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authorTheodore Ts'o <tytso@mit.edu>2009-05-17 15:38:01 -0400
committerTheodore Ts'o <tytso@mit.edu>2009-05-17 15:38:01 -0400
commit6fd058f7791087648c683eb8572edf3be3c4c23c (patch)
tree0d80791532d2d022c91f20013003716eaf0afb40 /fs/ext4/Makefile
parent2ac3b6e00acb46406c993d57921f86a594aafe08 (diff)
downloadlinux-stericsson-6fd058f7791087648c683eb8572edf3be3c4c23c.tar.gz
ext4: Add a comprehensive block validity check to ext4_get_blocks()
To catch filesystem bugs or corruption which could lead to the filesystem getting severly damaged, this patch adds a facility for tracking all of the filesystem metadata blocks by contiguous regions in a red-black tree. This allows quick searching of the tree to locate extents which might overlap with filesystem metadata blocks. This facility is also used by the multi-block allocator to assure that it is not allocating blocks out of the system zone, as well as by the routines used when reading indirect blocks and extents information from disk to make sure their contents are valid. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/Makefile')
-rw-r--r--fs/ext4/Makefile4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/Makefile b/fs/ext4/Makefile
index a8ff003a00f7..8a34710ecf40 100644
--- a/fs/ext4/Makefile
+++ b/fs/ext4/Makefile
@@ -5,8 +5,8 @@
obj-$(CONFIG_EXT4_FS) += ext4.o
ext4-y := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
- ioctl.o namei.o super.o symlink.o hash.o resize.o extents.o \
- ext4_jbd2.o migrate.o mballoc.o
+ ioctl.o namei.o super.o symlink.o hash.o resize.o extents.o \
+ ext4_jbd2.o migrate.o mballoc.o block_validity.o
ext4-$(CONFIG_EXT4_FS_XATTR) += xattr.o xattr_user.o xattr_trusted.o
ext4-$(CONFIG_EXT4_FS_POSIX_ACL) += acl.o