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[99.254.114.190]) by smtp.gmail.com with ESMTPSA id ca18e2360f4ac-83503aacb18sm220272039f.30.2024.10.09.05.42.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Oct 2024 05:42:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1728477781; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=152PJdeA3wUbcFf7AgEvngUKCcBOBZ12l6LmuLbUvrQ=; b=GtPtV7cSKor/u3I9P73IidbSWWWlG5XJvfxscaRLWxif+BmtU79oMmFNQU8AaR2yUA2ugu blMorkjCHpSIuc//4inGo2TFHPjeLNXcJCegz4mTAnc8iKeQZdzWE+snozxQcrpQ3Rdwox d+8uO2QYqTyGP9gl+TiGMmwsdrysPy0= X-MC-Unique: _vnbvDF1OSuzWJsqrO8ZVw-1 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1728477779; x=1729082579; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=152PJdeA3wUbcFf7AgEvngUKCcBOBZ12l6LmuLbUvrQ=; b=lh5D3Tm3A7CohqZvR3NRQVQPGm6O1gVBci3UOcifoffmolHhRSheW43Ve1YqkoqAA9 vW7Lt5ki6twHKKx5mYrx+60Be1veH4dIomVEZcIKShVTVIx/+9iUKo8xcX4q8g4wfgtL L4SCTUsdA6VDdSQ3/VsmAD+t1UWjtDgyXSrx91bAyoJU+RUOIt5GqE2KXTRAsgIi3cPU s8liZqzicpHitKcBhmNOT9MyU/m3UQTXrfnxfnnSD247wql3fZEHIwBkU93+FSEkNOf8 exYI+xKGluGhi/DbgfCbbMsOFxrUAsyejCCncGSqdH5K6RjHrDmrNv15GE7BhDngUc8y 6RxQ== X-Gm-Message-State: AOJu0YzDa1Xx0rNn+JV25KlKpiGbAldgfp//VmQW9YNCCuxuw2pvkM7L SY1kfOvhVZnsRUeAzOpi06Pgy/XrDcyYNYvMdxHoA8dtQk9JHvJ5s9x5pKUMacLRRqk0w82wRFN 7pAzmBR1GX9ng5ufcJMldbXWI86wKsJF7r81jPWVf8ChuYr1lDai4SbsRqSpfBJo7NvDV0wdq6q grj0unw25up4NuiZxU4lHokYKTCA8CRFMApg== X-Received: by 2002:a05:6602:6424:b0:835:3957:4f7 with SMTP id ca18e2360f4ac-8353d5464d3mr253259139f.16.1728477778922; Wed, 09 Oct 2024 05:42:58 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGx71HISxuOWC3fSmpuC7qzDSSxBz883ofSayOmMXB/R/v2lDmP9hHbiJulzWiGt76U8f+1Pw== X-Received: by 2002:a05:6602:6424:b0:835:3957:4f7 with SMTP id ca18e2360f4ac-8353d5464d3mr253256739f.16.1728477778472; Wed, 09 Oct 2024 05:42:58 -0700 (PDT) From: Peter Xu To: qemu-devel@nongnu.org Cc: Peter Maydell , Fabiano Rosas , peterx@redhat.com, "Dr. David Alan Gilbert" Subject: [PULL 09/12] util/userfaultfd: Remove unused uffd_poll_events Date: Wed, 9 Oct 2024 08:42:35 -0400 Message-ID: <20241009124238.371084-10-peterx@redhat.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20241009124238.371084-1-peterx@redhat.com> References: <20241009124238.371084-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.151, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1728477848266116600 Content-Type: text/plain; charset="utf-8" From: "Dr. David Alan Gilbert" uffd_poll_events has been unused since it was added; it's also just a wrapper around a plain old poll call, so doesn't add anything. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Peter Xu Link: https://lore.kernel.org/r/20240919134626.166183-8-dave@treblig.org Signed-off-by: Peter Xu --- include/qemu/userfaultfd.h | 1 - util/userfaultfd.c | 28 ---------------------------- 2 files changed, 29 deletions(-) diff --git a/include/qemu/userfaultfd.h b/include/qemu/userfaultfd.h index 18a4314212..a1979308d7 100644 --- a/include/qemu/userfaultfd.h +++ b/include/qemu/userfaultfd.h @@ -39,7 +39,6 @@ int uffd_copy_page(int uffd_fd, void *dst_addr, void *src= _addr, int uffd_zero_page(int uffd_fd, void *addr, uint64_t length, bool dont_wak= e); int uffd_wakeup(int uffd_fd, void *addr, uint64_t length); int uffd_read_events(int uffd_fd, struct uffd_msg *msgs, int count); -bool uffd_poll_events(int uffd_fd, int tmo); =20 #endif /* CONFIG_LINUX */ =20 diff --git a/util/userfaultfd.c b/util/userfaultfd.c index 518d5c3586..2396104f23 100644 --- a/util/userfaultfd.c +++ b/util/userfaultfd.c @@ -358,31 +358,3 @@ int uffd_read_events(int uffd_fd, struct uffd_msg *msg= s, int count) =20 return (int) (res / sizeof(struct uffd_msg)); } - -/** - * uffd_poll_events: poll UFFD file descriptor for read - * - * Returns true if events are available for read, false otherwise - * - * @uffd_fd: UFFD file descriptor - * @tmo: timeout value - */ -bool uffd_poll_events(int uffd_fd, int tmo) -{ - int res; - struct pollfd poll_fd =3D { .fd =3D uffd_fd, .events =3D POLLIN, .reve= nts =3D 0 }; - - do { - res =3D poll(&poll_fd, 1, tmo); - } while (res < 0 && errno =3D=3D EINTR); - - if (res =3D=3D 0) { - return false; - } - if (res < 0) { - error_report("uffd_poll_events() failed: errno=3D%i", errno); - return false; - } - - return (poll_fd.revents & POLLIN) !=3D 0; -} --=20 2.45.0