shmfd: consistently return size in 512 byte blocks for fstat st_blocks
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Authored by kib on Aug 19 2026, 2:33 AM.

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rG3a1bf59d195c: shmfd: consistently return size in 512 byte blocks for fstat(2) st_blocks

Summary

This is ABI-breaking change that could be considered as the bug fix.

Requested by: David Timber <dxdt@dev.snart.me>

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rG FreeBSD src repository

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kib created this revision.Aug 19 2026, 2:33 AM

Herald added subscribers: ziaee, olce, glebius, imp. · View Herald TranscriptAug 19 2026, 2:33 AM

kib requested review of this revision.Aug 19 2026, 2:33 AM

This revision is now accepted and ready to land.Aug 19 2026, 2:45 AM

This needs a release note.

Closed by commit rG3a1bf59d195c: shmfd: consistently return size in 512 byte blocks for fstat(2) st_blocks (authored by kib). · Explain WhyAug 19 2026, 2:47 PM

This revision was automatically updated to reflect the committed changes.

kib added a commit: rG3a1bf59d195c: shmfd: consistently return size in 512 byte blocks for fstat(2) st_blocks.

I think this breaks the accounting test in tests/sys/posixshm/posixshm_test.c.

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Path

Size

lib/

libsys/

stat.2

8 lines

sys/

kern/

uipc_shm.c

8 lines

Diff 184362

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lib/libsys/stat.2