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authorAaron Campbell <aaron@cvs.openbsd.org>2000-03-15 03:18:03 +0000
committerAaron Campbell <aaron@cvs.openbsd.org>2000-03-15 03:18:03 +0000
commite3565a3a361f3ede9a01fac73743e3f60ebbea82 (patch)
treeca9d4e62660a1bd0a8063645f63e573350b2a870 /sys/msdosfs/msdosfs_vfsops.c
parent76532a54036a608113fa6d6998eb9cc5c3c7580c (diff)
Support FAT32 partitions >4GB (up to 128GB, in fact); d@ ok, from NetBSD.
Diffstat (limited to 'sys/msdosfs/msdosfs_vfsops.c')
-rw-r--r--sys/msdosfs/msdosfs_vfsops.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/msdosfs/msdosfs_vfsops.c b/sys/msdosfs/msdosfs_vfsops.c
index efcf50c6c1b..7d3c727eaa0 100644
--- a/sys/msdosfs/msdosfs_vfsops.c
+++ b/sys/msdosfs/msdosfs_vfsops.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: msdosfs_vfsops.c,v 1.19 2000/02/07 04:57:17 assar Exp $ */
+/* $OpenBSD: msdosfs_vfsops.c,v 1.20 2000/03/15 03:18:02 aaron Exp $ */
/* $NetBSD: msdosfs_vfsops.c,v 1.48 1997/10/18 02:54:57 briggs Exp $ */
/*-
@@ -269,6 +269,7 @@ msdosfs_mountfs(devvp, mp, p, argp)
u_int8_t SecPerClust;
int ronly, error;
int bsize = 0, dtype = 0, tmp;
+ u_long dirsperblk;
/*
* Disallow multiple mounts of the same device.
@@ -366,7 +367,9 @@ msdosfs_mountfs(devvp, mp, p, argp)
pmp->pm_HiddenSects = getushort(b33->bpbHiddenSecs);
pmp->pm_HugeSectors = pmp->pm_Sectors;
}
- if (pmp->pm_HugeSectors > 0xffffffff / pmp->pm_BytesPerSec + 1) {
+
+ dirsperblk = pmp->pm_BytesPerSec / sizeof(struct direntry);
+ if (pmp->pm_HugeSectors > 0xffffffff / dirsperblk + 1) {
/*
* We cannot deal currently with this size of disk
* due to fileid limitations (see msdosfs_getattr and