Date: Sat, 2 Apr 2016 06:18:19 +0000 (UTC) From: Dmitry Chagin <dchagin@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r297503 - stable/10/sys/compat/linux Message-ID: <201604020618.u326IJwm065623@repo.freebsd.org>
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Author: dchagin Date: Sat Apr 2 06:18:19 2016 New Revision: 297503 URL: https://svnweb.freebsd.org/changeset/base/297503 Log: MFC r297297: When write(2) on eventfd object fails with the error EAGAIN do not return the number of bytes written. Modified: stable/10/sys/compat/linux/linux_event.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/compat/linux/linux_event.c ============================================================================== --- stable/10/sys/compat/linux/linux_event.c Sat Apr 2 06:15:14 2016 (r297502) +++ stable/10/sys/compat/linux/linux_event.c Sat Apr 2 06:18:19 2016 (r297503) @@ -748,6 +748,8 @@ retry: if (UINT64_MAX - efd->efd_count <= count) { if ((efd->efd_flags & LINUX_O_NONBLOCK) != 0) { mtx_unlock(&efd->efd_lock); + /* Do not not return the number of bytes written */ + uio->uio_resid += sizeof(eventfd_t); return (EAGAIN); } error = mtx_sleep(&efd->efd_count, &efd->efd_lock,
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