diff options
Diffstat (limited to 'fs/nilfs2/cpfile.c')
| -rw-r--r-- | fs/nilfs2/cpfile.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c index deaa3d33a0aa..0d58075f34e2 100644 --- a/fs/nilfs2/cpfile.c +++ b/fs/nilfs2/cpfile.c @@ -942,6 +942,18 @@ int nilfs_cpfile_read(struct super_block *sb, size_t cpsize, struct inode *cpfile; int err; + if (cpsize > sb->s_blocksize) { + printk(KERN_ERR + "NILFS: too large checkpoint size: %zu bytes.\n", + cpsize); + return -EINVAL; + } else if (cpsize < NILFS_MIN_CHECKPOINT_SIZE) { + printk(KERN_ERR + "NILFS: too small checkpoint size: %zu bytes.\n", + cpsize); + return -EINVAL; + } + cpfile = nilfs_iget_locked(sb, NULL, NILFS_CPFILE_INO); if (unlikely(!cpfile)) return -ENOMEM; |