From nobody Sat Jun 1 07:37:17 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1564130048; cv=none; d=zoho.com; s=zohoarc; b=kOj/JDXqFbYh8B3C0P//6HIqz29U2Ftb66jL3RdtwA1k3qRNMpU5yuayV0UzldH35rrH/8/P0VJrHelMH2B4pErYmjdpnsbKHXdHdYmJ2iyTP0cEKc76BblLtSdZdUPuNj9gEKB9yW02OjfNF51RliGZfgXKltRZ/od+b3GCikU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1564130048; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; 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Fri, 26 Jul 2019 04:33:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hqvfR-0001J6-8o for qemu-devel@nongnu.org; Fri, 26 Jul 2019 04:33:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:47934) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hqvfQ-00018r-Sm for qemu-devel@nongnu.org; Fri, 26 Jul 2019 04:33:33 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C689A3086208 for ; Fri, 26 Jul 2019 08:33:30 +0000 (UTC) Received: from localhost (ovpn-117-212.ams2.redhat.com [10.36.117.212]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5C49E5C46C; Fri, 26 Jul 2019 08:33:30 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org, virtio-fs@redhat.com Date: Fri, 26 Jul 2019 09:33:20 +0100 Message-Id: <20190726083322.13637-2-stefanha@redhat.com> In-Reply-To: <20190726083322.13637-1-stefanha@redhat.com> References: <20190726083322.13637-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.42]); Fri, 26 Jul 2019 08:33:30 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 1/3] virtiofsd: sync up fuse.h Linux 5.1 header X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Dr. David Alan Gilbert" , Stefan Hajnoczi Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Signed-off-by: Stefan Hajnoczi --- contrib/virtiofsd/fuse_kernel.h | 51 ++++++++++++++++++++++----------- 1 file changed, 34 insertions(+), 17 deletions(-) diff --git a/contrib/virtiofsd/fuse_kernel.h b/contrib/virtiofsd/fuse_kerne= l.h index 3186efbed6..7722e0ac23 100644 --- a/contrib/virtiofsd/fuse_kernel.h +++ b/contrib/virtiofsd/fuse_kernel.h @@ -119,6 +119,12 @@ * * 7.28 * - add FUSE_COPY_FILE_RANGE + * - add FOPEN_CACHE_DIR + * - add FUSE_MAX_PAGES, add max_pages to init_out + * - add FUSE_CACHE_SYMLINKS + * + * 7.29 + * - add FUSE_NO_OPENDIR_SUPPORT flag */ =20 #ifndef _LINUX_FUSE_H @@ -154,7 +160,7 @@ #define FUSE_KERNEL_VERSION 7 =20 /** Minor version number of this interface */ -#define FUSE_KERNEL_MINOR_VERSION 27 +#define FUSE_KERNEL_MINOR_VERSION 29 =20 /** The node ID of the root inode */ #define FUSE_ROOT_ID 1 @@ -222,10 +228,12 @@ struct fuse_file_lock { * FOPEN_DIRECT_IO: bypass page cache for this open file * FOPEN_KEEP_CACHE: don't invalidate the data cache on open * FOPEN_NONSEEKABLE: the file is not seekable + * FOPEN_CACHE_DIR: allow caching this directory */ #define FOPEN_DIRECT_IO (1 << 0) #define FOPEN_KEEP_CACHE (1 << 1) #define FOPEN_NONSEEKABLE (1 << 2) +#define FOPEN_CACHE_DIR (1 << 3) =20 /** * INIT request/reply flags @@ -252,6 +260,9 @@ struct fuse_file_lock { * FUSE_HANDLE_KILLPRIV: fs handles killing suid/sgid/cap on write/chown/t= runc * FUSE_POSIX_ACL: filesystem supports posix acls * FUSE_ABORT_ERROR: reading the device after abort returns ECONNABORTED + * FUSE_MAX_PAGES: init_out.max_pages contains the max number of req pages + * FUSE_CACHE_SYMLINKS: cache READLINK responses + * FUSE_NO_OPENDIR_SUPPORT: kernel supports zero-message