diff options
author | Chris Mason <chris.mason@oracle.com> | 2012-01-16 15:27:58 -0500 |
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committer | Chris Mason <chris.mason@oracle.com> | 2012-01-16 15:27:58 -0500 |
commit | c126dea771be1b3c370c0ffc4a09e6a82d492a49 (patch) | |
tree | 99fc723ba2e89d767e260244cf8d19467bc68c8b /fs/btrfs/Kconfig | |
parent | 9785dbdf265ddc47d5c88267d89a97648c0dc14b (diff) | |
parent | 21adbd5cbb5344a3fca6bb7ddb2ab6cb03c44546 (diff) |
Merge branch 'integrity-check-patch-v2' of git://btrfs.giantdisaster.de/git/btrfs into integration
Conflicts:
fs/btrfs/ctree.h
fs/btrfs/super.c
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/Kconfig')
-rw-r--r-- | fs/btrfs/Kconfig | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/btrfs/Kconfig b/fs/btrfs/Kconfig index ecb9fd3be14..d33f01c08b6 100644 --- a/fs/btrfs/Kconfig +++ b/fs/btrfs/Kconfig @@ -31,3 +31,22 @@ config BTRFS_FS_POSIX_ACL Linux website <http://acl.bestbits.at/>. If you don't know what Access Control Lists are, say N + +config BTRFS_FS_CHECK_INTEGRITY + bool "Btrfs with integrity check tool compiled in (DANGEROUS)" + depends on BTRFS_FS + help + Adds code that examines all block write requests (including + writes of the super block). The goal is to verify that the + state of the filesystem on disk is always consistent, i.e., + after a power-loss or kernel panic event the filesystem is + in a consistent state. + + If the integrity check tool is included and activated in + the mount options, plenty of kernel memory is used, and + plenty of additional CPU cycles are spent. Enabling this + functionality is not intended for normal use. + + In most cases, unless you are a btrfs developer who needs + to verify the integrity of (super)-block write requests + during the run of a regression test, say N |