diff options
| author | Anton Vorontsov <anton.vorontsov@linaro.org> | 2012-07-09 17:03:19 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-17 09:46:52 -0700 |
| commit | 5ca5d4e61d0cac15f36160ab48425c6e43bf2e2f (patch) | |
| tree | 7e35f66cc7863798f32e96fb2062b6006352dc04 /fs/pstore/ram_core.c | |
| parent | 4a53ffae6afc94bab803087245b3b45e712c21c8 (diff) | |
| download | linux-5ca5d4e61d0cac15f36160ab48425c6e43bf2e2f.tar.gz linux-5ca5d4e61d0cac15f36160ab48425c6e43bf2e2f.tar.bz2 linux-5ca5d4e61d0cac15f36160ab48425c6e43bf2e2f.zip | |
pstore/ram: Make ECC size configurable
This is now pretty straightforward: instead of using bool, just pass
an integer. For backwards compatibility ramoops.ecc=1 means 16 bytes
ECC (using 1 byte for ECC isn't much of use anyway).
Suggested-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/pstore/ram_core.c')
| -rw-r--r-- | fs/pstore/ram_core.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c index 3f4d6e64f6d7..7e5a2a9154ca 100644 --- a/fs/pstore/ram_core.c +++ b/fs/pstore/ram_core.c @@ -171,7 +171,8 @@ static void persistent_ram_ecc_old(struct persistent_ram_zone *prz) } } -static int persistent_ram_init_ecc(struct persistent_ram_zone *prz) +static int persistent_ram_init_ecc(struct persistent_ram_zone *prz, + int ecc_size) { int numerr; struct persistent_ram_buffer *buffer = prz->buffer; @@ -184,7 +185,7 @@ static int persistent_ram_init_ecc(struct persistent_ram_zone *prz) return 0; prz->ecc_block_size = 128; - prz->ecc_size = 16; + prz->ecc_size = ecc_size; ecc_blocks = DIV_ROUND_UP(prz->buffer_size, prz->ecc_block_size); ecc_total = (ecc_blocks + 1) * prz->ecc_size; @@ -390,13 +391,13 @@ static int persistent_ram_buffer_map(phys_addr_t start, phys_addr_t size, } static int __devinit persistent_ram_post_init(struct persistent_ram_zone *prz, - bool ecc) + int ecc_size) { int ret; - prz->ecc = ecc; + prz->ecc = ecc_size; - ret = persistent_ram_init_ecc(prz); + ret = persistent_ram_init_ecc(prz, ecc_size); if (ret) return ret; @@ -444,7 +445,7 @@ void persistent_ram_free(struct persistent_ram_zone *prz) struct persistent_ram_zone * __devinit persistent_ram_new(phys_addr_t start, size_t size, - bool ecc) + int ecc_size) { struct persistent_ram_zone *prz; int ret = -ENOMEM; @@ -459,7 +460,7 @@ struct persistent_ram_zone * __devinit persistent_ram_new(phys_addr_t start, if (ret) goto err; - ret = persistent_ram_post_init(prz, ecc); + ret = persistent_ram_post_init(prz, ecc_size); if (ret) goto err; |