freebsd-skq/lib/libc
delphij 79f2f8c774 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
..
amd64 Mark uname(), getdomainname() and setdomainname() with COMPAT_FREEBSD4. 2008-11-09 10:45:13 +00:00
arm Remove unneeded stdlib directories. 2009-06-23 14:11:41 +00:00
compat-43 Use C comments since we now preprocess these files with CPP. 2007-04-29 14:05:22 +00:00
db Consider flag == 0 as the same of flag == R_NEXT. This change will restore 2009-08-24 23:44:07 +00:00
gdtoa Unbreak the build for arm and powerpc. 2008-04-12 14:53:52 +00:00
gen Correct a section name; specifically, "AUTHOR" should be "AUTHORS". [1] 2009-09-21 18:02:02 +00:00
gmon Remove .mcount from gmon's Symbol map and add it to the appropriate 2007-05-13 14:16:55 +00:00
i386 Remove hand-written labs/abs implementations. GCC is smart enough. 2009-06-23 09:04:59 +00:00
ia64 Remove unneeded stdlib directories. 2009-06-23 14:11:41 +00:00
include Change the ABI of some of the structures used by the SYSV IPC API: 2009-06-24 21:10:52 +00:00
inet Merge the resolver part of BIND 9.4.3 into HEAD. 2008-12-14 19:39:53 +00:00
isc Merge BIND 9.4.1 into main chunk. 2007-06-03 17:20:27 +00:00
locale Let the armchair generals handle this one. 2009-09-04 07:44:58 +00:00
mips Remove unneeded stdlib directories. 2009-06-23 14:11:41 +00:00
nameser This commit was generated by cvs2svn to compensate for changes in r174223, 2007-12-03 15:07:58 +00:00
net Revert r196976, now that <machine/param.h> behaves predictably. 2009-09-09 10:31:20 +00:00
nls - Add Galician NLS catalog 2009-09-27 13:16:38 +00:00
posix1e Fix regression introduced with NFSv4 ACL support - make acl_to_text(3) 2009-09-01 18:30:17 +00:00
powerpc Mark uname(), getdomainname() and setdomainname() with COMPAT_FREEBSD4. 2008-11-09 10:45:13 +00:00
quad Fix a typo that prevented the quad symbols from being exported 2007-07-06 13:42:24 +00:00
regex Fix an off-by-one error in the marking of the O_CH operator 2009-09-16 06:32:23 +00:00
resolv Add an option to enforce strict RFC 1034 compliance. 2009-05-29 07:34:54 +00:00
rpc Lock around access to nc_file and netconfig_info ("ni"). The RPC 2009-06-24 23:17:16 +00:00
softfloat Reflect license change from NetBSD. 2009-03-10 21:13:26 +00:00
sparc64 Remove unneeded stdlib directories. 2009-06-23 14:11:41 +00:00
stdio Make the description of `b' a little better. 2009-09-09 19:38:19 +00:00
stdlib Make malloc(3) superpage aware. Specifically, if getpagesizes(3) returns 2009-09-26 18:20:40 +00:00
stdtime Improve the way failure of pthread_key_create() gets detected. 2009-09-14 11:20:45 +00:00
string Correct the information about when the respective functionality first 2009-04-23 08:37:56 +00:00
sys Add two new fcntls to enable/disable read-ahead: 2009-09-28 16:59:47 +00:00
uuid Move uuid_enc_le, uuid_dec_le, uuid_enc_be and uuid_dec_be symbols 2008-09-19 15:52:56 +00:00
xdr Implement support for RPCSEC_GSS authentication to both the NFS client 2008-11-03 10:38:00 +00:00
yp Fix some "in in" typos in comments. 2008-03-26 07:32:08 +00:00
Makefile Second attempt at eliminating .text relocations in shared libraries 2009-07-14 21:19:13 +00:00
Versions.def Bump our namespace version for 9.0. 2009-09-13 13:15:36 +00:00