diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2014-10-05 22:56:00 -0400 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-12-14 16:23:47 +0000 |
| commit | cb3a8d202d5a53def600a510f873a7cc7bc41150 (patch) | |
| tree | cbe3fdf587e503d8f16d9dd44df79b349b1f3de2 /fs/ext4/ext4.h | |
| parent | a9fa6b67b710a73cd701d15ca101e682ff4b66c3 (diff) | |
| download | kernel_samsung_smdk4412-cb3a8d202d5a53def600a510f873a7cc7bc41150.zip kernel_samsung_smdk4412-cb3a8d202d5a53def600a510f873a7cc7bc41150.tar.gz kernel_samsung_smdk4412-cb3a8d202d5a53def600a510f873a7cc7bc41150.tar.bz2 | |
ext4: add ext4_iget_normal() which is to be used for dir tree lookups
commit f4bb2981024fc91b23b4d09a8817c415396dbabb upstream.
If there is a corrupted file system which has directory entries that
point at reserved, metadata inodes, prohibit them from being used by
treating them the same way we treat Boot Loader inodes --- that is,
mark them to be bad inodes. This prohibits them from being opened,
deleted, or modified via chmod, chown, utimes, etc.
In particular, this prevents a corrupted file system which has a
directory entry which points at the journal inode from being deleted
and its blocks released, after which point Much Hilarity Ensues.
Reported-by: Sami Liedes <sami.liedes@iki.fi>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 40f4d06..6858d9d 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1874,6 +1874,7 @@ int ext4_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create); extern struct inode *ext4_iget(struct super_block *, unsigned long); +extern struct inode *ext4_iget_normal(struct super_block *, unsigned long); extern int ext4_write_inode(struct inode *, struct writeback_control *); extern int ext4_setattr(struct dentry *, struct iattr *); extern int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry, |