From patchwork Tue Jan 21 12:23:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Dr. David Alan Gilbert" X-Patchwork-Id: 11343797 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 25BA51398 for ; Tue, 21 Jan 2020 13:04:44 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DF72C2051A for ; Tue, 21 Jan 2020 13:04:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="fJxW8DiP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DF72C2051A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:53518 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ittD0-00049K-LI for patchwork-qemu-devel@patchwork.kernel.org; Tue, 21 Jan 2020 08:04:42 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:52153) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1itsfW-0001Mv-FF for qemu-devel@nongnu.org; Tue, 21 Jan 2020 07:30:10 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1itsfS-0003uq-Cv for qemu-devel@nongnu.org; Tue, 21 Jan 2020 07:30:06 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:43238 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1itsfS-0003uF-70 for qemu-devel@nongnu.org; Tue, 21 Jan 2020 07:30:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1579609800; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xVXymLArBER4SqdArI/Kx/xiz+UkOVcLFsdwL6s5d/c=; b=fJxW8DiPr6j4PlCwziv6SxCYuCJ36oFjeEoMDMNjEfIdmlTMU4YScbAkGSXGopThQkxwvg njO/pxFR4xCf81WEg75o1OJt05yGvC6A4Be4RDMhGBOtwheuwpkxmLRA7yaPTfrlkfSQOk J2LmgSb6vS7rF1XDbYA3eUXCedNvYZE= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-429-OxKvsgMWMQ-j8uzKvjsWUg-1; Tue, 21 Jan 2020 07:29:56 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id B2C5C10120A1; Tue, 21 Jan 2020 12:29:55 +0000 (UTC) Received: from dgilbert-t580.localhost (unknown [10.36.118.32]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2478D610B0; Tue, 21 Jan 2020 12:29:41 +0000 (UTC) From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, stefanha@redhat.com, vgoyal@redhat.com, berrange@redhat.com, slp@redhat.com, philmd@redhat.com Subject: [PATCH v2 060/109] virtiofsd: print log only when priority is high enough Date: Tue, 21 Jan 2020 12:23:44 +0000 Message-Id: <20200121122433.50803-61-dgilbert@redhat.com> In-Reply-To: <20200121122433.50803-1-dgilbert@redhat.com> References: <20200121122433.50803-1-dgilbert@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-MC-Unique: OxKvsgMWMQ-j8uzKvjsWUg-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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: , Cc: m.mizuma@jp.fujitsu.com, misono.tomohiro@jp.fujitsu.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: Eryu Guan Introduce "-o log_level=" command line option to specify current log level (priority), valid values are "debug info warn err", e.g. ./virtiofsd -o log_level=debug ... So only log priority higher than "debug" will be printed to stderr/syslog. And the default level is info. The "-o debug"/"-d" options are kept, and imply debug log level. Signed-off-by: Eryu Guan dgilbert: Reworked for libfuse's log_func Signed-off-by: Dr. David Alan Gilbert with fix by: Signed-off-by: Xiao Yang Reviewed-by: Daniel P. Berrangé --- tools/virtiofsd/fuse_lowlevel.c | 75 ++++++++------------ tools/virtiofsd/fuse_lowlevel.h | 1 + tools/virtiofsd/helper.c | 8 ++- tools/virtiofsd/passthrough_ll.c | 118 +++++++++++++------------------ 4 files changed, 87 insertions(+), 115 deletions(-) diff --git a/tools/virtiofsd/fuse_lowlevel.c b/tools/virtiofsd/fuse_lowlevel.c index 765d700c3f..da2e618dd1 100644 --- a/tools/virtiofsd/fuse_lowlevel.c +++ b/tools/virtiofsd/fuse_lowlevel.c @@ -157,19 +157,17 @@ static int fuse_send_msg(struct fuse_session *se, struct fuse_chan *ch, struct fuse_out_header *out = iov[0].iov_base; out->len = iov_length(iov, count); - if (se->debug) { - if (out->unique == 0) { - fuse_log(FUSE_LOG_DEBUG, "NOTIFY: code=%d length=%u\n", out->error, - out->len); - } else if (out->error) { - fuse_log(FUSE_LOG_DEBUG, - " unique: %llu, error: %i (%s), outsize: %i\n", - (unsigned long long)out->unique, out->error, - strerror(-out->error), out->len); - } else { - fuse_log(FUSE_LOG_DEBUG, " unique: %llu, success, outsize: %i\n", - (unsigned long long)out->unique, out->len); - } + if (out->unique == 0) { + fuse_log(FUSE_LOG_DEBUG, "NOTIFY: code=%d length=%u\n", out->error, + out->len); + } else if (out->error) { + fuse_log(FUSE_LOG_DEBUG, + " unique: %llu, error: %i (%s), outsize: %i\n", + (unsigned long long)out->unique, out->error, + strerror(-out->error), out->len); + } else { + fuse_log(FUSE_LOG_DEBUG, " unique: %llu, success, outsize: %i\n", + (unsigned long long)out->unique, out->len); } if (fuse_lowlevel_is_virtio(se)) { @@ -1663,10 +1661,8 @@ static void do_interrupt(fuse_req_t req, fuse_ino_t nodeid, return; } - if (se->debug) { - fuse_log(FUSE_LOG_DEBUG, "INTERRUPT: %llu\n", - (unsigned long long)arg->unique); - } + fuse_log(FUSE_LOG_DEBUG, "INTERRUPT: %llu\n", + (unsigned long long)arg->unique); req->u.i.unique = arg->unique; @@ -1902,13 +1898,10 @@ static void do_init(fuse_req_t req, fuse_ino_t nodeid, } } - if (se->debug) { - fuse_log(FUSE_LOG_DEBUG, "INIT: %u.%u\n", arg->major, arg->minor); - if (arg->major == 7 && arg->minor >= 6) { - fuse_log(FUSE_LOG_DEBUG, "flags=0x%08x\n", arg->flags); - fuse_log(FUSE_LOG_DEBUG, "max_readahead=0x%08x\n", - arg->max_readahead); - } + fuse_log(FUSE_LOG_DEBUG, "INIT: %u.%u\n", arg->major, arg->minor); + if (arg->major == 7 && arg->minor >= 6) { + fuse_log(FUSE_LOG_DEBUG, "flags=0x%08x\n", arg->flags); + fuse_log(FUSE_LOG_DEBUG, "max_readahead=0x%08x\n", arg->max_readahead); } se->conn.proto_major = arg->major; se->conn.proto_minor = arg->minor; @@ -2117,19 +2110,14 @@ static void do_init(fuse_req_t req, fuse_ino_t nodeid, outarg.congestion_threshold = se->conn.congestion_threshold; outarg.time_gran = se->conn.time_gran; - if (se->debug) { - fuse_log(FUSE_LOG_DEBUG, " INIT: %u.%u\n", outarg.major, - outarg.minor); - fuse_log(FUSE_LOG_DEBUG, " flags=0x%08x\n", outarg.flags); - fuse_log(FUSE_LOG_DEBUG, " max_readahead=0x%08x\n", - outarg.max_readahead); - fuse_log(FUSE_LOG_DEBUG, " max_write=0x%08x\n", outarg.max_write); - fuse_log(FUSE_LOG_DEBUG, " max_background=%i\n", - outarg.max_background); - fuse_log(FUSE_LOG_DEBUG, " congestion_threshold=%i\n", - outarg.congestion_threshold); - fuse_log(FUSE_LOG_DEBUG, " time_gran=%u\n", outarg.time_gran); - } + fuse_log(FUSE_LOG_DEBUG, " INIT: %u.