shithub: lwext4

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Regard to gkostka, EXT4_MP_LOCK/UNLOCK should be implemented as recursive mutex.
https://github.com/ngkaho1234/lwext4/commit/d68a48bfeb7f77b46c64aa9dab1f93448c3ad601

--- a/lwext4/ext4.c

+++ b/lwext4/ext4.c

@@ -1899,7 +1899,6 @@

 	EXT4_MP_LOCK(mp);

 	ext4_block_cache_write_back(mp->fs.bdev, 1);

 	r = ext4_generic_open2(&f, path, O_RDONLY, filetype, 0, 0);

-	EXT4_MP_UNLOCK(mp);

 	if (r == EOK)

 		r = ext4_fread(&f, buf, bufsize, rcnt);

 	else

@@ -1908,7 +1907,6 @@

 	ext4_fclose(&f);

 Finish:

-	EXT4_MP_LOCK(mp);

 	ext4_block_cache_write_back(mp->fs.bdev, 0);

 	EXT4_MP_UNLOCK(mp);

 	return r;