Xin LI 82aebf697c Add two new fcntls to enable/disable read-ahead: ...

- F_READAHEAD: specify the amount for sequential access.  The amount is
   specified in bytes and is rounded up to nearest block size.
 - F_RDAHEAD: Darwin compatible version that use 128KB as the sequential
   access size.

A third argument of zero disables the read-ahead behavior.

Please note that the read-ahead amount is also constrainted by sysctl
variable, vfs.read_max, which may need to be raised in order to better
utilize this feature.

Thanks Igor Sysoev for proposing the feature and submitting the original
version, and kib@ for his valuable comments.

Submitted by:	Igor Sysoev <is rambler-co ru>
Reviewed by:	kib@
MFC after:	1 month

2009-09-28 16:59:47 +00:00

..

bind

Add support for the build options that are currently in the port:

2009-06-01 21:58:59 +00:00

csu

Fix build when WITH_SSP is set explicitly.

2009-02-21 15:04:31 +00:00

libalias

Bump the version of all non-symbol-versioned shared libraries in

2009-07-19 17:25:24 +00:00

libarchive

Fiz /usr/bin/unzip: A bug deep in libarchive's read-ahead logic

2009-09-08 05:02:41 +00:00

libauditd

Merge OpenBSM alpha 4 from OpenBSM vendor branch to head, both

2008-12-31 11:12:24 +00:00

libautofs

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libbegemot

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libbluetooth

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libbsm

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libbsnmp

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libbz2

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2009-07-19 17:25:24 +00:00

libc

Add two new fcntls to enable/disable read-ahead:

2009-09-28 16:59:47 +00:00

libc_r

Use, in uncovered part, the END() macro in order to improve debugging.

2009-05-25 14:37:10 +00:00

libcalendar

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libcam

Separate the parallel scsi knowledge out of the core of the XPT, and

2009-07-10 08:18:08 +00:00

libcom_err

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libcompat

K&R -> ANSI

2009-06-23 23:20:09 +00:00

libcrypt

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2009-07-19 17:25:24 +00:00

libdevinfo

Use explicit int values for the device states in order to allow,

2009-09-15 16:59:52 +00:00

libdevstat

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2009-07-19 17:25:24 +00:00

libdisk

Disable a check on a disk size because it's too strict. This change is

2009-09-21 04:04:02 +00:00

libdwarf

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2009-07-19 17:25:24 +00:00

libedit

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2009-07-19 17:25:24 +00:00

libelf

Don't need to set symbol, default value is OK.

2009-03-12 04:44:09 +00:00

libexpat

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2009-07-19 17:25:24 +00:00

libfetch

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libftpio

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2009-07-19 17:25:24 +00:00

libgeom

Add links to libgeom(3) where appropriate.

2009-05-19 12:10:48 +00:00

libgpib

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libgssapi

Add an implementation of the RPCSEC_GSS authentication protocol for RPC. This

2008-08-06 14:02:05 +00:00

libipsec

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2009-07-19 17:25:24 +00:00

libipx

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libjail

Fixed markup (mostly) errors.

2009-09-21 08:30:52 +00:00

libkiconv

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2009-07-19 17:25:24 +00:00

libkse

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2009-07-19 17:25:24 +00:00

libkvm

cr_groups is no longer embedded in struct ucred and is instead stored

2009-09-08 19:37:59 +00:00

libmagic

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2009-07-19 17:25:24 +00:00

libmd

Remove reference to no longer existing document.

2009-01-09 11:45:13 +00:00

libmemstat

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2009-07-19 17:25:24 +00:00

libmilter

Switch libmilter from select(2) to poll(2) so milters are not limited

2008-02-17 05:14:47 +00:00

libmp

Rename all symbols in libmp(3) to mp_*, just like Solaris.

2009-02-26 21:43:15 +00:00

libncp

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libnetgraph

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libngatm

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libopie

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2009-07-19 17:25:24 +00:00

libpam

Prevents pam_lastlog from segfaulting on session close when tty is null.

2009-08-30 05:12:37 +00:00

libpcap

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libpmc

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2009-08-23 14:48:25 +00:00

libproc

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2009-07-19 17:25:24 +00:00

libradius

Add simple embedded RADIUS server support to libradius, by extending existing

2009-09-11 11:42:56 +00:00

librpcsec_gss

Implement support for RPCSEC_GSS authentication to both the NFS client

2008-11-03 10:38:00 +00:00

librpcsvc

Use ANSI function declarations in librpcsvc.

2009-02-26 20:32:11 +00:00

librt

atomic_fetchadd_int works on unsigned quantities - change

2008-08-15 21:08:48 +00:00

libsbuf

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libsdp

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libsm

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libsmb

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libsmdb

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libsmutil

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libstand

ANSIfy, whitespace and comment adjustments, to simplify comparing these

2009-09-13 21:51:01 +00:00

libtacplus

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2009-07-19 17:25:24 +00:00

libtelnet

Rename all symbols in libmp(3) to mp_*, just like Solaris.

2009-02-26 21:43:15 +00:00

libthr

don't report error if key was deleted.

2009-09-25 00:15:30 +00:00

libthread_db

Revert r181651, which changed the ABI, and use a temp variable instead.

2009-06-09 12:32:10 +00:00

libufs

Allow libufs(3) functions to operate on a regular file. This makes it possible to

2009-06-11 18:04:57 +00:00

libugidfw

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2009-07-19 17:25:24 +00:00

libusb

LibUSB v1.0:

2009-07-30 00:11:41 +00:00

libusbhid

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libutil

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libvgl

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libwrap

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liby

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libypclnt

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libz

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msun

Use the documented machine constraint for SSE registers.

2009-06-11 13:59:51 +00:00

ncurses

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2009-07-19 17:25:24 +00:00

Makefile

- Teach vesa(4) and dpms(4) about x86emu. [1]

2009-09-09 09:50:31 +00:00

Makefile.inc

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2009-07-19 17:25:24 +00:00