opendir */ #define FUSE_ASYNC_READ (1 << 0) #define FUSE_POSIX_LOCKS (1 << 1) @@ -275,6 +286,9 @@ struct fuse_file_lock { #define FUSE_HANDLE_KILLPRIV (1 << 19) #define FUSE_POSIX_ACL (1 << 20) #define FUSE_ABORT_ERROR (1 << 21) +#define FUSE_MAX_PAGES (1 << 22) +#define FUSE_CACHE_SYMLINKS (1 << 23) +#define FUSE_NO_OPENDIR_SUPPORT (1 << 24) =20 /** * CUSE INIT request/reply flags @@ -385,8 +399,8 @@ enum fuse_opcode { FUSE_RENAME2 =3D 45, FUSE_LSEEK =3D 46, FUSE_COPY_FILE_RANGE =3D 47, - FUSE_SETUPMAPPING =3D 48, - FUSE_REMOVEMAPPING =3D 49, + FUSE_SETUPMAPPING =3D 48, + FUSE_REMOVEMAPPING =3D 49, =20 /* CUSE specific operations */ CUSE_INIT =3D 4096, @@ -621,7 +635,9 @@ struct fuse_init_out { uint16_t congestion_threshold; uint32_t max_write; uint32_t time_gran; - uint32_t unused[9]; + uint16_t max_pages; + uint16_t padding; + uint32_t unused[8]; }; =20 #define CUSE_INIT_INFO_MAX 4096 @@ -814,31 +830,32 @@ struct fuse_copy_file_range_in { }; =20 #define FUSE_SETUPMAPPING_FLAG_WRITE (1ull << 0) +#define FUSE_SETUPMAPPING_FLAG_READ (1ull << 1) struct fuse_setupmapping_in { - /* An already open handle */ + /* An already open handle */ uint64_t fh; - /* Offset into the file to start the mapping */ - uint64_t foffset; - /* Length of mapping required */ - uint64_t len; - /* Flags, FUSE_SETUPMAPPING_FLAG_* */ - uint64_t flags; - /* memory offset in to dax window */ - uint64_t moffset; + /* Offset into the file to start the mapping */ + uint64_t foffset; + /* Length of mapping required */ + uint64_t len; + /* Flags, FUSE_SETUPMAPPING_FLAG_* */ + uint64_t flags; + /* Offset in Memory Window */ + uint64_t moffset; }; =20 struct fuse_removemapping_in { /* An already open handle */ - uint64_t fh; + uint64_t fh; /* number of fuse_removemapping_one follows */ uint32_t count; }; =20 struct fuse_removemapping_one { - /* Offset into the dax to start the unmapping */ + /* Offset into the dax window start the unmapping */ uint64_t moffset; - /* Length of mapping required */ - uint64_t len; + /* Length of mapping required */ + uint64_t len; }; =20 #endif /* _LINUX_FUSE_H */ --=20 2.21.0 From nobody Sat Jun 1 07:37:17 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1564130079; cv=none; d=zoho.com; s=zohoarc; b=UlFeFsA/9IiPyPMWWVn9mAl5tiB56Kf/2g3+r2wB4cwvG0jSJ2ZAPIIVA7XU9m4XnMUh5pLSV+cDy9906x1bOyT97wn3UK4+HDt5/2RsyL6z/Zju4K264PGO2bda85mp1ysMxgzJsLOdZv4gPLEUxrUzUDt47KGzm4oRO0Af22E= ARC-Message-Signature: i=1; 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Fri, 26 Jul 2019 08:33:32 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org, virtio-fs@redhat.com Date: Fri, 26 Jul 2019 09:33:21 +0100 Message-Id: <20190726083322.13637-3-stefanha@redhat.com> In-Reply-To: <20190726083322.13637-1-stefanha@redhat.com> References: <20190726083322.13637-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.41]); Fri, 26 Jul 2019 08:33:37 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 2/3] virtiofsd: add map_alignment to fuse_kernel.h X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Dr. David Alan Gilbert" , Stefan Hajnoczi Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" This new FUSE_INIT field communicates the alignment constraint for FUSE_SETUPMAPPING/FUSE_REMOVEMAPPING. This feature will be implemented in the next commit. Signed-off-by: Stefan Hajnoczi --- contrib/virtiofsd/fuse_kernel.