[$] The phaseout of the mmap() file operation
Date:
Thu, 25 Sep 2025 16:48:55 +0000
Description:
The file_operations structure in the kernel is a set of function pointers implementing, as the
name would suggest, operations on files. A subsystem that manages objects which can be represented by a file descriptor will provide a file_operations structure providing implementations of the various
operations that a user of the file descriptor may want to carry out. The mmap() method, in particular, is invoked when user space calls the mmap() system call to map the object behind a file descriptor into its address
space. That method, though, is currently on its way out in a multi-release process that started in 6.17.
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Link to news story:
https://lwn.net/Articles/1038715/
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