From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Date: Mon, 14 Oct 2024 10:52:42 +0000 (+0300)
Subject: fs/ntfs3: Add check in ntfs_extend_initialized_size
X-Git-Tag: microblaze-v6.16~508^2~2
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=db1d2b4cc9c654d18dd17c65a14de2da78bdf998;p=linux-2.6-microblaze.git

fs/ntfs3: Add check in ntfs_extend_initialized_size

Check arguments again after lock.

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---

diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index f704ceef9539..0063e2351aa9 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -182,13 +182,15 @@ static int ntfs_extend_initialized_size(struct file *file,
 	loff_t pos = valid;
 	int err;
 
+	if (valid >= new_valid)
+		return 0;
+
 	if (is_resident(ni)) {
 		ni->i_valid = new_valid;
 		return 0;
 	}
 
 	WARN_ON(is_compressed(ni));
-	WARN_ON(valid >= new_valid);
 
 	for (;;) {
 		u32 zerofrom, len;