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Use thread0.td_ucred instead of proc0.p_ucred. This change is cosmetic

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and isn't strictly required.  However, it lowers the number of false
positives found when grep'ing the kernel sources for p_ucred to ensure
proper locking.
This commit is contained in:
John Baldwin 2002-02-27 19:18:10 +00:00
parent bdd67d483c
commit fdcc1cc09f
3 changed files with 11 additions and 11 deletions
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8
sys/nfsclient/nfs_lock.c
View File

@ -156,7 +156,7 @@ nfs_dolock(struct vop_advlock_args *ap)
NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, _PATH_LCKFIFO, td);
fmode = FFLAGS(O_WRONLY);
error = vn_open_cred(&nd, &fmode, 0, proc0.p_ucred);
error = vn_open_cred(&nd, &fmode, 0, thread0.td_ucred);
if (error != 0) {
return (error == ENOENT ? EOPNOTSUPP : error);
}
@ -166,10 +166,10 @@ nfs_dolock(struct vop_advlock_args *ap)
ioflg = IO_UNIT;
for (;;) {
VOP_LEASE(wvp, td, proc0.p_ucred, LEASE_WRITE);
VOP_LEASE(wvp, td, thread0.td_ucred, LEASE_WRITE);
error = vn_rdwr(UIO_WRITE, wvp, (caddr_t)&msg, sizeof(msg), 0,
UIO_SYSSPACE, ioflg, proc0.p_ucred, NULL, td);
UIO_SYSSPACE, ioflg, thread0.td_ucred, NULL, td);
if (error && (((ioflg & IO_NDELAY) == 0) || error != EAGAIN)) {
break;
@ -219,7 +219,7 @@ nfs_dolock(struct vop_advlock_args *ap)
break;
}
if ((error1 = vn_close(wvp, FWRITE, proc0.p_ucred, td)) && error == 0)
if ((error1 = vn_close(wvp, FWRITE, thread0.td_ucred, td)) && error == 0)
return (error1);
return (error);

2
sys/ufs/ffs/ffs_snapshot.c
View File

@ -57,7 +57,7 @@
#include <ufs/ffs/fs.h>
#include <ufs/ffs/ffs_extern.h>
#define KERNCRED proc0.p_ucred
#define KERNCRED thread0.td_ucred
#define DEBUG 1
static int cgaccount __P((int, struct vnode *, struct buf *, int));

12
sys/vm/swap_pager.c
View File

@ -1135,8 +1135,8 @@ swap_pager_getpages(object, m, count, reqpage)
bp->b_iocmd = BIO_READ;
bp->b_iodone = swp_pager_async_iodone;
bp->b_rcred = crhold(proc0.p_ucred);
bp->b_wcred = crhold(proc0.p_ucred);
bp->b_rcred = crhold(thread0.td_ucred);
bp->b_wcred = crhold(thread0.td_ucred);
bp->b_data = (caddr_t) kva;
bp->b_blkno = blk - (reqpage - i);
bp->b_bcount = PAGE_SIZE * (j - i);
@ -1386,8 +1386,8 @@ swap_pager_putpages(object, m, count, sync, rtvals)
pmap_qenter((vm_offset_t)bp->b_data, &m[i], n);
bp->b_rcred = crhold(proc0.p_ucred);
bp->b_wcred = crhold(proc0.p_ucred);
bp->b_rcred = crhold(thread0.td_ucred);
bp->b_wcred = crhold(thread0.td_ucred);
bp->b_bcount = PAGE_SIZE * n;
bp->b_bufsize = PAGE_SIZE * n;
bp->b_blkno = blk;
@ -2080,8 +2080,8 @@ getchainbuf(struct bio *bp, struct vnode *vp, int flags)
nbp->b_iocmd = bp->bio_cmd;
nbp->b_ioflags = 0;
nbp->b_flags = flags;
nbp->b_rcred = crhold(proc0.p_ucred);
nbp->b_wcred = crhold(proc0.p_ucred);
nbp->b_rcred = crhold(thread0.td_ucred);
nbp->b_wcred = crhold(thread0.td_ucred);
nbp->b_iodone = vm_pager_chain_iodone;
if (vp)