Date: Fri, 12 Feb 2021 01:07:02 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: e94f2f1be322 - main - ffs: call ufsdirhash_dirtrunc() right after setting directory size Message-ID: <202102120107.11C172iS070409@gitrepo.freebsd.org>
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The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=e94f2f1be32294cb6d519b6631f7522466fbbb3b commit e94f2f1be32294cb6d519b6631f7522466fbbb3b Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2021-01-28 18:33:58 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2021-02-12 01:02:19 +0000 ffs: call ufsdirhash_dirtrunc() right after setting directory size Later processing of ffs_truncate() might temporary unlock the directory vnode, causing unsychronized dirhash and inode sizes if update is postponed to UFS_TRUNCATE() callers. Reviewed by: chs, mkcusick Tested by: pho MFC after: 2 weeks Sponsored by: The FreeBSD Foundation --- sys/ufs/ffs/ffs_inode.c | 13 +++++++++++++ sys/ufs/ufs/ufs_lookup.c | 4 ---- sys/ufs/ufs/ufs_vnops.c | 2 -- 3 files changed, 13 insertions(+), 6 deletions(-) diff --git a/sys/ufs/ffs/ffs_inode.c b/sys/ufs/ffs/ffs_inode.c index 0b4172b34300..3df7bf8e8596 100644 --- a/sys/ufs/ffs/ffs_inode.c +++ b/sys/ufs/ffs/ffs_inode.c @@ -34,6 +34,7 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include "opt_ufs.h" #include "opt_quota.h" #include <sys/param.h> @@ -59,6 +60,10 @@ __FBSDID("$FreeBSD$"); #include <ufs/ufs/quota.h> #include <ufs/ufs/ufsmount.h> #include <ufs/ufs/inode.h> +#include <ufs/ufs/dir.h> +#ifdef UFS_DIRHASH +#include <ufs/ufs/dirhash.h> +#endif #include <ufs/ufs/ufs_extern.h> #include <ufs/ffs/fs.h> @@ -456,6 +461,10 @@ ffs_truncate(vp, length, flags, cred) ip->i_size = length; DIP_SET(ip, i_size, length); UFS_INODE_SET_FLAG(ip, IN_SIZEMOD | IN_CHANGE | IN_UPDATE); +#ifdef UFS_DIRHASH + if (vp->v_type == VDIR && ip->i_dirhash != NULL) + ufsdirhash_dirtrunc(ip, length); +#endif } else { lbn = lblkno(fs, length); flags |= BA_CLRBUF; @@ -482,6 +491,10 @@ ffs_truncate(vp, length, flags, cred) return (error); ip->i_size = length; DIP_SET(ip, i_size, length); +#ifdef UFS_DIRHASH + if (vp->v_type == VDIR && ip->i_dirhash != NULL) + ufsdirhash_dirtrunc(ip, length); +#endif size = blksize(fs, ip, lbn); if (vp->v_type != VDIR && offset != 0) bzero((char *)bp->b_data + offset, diff --git a/sys/ufs/ufs/ufs_lookup.c b/sys/ufs/ufs/ufs_lookup.c index 7dbd58f795cc..2f5fbf3d8001 100644 --- a/sys/ufs/ufs/ufs_lookup.c +++ b/sys/ufs/ufs/ufs_lookup.c @@ -1131,10 +1131,6 @@ ufs_direnter(dvp, tvp, dirp, cnp, newdirbp, isrename) vn_printf(dvp, "ufs_direnter: failed to truncate, error %d\n", error); -#ifdef UFS_DIRHASH - if (error == 0 && dp->i_dirhash != NULL) - ufsdirhash_dirtrunc(dp, I_ENDOFF(dp)); -#endif error = 0; if (tvp != NULL) vn_lock(tvp, LK_EXCLUSIVE | LK_RETRY); diff --git a/sys/ufs/ufs/ufs_vnops.c b/sys/ufs/ufs/ufs_vnops.c index 0e7ec7ae5453..70b5a44ca21d 100644 --- a/sys/ufs/ufs/ufs_vnops.c +++ b/sys/ufs/ufs/ufs_vnops.c @@ -1694,8 +1694,6 @@ unlockout: #ifdef UFS_DIRHASH if (error != 0) ufsdirhash_free(tdp); - else if (tdp->i_dirhash != NULL) - ufsdirhash_dirtrunc(tdp, endoff); #endif /* * Even if the directory compaction failed, rename was
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