%u\n", outarg.major, outarg.minor); + fuse_log(FUSE_LOG_DEBUG, " flags=0x%08x\n", outarg.flags); + fuse_log(FUSE_LOG_DEBUG, " max_readahead=0x%08x\n", outarg.max_readahead); + fuse_log(FUSE_LOG_DEBUG, " max_write=0x%08x\n", outarg.max_write); + fuse_log(FUSE_LOG_DEBUG, " max_background=%i\n", outarg.max_background); + fuse_log(FUSE_LOG_DEBUG, " congestion_threshold=%i\n", + outarg.congestion_threshold); + fuse_log(FUSE_LOG_DEBUG, " time_gran=%u\n", outarg.time_gran); send_reply_ok(req, &outarg, outargsize); } @@ -2409,14 +2397,11 @@ void fuse_session_process_buf_int(struct fuse_session *se, in = fuse_mbuf_iter_advance(&iter, sizeof(*in)); assert(in); /* caller guarantees the input buffer is large enough */ - if (se->debug) { - fuse_log(FUSE_LOG_DEBUG, - "unique: %llu, opcode: %s (%i), nodeid: %llu, insize: %zu, " - "pid: %u\n", - (unsigned long long)in->unique, - opname((enum fuse_opcode)in->opcode), in->opcode, - (unsigned long long)in->nodeid, buf->size, in->pid); - } + fuse_log( + FUSE_LOG_DEBUG, + "unique: %llu, opcode: %s (%i), nodeid: %llu, insize: %zu, pid: %u\n", + (unsigned long long)in->unique, opname((enum fuse_opcode)in->opcode), + in->opcode, (unsigned long long)in->nodeid, buf->size, in->pid); req = fuse_ll_alloc_req(se); if (req == NULL) { diff --git a/tools/virtiofsd/fuse_lowlevel.h b/tools/virtiofsd/fuse_lowlevel.h index 300d38b3a4..3a7213f42f 100644 --- a/tools/virtiofsd/fuse_lowlevel.h +++ b/tools/virtiofsd/fuse_lowlevel.h @@ -1828,6 +1828,7 @@ struct fuse_cmdline_opts { int show_help; int print_capabilities; int syslog; + int log_level; unsigned int max_idle_threads; }; diff --git a/tools/virtiofsd/helper.c b/tools/virtiofsd/helper.c index bac3fd51ea..c8cb88afdd 100644 --- a/tools/virtiofsd/helper.c +++ b/tools/virtiofsd/helper.c @@ -33,7 +33,6 @@ t, offsetof(struct fuse_cmdline_opts, p), v \ } - static const struct fuse_opt fuse_helper_opts[] = { FUSE_HELPER_OPT("-h", show_help), FUSE_HELPER_OPT("--help", show_help), @@ -55,6 +54,10 @@ static const struct fuse_opt fuse_helper_opts[] = { FUSE_OPT_KEY("subtype=", FUSE_OPT_KEY_KEEP), FUSE_HELPER_OPT("max_idle_threads=%u", max_idle_threads), FUSE_HELPER_OPT("--syslog", syslog), + FUSE_HELPER_OPT_VALUE("log_level=debug", log_level, FUSE_LOG_DEBUG), + FUSE_HELPER_OPT_VALUE("log_level=info", log_level, FUSE_LOG_INFO), + FUSE_HELPER_OPT_VALUE("log_level=warn", log_level, FUSE_LOG_WARNING), + FUSE_HELPER_OPT_VALUE("log_level=err", log_level, FUSE_LOG_ERR), FUSE_OPT_END }; @@ -143,6 +146,9 @@ void fuse_cmdline_help(void) " -f foreground operation\n" " --daemonize run in background\n" " -s disable multi-threaded operation\n" + " -o log_level= log level, default to \"info\"\n" + " level could be one of \"debug, " + "info, warn, err\"\n" " -o max_idle_threads the maximum number of idle worker " "threads\n" " allowed (default: 10)\n" diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c index 18d09e39b0..20b5a242cb 100644 --- a/tools/virtiofsd/passthrough_ll.c +++ b/tools/virtiofsd/passthrough_ll.c @@ -36,6 +36,7 @@ */ #include "fuse_virtio.h" +#include "fuse_log.h" #include "fuse_lowlevel.h" #include #include @@ -139,6 +140,7 @@ static const struct fuse_opt lo_opts[] = { FUSE_OPT_END }; static bool use_syslog = false; +static int current_log_level; static void unref_inode(struct lo_data *lo, struct lo_inode *inode, uint64_t n); @@ -457,11 +459,6 @@ static int lo_fd(fuse_req_t req, fuse_ino_t ino) return inode ? inode->fd : -1; } -static bool lo_debug(fuse_req_t req) -{ - return lo_data(req)->debug != 0; -} - static void lo_init(void *userdata, struct fuse_conn_info *conn) { struct lo_data *lo = (struct lo_data *)userdata; @@ -471,15 +468,11 @@ static void lo_init(void *userdata, struct fuse_conn_info *conn) } if (lo->writeback && conn->capable & FUSE_CAP_WRITEBACK_CACHE) { - if (lo->debug) { - fuse_log(FUSE_LOG_DEBUG, "lo_init: activating writeback\n"); - } + fuse_log(FUSE_LOG_DEBUG, "lo_init: activating writeback\n"); conn->want |= FUSE_CAP_WRITEBACK_CACHE; } if (lo->flock && conn->capable & FUSE_CAP_FLOCK_LOCKS) { - if (lo->debug) { - fuse_log(FUSE_LOG_DEBUG, "lo_init: activating flock locks\n"); - } + fuse_log(FUSE_LOG_DEBUG, "lo_init: activating flock locks\n"); conn->want |= FUSE_CAP_FLOCK_LOCKS; } } @@ -822,10 +815,8 @@ static int lo_do_lookup(fuse_req_t req, fuse_ino_t parent, const char *name, } e->ino = inode->fuse_ino; - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, " %lli/%s -> %lli\n", - (unsigned long long)parent, name, (unsigned long long)e->ino); - } + fuse_log(FUSE_LOG_DEBUG, " %lli/%s -> %lli\n", (unsigned long long)parent, + name, (unsigned long long)e->ino); return 0; @@ -842,10 +833,8 @@ static void lo_lookup(fuse_req_t req, fuse_ino_t parent, const char *name) struct fuse_entry_param e; int err; - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, "lo_lookup(parent=%" PRIu64 ", name=%s)\n", - parent, name); - } + fuse_log(FUSE_LOG_DEBUG, "lo_lookup(parent=%" PRIu64 ", name=%s)\n", parent, + name); /* * Don't use is_safe_path_component(), allow "." and ".." for NFS export @@ -970,10 +959,8 @@ static void lo_mknod_symlink(fuse_req_t req, fuse_ino_t parent, goto out; } - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, " %lli/%s -> %lli\n", - (unsigned long long)parent, name, (unsigned long long)e.ino); - } + fuse_log(FUSE_LOG_DEBUG, " %lli/%s -> %lli\n", (unsigned long long)parent, + name, (unsigned long long)e.ino); fuse_reply_entry(req, &e); return; @@ -1073,10 +1060,8 @@ static void lo_link(fuse_req_t req, fuse_ino_t ino, fuse_ino_t parent, pthread_mutex_unlock(&lo->mutex); e.ino = inode->fuse_ino; - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, " %lli/%s -> %lli\n", - (unsigned long long)parent, name, (unsigned long long)e.ino); - } + fuse_log(FUSE_LOG_DEBUG, " %lli/%s -> %lli\n", (unsigned long long)parent, + name, (unsigned long long)e.ino); fuse_reply_entry(req, &e); return; @@ -1170,11 +1155,9 @@ static void lo_forget_one(fuse_req_t req, fuse_ino_t ino, uint64_t nlookup) return; } - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, " forget %lli %lli -%lli\n", - (unsigned long long)ino, (unsigned long long)inode->refcount, - (unsigned long long)nlookup); - } + fuse_log(FUSE_LOG_DEBUG, " forget %lli %lli -%lli\n", + (unsigned long long)ino, (unsigned long long)inode->refcount, + (unsigned long long)nlookup); unref_inode(lo, inode, nlookup); } @@ -1444,10 +1427,8 @@ static void lo_create(fuse_req_t req, fuse_ino_t parent, const char *name, int err; struct lo_cred old = {}; - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, "lo_create(parent=%" PRIu64 ", name=%s)\n", - parent, name); - } + fuse_log(FUSE_LOG_DEBUG, "lo_create(parent=%" PRIu64 ", name=%s)\n", parent, + name); if (!is_safe_path_component(name)) { fuse_reply_err(req, EINVAL); @@ -1524,10 +1505,8 @@ static void lo_open(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi) char buf[64]; struct lo_data *lo = lo_data(req); - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, "lo_open(ino=%" PRIu64 ", flags=%d)\n", ino, - fi->flags); - } + fuse_log(FUSE_LOG_DEBUG, "lo_open(ino=%" PRIu64 ", flags=%d)\n", ino, + fi->flags); /* * With