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[device/bcache] bcache_read_bytes should put blocks

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This commit is contained in:
David Teigland 2018-02-08 13:44:54 -06:00
parent 7be54bd687
commit 93fc937429
1 changed files with 8 additions and 3 deletions
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11
lib/device/bcache.c
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@ -1009,14 +1009,17 @@ bool bcache_read_bytes(struct bcache *cache, int fd, off_t start, size_t len, vo
block_address bb, be, i;
unsigned char *udata = data;
off_t block_size = cache->block_sectors << SECTOR_SHIFT;
int errors = 0;
byte_range_to_block_range(cache, start, len, &bb, &be);
for (i = bb; i < be; i++)
bcache_prefetch(cache, fd, i);
for (i = bb; i < be; i++) {
if (!bcache_get(cache, fd, i, 0, &b))
return false;
if (!bcache_get(cache, fd, i, 0, &b)) {
errors++;
continue;
}
if (i == bb) {
off_t block_offset = start % block_size;
@ -1030,9 +1033,11 @@ bool bcache_read_bytes(struct bcache *cache, int fd, off_t start, size_t len, vo
len -= blen;
udata += blen;
}
bcache_put(b);
}
return true;
return errors ? false : true;
}
//----------------------------------------------------------------