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| author | Al Viro <viro@zeniv.linux.org.uk> | 2010-06-07 12:22:31 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-08-09 16:48:26 -0400 |
| commit | 8e22c1a4e429e9facf309c7e7a03ba9cdfd7b106 (patch) | |
| tree | cf708706e742d96fed8bf997feb279dc4f9a7426 /fs/logfs/super.c | |
| parent | 6fd1e5c994c392ebdbe45600051b2a32ec4860f1 (diff) | |
| download | linux-stable-8e22c1a4e429e9facf309c7e7a03ba9cdfd7b106.tar.gz linux-stable-8e22c1a4e429e9facf309c7e7a03ba9cdfd7b106.tar.bz2 linux-stable-8e22c1a4e429e9facf309c7e7a03ba9cdfd7b106.zip | |
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 <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/logfs/super.c')
| -rw-r--r-- | fs/logfs/super.c | 23 |
1 files changed, 15 insertions, 8 deletions
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: |