예제 #1
0
int jfs_umount_rw(struct super_block *sb)
{
	struct jfs_sb_info *sbi = JFS_SBI(sb);
	struct jfs_log *log = sbi->log;

	if (!log)
		return 0;

	/*
	 * close log:
	 *
	 * remove file system from log active file system list.
	 */
	jfs_flush_journal(log, 1);

	/*
	 * Make sure all metadata makes it to disk
	 */
	dbSync(sbi->ipbmap);
	diSync(sbi->ipimap);

	/*
	 * Note that we have to do this even if sync_blockdev() will
	 * do exactly the same a few instructions later:  We can't
	 * mark the superblock clean before everything is flushed to
	 * disk.
	 */
	filemap_write_and_wait(sbi->direct_inode->i_mapping);

	updateSuper(sb, FM_CLEAN);

	return lmLogClose(sb);
}
예제 #2
0
int jfs_umount_rw(struct super_block *sb)
{
	struct jfs_sb_info *sbi = JFS_SBI(sb);
	struct jfs_log *log = sbi->log;

	if (!log)
		return 0;

	/*
	 * close log: 
	 *
	 * remove file system from log active file system list.
	 */
	jfs_flush_journal(log, 2);

	/*
	 * Make sure all metadata makes it to disk
	 */
	dbSync(sbi->ipbmap);
	diSync(sbi->ipimap);
	fsync_inode_data_buffers(sb->s_bdev->bd_inode);

	updateSuper(sb, FM_CLEAN);
	sbi->log = NULL;

	return lmLogClose(sb, log);
}
int jfs_umount(struct super_block *sb)
{
	struct jfs_sb_info *sbi = JFS_SBI(sb);
	struct inode *ipbmap = sbi->ipbmap;
	struct inode *ipimap = sbi->ipimap;
	struct inode *ipaimap = sbi->ipaimap;
	struct inode *ipaimap2 = sbi->ipaimap2;
	struct jfs_log *log;
	int rc = 0;

	jfs_info("UnMount JFS: sb:0x%p", sb);

	if ((log = sbi->log))
		/*
		 * Wait for outstanding transactions to be written to log:
		 */
		jfs_flush_journal(log, 2);

	diUnmount(ipimap, 0);

	diFreeSpecial(ipimap);
	sbi->ipimap = NULL;

	ipaimap2 = sbi->ipaimap2;
	if (ipaimap2) {
		diUnmount(ipaimap2, 0);
		diFreeSpecial(ipaimap2);
		sbi->ipaimap2 = NULL;
	}

	ipaimap = sbi->ipaimap;
	diUnmount(ipaimap, 0);
	diFreeSpecial(ipaimap);
	sbi->ipaimap = NULL;

	dbUnmount(ipbmap, 0);

	diFreeSpecial(ipbmap);
	sbi->ipimap = NULL;

	filemap_write_and_wait(sbi->direct_inode->i_mapping);

	if (log) {		
		updateSuper(sb, FM_CLEAN);

		rc = lmLogClose(sb);
	}
	jfs_info("UnMount JFS Complete: rc = %d", rc);
	return rc;
}
예제 #4
0
int jfs_fsync(struct file *file, struct dentry *dentry, int datasync)
{
	struct inode *inode = dentry->d_inode;
	int rc = 0;

	if (!(inode->i_state & I_DIRTY) ||
	    (datasync && !(inode->i_state & I_DIRTY_DATASYNC))) {
		/* Make sure committed changes hit the disk */
		jfs_flush_journal(JFS_SBI(inode->i_sb)->log, 1);
		return rc;
	}

	rc |= jfs_commit_inode(inode, 1);

	return rc ? -EIO : 0;
}
int jfs_umount_rw(struct super_block *sb)
{
	struct jfs_sb_info *sbi = JFS_SBI(sb);
	struct jfs_log *log = sbi->log;

	if (!log)
		return 0;

	jfs_flush_journal(log, 2);

	dbSync(sbi->ipbmap);
	diSync(sbi->ipimap);

	filemap_write_and_wait(sbi->direct_inode->i_mapping);

	updateSuper(sb, FM_CLEAN);

	return lmLogClose(sb);
}
예제 #6
0
void jfs_write_inode(struct inode *inode, int wait)
{
	if (test_cflag(COMMIT_Nolink, inode))
		return;
	/*
	 * If COMMIT_DIRTY is not set, the inode isn't really dirty.
	 * It has been committed since the last change, but was still
	 * on the dirty inode list.
	 */
	 if (!test_cflag(COMMIT_Dirty, inode)) {
		/* Make sure committed changes hit the disk */
		jfs_flush_journal(JFS_SBI(inode->i_sb)->log, wait);
		return;
	 }

