Differential D31677

fspacectl(2): Changes on rmsr.r_offset's minimum value returned
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Authored by khng on Aug 25 2021, 12:08 PM.

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rG9e202d036dd6: fspacectl(2): Changes on rmsr.r_offset's minimum value returned

Summary

rmsr.r_offset now is set to rqsr.r_offset plus the number of bytes
zeroed before hitting the end-of-file. After this change rmsr.r_offset
no longer contains the EOF when the requested operation range is
completely beyond the end-of-file. Instead in such case rmsr.r_offset is
equal to rqsr.r_offset. Callers can obtain the number of bytes zeroed
by subtracting rqsr.r_offset from rmsr.r_offset.

Sponsored by: The FreeBSD Foundation

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rS FreeBSD src repository - subversion

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Buildable 41200
Build 38089: arc lint + arc unit

Event Timeline

khng created this revision.Aug 25 2021, 12:08 PM

Herald added a reviewer: manpages. · View Herald TranscriptAug 25 2021, 12:08 PM

Herald added a subscriber: imp. · View Herald Transcript

khng requested review of this revision.Aug 25 2021, 12:08 PM

Harbormaster completed remote builds in B41200: Diff 94163.Aug 25 2021, 12:08 PM

This should play better with the nfs_deallocate implementation in NFS4.2 client module.

kib accepted this revision.Aug 25 2021, 4:01 PM

This revision is now accepted and ready to land.Aug 25 2021, 4:01 PM

Closed by commit rG9e202d036dd6: fspacectl(2): Changes on rmsr.r_offset's minimum value returned (authored by khng). · Explain WhyAug 25 2021, 4:05 PM

This revision was automatically updated to reflect the committed changes.

khng added a commit: rG9e202d036dd6: fspacectl(2): Changes on rmsr.r_offset's minimum value returned.

Revision Contents
Changeset List

Path

Size

lib/

libc/

sys/

9 lines

share/

man/

man9/

VOP_DEALLOCATE.9

9 lines

vn_deallocate.9

7 lines

sys/

kern/

1 line

5 lines

Diff 94163

lib/libc/sys/fspacectl.2

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share/man/man9/VOP_DEALLOCATE.9

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share/man/man9/vn_deallocate.9

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sys/kern/uipc_shm.c

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sys/kern/vfs_default.c

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