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| author |  Ben Zhang <benzh@chromium.org>
| 2014-10-30 17:14:21 -0700 |
|---|---|---|
| committer |  Tony Luck <tony.luck@intel.com>
| 2014-11-05 09:58:17 -0800 |
| commit | a28726b4fb624f81d637a8afb9ea12fc16500f61 (patch) | |
| tree | 97dbec898efa336bca564174d2311acb35eb2c78 /fs/pstore/inode.c | |
| parent | Linux 3.18-rc3 (diff) | |
| download | linux-a28726b4fb624f81d637a8afb9ea12fc16500f61.tar.gz linux-a28726b4fb624f81d637a8afb9ea12fc16500f61.tar.bz2 linux-a28726b4fb624f81d637a8afb9ea12fc16500f61.zip | |
pstore/ram: Strip ramoops header for correct decompression
pstore compression/decompression was added during 3.12.
The ramoops driver prepends a "====timestamp.timestamp-C|D\n"
header to the compressed record before handing it over to pstore
driver which doesn't know about the header. In pstore_decompress(),
the pstore driver reads the first "==" as a zlib header, so the
decompression always fails. For example, this causes the driver
to write /dev/pstore/dmesg-ramoops-0.enc.z instead of
/dev/pstore/dmesg-ramoops-0.
This patch makes the ramoops driver remove the header before
pstore decompression.
Signed-off-by: Ben Zhang <benzh@chromium.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'fs/pstore/inode.c')
0 files changed, 0 insertions, 0 deletions