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zero the pages for newly allocated clusters in deextend() after we

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notify UVM of the file's new size rather than in extendfile().
fixes PR 11852.
This commit is contained in:
chs 2001-01-01 00:25:41 +00:00
parent fe278fa440
commit 5c68a1518a
2 changed files with 7 additions and 10 deletions
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8
sys/msdosfs/msdosfs_denode.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: msdosfs_denode.c,v 1.47 2000/11/27 08:39:46 chs Exp $ */
/* $NetBSD: msdosfs_denode.c,v 1.48 2001/01/01 00:25:41 chs Exp $ */
/*-
* Copyright (C) 1994, 1995, 1997 Wolfgang Solfrank.
@ -490,7 +490,7 @@ deextend(dep, length, cred)
struct ucred *cred;
{
struct msdosfsmount *pmp = dep->de_pmp;
u_long count;
u_long count, osize;
int error;
/*
@ -523,8 +523,12 @@ deextend(dep, length, cred)
}
}
osize = dep->de_FileSize;
dep->de_FileSize = length;
uvm_vnp_setsize(DETOV(dep), (voff_t)dep->de_FileSize);
dep->de_flag |= DE_UPDATE|DE_MODIFIED;
uvm_vnp_zerorange(DETOV(dep), (off_t)osize,
(size_t)(dep->de_FileSize - osize));
return (deupdat(dep, 1));
}

9
sys/msdosfs/msdosfs_fat.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: msdosfs_fat.c,v 1.35 2000/12/04 11:54:39 fvdl Exp $ */
/* $NetBSD: msdosfs_fat.c,v 1.36 2001/01/01 00:25:41 chs Exp $ */
/*-
* Copyright (C) 1994, 1995, 1997 Wolfgang Solfrank.
@ -1070,12 +1070,5 @@ extendfile(dep, count, bpp, ncp, flags)
}
}
if ((flags & DE_CLEAR) && !(dep->de_Attributes & ATTR_DIRECTORY)) {
int cnshift = pmp->pm_cnshift;
uvm_vnp_zerorange(DETOV(dep), frcn << cnshift,
origcount << cnshift);
}
return (0);
}