88586bd480
- kvm-s390x-css-Introduce-an-ESW-struct.patch [bz#1957194] - kvm-s390x-css-Split-out-the-IRB-sense-data.patch [bz#1957194] - kvm-s390x-css-Refactor-IRB-construction.patch [bz#1957194] - kvm-s390x-css-Add-passthrough-IRB.patch [bz#1957194] - kvm-vhost-user-blk-Fail-gracefully-on-too-large-queue-si.patch [bz#1957194] - kvm-vhost-user-blk-Make-sure-to-set-Error-on-realize-fai.patch [bz#1957194] - kvm-vhost-user-blk-Don-t-reconnect-during-initialisation.patch [bz#1957194] - kvm-vhost-user-blk-Improve-error-reporting-in-realize.patch [bz#1957194] - kvm-vhost-user-blk-Get-more-feature-flags-from-vhost-dev.patch [bz#1957194] - kvm-virtio-Fail-if-iommu_platform-is-requested-but-unsup.patch [bz#1957194] - kvm-vhost-user-blk-Check-that-num-queues-is-supported-by.patch [bz#1957194] - kvm-vhost-user-Fix-backends-without-multiqueue-support.patch [bz#1957194] - kvm-file-posix-fix-max_iov-for-dev-sg-devices.patch [bz#1957194] - kvm-scsi-generic-pass-max_segments-via-max_iov-field-in-.patch [bz#1957194] - kvm-osdep-provide-ROUND_DOWN-macro.patch [bz#1957194] - kvm-block-backend-align-max_transfer-to-request-alignmen.patch [bz#1957194] - kvm-block-add-max_hw_transfer-to-BlockLimits.patch [bz#1957194] - kvm-file-posix-try-BLKSECTGET-on-block-devices-too-do-no.patch [bz#1957194] - kvm-block-Add-option-to-use-driver-whitelist-even-in-too.patch [bz#1957782] - kvm-spec-Restrict-block-drivers-in-tools.patch [bz#1957782] - kvm-Move-tools-to-separate-package.patch [bz#1972285] - kvm-Split-qemu-pr-helper-to-separate-package.patch [bz#1972300] - kvm-spec-RPM_BUILD_ROOT-buildroot.patch [bz#1973029] - kvm-spec-More-use-of-name-instead-of-qemu-kvm.patch [bz#1973029] - kvm-spec-Use-qemu-pr-helper.service-from-qemu.git.patch [bz#1973029] - kvm-spec-Use-_sourcedir-for-referencing-sources.patch [bz#1973029] - kvm-spec-Add-tools_only.patch [bz#1973029] - kvm-spec-build-Add-run_configure-helper.patch [bz#1973029] - kvm-spec-build-Disable-more-bits-with-disable_everything.patch [bz#1973029] - kvm-spec-build-Add-macros-for-some-configure-parameters.patch [bz#1973029] - kvm-spec-files-Move-qemu-guest-agent-and-qemu-img-earlie.patch [bz#1973029] - kvm-spec-install-Remove-redundant-bits.patch [bz#1973029] - kvm-spec-install-Add-modprobe_kvm_conf-macro.patch [bz#1973029] - kvm-spec-install-Remove-qemu-guest-agent-etc-qemu-kvm-us.patch [bz#1973029] - kvm-spec-install-clean-up-qemu-ga-section.patch [bz#1973029] - kvm-spec-install-Use-a-single-tools_only-section.patch [bz#1973029] - kvm-spec-Make-tools_only-not-cross-spec-sections.patch [bz#1973029] - kvm-spec-install-Limit-time-spent-in-qemu_kvm_build.patch [bz#1973029] - kvm-spec-misc-syntactic-merges-with-Fedora.patch [bz#1973029] - kvm-spec-Use-Fedora-s-pattern-for-specifying-rc-version.patch [bz#1973029] - kvm-spec-files-don-t-use-fine-grained-docs-file-list.patch [bz#1973029] - kvm-spec-files-Add-licenses-to-qemu-common-too.patch [bz#1973029] - kvm-spec-install-Drop-python3-shebang-fixup.patch [bz#1973029] - Resolves: bz#1957194 (Synchronize RHEL-AV 8.5.0 changes to RHEL 9.0.0 Beta) - Resolves: bz#1957782 (VMDK support should be read-only) - Resolves: bz#1972285 (Split out a qemu-kvm-tools subpackage) - Resolves: bz#1972300 (Split out a qemu-pr-helper subpackage) - Resolves: bz#1973029 (Spec file cleanups)
51 lines
1.7 KiB
Diff
51 lines
1.7 KiB
Diff
From 0111d01afe82c46656a40269bf21eb7702c02a09 Mon Sep 17 00:00:00 2001
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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Fri, 16 Jul 2021 16:51:29 -0400
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Subject: [PATCH 13/43] file-posix: fix max_iov for /dev/sg devices
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RH-Author: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Bugzilla: 1957194
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Even though it was only called for devices that have bs->sg set (which
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must be character devices), sg_get_max_segments looked at /sys/dev/block
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which only works for block devices.
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On Linux the sg driver has its own way to provide the maximum number of
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iovecs in a scatter/gather list, so add support for it. The block device
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path is kept because it will be reinstated in the next patches.
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Max Reitz <mreitz@redhat.com>
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(cherry picked from commit 8ad5ab6148dca8aad297c134c09c84b0b92d45ed)
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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block/file-posix.c | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/block/file-posix.c b/block/file-posix.c
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index 20e14f8e96..74d4903dc1 100644
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--- a/block/file-posix.c
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+++ b/block/file-posix.c
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@@ -1204,6 +1204,17 @@ static int sg_get_max_segments(int fd)
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goto out;
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}
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+ if (S_ISCHR(st.st_mode)) {
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+ if (ioctl(fd, SG_GET_SG_TABLESIZE, &ret) == 0) {
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+ return ret;
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+ }
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+ return -ENOTSUP;
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+ }
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+
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+ if (!S_ISBLK(st.st_mode)) {
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+ return -ENOTSUP;
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+ }
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+
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sysfspath = g_strdup_printf("/sys/dev/block/%u:%u/queue/max_segments",
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major(st.st_rdev), minor(st.st_rdev));
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sysfd = open(sysfspath, O_RDONLY);
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--
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2.27.0
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