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Fix the #ifdef VFS_AIO to not compile a whole bunch of unused stuff in the

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!VFS_AIO case.  Lots of things have hooks into here (kqueue, exit(),
 sockets, etc), I elected to keep the external interfaces the same
 rather than spread more #ifdefs around the kernel.
This commit is contained in:
Peter Wemm 2000-07-28 23:10:10 +00:00
parent 58c9d62373
commit 5dec52bada
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=63983
1 changed files with 34 additions and 7 deletions
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41
sys/kern/vfs_aio.c
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@ -51,6 +51,8 @@
#include <machine/limits.h>
#include "opt_vfs_aio.h"
#ifdef VFS_AIO
static long jobrefid;
#define JOBST_NULL 0x0
@ -212,13 +214,6 @@ static int aio_fphysio(struct proc *p, struct aiocblist *aiocbe, int type);
static int aio_qphysio(struct proc *p, struct aiocblist *iocb);
static void aio_daemon(void *uproc);
static int filt_aioattach(struct knote *kn);
static void filt_aiodetach(struct knote *kn);
static int filt_aio(struct knote *kn, long hint);
struct filterops aio_filtops =
{ 0, filt_aioattach, filt_aiodetach, filt_aio };
SYSINIT(aio, SI_SUB_VFS, SI_ORDER_ANY, aio_onceonly, NULL);
static vm_zone_t kaio_zone = 0, aiop_zone = 0, aiocb_zone = 0, aiol_zone = 0;
@ -379,6 +374,7 @@ aio_free_entry(struct aiocblist *aiocbe)
aiocbe->jobstate = JOBST_NULL;
return 0;
}
#endif /* VFS_AIO */
/*
* Rundown the jobs for a given process.
@ -386,6 +382,9 @@ aio_free_entry(struct aiocblist *aiocbe)
void
aio_proc_rundown(struct proc *p)
{
#ifndef VFS_AIO
return;
#else
int s;
struct kaioinfo *ki;
struct aio_liojob *lj, *ljn;
@ -500,8 +499,10 @@ aio_proc_rundown(struct proc *p)
zfree(kaio_zone, ki);
p->p_aioinfo = NULL;
#endif /* VFS_AIO */
}
#ifdef VFS_AIO
/*
* Select a job to run (called by an AIO daemon).
*/
@ -1133,6 +1134,7 @@ aio_fphysio(struct proc *p, struct aiocblist *iocb, int flgwait)
relpbuf(bp, NULL);
return (error);
}
#endif /* VFS_AIO */
/*
* Wake up aio requests that may be serviceable now.
@ -1140,6 +1142,9 @@ aio_fphysio(struct proc *p, struct aiocblist *iocb, int flgwait)
void
aio_swake(struct socket *so, struct sockbuf *sb)
{
#ifndef VFS_AIO
return;
#else
struct aiocblist *cb,*cbn;
struct proc *p;
struct kaioinfo *ki = NULL;
@ -1177,8 +1182,10 @@ aio_swake(struct socket *so, struct sockbuf *sb)
wakeup(aiop->aioproc);
}
}
#endif /* VFS_AIO */
}
#ifdef VFS_AIO
/*
* Queue a new AIO request. Choosing either the threaded or direct physio VCHR
* technique is done in this code.
@ -1439,6 +1446,7 @@ aio_aqueue(struct proc *p, struct aiocb *job, int type)
return _aio_aqueue(p, job, NULL, type);
}
#endif /* VFS_AIO */
/*
* Support the aio_return system call, as a side-effect, kernel resources are
@ -2155,6 +2163,7 @@ lio_listio(struct proc *p, struct lio_listio_args *uap)
#endif /* VFS_AIO */
}
#ifdef VFS_AIO
/*
* This is a wierd hack so that we can post a signal. It is safe to do so from
* a timeout routine, but *not* from an interrupt routine.
@ -2246,6 +2255,7 @@ aio_physwakeup(struct buf *bp)
}
splx(s);
}
#endif /* VFS_AIO */
int
aio_waitcomplete(struct proc *p, struct aio_waitcomplete_args *uap)
@ -2327,6 +2337,19 @@ aio_waitcomplete(struct proc *p, struct aio_waitcomplete_args *uap)
#endif /* VFS_AIO */
}
#ifndef VFS_AIO
static int
filt_aioattach(struct knote *kn)
{
return (ENXIO);
}
struct filterops aio_filtops =
{ 0, filt_aioattach, NULL, NULL };
#else
static int
filt_aioattach(struct knote *kn)
{
@ -2368,3 +2391,7 @@ filt_aio(struct knote *kn, long hint)
kn->kn_flags |= EV_EOF;
return (1);
}
struct filterops aio_filtops =
{ 0, filt_aioattach, filt_aiodetach, filt_aio };
#endif /* VFS_AIO */