writeback cache, kernel may send read requests even @@ -1643,12 +1622,10 @@ static void lo_read(fuse_req_t req, fuse_ino_t ino, size_t size, off_t offset, { struct fuse_bufvec buf = FUSE_BUFVEC_INIT(size); - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, - "lo_read(ino=%" PRIu64 ", size=%zd, " - "off=%lu)\n", - ino, size, (unsigned long)offset); - } + fuse_log(FUSE_LOG_DEBUG, + "lo_read(ino=%" PRIu64 ", size=%zd, " + "off=%lu)\n", + ino, size, (unsigned long)offset); buf.buf[0].flags = FUSE_BUF_IS_FD | FUSE_BUF_FD_SEEK; buf.buf[0].fd = lo_fi_fd(req, fi); @@ -1670,11 +1647,9 @@ static void lo_write_buf(fuse_req_t req, fuse_ino_t ino, out_buf.buf[0].fd = lo_fi_fd(req, fi); out_buf.buf[0].pos = off; - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, - "lo_write(ino=%" PRIu64 ", size=%zd, off=%lu)\n", ino, - out_buf.buf[0].size, (unsigned long)off); - } + fuse_log(FUSE_LOG_DEBUG, + "lo_write_buf(ino=%" PRIu64 ", size=%zd, off=%lu)\n", ino, + out_buf.buf[0].size, (unsigned long)off); /* * If kill_priv is set, drop CAP_FSETID which should lead to kernel @@ -1773,11 +1748,8 @@ static void lo_getxattr(fuse_req_t req, fuse_ino_t ino, const char *name, goto out; } - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, - "lo_getxattr(ino=%" PRIu64 ", name=%s size=%zd)\n", ino, name, - size); - } + fuse_log(FUSE_LOG_DEBUG, "lo_getxattr(ino=%" PRIu64 ", name=%s size=%zd)\n", + ino, name, size); if (inode->is_symlink) { /* Sorry, no race free way to getxattr on symlink. */ @@ -1851,10 +1823,8 @@ static void lo_listxattr(fuse_req_t req, fuse_ino_t ino, size_t size) goto out; } - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, "lo_listxattr(ino=%" PRIu64 ", size=%zd)\n", - ino, size); - } + fuse_log(FUSE_LOG_DEBUG, "lo_listxattr(ino=%" PRIu64 ", size=%zd)\n", ino, + size); if (inode->is_symlink) { /* Sorry, no race free way to listxattr on symlink. */ @@ -1928,11 +1898,8 @@ static void lo_setxattr(fuse_req_t req, fuse_ino_t ino, const char *name, goto out; } - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, - "lo_setxattr(ino=%" PRIu64 ", name=%s value=%s size=%zd)\n", - ino, name, value, size); - } + fuse_log(FUSE_LOG_DEBUG, "lo_setxattr(ino=%" PRIu64 + ", name=%s value=%s size=%zd)\n", ino, name, value, size); if (inode->is_symlink) { /* Sorry, no race free way to setxattr on symlink. */ @@ -1977,10 +1944,8 @@ static void lo_removexattr(fuse_req_t req, fuse_ino_t ino, const char *name) goto out; } - if (lo_debug(req)) { - fuse_log(FUSE_LOG_DEBUG, "lo_removexattr(ino=%" PRIu64 ", name=%s)\n", - ino, name); - } + fuse_log(FUSE_LOG_DEBUG, "lo_removexattr(ino=%" PRIu64 ", name=%s)\n", ino, + name); if (inode->is_symlink) { /* Sorry, no race free way to setxattr on symlink. */ @@ -2302,6 +2267,10 @@ static void setup_nofile_rlimit(void) static void log_func(enum fuse_log_level level, const char *fmt, va_list ap) { + if (current_log_level < level) { + return; + } + if (use_syslog) { int priority = LOG_ERR; switch (level) { @@ -2400,8 +2369,19 @@ int main(int argc, char *argv[]) return 1; } + /* + * log_level is 0 if not configured via cmd options (0 is LOG_EMERG, + * and we don't use this log level). + */ + if (opts.log_level != 0) { + current_log_level = opts.log_level; + } lo.debug = opts.debug; + if (lo.debug) { + current_log_level = FUSE_LOG_DEBUG; + } lo.root.refcount = 2; + if (lo.source) { struct stat stat; int res;