Date: Thu, 23 Mar 2023 20:05:24 GMT From: Kirk McKusick <mckusick@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 42c82aad327d - main - Improve chance of finding an alternate superblock in sbsearch(3). Message-ID: <202303232005.32NK5OaG037779@gitrepo.freebsd.org>
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The branch main has been updated by mckusick: URL: https://cgit.FreeBSD.org/src/commit/?id=42c82aad327d28cddba70ccd86986a5e5910ca0d commit 42c82aad327d28cddba70ccd86986a5e5910ca0d Author: Kirk McKusick <mckusick@FreeBSD.org> AuthorDate: 2023-03-23 20:03:20 +0000 Commit: Kirk McKusick <mckusick@FreeBSD.org> CommitDate: 2023-03-23 20:04:52 +0000 Improve chance of finding an alternate superblock in sbsearch(3). When requesting a superblock read for the sole purpose of getting the parameters needed to find if backup parameters have been stored, specify UFS_NOCSUM as only the base superblock is needed. This change reduces the number of checks that the superblock must pass. MFC after: 1 week --- sys/ufs/ffs/ffs_subr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/ufs/ffs/ffs_subr.c b/sys/ufs/ffs/ffs_subr.c index 1d4d98fcb67d..ba1d8c5c13c9 100644 --- a/sys/ufs/ffs/ffs_subr.c +++ b/sys/ufs/ffs/ffs_subr.c @@ -682,7 +682,7 @@ ffs_sbsearch(void *devfd, struct fs **fsp, int reqflags, */ if (msg) printf("Attempted recovery for standard superblock: failed\n"); - flags = UFS_FSRONLY | UFS_NOHASHFAIL | UFS_NOMSG; + flags = UFS_FSRONLY | UFS_NOHASHFAIL | UFS_NOCSUM | UFS_NOMSG; if (ffs_sbget(devfd, &protofs, UFS_STDSB, flags, filltype, readfunc) == 0) { if (msg)
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