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Commit 1199db60 authored by David Howells's avatar David Howells
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afs: Fix total-length calculation for multiple-page send



Fix the total-length calculation in afs_make_call() when the operation
being dispatched has data from a series of pages attached.

Despite the patched code looking like that it should reduce mathematically
to the current code, it doesn't because the 32-bit unsigned arithmetic
being used to calculate the page-offset-difference doesn't correctly extend
to a 64-bit value when the result is effectively negative.

Without this, some FS.StoreData operations that span multiple pages fail,
reporting too little or too much data.

Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
parent 5f0fc8ba
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