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Fix problem where a user buffer outside of the area being tested

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will be corrupted.

PR:		29194
Obtained from:	Tor.Egge@fast.no
MFC after:	2 weeks
This commit is contained in:
Matt Jacob 2001-10-02 18:34:20 +00:00
parent 8ec410b54a
commit 22883e3c68
6 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/alpha/alpha/vm_machdep.c
View File

@ -303,7 +303,7 @@ vmapbuf(bp)
* Do the vm_fault if needed; do the copy-on-write thing
* when reading stuff off device into memory.
*/
vm_fault_quick(addr,
vm_fault_quick((addr >= bp->b_data) ? addr : bp->b_data,
(bp->b_iocmd == BIO_READ)?(VM_PROT_READ|VM_PROT_WRITE):VM_PROT_READ);
pa = trunc_page(pmap_kextract((vm_offset_t) addr));
if (pa == 0)

2
sys/amd64/amd64/vm_machdep.c
View File

@ -357,7 +357,7 @@ vmapbuf(bp)
* Do the vm_fault if needed; do the copy-on-write thing
* when reading stuff off device into memory.
*/
vm_fault_quick(addr,
vm_fault_quick((addr >= bp->b_data) ? addr : bp->b_data,
(bp->b_iocmd == BIO_READ)?(VM_PROT_READ|VM_PROT_WRITE):VM_PROT_READ);
pa = trunc_page(pmap_kextract((vm_offset_t) addr));
if (pa == 0)

2
sys/i386/i386/vm_machdep.c
View File

@ -357,7 +357,7 @@ vmapbuf(bp)
* Do the vm_fault if needed; do the copy-on-write thing
* when reading stuff off device into memory.
*/
vm_fault_quick(addr,
vm_fault_quick((addr >= bp->b_data) ? addr : bp->b_data,
(bp->b_iocmd == BIO_READ)?(VM_PROT_READ|VM_PROT_WRITE):VM_PROT_READ);
pa = trunc_page(pmap_kextract((vm_offset_t) addr));
if (pa == 0)

2
sys/ia64/ia64/vm_machdep.c
View File

@ -356,7 +356,7 @@ vmapbuf(bp)
* Do the vm_fault if needed; do the copy-on-write thing
* when reading stuff off device into memory.
*/
vm_fault_quick(addr,
vm_fault_quick((addr >= bp->b_data) ? addr : bp->b_data,
(bp->b_iocmd == BIO_READ)?(VM_PROT_READ|VM_PROT_WRITE):VM_PROT_READ);
pa = trunc_page(pmap_kextract((vm_offset_t) addr));
if (pa == 0)

2
sys/powerpc/aim/vm_machdep.c
View File

@ -218,7 +218,7 @@ vmapbuf(bp)
* Do the vm_fault if needed; do the copy-on-write thing
* when reading stuff off device into memory.
*/
vm_fault_quick(addr,
vm_fault_quick((addr >= bp->b_data) ? addr : bp->b_data,
(bp->b_iocmd == BIO_READ)?(VM_PROT_READ|VM_PROT_WRITE):VM_PROT_READ);
pa = trunc_page(pmap_kextract((vm_offset_t) addr));
if (pa == 0)

2
sys/powerpc/powerpc/vm_machdep.c
View File

@ -218,7 +218,7 @@ vmapbuf(bp)
* Do the vm_fault if needed; do the copy-on-write thing
* when reading stuff off device into memory.
*/
vm_fault_quick(addr,
vm_fault_quick((addr >= bp->b_data) ? addr : bp->b_data,
(bp->b_iocmd == BIO_READ)?(VM_PROT_READ|VM_PROT_WRITE):VM_PROT_READ);
pa = trunc_page(pmap_kextract((vm_offset_t) addr));
if (pa == 0)