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/contrib/virtiofsd/fuse_kernel.h b/contrib/virtiofsd/fuse_kerne= l.h index 7722e0ac23..550fc3cb64 100644 --- a/contrib/virtiofsd/fuse_kernel.h +++ b/contrib/virtiofsd/fuse_kernel.h @@ -263,6 +263,9 @@ struct fuse_file_lock { * FUSE_MAX_PAGES: init_out.max_pages contains the max number of req pages * FUSE_CACHE_SYMLINKS: cache READLINK responses * FUSE_NO_OPENDIR_SUPPORT: kernel supports zero-message opendir + * FUSE_MAP_ALIGNMENT: init_out.map_alignment contains byte alignment for + * foffset and moffset fields in struct + * fuse_setupmapping_out and fuse_removemapping_one. */ #define FUSE_ASYNC_READ (1 << 0) #define FUSE_POSIX_LOCKS (1 << 1) @@ -289,6 +292,7 @@ struct fuse_file_lock { #define FUSE_MAX_PAGES (1 << 22) #define FUSE_CACHE_SYMLINKS (1 << 23) #define FUSE_NO_OPENDIR_SUPPORT (1 << 24) +#define FUSE_MAP_ALIGNMENT (1 << 25) =20 /** * CUSE INIT request/reply flags @@ -637,7 +641,8 @@ struct fuse_init_out { uint32_t time_gran; uint16_t max_pages; uint16_t padding; - uint32_t unused[8]; + uint32_t map_alignment; + uint32_t unused[7]; }; =20 #define CUSE_INIT_INFO_MAX 4096 --=20 2.21.0 From nobody Sat Jun 1 07:37:17 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1564130069; cv=none; d=zoho.com; s=zohoarc; b=IeWxL9nZihxA6MZBEPuvIjVWIL5+3awoTQTX711B45X9eSmdl1X1yuGlNTihammNoFeLvTeD3z15UQtP+ltomwYfcNN1YkL5EDfWq6wa5HaAixQfnUgvE6fHmi4YUVD2ODAVuIYAoUKIOe40vRXgLVsk/p04IUh3YUQzHKnBtf0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; 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Fri, 26 Jul 2019 08:33:38 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org, virtio-fs@redhat.com Date: Fri, 26 Jul 2019 09:33:22 +0100 Message-Id: <20190726083322.13637-4-stefanha@redhat.com> In-Reply-To: <20190726083322.13637-1-stefanha@redhat.com> References: <20190726083322.13637-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.46]); Fri, 26 Jul 2019 08:33:48 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 3/3] virtiofsd: implement FUSE_INIT map_alignment field X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Dr. David Alan Gilbert" , Stefan Hajnoczi Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Communicate the host page size to the FUSE client so that FUSE_SETUPMAPPING/FUSE_REMOVEMAPPING requests are aware of our alignment constraints. Signed-off-by: Stefan Hajnoczi --- contrib/virtiofsd/fuse_lowlevel.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/contrib/virtiofsd/fuse_lowlevel.c b/contrib/virtiofsd/fuse_low= level.c index dbbfda78bf..452dd6b2b0 100644 --- a/contrib/virtiofsd/fuse_lowlevel.c +++ b/contrib/virtiofsd/fuse_lowlevel.c @@ -2131,6 +2131,12 @@ static void do_init(fuse_req_t req, fuse_ino_t nodei= d, } if (se->conn.proto_minor >=3D 23) outarg.time_gran =3D se->conn.time_gran; + if (arg->flags & FUSE_MAP_ALIGNMENT) { + outarg.flags |=3D FUSE_MAP_ALIGNMENT; + + /* This constraint comes from mmap(2) and munmap(2) */ + outarg.map_alignment =3D sysconf(_SC_PAGE_SIZE); + } =20 if (se->debug) { fuse_debug(" INIT: %u.%u\n", outarg.major, outarg.minor); @@ -2144,6 +2150,8 @@ static void do_init(fuse_req_t req, fuse_ino_t nodeid, outarg.congestion_threshold); fuse_debug(" time_gran=3D%u\n", outarg.time_gran); + fuse_debug(" map_alignment=3D%u\n", + outarg.map_alignment); } if (arg->minor < 5) outargsize =3D FUSE_COMPAT_INIT_OUT_SIZE; --=20 2.21.0