Revert "fs: ext4: check the minimal partition size to mount"

This check breaks small partitions (under 1024 blocks) because part_length is in units of part.blksz and not bytes. Given the purpose of this function, we really want to make sure the partition is SUPERBLOCK_START + SUPERBLOCK_SIZE (2048) bytes so we can call ext4_read_superblock without error. The obvious solution is to convert callers from things like ext4fs_mount(part_info.size) to ext4fs_mount(part_info.size * part_info.blksz); However, I'm not really a fan of the bloat that would cause, especially since the error is now suppressed. I think the best course of action here is to just revert the patch. This reverts commit 9905cae. Signed-off-by: Sean Anderson <[email protected]> Reviewed-by: Simon Glass <[email protected]> Reviewed-by: Patrick Delaunay <[email protected]>
AndreyLalaev · Oct 18, 2023 · bfcf752 · bfcf752
1 parent a0733b3
commit bfcf752
Showing 1 changed file with 0 additions and 4 deletions.
diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c
@@ -2373,10 +2373,6 @@ int ext4fs_mount(unsigned part_length)
 	struct ext2_data *data;
 	int status;
 	struct ext_filesystem *fs = get_fs();
-
-	if (part_length < SUPERBLOCK_SIZE)
-		return 0;
-
 	data = zalloc(SUPERBLOCK_SIZE);
 	if (!data)
 		return 0;