'\" t
.\" ** The above line should force tbl to be a preprocessor **
.\" Man page for inotail
.\"
.\" Copyright (c) 2006 Tobias Klauser <tklauser@distanz.ch>
.\"
.\" You may distribute under the terms of the GNU General Public
.\" License as specified in the file COPYING that comes with
.\" inotail.

.pc
.TH INOTAIL 1 "2006-08-13" "" "Inotify enhanced tail"
.SH NAME
inotail \- A fast and light version of tail using inotify
.SH SYNOPSIS
.B inotail
[OPTION]... [FILE]...
.SH DESCRIPTION
.B inotail
is a drop-in replacement for the 'tail' program found in the base
installation of every Linux/UNIX system. It makes use of the inotify
infrastructure in recent versions of the Linux kernel to speed up tailing files
in the follow mode (the '\-f' option). Currently inotail is not fully compatible
to neither POSIX or GNU tail but might be in the future. \fINote:\fR inotail
will not work on systems running kernels without Inotify. To enable Inotify ,
please set CONFIG_INOTIFY=y in your kernel configuration and recompile it.
.SH OPTIONS
.TP
.B \-c \fIN\fR
output the last N bytes
.TP
.B \-f
keep the file(s) open and print appended data as the file grows
.TP
.B \-n \fIN\fR
output the last N lines (default: 10)
.TP
.B \-v
print headers with file names
.TP
.B \-h
show help and exit
.TP
.B \-V
show inotail version and exit
.SH AUTHOR
.PP
Written by Tobias Klauser
<tklauser@distanz.ch>
.SH SEE ALSO
.PP
.BR tail(1),
.BR inotify(7)
ext plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/uapi?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>uapi</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/uapi/misc?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>misc</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Steven Rostedt (VMware) &lt;rostedt@goodmis.org&gt;</td><td class='right'>2017-01-30 19:27:10 -0500</td></tr>
<tr><th>committer</th><td>Steven Rostedt (VMware) &lt;rostedt@goodmis.org&gt;</td><td class='right'>2017-01-31 09:13:49 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/uapi/misc?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>79c6f448c8b79c321e4a1f31f98194e4f6b6cae7</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/uapi/misc?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>370efda701f03cccf21e02bb1fdd3b852547d75c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/uapi/misc?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>include/uapi/misc</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/uapi/misc?id=0c744ea4f77d72b3dcebb7a8f2684633ec79be88'>0c744ea4f77d72b3dcebb7a8f2684633ec79be88</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/uapi/misc?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7&amp;id2=0c744ea4f77d72b3dcebb7a8f2684633ec79be88'>diff</a>)</td></tr></table>
<div class='commit-subject'>tracing: Fix hwlat kthread migration</div><div class='commit-msg'>The hwlat tracer creates a kernel thread at start of the tracer. It is
pinned to a single CPU and will move to the next CPU after each period of
running. If the user modifies the migration thread's affinity, it will not
change after that happens.

The original code created the thread at the first instance it was called,
but later was changed to destroy the thread after the tracer was finished,
and would not be created until the next instance of the tracer was
established. The code that initialized the affinity was only called on the
initial instantiation of the tracer. After that, it was not initialized, and
the previous affinity did not match the current newly created one, making
it appear that the user modified the thread's affinity when it did not, and
the thread failed to migrate again.

Cc: stable@vger.kernel.org
Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs")
Signed-off-by: Steven Rostedt (VMware) &lt;rostedt@goodmis.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'>Diffstat</a> (limited to 'include/uapi/misc')</div><table summary='diffstat' class='diffstat'>