swapon: Do not overwrite Linux swap header
Reviewed by: imp, jhb
Pull Request: https://github.com/freebsd/freebsd-src/pull/1084
Description
Description
Details
Details
- Provenance
rbranco_suse.com Authored on Apr 23 2024, 9:47 PM imp Committed on Apr 23 2024, 9:48 PM - Parents
- rG4f223e0da7b4: release: Change vmimage EFI GPT label
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- Reverted By
- rGfeabaf8d5389: Revert "swapon: Do not overwrite Linux swap header"
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I opened a new version at: https://github.com/freebsd/freebsd-src/pull/1205
I'm reading https://github.com/freebsd/freebsd-src/blob/main/sys/vm/swap_pager.c#L2432 right, FreeBSD already skips the first blocks to "avoid overwriting avoid overwriting any bsd label at the front of the partition". Much like NetBSD does.
The only difference in the new PR is s/4096/PAGE_SIZE to accomodate for other architectures (on Linux, x86_64 & s390x is 4096, ppc64le is 65536 & aarch64 is 16384).