From: Dev Jain <dev.jain@arm.com>
To: david@redhat.com, ziy@nvidia.com, willy@infradead.org,
dhowells@redhat.com, hughd@google.com
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
ryan.roberts@arm.com, aneesh.kumar@kernel.org
Subject: [QUESTION] xas_reload() in iter_xarray_populate_pages()
Date: Mon, 26 May 2025 12:05:24 +0530 [thread overview]
Message-ID: <20250526063524.22597-1-dev.jain@arm.com> (raw)
Hello all,
After doing an xas_load() and xas_retry(), we take neither a reference nor a lock
on the folio, and we do an xas_reload(). Is this just to reduce the time window
for a race?
If the above is true, then, there is a negligible window between xas_load() and
xas_reload(), because only xas_retry() exists between them, so why to even reload()?
Thanks,
Dev
next reply other threads:[~2025-05-26 6:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-26 6:35 Dev Jain [this message]
2025-05-26 7:40 ` [QUESTION] xas_reload() in iter_xarray_populate_pages() David Hildenbrand
2025-05-26 19:20 ` Matthew Wilcox
2025-06-17 5:10 ` Dev Jain
2025-06-17 7:47 ` David Hildenbrand
2025-06-17 9:18 ` Dev Jain
2025-06-17 9:26 ` David Hildenbrand
2025-06-17 9:38 ` Dev Jain
2025-06-17 13:47 ` Matthew Wilcox
2025-06-18 3:14 ` Dev Jain
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