From: Chao Yu <chao@kernel.org>
Date: Tue, 13 May 2025 03:19:07 +0000 (+0800)
Subject: f2fs: add f2fs_bug_on() in f2fs_quota_read()
X-Git-Tag: v6.16-rc1~115^2~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5827e3c720e5a881bf97451e3c280445f67cba04;p=thirdparty%2Flinux.git

f2fs: add f2fs_bug_on() in f2fs_quota_read()

mapping_read_folio_gfp() will return a folio, it should always be
uptodate, let's check folio uptodate status to detect any potenial
bug.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index bd37139d0d9e3..7654f2beabdde 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2734,6 +2734,12 @@ repeat:
 			goto repeat;
 		}
 
+		/*
+		 * should never happen, just leave f2fs_bug_on() here to catch
+		 * any potential bug.
+		 */
+		f2fs_bug_on(F2FS_SB(sb), !folio_test_uptodate(folio));
+
 		memcpy_from_folio(data, folio, offset, tocopy);
 		f2fs_folio_put(folio, true);