Author: pfg
Date: Wed Jul 10 22:03:01 2013
New Revision: 253173
URL: http://svnweb.freebsd.org/changeset/base/253173
Log:
Implement 1003.1-2001 pathconf() keys.
This is based on r106058 in UFS.
MFC after: 1 month
Modified:
head/sys/fs/ext2fs/ext2_vnops.c
Modified: head/sys/fs/ext2fs/ext2_vnops.c
==============================================================================
--- head/sys/fs/ext2fs/ext2_vnops.c Wed Jul 10 21:37:50 2013
(r253172)
+++ head/sys/fs/ext2fs/ext2_vnops.c Wed Jul 10 22:03:01 2013
(r253173)
@@ -1410,33 +1410,68 @@ ext2fifo_kqfilter(struct vop_kqfilter_ar
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);
}
/*
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