PR/58837 CVS commit: src/sys/ufs/ffs

["Juergen Hannken-Illjes" <hannken%netbsd.org@localhost>]

The following reply was made to PR kern/58837; it has been noted by GNATS.

From: "Juergen Hannken-Illjes" <hannken%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/58837 CVS commit: src/sys/ufs/ffs
Date: Mon, 30 Dec 2024 09:03:07 +0000

 Module Name:	src
 Committed By:	hannken
 Date:		Mon Dec 30 09:03:07 UTC 2024
 
 Modified Files:
 	src/sys/ufs/ffs: ffs_vfsops.c ffs_wapbl.c
 
 Log Message:
 Protect test/clear fs->fs_fmod with um_lock like it is already
 protected in ffs_alloc.c.
 
 When writing to disk protect moving superblock to buffer with um_lock.
 
 Set/clear fs->fmod while mounting, updating a mount or unmounting
 is safe as these operations run exclusive, either mounting creates
 a new file system or the file system is suspended.  Assert suspension
 for update and unmount.
 
 PR kern/58837 "ffs: Missing locking around fs_fmod/time"
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.383 -r1.384 src/sys/ufs/ffs/ffs_vfsops.c
 cvs rdiff -u -r1.49 -r1.50 src/sys/ufs/ffs/ffs_wapbl.c
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.