FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-04 14:10:46 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

md/raid5-cache: fix payload endianness problem in raid5-cache

Browse Source 
The payload->header.type and payload->size are little-endian, so just
convert them to the right byte order.

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Cc: <stable@vger.kernel.org> #v4.10+
Signed-off-by: Shaohua Li <shli@fb.com>
This commit is contained in:
Jason Yan 2017-03-25 09:44:39 +08:00 committed by Shaohua Li
parent 41743c1f04
commit 1ad45a9bc4
1 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/md/raid5-cache.c
View File

@ -2002,12 +2002,12 @@ r5l_recovery_verify_data_checksum_for_mb(struct r5l_log *log,
payload = (void *)mb + mb_offset; payload = (void *)mb + mb_offset;
payload_flush = (void *)mb + mb_offset; payload_flush = (void *)mb + mb_offset;
if (payload->header.type == R5LOG_PAYLOAD_DATA) { if (le16_to_cpu(payload->header.type) == R5LOG_PAYLOAD_DATA) {
if (r5l_recovery_verify_data_checksum( if (r5l_recovery_verify_data_checksum(
log, ctx, page, log_offset, log, ctx, page, log_offset,
payload->checksum[0]) < 0) payload->checksum[0]) < 0)
goto mismatch; goto mismatch;
} else if (payload->header.type == R5LOG_PAYLOAD_PARITY) { } else if (le16_to_cpu(payload->header.type) == R5LOG_PAYLOAD_PARITY) {
if (r5l_recovery_verify_data_checksum( if (r5l_recovery_verify_data_checksum(
log, ctx, page, log_offset, log, ctx, page, log_offset,
payload->checksum[0]) < 0) payload->checksum[0]) < 0)
@ -2019,12 +2019,12 @@ r5l_recovery_verify_data_checksum_for_mb(struct r5l_log *log,
BLOCK_SECTORS), BLOCK_SECTORS),
payload->checksum[1]) < 0) payload->checksum[1]) < 0)
goto mismatch; goto mismatch;
} else if (payload->header.type == R5LOG_PAYLOAD_FLUSH) { } else if (le16_to_cpu(payload->header.type) == R5LOG_PAYLOAD_FLUSH) {
/* nothing to do for R5LOG_PAYLOAD_FLUSH here */ /* nothing to do for R5LOG_PAYLOAD_FLUSH here */
} else /* not R5LOG_PAYLOAD_DATA/PARITY/FLUSH */ } else /* not R5LOG_PAYLOAD_DATA/PARITY/FLUSH */
goto mismatch; goto mismatch;
if (payload->header.type == R5LOG_PAYLOAD_FLUSH) { if (le16_to_cpu(payload->header.type) == R5LOG_PAYLOAD_FLUSH) {
mb_offset += sizeof(struct r5l_payload_flush) + mb_offset += sizeof(struct r5l_payload_flush) +
le32_to_cpu(payload_flush->size); le32_to_cpu(payload_flush->size);
} else { } else {
@ -2091,7 +2091,7 @@ r5c_recovery_analyze_meta_block(struct r5l_log *log,
payload = (void *)mb + mb_offset; payload = (void *)mb + mb_offset;
payload_flush = (void *)mb + mb_offset; payload_flush = (void *)mb + mb_offset;
if (payload->header.type == R5LOG_PAYLOAD_FLUSH) { if (le16_to_cpu(payload->header.type) == R5LOG_PAYLOAD_FLUSH) {
int i, count; int i, count;
count = le32_to_cpu(payload_flush->size) / sizeof(__le64); count = le32_to_cpu(payload_flush->size) / sizeof(__le64);
@ -2113,7 +2113,7 @@ r5c_recovery_analyze_meta_block(struct r5l_log *log,
} }
/* DATA or PARITY payload */ /* DATA or PARITY payload */
stripe_sect = (payload->header.type == R5LOG_PAYLOAD_DATA) ? stripe_sect = (le16_to_cpu(payload->header.type) == R5LOG_PAYLOAD_DATA) ?
raid5_compute_sector( raid5_compute_sector(
conf, le64_to_cpu(payload->location), 0, &dd, conf, le64_to_cpu(payload->location), 0, &dd,
NULL) NULL)
@ -2151,7 +2151,7 @@ r5c_recovery_analyze_meta_block(struct r5l_log *log,
list_add_tail(&sh->lru, cached_stripe_list); list_add_tail(&sh->lru, cached_stripe_list);
} }
if (payload->header.type == R5LOG_PAYLOAD_DATA) { if (le16_to_cpu(payload->header.type) == R5LOG_PAYLOAD_DATA) {
if (!test_bit(STRIPE_R5C_CACHING, &sh->state) && if (!test_bit(STRIPE_R5C_CACHING, &sh->state) &&
test_bit(R5_Wantwrite, &sh->dev[sh->pd_idx].flags)) { test_bit(R5_Wantwrite, &sh->dev[sh->pd_idx].flags)) {
r5l_recovery_replay_one_stripe(conf, sh, ctx); r5l_recovery_replay_one_stripe(conf, sh, ctx);
@ -2159,7 +2159,7 @@ r5c_recovery_analyze_meta_block(struct r5l_log *log,
} }
r5l_recovery_load_data(log, sh, ctx, payload, r5l_recovery_load_data(log, sh, ctx, payload,
log_offset); log_offset);
} else if (payload->header.type == R5LOG_PAYLOAD_PARITY) } else if (le16_to_cpu(payload->header.type) == R5LOG_PAYLOAD_PARITY)
r5l_recovery_load_parity(log, sh, ctx, payload, r5l_recovery_load_parity(log, sh, ctx, payload,
log_offset); log_offset);
else else
@ -2361,7 +2361,7 @@ r5c_recovery_rewrite_data_only_stripes(struct r5l_log *log,
payload = (void *)mb + offset; payload = (void *)mb + offset;
payload->header.type = cpu_to_le16( payload->header.type = cpu_to_le16(
R5LOG_PAYLOAD_DATA); R5LOG_PAYLOAD_DATA);
payload->size = BLOCK_SECTORS; payload->size = cpu_to_le32(BLOCK_SECTORS);
payload->location = cpu_to_le64( payload->location = cpu_to_le64(
raid5_compute_blocknr(sh, i, 0)); raid5_compute_blocknr(sh, i, 0));
addr = kmap_atomic(dev->page); addr = kmap_atomic(dev->page);