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pstore/ram: Do not use stack VLA for parity workspace

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Instead of using a stack VLA for the parity workspace, preallocate a
memory region. The preallocation is done to keep from needing to perform
allocations during crash dump writing, etc. This also fixes a missed
release of librs on free.

Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Kees Cook 2018-03-07 12:18:33 -08:00
parent fe1d475888
commit f2531f1976
2 changed files with 23 additions and 7 deletions
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1
include/linux/pstore_ram.h
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@ -39,6 +39,7 @@ struct persistent_ram_ecc_info {
int ecc_size;
int symsize;
int poly;
uint16_t *par;
};
struct persistent_ram_zone {