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dax: advance the iomap_iter on pte and pmd faults

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Advance the iomap_iter on PTE and PMD faults. Each of these
operations assign a hardcoded size to iter.processed. Replace those
with an advance and status return.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Link: https://lore.kernel.org/r/20250224144757.237706-10-bfoster@redhat.com
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Brian Foster 2025-02-24 09:47:54 -05:00 committed by Christian Brauner
parent 39eb051129
commit 6fe32fe1bb
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GPG Key ID: 91C61BC06578DCA2
1 changed files with 8 additions and 4 deletions
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12
fs/dax.c
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@ -1771,8 +1771,10 @@ static vm_fault_t dax_iomap_pte_fault(struct vm_fault *vmf, pfn_t *pfnp,
ret |= VM_FAULT_MAJOR;
}
if (!(ret & VM_FAULT_ERROR))
iter.processed = PAGE_SIZE;
if (!(ret & VM_FAULT_ERROR)) {
u64 length = PAGE_SIZE;
iter.processed = iomap_iter_advance(&iter, &length);
}
}
if (iomap_errp)
@ -1885,8 +1887,10 @@ static vm_fault_t dax_iomap_pmd_fault(struct vm_fault *vmf, pfn_t *pfnp,
continue; /* actually breaks out of the loop */
ret = dax_fault_iter(vmf, &iter, pfnp, &xas, &entry, true);
if (ret != VM_FAULT_FALLBACK)
iter.processed = PMD_SIZE;
if (ret != VM_FAULT_FALLBACK) {
u64 length = PMD_SIZE;
iter.processed = iomap_iter_advance(&iter, &length);
}
}
unlock_entry: