diff options
| author | phk <phk@FreeBSD.org> | 2000-03-20 10:44:49 +0000 |
|---|---|---|
| committer | phk <phk@FreeBSD.org> | 2000-03-20 10:44:49 +0000 |
| commit | a246e10f55686681d4b6bd4dba5ca661b4e34bb0 (patch) | |
| tree | 13a3ded179bf1de0aff7c33b0eba0534aa2dcf09 /sys/powerpc | |
| parent | f274a82c1448c090620cb35f8516831602a12658 (diff) | |
| download | FreeBSD-src-a246e10f55686681d4b6bd4dba5ca661b4e34bb0.zip FreeBSD-src-a246e10f55686681d4b6bd4dba5ca661b4e34bb0.tar.gz | |
Remove B_READ, B_WRITE and B_FREEBUF and replace them with a new
field in struct buf: b_iocmd. The b_iocmd is enforced to have
exactly one bit set.
B_WRITE was bogusly defined as zero giving rise to obvious coding
mistakes.
Also eliminate the redundant struct buf flag B_CALL, it can just
as efficiently be done by comparing b_iodone to NULL.
Should you get a panic or drop into the debugger, complaining about
"b_iocmd", don't continue. It is likely to write on your disk
where it should have been reading.
This change is a step in the direction towards a stackable BIO capability.
A lot of this patch were machine generated (Thanks to style(9) compliance!)
Vinum users: Greg has not had time to test this yet, be careful.
Diffstat (limited to 'sys/powerpc')
| -rw-r--r-- | sys/powerpc/aim/vm_machdep.c | 2 | ||||
| -rw-r--r-- | sys/powerpc/powerpc/vm_machdep.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/sys/powerpc/aim/vm_machdep.c b/sys/powerpc/aim/vm_machdep.c index bb2bbfd..982f127 100644 --- a/sys/powerpc/aim/vm_machdep.c +++ b/sys/powerpc/aim/vm_machdep.c @@ -319,7 +319,7 @@ vmapbuf(bp) * when reading stuff off device into memory. */ vm_fault_quick(addr, - (bp->b_flags&B_READ)?(VM_PROT_READ|VM_PROT_WRITE):VM_PROT_READ); + (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) panic("vmapbuf: page not present"); diff --git a/sys/powerpc/powerpc/vm_machdep.c b/sys/powerpc/powerpc/vm_machdep.c index bb2bbfd..982f127 100644 --- a/sys/powerpc/powerpc/vm_machdep.c +++ b/sys/powerpc/powerpc/vm_machdep.c @@ -319,7 +319,7 @@ vmapbuf(bp) * when reading stuff off device into memory. */ vm_fault_quick(addr, - (bp->b_flags&B_READ)?(VM_PROT_READ|VM_PROT_WRITE):VM_PROT_READ); + (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) panic("vmapbuf: page not present"); |
