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Tue, 3 Mar 2020 15:16:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1583248573; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6mU8s4ys1nt2ELzadWGQ2bGhafm8XTPU7jusFyudg6w=; b=UY6V8Zhi21giDjYxRFuZ0kSmdvLWmpj09iwknkn7jqIescrmwVHaHNv7Z4Mc04D6fOeb/X QaGq17WVU3Moh1LYUm62Nw1sZtka3rDR45HF8f29vfyXULEyqrnEy6ZoABAVJDtla57JwI pfeAwdwjEoz0jjCPZyyqd5Xw8JeJ44Q= X-MC-Unique: phz6DBJyMze_0BI62iekPg-1 From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org Subject: [PULL 1/2] virtiofsd: passthrough_ll: cleanup getxattr/listxattr Date: Tue, 3 Mar 2020 15:16:05 +0000 Message-Id: <20200303151606.108736-2-dgilbert@redhat.com> In-Reply-To: <20200303151606.108736-1-dgilbert@redhat.com> References: <20200303151606.108736-1-dgilbert@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) Content-Type: text/plain; charset="utf-8" From: Misono Tomohiro This is a cleanup patch to simplify the following xattr fix and there is no functional changes. - Move memory allocation to head of the function - Unify fgetxattr/flistxattr call for both size =3D=3D 0 and size !=3D 0 case - Remove redundant lo_inode_put call in error path (Note: second call is ignored now since @inode is already NULL) Signed-off-by: Misono Tomohiro Message-Id: <20200227055927.24566-2-misono.tomohiro@jp.fujitsu.com> Acked-by: Vivek Goyal Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Dr. David Alan Gilbert --- tools/virtiofsd/passthrough_ll.c | 54 +++++++++++++------------------- 1 file changed, 22 insertions(+), 32 deletions(-) diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough= _ll.c index 02ff01fad0..4690a97947 100644 --- a/tools/virtiofsd/passthrough_ll.c +++ b/tools/virtiofsd/passthrough_ll.c @@ -2195,34 +2195,30 @@ static void lo_getxattr(fuse_req_t req, fuse_ino_t = ino, const char *name, goto out; } =20 + if (size) { + value =3D malloc(size); + if (!value) { + goto out_err; + } + } + sprintf(procname, "%i", inode->fd); fd =3D openat(lo->proc_self_fd, procname, O_RDONLY); if (fd < 0) { goto out_err; } =20 + ret =3D fgetxattr(fd, name, value, size); + if (ret =3D=3D -1) { + goto out_err; + } if (size) { - value =3D malloc(size); - if (!value) { - goto out_err; - } - - ret =3D fgetxattr(fd, name, value, size); - if (ret =3D=3D -1) { - goto out_err; - } saverr =3D 0; if (ret =3D=3D 0) { goto out; } - fuse_reply_buf(req, value, ret); } else { - ret =3D fgetxattr(fd, name, NULL, 0); - if (ret =3D=3D -1) { - goto out_err; - } - fuse_reply_xattr(req, ret); } out_free: @@ -2238,7 +2234,6 @@ out_free: out_err: saverr =3D errno; out: - lo_inode_put(lo, &inode); fuse_reply_err(req, saverr); goto out_free; } @@ -2273,34 +2268,30 @@ static void lo_listxattr(fuse_req_t req, fuse_ino_t= ino, size_t size) goto out; } =20 + if (size) { + value =3D malloc(size); + if (!value) { + goto out_err; + } + } + sprintf(procname, "%i", inode->fd); fd =3D openat(lo->proc_self_fd, procname, O_RDONLY); if (fd < 0) { goto out_err; } =20 + ret =3D flistxattr(fd, value, size); + if (ret =3D=3D -1) { + goto out_err; + } if (size) { - value =3D malloc(size); - if (!value) { - goto out_err; - } - - ret =3D flistxattr(fd, value, size); - if (ret =3D=3D -1) { - goto out_err; - } saverr =3D 0; if (ret =3D=3D 0) { goto out; } - fuse_reply_buf(req, value, ret); } else { - ret =3D flistxattr(fd, NULL, 0); - if (ret =3D=3D -1) { - goto out_err; - } - fuse_reply_xattr(req, ret); } out_free: @@ -2316,7 +2307,6 @@ out_free: out_err: saverr =3D errno; out: - lo_inode_put(lo, &inode); fuse_reply_err(req, saverr); goto out_free; } --=20 2.24.1