[U-Boot] [PATCH 2/2] fs: fat: Reduce default max clustersize 64KiB from malloc pool

tien.fong.chee at intel.com
2019-01-17T06:52:28Z

From: Tien Fong Chee <tien.fong.chee@intel.com>

Release cluster block immediately when no longer use would help to reduce
64KiB memory allocated to the memory pool.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
---
fs/fat/fat.c | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index aa4636d..5574620 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -1153,12 +1153,19 @@ int file_fat_read_at(const char *filename, loff_t pos, void *buffer,
goto out_free_both;

debug("reading %s at pos %llu\n", filename, pos);
- ret = get_contents(&fsdata, itr->dent, pos, buffer, maxsize, actread);
+
+ /* For saving default max clustersize memory allocated to malloc pool */
+ dir_entry *dentptr = itr->dent;
+
+ free(itr);
+
+ ret = get_contents(&fsdata, dentptr, pos, buffer, maxsize, actread);

out_free_both:
free(fsdata.fatbuf);
out_free_itr:
- free(itr);
+ if (!itr)
+ free(itr);
return ret;
}

--
1.7.7.4