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Code Issues Releases Activity

Correct a sanity check in vnode_pager_generic_putpages(). The cast used

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to implement the sanity check should have been changed when we converted
the implementation of vm_pindex_t from 32 to 64 bits.  (Thus, RELENG_4 is
not affected.)  The consequence of this error would be a legimate write to
an extremely large file being treated as an errant attempt to write meta-
data.

Discussed with: tegge@
This commit is contained in:
Alan Cox 2004-12-05 21:48:11 +00:00
parent bb28d112bb
commit d8fed1d050
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=138406
1 changed files with 1 additions and 1 deletions
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2
sys/vm/vnode_pager.c
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@ -1013,7 +1013,7 @@ vnode_pager_generic_putpages(vp, m, bytecount, flags, rtvals)
for (i = 0; i < count; i++)
rtvals[i] = VM_PAGER_AGAIN;
if ((int) m[0]->pindex < 0) {
if ((int64_t)m[0]->pindex < 0) {
printf("vnode_pager_putpages: attempt to write meta-data!!! -- 0x%lx(%lx)\n",
(long)m[0]->pindex, (u_long)m[0]->dirty);
rtvals[0] = VM_PAGER_BAD;