Hello Mike, On 01/27/2018 10:59 AM, Mike Frysinger wrote: > Some of this content is moved from the mount(8) man page. > Style was based on proc(5) sections. Thanks. I've applied this. I also added some further details for the 'mpol' and 'huge' options, largely drawn from kernel Documentation files. Could you take a quick look at that new content? Is there any other text for mount(8) that should be imported to tmpfs(5)? Cheers, Michael > Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx> > --- > man5/tmpfs.5 | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++---- > 1 file changed, 73 insertions(+), 4 deletions(-) > > diff --git a/man5/tmpfs.5 b/man5/tmpfs.5 > index 5bdc8939c7f7..85f7ab5f26d1 100644 > --- a/man5/tmpfs.5 > +++ b/man5/tmpfs.5 > @@ -51,10 +51,6 @@ filesystem has the following properties: > The filesystem can employ swap space when physical memory pressure > demands it. > .IP * > -The > -.I size > -option can be used to specify an upper limit on the size of the filesystem. > -(The default size is half of the available RAM size.) > The filesystem consumes only as much physical memory and swap space > as is required to store the current contents of the filesystem. > .IP * > @@ -66,6 +62,79 @@ the filesystem size can be changed > If a > .B tmpfs > filesystem is unmounted, its contents are discarded (lost). > +.\" See mm/shmem.c:shmem_parse_options for options it supports. > +.SS Mount options > +The > +.B tmpfs > +filesystem supports the following mount options: > +.TP > +.BR size "=\fIbytes\fP" > +Specify an upper limit on the size of the filesystem. > +The size is given in bytes, and rounded up to entire pages. > + > +The size may have a > +.BR k , > +.BR m , > +or > +.B g > +suffix for Ki, Mi, Gi (binary kilo (kibi), binary mega (mebi) and binary giga > +(gibi)). > + > +The size may also have a % suffix to limit this instance to a percentage of > +physical RAM. > + > +The default, when neither size nor nr_blocks is specified, is size=50%. > +.TP > +.BR nr_blocks "=\fIblocks\fP" > +The same as > +.BR size , > +but in blocks of PAGE_CACHE_SIZE. > + > +Blocks may be specified with > +.BR k , > +.BR m , > +or > +.B g > +suffixes like > +.BR size , > +but not a % suffix. > +.TP > +.BR nr_inodes "=\fIinodes\fP" > +The maximum number of inodes for this instance. > +The default is half of the number of your physical RAM pages, or (on a > +machine with highmem) the number of lowmem RAM pages, whichever is smaller. > + > +Inodes may be specified with > +.BR k , > +.BR m , > +or > +.B g > +suffixes like > +.BR size , > +but not a % suffix. > +.TP > +.BR mode "=\fImode\fP" > +Set initial permissions of the root directory. > +.TP > +.BR gid "=\fIgid\fP (since Linux 2.5.7)" > +.\" Technically this is also in some version of Linux 2.4. > +.\" commit 099445b489625b80b1d6687c9b6072dbeaca4096 > +Set the initial group ID of the root directory. > +.TP > +.BR uid "=\fIuid\fP (since Linux 2.5.7)" > +.\" Technically this is also in some version of Linux 2.4. > +.\" commit 099445b489625b80b1d6687c9b6072dbeaca4096 > +Set the initial user ID of the root directory. > +.TP > +.BR huge "=\fI[never|always|within_size|advise|deny|force]\fR (since Linux 4.7.0)" > +.\" commit 5a6e75f8110c97e2a5488894d4e922187e6cb343 > +Set the huge table memory allocation policy for all files in this instance (if > +CONFIG_TRANSPARENT_HUGE_PAGECACHE is enabled). > +.TP > +.BR mpol "=\fI[default|prefer:Node|bind:NodeList|interleave|interleave:NodeList]\fR (since Linux 2.6.15)" > +.\" commit 7339ff8302fd70aabf5f1ae26e0c4905fa74a495 > +Set the NUMA memory allocation policy for all files in this instance (if > +CONFIG_NUMA is enabled). > .SH VERSIONS > The > .B tmpfs > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
