diff options
| author | Kirk McKusick <mckusick@FreeBSD.org> | 2023-06-13 07:21:43 +0000 |
|---|---|---|
| committer | Kirk McKusick <mckusick@FreeBSD.org> | 2023-07-22 00:22:10 +0000 |
| commit | 17207eae668b80561c98fe18a9a5e18409d47c58 (patch) | |
| tree | 72ad329ce97d47a56ddc23f963d343c06fda43f7 | |
| parent | 079a1c2059e7cc19360ff6840317efefdff876a1 (diff) | |
| download | src-17207eae668b80561c98fe18a9a5e18409d47c58.tar.gz src-17207eae668b80561c98fe18a9a5e18409d47c58.zip | |
Write out corrected superblock when creating a UFS/FFS snapshot.
PR: 271352
Tested-by: Peter Holm
Sponsored-by: The FreeBSD Foundation
(cherry picked from commit f1549d7d522995bf5d821ae08cc2f500ba545285)
| -rw-r--r-- | sys/ufs/ffs/ffs_snapshot.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/ufs/ffs/ffs_snapshot.c b/sys/ufs/ffs/ffs_snapshot.c index 709038db071f..a23f0ad502a9 100644 --- a/sys/ufs/ffs/ffs_snapshot.c +++ b/sys/ufs/ffs/ffs_snapshot.c @@ -207,7 +207,7 @@ ffs_snapshot(struct mount *mp, char *snapfile) long snaplistsize = 0; int32_t *lp; void *space; - struct fs *copy_fs = NULL, *fs; + struct fs *copy_fs = NULL, *fs, *bpfs; struct thread *td = curthread; struct inode *ip, *xp; struct buf *bp, *nbp, *ibp; @@ -828,8 +828,10 @@ resumefs: } else { loc = blkoff(fs, fs->fs_sblockloc); copy_fs->fs_fmod = 0; - copy_fs->fs_ckhash = ffs_calc_sbhash(copy_fs); - bcopy((char *)copy_fs, &nbp->b_data[loc], (u_int)fs->fs_sbsize); + bpfs = (struct fs *)&nbp->b_data[loc]; + bcopy((caddr_t)copy_fs, (caddr_t)bpfs, (u_int)fs->fs_sbsize); + ffs_oldfscompat_write(bpfs, ump); + bpfs->fs_ckhash = ffs_calc_sbhash(bpfs); bawrite(nbp); } /* |