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Author SHA1 Message Date
Andreas Kling
32aa37d5dc Kernel+LibC: Add msync() system call
This allows userspace to trigger a full (FIXME) flush of a shared file
mapping to disk. We iterate over all the mapped pages in the VMObject
and write them out to the underlying inode, one by one. This is rather
naive, and there's lots of room for improvement.

Note that shared file mappings are currently not possible since mmap()
returns ENOTSUP for PROT_WRITE+MAP_SHARED. That restriction will be
removed in a subsequent commit. :^)
2021-11-17 19:34:15 +01:00
Andreas Kling
a8d1c2dde9 Kernel+LibC: Share definitions for sys/mman.h 2021-08-14 19:58:11 +02:00