linux-kernel - [PATCH 5/6] fs/ntfs3: Create MFT zone only if length is large enough

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1282d35f-ed0d-e020-a4e5-8700744e2c3b@paragon-software.com>
Date:   Wed, 13 Jul 2022 19:47:14 +0300
From:   Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
To:     <ntfs3@...ts.linux.dev>
CC:     <linux-kernel@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>
Subject: [PATCH 5/6] fs/ntfs3: Create MFT zone only if length is large enough

Also removed uninformative print

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
---
  fs/ntfs3/fsntfs.c | 11 +++--------
  1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/fs/ntfs3/fsntfs.c b/fs/ntfs3/fsntfs.c
index e6f5bf684da4..d09213ae9755 100644
--- a/fs/ntfs3/fsntfs.c
+++ b/fs/ntfs3/fsntfs.c
@@ -806,12 +806,6 @@ int ntfs_refresh_zone(struct ntfs_sb_info *sbi)
  
  	/* Try to allocate clusters after last MFT run. */
  	zlen = wnd_find(wnd, sbi->zone_max, lcn_s, 0, &lcn_s);
-	if (!zlen) {
-		ntfs_notice(sbi->sb, "MftZone: unavailable");
-		return 0;
-	}
-
-	/* Truncate too large zone. */
  	wnd_zone_set(wnd, lcn_s, zlen);
  
  	return 0;
@@ -2473,8 +2467,9 @@ void mark_as_free_ex(struct ntfs_sb_info *sbi, CLST lcn, CLST len, bool trim)
  	if (zlen == zone_len) {
  		/* MFT zone already has maximum size. */
  	} else if (!zone_len) {
-		/* Create MFT zone. */
-		wnd_zone_set(wnd, lcn, zlen);
+		/* Create MFT zone only if 'zlen' is large enough. */
+		if (zlen == sbi->zone_max)
+			wnd_zone_set(wnd, lcn, zlen);
  	} else {
  		CLST zone_lcn = wnd_zone_bit(wnd);
  
-- 
2.37.0