From: Jan Kara jack@suse.cz
commit b40ebaf63851b3a401b0dc9263843538f64f5ce6 upstream.
Commit fb0a387dcdcd ("ext4: limit block allocations for indirect-block files to < 2^32") added code to try to allocate xattr block with 32-bit block number for indirect block based files on the grounds that these files cannot use larger block numbers. It also added BUG_ON when allocated block could not fit into 32 bits. This is however bogus reasoning because xattr block is stored in inode->i_file_acl and inode->i_file_acl_hi and as such even indirect block based files can happily use full 48 bits for xattr block number. The proper handling seems to be there basically since 64-bit block number support was added. So remove the bogus limitation and BUG_ON.
Cc: Eric Sandeen sandeen@redhat.com Fixes: fb0a387dcdcd ("ext4: limit block allocations for indirect-block files to < 2^32") Signed-off-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20221121130929.32031-1-jack@suse.cz Signed-off-by: Theodore Ts'o tytso@mit.edu Cc: stable@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ext4/xattr.c | 8 -------- 1 file changed, 8 deletions(-)
--- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -2070,19 +2070,11 @@ inserted:
goal = ext4_group_first_block_no(sb, EXT4_I(inode)->i_block_group); - - /* non-extent files can't have physical blocks past 2^32 */ - if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) - goal = goal & EXT4_MAX_BLOCK_FILE_PHYS; - block = ext4_new_meta_blocks(handle, inode, goal, 0, NULL, &error); if (error) goto cleanup;
- if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) - BUG_ON(block > EXT4_MAX_BLOCK_FILE_PHYS); - ea_idebug(inode, "creating block %llu", (unsigned long long)block);