Date: Sat, 04 Feb 2023 18:33:16 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=269261 --- Comment #6 from commit-hook@FreeBSD.org --- A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=3b6056204dd80cc866b7998ef0776247ebc42ce4 commit 3b6056204dd80cc866b7998ef0776247ebc42ce4 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2023-02-04 01:20:19 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2023-02-04 18:32:07 +0000 FIOSEEKHOLE/FIOSEEKDATA: correct consistency for bmap-based implementation Writes on UFS through a mapped region do not allocate disk blocks in holes immediately. The blocks are allocated when the pages are paged out first time. This breaks the algorithm in vn_bmap_seekhole() and ufs_bmap_seekdata(), because VOP_BMAP() reports hole for the place which already contains a valid data. Clean the pages before doing VOP_BMAP() in the affected functions. In principle, we could clean less by only requesting clean starting from the offset, but it is probably not very important. PR: 269261 Reported by: asomers Reviewed by: asomers, markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D38379 sys/kern/vfs_vnops.c | 14 ++++++++++++-- sys/ufs/ufs/ufs_bmap.c | 18 ++++++++++++++++++ sys/ufs/ufs/ufs_vnops.c | 2 +- 3 files changed, 31 insertions(+), 3 deletions(-) -- You are receiving this mail because: You are the assignee for the bug.