From 8e22c1a4e429e9facf309c7e7a03ba9cdfd7b106 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 7 Jun 2010 12:22:31 -0400 Subject: logfs: get rid of magical inodes ordering problems at ->kill_sb() time are solved by doing iput() of these suckers in ->put_super() Signed-off-by: Al Viro --- fs/logfs/super.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) (limited to 'fs/logfs/super.c') diff --git a/fs/logfs/super.c b/fs/logfs/super.c index d651e10a1e9c..5336155c5d81 100644 --- a/fs/logfs/super.c +++ b/fs/logfs/super.c @@ -342,24 +342,27 @@ static int logfs_get_sb_final(struct super_block *sb, struct vfsmount *mnt) goto fail; } + /* at that point we know that ->put_super() will be called */ super->s_erase_page = alloc_pages(GFP_KERNEL, 0); if (!super->s_erase_page) - goto fail; + return -ENOMEM; memset(page_address(super->s_erase_page), 0xFF, PAGE_SIZE); /* FIXME: check for read-only mounts */ err = logfs_make_writeable(sb); - if (err) - goto fail1; + if (err) { + __free_page(super->s_erase_page); + return err; + } log_super("LogFS: Finished mounting\n"); simple_set_mnt(mnt, sb); return 0; -fail1: - __free_page(super->s_erase_page); fail: - iput(logfs_super(sb)->s_master_inode); + iput(super->s_master_inode); + iput(super->s_segfile_inode); + iput(super->s_mapping_inode); return -EIO; } @@ -580,10 +583,14 @@ int logfs_get_sb_device(struct file_system_type *type, int flags, sb->s_flags |= MS_ACTIVE; err = logfs_get_sb_final(sb, mnt); if (err) - goto err1; - return 0; + deactivate_locked_super(sb); + return err; err1: + /* no ->s_root, no ->put_super() */ + iput(super->s_master_inode); + iput(super->s_segfile_inode); + iput(super->s_mapping_inode); deactivate_locked_super(sb); return err; err0: -- cgit v1.2.3