erofs: fix ztailpacking on > 4GiB filesystems

z_idataoff here is an absolute physical offset, so it should use
erofs_off_t (64 bits at least). Otherwise, it'll get trimmed and
cause the decompresion failure.

Link: https://lore.kernel.org/r/[email protected]
Fixes: ab92184 ("erofs: add on-disk compressed tail-packing inline support")
Reviewed-by: Yue Hu <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Gao Xiang <[email protected]>

Author: hsiangkao

fs/erofs/internal.h

@@ -325,7 +325,7 @@ struct erofs_inode {
 			unsigned char  z_algorithmtype[2];
 			unsigned char  z_logical_clusterbits;
 			unsigned long  z_tailextent_headlcn;
-			unsigned int   z_idataoff;
+			erofs_off_t    z_idataoff;
 			unsigned short z_idata_size;
 		};
 #endif	/* CONFIG_EROFS_FS_ZIP */