From a5730b8bd3675f484ed0eacea052452048eeb35d Mon Sep 17 00:00:00 2001 From: Thomas Huth Date: Wed, 15 Dec 2021 13:58:24 +0100 Subject: [PATCH] block/file-posix: Simplify the XFS_IOC_DIOINFO handling The handling for the XFS_IOC_DIOINFO ioctl is currently quite excessive: This is not a "real" feature like the other features that we provide with the "--enable-xxx" and "--disable-xxx" switches for the configure script, since this does not influence lots of code (it's only about one call to xfsctl() in file-posix.c), so people don't gain much with the ability to disable this with "--disable-xfsctl". It's also unfortunate that the ioctl will be disabled on Linux in case the user did not install the right xfsprogs-devel package before running configure. Thus let's simplify this by providing the ioctl definition on our own, so we can completely get rid of the header dependency and thus the related code in the configure script. Suggested-by: Paolo Bonzini Signed-off-by: Thomas Huth Message-Id: <20211215125824.250091-1-thuth@redhat.com> Signed-off-by: Paolo Bonzini --- block/file-posix.c | 37 ++++++++----------- configure | 31 ---------------- meson.build | 1 - .../ci/org.centos/stream/8/x86_64/configure | 1 - scripts/coverity-scan/run-coverity-scan | 2 +- 5 files changed, 17 insertions(+), 55 deletions(-) diff --git a/block/file-posix.c b/block/file-posix.c index b283093e5b..1f1756e192 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -106,10 +106,6 @@ #include #endif -#ifdef CONFIG_XFS -#include -#endif - /* OS X does not have O_DSYNC */ #ifndef O_DSYNC #ifdef O_SYNC @@ -156,9 +152,6 @@ typedef struct BDRVRawState { int perm_change_flags; BDRVReopenState *reopen_state; -#ifdef CONFIG_XFS - bool is_xfs:1; -#endif bool has_discard:1; bool has_write_zeroes:1; bool discard_zeroes:1; @@ -409,14 +402,22 @@ static void raw_probe_alignment(BlockDriverState *bs, int fd, Error **errp) if (probe_logical_blocksize(fd, &bs->bl.request_alignment) < 0) { bs->bl.request_alignment = 0; } -#ifdef CONFIG_XFS - if (s->is_xfs) { - struct dioattr da; - if (xfsctl(NULL, fd, XFS_IOC_DIOINFO, &da) >= 0) { - bs->bl.request_alignment = da.d_miniosz; - /* The kernel returns wrong information for d_mem */ - /* s->buf_align = da.d_mem; */ - } + +#ifdef __linux__ + /* + * The XFS ioctl definitions are shipped in extra packages that might + * not always be available. Since we just need the XFS_IOC_DIOINFO ioctl + * here, we simply use our own definition instead: + */ + struct xfs_dioattr { + uint32_t d_mem; + uint32_t d_miniosz; + uint32_t d_maxiosz; + } da; + if (ioctl(fd, _IOR('X', 30, struct xfs_dioattr), &da) >= 0) { + bs->bl.request_alignment = da.d_miniosz; + /* The kernel returns wrong information for d_mem */ + /* s->buf_align = da.d_mem; */ } #endif @@ -798,12 +799,6 @@ static int raw_open_common(BlockDriverState *bs, QDict *options, #endif s->needs_alignment = raw_needs_alignment(bs); -#ifdef CONFIG_XFS - if (platform_test_xfs_fd(s->fd)) { - s->is_xfs = true; - } -#endif - bs->supported_zero_flags = BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK; if (S_ISREG(st.st_mode)) { /* When extending regular files, we get zeros from the OS */ diff --git a/configure b/configure index 030728d11e..3a523a3d14 100755 --- a/configure +++ b/configure @@ -291,7 +291,6 @@ EXTRA_CXXFLAGS="" EXTRA_LDFLAGS="" xen_ctrl_version="$default_feature" -xfs="$default_feature" membarrier="$default_feature" vhost_kernel="$default_feature" vhost_net="$default_feature" @@ -1021,10 +1020,6 @@ for opt do ;; --enable-opengl) opengl="yes" ;; - --disable-xfsctl) xfs="no" - ;; - --enable-xfsctl) xfs="yes" - ;; --disable-zlib-test) ;; --enable-guest-agent) guest_agent="yes" @@ -1431,7 +1426,6 @@ cat << EOF avx512f AVX512F optimization support replication replication support opengl opengl support - xfsctl xfsctl support qom-cast-debug cast debugging support tools build qemu-io, qemu-nbd and qemu-img tools bochs bochs image format support @@ -2323,28 +2317,6 @@ EOF fi fi -########################################## -# xfsctl() probe, used for file-posix.c -if test "$xfs" != "no" ; then - cat > $TMPC << EOF -#include /* NULL */ -#include -int main(void) -{ - xfsctl(NULL, 0, 0, NULL); - return 0; -} -EOF - if compile_prog "" "" ; then - xfs="yes" - else - if test "$xfs" = "yes" ; then - feature_not_found "xfs" "Install xfsprogs/xfslibs devel" - fi - xfs=no - fi -fi - ########################################## # plugin linker support probe @@ -3456,9 +3428,6 @@ echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak if test "$block_drv_whitelist_tools" = "yes" ; then echo "CONFIG_BDRV_WHITELIST_TOOLS=y" >> $config_host_mak fi -if test "$xfs" = "yes" ; then - echo "CONFIG_XFS=y" >> $config_host_mak -fi qemu_version=$(head $source_path/VERSION) echo "PKGVERSION=$pkgversion" >>$config_host_mak echo "SRC_PATH=$source_path" >> $config_host_mak diff --git a/meson.build b/meson.build index f0567daf42..be592aa942 100644 --- a/meson.build +++ b/meson.build @@ -3445,7 +3445,6 @@ if spice_protocol.found() summary_info += {' spice server support': spice} endif summary_info += {'rbd support': rbd} -summary_info += {'xfsctl support': config_host.has_key('CONFIG_XFS')} summary_info += {'smartcard support': cacard} summary_info += {'U2F support': u2f} summary_info += {'libusb': libusb} diff --git a/scripts/ci/org.centos/stream/8/x86_64/configure b/scripts/ci/org.centos/stream/8/x86_64/configure index 048e80dc49..e05f2fddcc 100755 --- a/scripts/ci/org.centos/stream/8/x86_64/configure +++ b/scripts/ci/org.centos/stream/8/x86_64/configure @@ -151,7 +151,6 @@ --disable-whpx \ --disable-xen \ --disable-xen-pci-passthrough \ ---disable-xfsctl \ --disable-xkbcommon \ --disable-zstd \ --enable-attr \ diff --git a/scripts/coverity-scan/run-coverity-scan b/scripts/coverity-scan/run-coverity-scan index 7395bbfad4..6d443250a9 100755 --- a/scripts/coverity-scan/run-coverity-scan +++ b/scripts/coverity-scan/run-coverity-scan @@ -398,7 +398,7 @@ echo "Configuring..." --enable-xen --enable-brlapi \ --enable-linux-aio --enable-attr \ --enable-cap-ng --enable-trace-backends=log --enable-spice --enable-rbd \ - --enable-xfsctl --enable-libusb --enable-usb-redir \ + --enable-libusb --enable-usb-redir \ --enable-libiscsi --enable-libnfs --enable-seccomp \ --enable-tpm --enable-libssh --enable-lzo --enable-snappy --enable-bzip2 \ --enable-numa --enable-rdma --enable-smartcard --enable-virglrenderer \