github-mirrors/thirdparty-littlefs
1
0
Fork 0
mirror of https://github.com/eledio-devices/thirdparty-littlefs.git synced 2025-10-31 00:32:38 +01:00
Code Issues Packages Projects Releases Wiki Activity

Fixed read cache amount based on hint and offset

Browse Source 
Found by apmorton
This commit is contained in:
Christopher Haster
2019-05-21 17:21:52 -05:00
parent bc7bed740b
commit 9899c7fe48
1 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
lfs.c
View File

@@ -84,9 +84,12 @@ static int lfs_bd_read(lfs_t *lfs,
LFS_ASSERT(block < lfs->cfg->block_count);
rcache->block = block;
rcache->off = lfs_aligndown(off, lfs->cfg->read_size);
rcache->size = lfs_min(lfs_alignup(off+hint, lfs->cfg->read_size),
lfs_min(lfs->cfg->block_size - rcache->off,
lfs->cfg->cache_size));
rcache->size = lfs_min(
lfs_min(
lfs_alignup(off+hint, lfs->cfg->read_size),
lfs->cfg->block_size)
- rcache->off,
lfs->cfg->cache_size);
int err = lfs->cfg->read(lfs->cfg, rcache->block,
rcache->off, rcache->buffer, rcache->size);
if (err) {