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| author |   Geliang Tang <geliangtang@gmail.com> | 2018-03-09 18:51:07 +0800 |
|---|---|---|
| committer |   Kees Cook <keescook@chromium.org> | 2018-03-09 14:16:29 -0800 |
| commit | cb3bee0369bc9316e47f4ad95a3c33f4e0d50a06 (patch) | |
| tree | 0862290858ff5a4214a719caa0e49db9f72486e6 /fs/pstore/ram.c | |
| parent | pstore/ram: Do not use stack VLA for parity workspace (diff) | |
| download | linux-dev-cb3bee0369bc9316e47f4ad95a3c33f4e0d50a06.tar.xz linux-dev-cb3bee0369bc9316e47f4ad95a3c33f4e0d50a06.zip | |
pstore: Use crypto compress API
In the pstore compression part, we use zlib/lzo/lz4/lz4hc/842
compression algorithm API to implement pstore compression backends. But
there are many repeat codes in these implementations. This patch uses
crypto compress API to simplify these codes.
1) rewrite allocate_buf_for_compression, free_buf_for_compression,
pstore_compress, pstore_decompress functions using crypto compress API.
2) drop compress, decompress, allocate, free functions in pstore_zbackend,
and add zbufsize function to get each different compress buffer size.
3) use late_initcall to call ramoops_init later, to make sure the crypto
subsystem has already initialized.
4) use 'unsigned int' type instead of 'size_t' in pstore_compress,
pstore_decompress functions' length arguments.
5) rename 'zlib' to 'deflate' to follow the crypto API's name convention.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
[kees: tweaked error messages on allocation failures and Kconfig help]
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'fs/pstore/ram.c')
| -rw-r--r-- | fs/pstore/ram.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index 7125b398d312..49b2bc114868 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -938,7 +938,7 @@ static int __init ramoops_init(void) ramoops_register_dummy(); return platform_driver_register(&ramoops_driver); } -postcore_initcall(ramoops_init); +late_initcall(ramoops_init); static void __exit ramoops_exit(void) { |