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zfs mappedread: use uiomove_fromphys where possible

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Reviewed by:	alc
Approved by:	pjd
Tested by:	tools/regression/fsx
MFC after:	2 weeks
This commit is contained in:
Andriy Gapon 2010-09-15 10:44:20 +00:00
parent c183b9c683
commit c002c3e8c2
1 changed files with 2 additions and 8 deletions
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10
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
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@ -479,14 +479,8 @@ again:
dirbytes);
dirbytes = 0;
}
if (error == 0) {
sched_pin();
sf = sf_buf_alloc(m, SFB_CPUPRIVATE);
va = (caddr_t)sf_buf_kva(sf);
error = uiomove(va + off, bytes, UIO_READ, uio);
sf_buf_free(sf);
sched_unpin();
}
if (error == 0)
uiomove_fromphys(&m, off, bytes, uio);
VM_OBJECT_LOCK(obj);
vm_page_wakeup(m);
} else if (m != NULL && uio->uio_segflg == UIO_NOCOPY) {