From: Theodore Ts'o <tytso@mit.edu>
Date: Wed, 12 Nov 2025 01:59:37 +0000 (-0500)
Subject: mke2fs: suppress large block warning if the kernel supports them
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0d6d9ba8eda618779cc6f0e1e03ac4146cdf15ca;p=thirdparty%2Fe2fsprogs.git

mke2fs: suppress large block warning if the kernel supports them

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---

diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index 2ace5a82..54c0f319 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -1816,7 +1816,8 @@ profile_error:
 					_("invalid block size - %s"), optarg);
 				exit(1);
 			}
-			if (blocksize > 4096)
+			if (blocksize > 4096 &&
+			    access("/sys/fs/ext4/features/blocksize_gt_pagesize", F_OK))
 				fprintf(stderr, _("Warning: blocksize %d not "
 						  "usable on most systems.\n"),
 					blocksize);