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[$] Page pinning and filesystems
Wednesday May 11, 2022. 01:13 AM , from LWN.net
It would have been surprising indeed if the 2022 Linux Storage,
Filesystem, Memory-management and BPF Summit (LSFMM) did not include a session working toward solutions to the longstanding problems with get_user_pages(), an internal function that locks user-space pages in memory for access by the kernel. The issue has, after all, come up numerous times over the years. This year's event duly contained a session in the joint filesystem and memory-management track, led by John Hubbard, with a focus on page pinning and how it interacts with filesystems.
https://lwn.net/Articles/894390/
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