routines Andiry Xu
2018-03-10 18:18 ` [RFC v2 30/83] New NOVA inode allocation Andiry Xu
2018-03-10 18:18 ` [RFC v2 31/83] Add new vfs " Andiry Xu
2018-03-10 18:18 ` [RFC v2 32/83] Add log entry definitions Andiry Xu
2018-03-10 18:18 ` [RFC v2 33/83] Inode log and entry printing for debug purpose Andiry Xu
2018-03-10 18:18 ` [RFC v2 34/83] Journal: NOVA light weight journal definitions Andiry Xu
2018-03-10 18:18 ` [RFC v2 35/83] Journal: Lite journal helper routines Andiry Xu
2018-03-10 18:18 ` [RFC v2 36/83] Journal: Lite journal recovery Andiry Xu
2018-03-10 18:18 ` [RFC v2 37/83] Journal: Lite journal create and commit Andiry Xu
2018-03-10 18:18 ` [RFC v2 38/83] Journal: NOVA lite journal initialization Andiry Xu
2018-03-10 18:18 ` [RFC v2 39/83] Log operation: dentry append Andiry Xu
2018-03-10 18:18 ` [RFC v2 40/83] Log operation: file write entry append Andiry Xu
2018-03-10 18:18 ` [RFC v2 41/83] Log operation: setattr " Andiry Xu
2018-03-10 18:18 ` [RFC v2 42/83] Log operation: link change append Andiry Xu
2018-03-10 18:18 ` [RFC v2 43/83] Log operation: in-place update log entry Andiry Xu
2018-03-10 18:18 ` [RFC v2 44/83] Log operation: invalidate log entries Andiry Xu
2018-03-10 18:18 ` [RFC v2 45/83] Log operation: file inode log lookup and assign Andiry Xu
2018-03-10 18:18 ` [RFC v2 46/83] Dir: Add Directory radix tree insert/remove methods Andiry Xu
2018-03-10 18:18 ` [RFC v2 47/83] Dir: Add initial dentries when initializing a directory inode log Andiry Xu
2018-03-10 18:18 ` [RFC v2 48/83] Dir: Readdir operation Andiry Xu
2018-03-10 18:18 ` [RFC v2 49/83] Dir: Append create/remove dentry Andiry Xu
2018-03-10 18:18 ` [RFC v2 50/83] Inode: Add nova_evict_inode Andiry Xu
2018-03-10 18:18 ` [RFC v2 51/83] Rebuild: directory inode Andiry Xu
2018-03-10 18:18 ` Andiry Xu [this message]
2018-03-10 18:18 ` [RFC v2 53/83] Namei: lookup Andiry Xu
2018-03-10 18:18 ` [RFC v2 54/83] Namei: create and mknod Andiry Xu
2018-03-10 18:18 ` [RFC v2 55/83] Namei: mkdir Andiry Xu
2018-03-10 18:18 ` [RFC v2 56/83] Namei: link and unlink Andiry Xu
2018-03-10 18:18 ` [RFC v2 57/83] Namei: rmdir Andiry Xu
2018-03-10 18:18 ` [RFC v2 58/83] Namei: rename Andiry Xu
2018-03-10 18:18 ` [RFC v2 59/83] Namei: setattr Andiry Xu
2018-03-10 18:18 ` [RFC v2 60/83] Add special inode operations Andiry Xu
2018-03-10 18:18 ` [RFC v2 61/83] Super: Add nova_export_ops Andiry Xu
2018-03-10 18:18 ` [RFC v2 62/83] File: getattr and file inode operations Andiry Xu
2018-03-10 18:18 ` [RFC v2 63/83] File operation: llseek Andiry Xu
2018-03-10 18:18 ` [RFC v2 64/83] File operation: open, fsync, flush Andiry Xu
2018-03-10 18:18 ` [RFC v2 65/83] File operation: read Andiry Xu
2018-03-10 18:18 ` [RFC v2 66/83] Super: Add file write item cache Andiry Xu
2018-03-10 18:18 ` [RFC v2 67/83] Dax: commit list of file write items to log Andiry Xu
2018-03-10 18:18 ` [RFC v2 68/83] File operation: copy-on-write write Andiry Xu
2018-03-10 18:18 ` [RFC v2 69/83] Super: Add module param inplace_data_updates Andiry Xu
2018-03-10 18:18 ` [RFC v2 70/83] File operation: Inplace write Andiry Xu
2018-03-10 18:18 ` [RFC v2 71/83] Symlink support Andiry Xu
2018-03-10 18:18 ` [RFC v2 72/83] File operation: fallocate Andiry Xu
2018-03-10 18:18 ` [RFC v2 73/83] Dax: Add iomap operations Andiry Xu
2018-03-10 18:18 ` [RFC v2 74/83] File operation: Mmap Andiry Xu
2018-03-10 18:18 ` [RFC v2 75/83] File operation: read/write iter Andiry Xu
2018-03-10 18:18 ` [RFC v2 76/83] Ioctl support Andiry Xu
2018-03-10 18:18 ` [RFC v2 77/83] GC: Fast garbage collection Andiry Xu
2018-03-10 18:18 ` [RFC v2 78/83] GC: Thorough " Andiry Xu
2018-03-10 18:19 ` [RFC v2 79/83] Normal recovery Andiry Xu
2018-03-10 18:19 ` [RFC v2 80/83] Failure recovery: bitmap operations Andiry Xu
2018-03-10 18:19 ` [RFC v2 81/83] Failure recovery: Inode pages recovery routines Andiry Xu
2018-03-10 18:19 ` [RFC v2 82/83] Failure recovery: Per-CPU recovery Andiry Xu
2018-03-10 18:19 ` [RFC v2 83/83] Sysfs support Andiry Xu
2018-03-15  0:33   ` Randy Dunlap
2018-03-15  6:07     ` Andiry Xu
2018-03-22 15:00   ` David Sterba
2018-03-23  0:31     ` Andiry Xu
2018-03-11  2:14 ` [RFC v2 00/83] NOVA: a new file system for persistent memory Theodore Y. Ts'o
2018-03-11  4:58   ` Andiry Xu

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