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Implement 1003.1-2001 pathconf() keys.

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This is based on r106058 in UFS.

MFC after:	1 month
This commit is contained in:
Pedro F. Giffuni 2013-07-10 22:03:01 +00:00
parent 68fd965f98
commit c5249f35b8
1 changed files with 44 additions and 9 deletions
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53
sys/fs/ext2fs/ext2_vnops.c
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@ -1410,33 +1410,68 @@ ext2fifo_kqfilter(struct vop_kqfilter_args *ap)
static int
ext2_pathconf(struct vop_pathconf_args *ap)
{
int error = 0;
switch (ap->a_name) {
case _PC_LINK_MAX:
*ap->a_retval = EXT2_LINK_MAX;
return (0);
break;
case _PC_NAME_MAX:
*ap->a_retval = NAME_MAX;
return (0);
break;
case _PC_PATH_MAX:
*ap->a_retval = PATH_MAX;
return (0);
break;
case _PC_PIPE_BUF:
*ap->a_retval = PIPE_BUF;
return (0);
break;
case _PC_CHOWN_RESTRICTED:
*ap->a_retval = 1;
return (0);
break;
case _PC_NO_TRUNC:
*ap->a_retval = 1;
return (0);
break;
case _PC_MIN_HOLE_SIZE:
*ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
return(0);
break;
case _PC_ASYNC_IO:
/* _PC_ASYNC_IO should have been handled by upper layers. */
KASSERT(0, ("_PC_ASYNC_IO should not get here"));
error = EINVAL;
break;
case _PC_PRIO_IO:
*ap->a_retval = 0;
break;
case _PC_SYNC_IO:
*ap->a_retval = 0;
break;
case _PC_ALLOC_SIZE_MIN:
*ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_bsize;
break;
case _PC_FILESIZEBITS:
*ap->a_retval = 64;
break;
case _PC_REC_INCR_XFER_SIZE:
*ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
break;
case _PC_REC_MAX_XFER_SIZE:
*ap->a_retval = -1; /* means ``unlimited'' */
break;
case _PC_REC_MIN_XFER_SIZE:
*ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
break;
case _PC_REC_XFER_ALIGN:
*ap->a_retval = PAGE_SIZE;
break;
case _PC_SYMLINK_MAX:
*ap->a_retval = MAXPATHLEN;
break;
default:
return (EINVAL);
error = EINVAL;
break;
}
/* NOTREACHED */
return (error);
}
/*