Changes since v1:
- Added CONFIG_DM_VERITY_FEC and split error correction into
dm-verity-fec.[ch] to further separate the functionality from the
rest of dm-verity. Follows the same pattern as dm-uevent.
- Added missing dependencies for REED_SOLOMON to Kconfig.
- Renamed dm-verity.c to dm-verity-target.c to allow an optional
object to be added. Follows the naming convention of dm-cache and
dm-era.
- Changed the algorithm to work with one or more small buffers (~4k)
instead of a single large one. The more buffers we can allocate,
the faster it will work, but we don't have to preallocate a large
amount of memory anymore.
- Changed memory allocation to use mempools. v2 preallocates all the
memory required for each worker thread to guarantee forward
progress in case of memory pressure. The code attempts to allocate
more buffers (using GFP_NOIO) and uses them if available.
- Added graceful handling of IO errors, which are now treated as any
other corruption.
- Rebased against linux-dm/for-next.
Sami Tolvanen (2):
dm verity: add support for forward error correction
dm verity: ignore zero blocks
Documentation/device-mapper/verity.txt | 30 +
drivers/md/Kconfig | 12 +
drivers/md/Makefile | 5 +
drivers/md/dm-verity-fec.c | 836 +++++++++++++++++++++++++
drivers/md/dm-verity-fec.h | 146 +++++
drivers/md/{dm-verity.c => dm-verity-target.c} | 320 ++++++----
drivers/md/dm-verity.h | 129 ++++
7 files changed, 1343 insertions(+), 135 deletions(-)
create mode 100644 drivers/md/dm-verity-fec.c
create mode 100644 drivers/md/dm-verity-fec.h
rename drivers/md/{dm-verity.c => dm-verity-target.c} (82%)
create mode 100644 drivers/md/dm-verity.h
--
2.6.0.rc2.230.g3dd15c0
--
dm-devel mailing list
dm-devel@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/dm-devel
