From: Steven Rostedt <rostedt@goodmis.org>
To: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: linux-kernel@vger.kernel.org,
Alexander Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Hellwig <hch@lst.de>,
Dan Williams <dan.j.williams@intel.com>,
Dave Chinner <david@fromorbit.com>,
Ingo Molnar <mingo@redhat.com>, Jan Kara <jack@suse.cz>,
Matthew Wilcox <mawilcox@microsoft.com>,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-nvdimm@lists.01.org
Subject: Re: [PATCH v3 1/5] tracing: add __print_flags_u64()
Date: Thu, 1 Dec 2016 11:53:46 -0500 [thread overview]
Message-ID: <20161201115346.1ba16485@gandalf.local.home> (raw)
In-Reply-To: <1480610271-23699-2-git-send-email-ross.zwisler@linux.intel.com>
On Thu, 1 Dec 2016 09:37:47 -0700
Ross Zwisler <ross.zwisler@linux.intel.com> wrote:
> Add __print_flags_u64() and the helper trace_print_flags_seq_u64() in the
> same spirit as __print_symbolic_u64() and trace_print_symbols_seq_u64().
> These functions allow us to print symbols associated with flags that are 64
> bits wide even on 32 bit machines.
>
> These will be used by the DAX code so that we can print the flags set in a
> pfn_t such as PFN_SG_CHAIN, PFN_SG_LAST, PFN_DEV and PFN_MAP.
>
> Without this new function I was getting errors like the following when
> compiling for i386:
>
> ./include/linux/pfn_t.h:13:22: warning: large integer implicitly truncated
> to unsigned type [-Woverflow]
> #define PFN_SG_CHAIN (1ULL << (BITS_PER_LONG_LONG - 1))
> ^
>
> Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
-- Steve
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next prev parent reply other threads:[~2016-12-01 16:53 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-01 16:37 [PATCH v3 0/5] introduce DAX tracepoint support Ross Zwisler
2016-12-01 16:37 ` [PATCH v3 1/5] tracing: add __print_flags_u64() Ross Zwisler
2016-12-01 16:53 ` Steven Rostedt [this message]
2016-12-01 16:37 ` [PATCH v3 2/5] dax: add tracepoint infrastructure, PMD tracing Ross Zwisler
2016-12-01 16:54 ` Steven Rostedt
2016-12-01 16:37 ` [PATCH v3 3/5] dax: update MAINTAINERS entries for FS DAX Ross Zwisler
2016-12-01 16:37 ` [PATCH v3 4/5] dax: add tracepoints to dax_pmd_load_hole() Ross Zwisler
2016-12-01 16:56 ` Steven Rostedt
2016-12-01 16:37 ` [PATCH v3 5/5] dax: add tracepoints to dax_pmd_insert_mapping() Ross Zwisler
2016-12-01 16:56 ` Steven Rostedt
2016-12-19 16:46 ` [PATCH v3 0/5] introduce DAX tracepoint support Ross Zwisler
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