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charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/stable/14 X-Git-Reftype: branch X-Git-Commit: 9dbf67a7948d7ba6bc8baa6d59a30aa2dc75f564 Auto-Submitted: auto-generated Date: Fri, 09 Oct 2026 02:22:15 +0000 Message-Id: <6ac84fd7.27fc8.2d8b9f0d@gitrepo.freebsd.org> The branch stable/14 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=9dbf67a7948d7ba6bc8baa6d59a30aa2dc75f564 commit 9dbf67a7948d7ba6bc8baa6d59a30aa2dc75f564 Author: Konstantin Belousov AuthorDate: 2026-08-14 05:46:07 +0000 Commit: Konstantin Belousov CommitDate: 2026-10-09 02:21:04 +0000 kern/sys_process.c: make vmspace_rwmem() similar to io functions PR: 297512 (cherry picked from commit 1a71d24ecd0dbaf61fd2a44166e9be07c328b198) --- sys/kern/sys_process.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/sys/kern/sys_process.c b/sys/kern/sys_process.c index def87f8a1cd5..ab9aa519046e 100644 --- a/sys/kern/sys_process.c +++ b/sys/kern/sys_process.c @@ -430,6 +430,7 @@ vmspace_rwmem(struct vmspace *vm, struct uio *uio) vm_map_t map; vm_offset_t pageno; /* page number */ vm_prot_t reqprot; + ssize_t orig_resid; int error, fault_flags, page_offset, writing; map = &vm->vm_map; @@ -443,6 +444,8 @@ vmspace_rwmem(struct vmspace *vm, struct uio *uio) reqprot = writing ? VM_PROT_COPY | VM_PROT_READ : VM_PROT_READ; fault_flags = writing ? VM_FAULT_DIRTY : VM_FAULT_NORMAL; + orig_resid = uio->uio_resid; + /* * Only map in one page at a time. We don't have to, but it * makes things easier. This way is trivial - right? @@ -497,8 +500,8 @@ vmspace_rwmem(struct vmspace *vm, struct uio *uio) vm_page_unwire(m, PQ_ACTIVE); } while (error == 0 && uio->uio_resid > 0); + return (uio->uio_resid == orig_resid ? error : 0); - return (error); } int