	if (jfs_commit_inode(inode, wait)) {
		jfs_err("jfs_write_inode: jfs_commit_inode failed!");
	}
}
예제 #7
0
int jfs_write_inode(struct inode *inode, struct writeback_control *wbc)
{
	int wait = 1; /* XXX fix fsync and use wbc->sync_mode == WB_SYNC_ALL; */

	if (test_cflag(COMMIT_Nolink, inode))
		return 0;
	/*
	 * If COMMIT_DIRTY is not set, the inode isn't really dirty.
	 * It has been committed since the last change, but was still
	 * on the dirty inode list.
	 */
	 if (!test_cflag(COMMIT_Dirty, inode)) {
		/* Make sure committed changes hit the disk */
		jfs_flush_journal(JFS_SBI(inode->i_sb)->log, wait);
		return 0;
	 }

	if (jfs_commit_inode(inode, wait)) {
		jfs_err("jfs_write_inode: jfs_commit_inode failed!");
		return -EIO;
	} else
		return 0;
}
예제 #8
0
파일: file.c 프로젝트: Abioy/kasan
int jfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
{
	struct inode *inode = file->f_mapping->host;
	int rc = 0;

	rc = filemap_write_and_wait_range(inode->i_mapping, start, end);
	if (rc)
		return rc;

	mutex_lock(&inode->i_mutex);
	if (!(inode->i_state & I_DIRTY_ALL) ||
	    (datasync && !(inode->i_state & I_DIRTY_DATASYNC))) {
		/* Make sure committed changes hit the disk */
		jfs_flush_journal(JFS_SBI(inode->i_sb)->log, 1);
		mutex_unlock(&inode->i_mutex);
		return rc;
	}

	rc |= jfs_commit_inode(inode, 1);
	mutex_unlock(&inode->i_mutex);

	return rc ? -EIO : 0;
}
예제 #9
0
/*
 * NAME:	jfs_umount(vfsp, flags, crp)
 *
 * FUNCTION:	vfs_umount()
 *
 * PARAMETERS:	vfsp	- virtual file system pointer
 *		flags	- unmount for shutdown
 *		crp	- credential
 *
 * RETURN :	EBUSY	- device has open files
 */
int jfs_umount(struct super_block *sb)
{
	struct jfs_sb_info *sbi = JFS_SBI(sb);
	struct inode *ipbmap = sbi->ipbmap;
	struct inode *ipimap = sbi->ipimap;
	struct inode *ipaimap = sbi->ipaimap;
	struct inode *ipaimap2 = sbi->ipaimap2;
	struct jfs_log *log;
	int rc = 0;

	jfs_info("UnMount JFS: sb:0x%p", sb);

	/*
	 *	update superblock and close log
	 *
	 * if mounted read-write and log based recovery was enabled
	 */
	if ((log = sbi->log))
		/*
		 * Wait for outstanding transactions to be written to log:
		 */
		jfs_flush_journal(log, 1);

	/*
	 * close fileset inode allocation map (aka fileset inode)
	 */
	diUnmount(ipimap, 0);

	diFreeSpecial(ipimap);
	sbi->ipimap = NULL;

	/*
	 * close secondary aggregate inode allocation map
	 */
	ipaimap2 = sbi->ipaimap2;
	if (ipaimap2) {
		diUnmount(ipaimap2, 0);
		diFreeSpecial(ipaimap2);
		sbi->ipaimap2 = NULL;
	}

	/*
	 * close aggregate inode allocation map
	 */
	ipaimap = sbi->ipaimap;
	diUnmount(ipaimap, 0);
	diFreeSpecial(ipaimap);
	sbi->ipaimap = NULL;

	/*
	 * close aggregate block allocation map
	 */
	dbUnmount(ipbmap, 0);

	diFreeSpecial(ipbmap);
	sbi->ipimap = NULL;

	/*
	 * Make sure all metadata makes it to disk before we mark
	 * the superblock as clean
	 */
	filemap_write_and_wait(sbi->direct_inode->i_mapping);

	/*
	 * ensure all file system file pages are propagated to their
	 * home blocks on disk (and their in-memory buffer pages are
	 * invalidated) BEFORE updating file system superblock state
	 * (to signify file system is unmounted cleanly, and thus in
	 * consistent state) and log superblock active file system
	 * list (to signify skip logredo()).
	 */
	if (log) {		/* log = NULL if read-only mount */
		updateSuper(sb, FM_CLEAN);

		/*
		 * close log:
		 *
		 * remove file system from log active file system list.
		 */
		rc = lmLogClose(sb);
	}
	jfs_info("UnMount JFS Complete: rc = %d", rc);
	return rc;
}