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adjust inode size too if VOP_SETATTR changes size

This commit is contained in:
pooka 2011-02-02 14:41:55 +00:00
parent b7050e7fd4
commit d368e9df29
1 changed files with 20 additions and 4 deletions
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24
sys/rump/librump/rumpvfs/rumpfs.c
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@ -1,4 +1,4 @@
/* $NetBSD: rumpfs.c,v 1.89 2011/01/14 11:07:42 pooka Exp $ */
/* $NetBSD: rumpfs.c,v 1.90 2011/02/02 14:41:55 pooka Exp $ */
/*
* Copyright (c) 2009, 2010 Antti Kantee. All Rights Reserved.
@ -26,7 +26,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rumpfs.c,v 1.89 2011/01/14 11:07:42 pooka Exp $");
__KERNEL_RCSID(0, "$NetBSD: rumpfs.c,v 1.90 2011/02/02 14:41:55 pooka Exp $");
#include <sys/param.h>
#include <sys/atomic.h>
@ -855,8 +855,24 @@ rump_vop_setattr(void *v)
SETIFVAL(va_flags, u_long);
#undef SETIFVAL
if (vp->v_type == VREG && vap->va_size != VSIZENOTSET)
uvm_vnp_setsize(vp, vap->va_size);
if (vp->v_type == VREG &&
vap->va_size != VSIZENOTSET &&
vap->va_size != rn->rn_dlen) {
void *newdata;
size_t copylen, newlen;
newlen = vap->va_size;
newdata = rump_hypermalloc(newlen, 0, true, "rumpfs");
copylen = MIN(rn->rn_dlen, newlen);
memset(newdata, 0, newlen);
memcpy(newdata, rn->rn_data, copylen);
rump_hyperfree(rn->rn_data, rn->rn_dlen);
rn->rn_data = newdata;
rn->rn_dlen = newlen;
uvm_vnp_setsize(vp, newlen);
}
return 0;
}