Fixup the geliboot sector round code
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Authored by allanjude on May 5 2016, 1:33 AM.

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peter
emaste
ed

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rS300257: Fixup the geliboot sector rounding code

Summary

Replace all rounding with the round{up,down}2 macros, a missing set of braces caused the previous code to be incorrect Also, replace alloca() with malloc() because alloca() can return an allocation that is actually invalid, causing boot to fail

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rS FreeBSD src repository - subversion

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Buildable 3582
Build 3622: arc lint + arc unit

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allanjude updated this revision to Diff 15912.May 5 2016, 1:33 AM

allanjude retitled this revision from to Fixup the geliboot sector round code Replace all rounding with the round{up,down}2 macros, a missing set of braces caused the previous code to be incorrect Also, replace alloca() with malloc() because alloca() can return an allocation that is....

allanjude updated this object.

allanjude edited the test plan for this revision. (Show Details)

allanjude added reviewers: ed, emaste, peter.

Herald added a subscriber: imp. · View Herald TranscriptMay 5 2016, 1:33 AM

tsoome added a subscriber: tsoome.May 5 2016, 6:12 AM

tsoome added inline comments.May 5 2016, 8:18 AM

sys/boot/i386/libi386/biosdisk.c
749–750	since bd structure is already having bd_sectorsize member, I would suggest to use bd_sectorsize here and below and avoid hardcoded constant; this will help to get ready for non-512B sector disks.
769	bd_io() is returning -1 in case of error, I would keep the same logic, maybe also set errno to ENOMEM.

allanjude updated this object.May 5 2016, 1:41 PM

Updated with feedback from tsoome

Updating D6213: Fixup the geliboot sector round code

Replace all rounding with the round{up,down}2 macros, a missing set of braces caused the previous code to be incorrect

Also, replace alloca() with malloc() because alloca() can return an allocation that is...

allanjude marked 2 inline comments as done.May 5 2016, 1:45 PM

allanjude retitled this revision from Fixup the geliboot sector round code Replace all rounding with the round{up,down}2 macros, a missing set of braces caused the previous code to be incorrect Also, replace alloca() with malloc() because alloca() can return an allocation that is... to Fixup the geliboot sector round code.

ed accepted this revision.May 6 2016, 9:41 AM

ed edited edge metadata.

This revision is now accepted and ready to land.May 6 2016, 9:41 AM

Make it actually compile

This revision now requires review to proceed.May 19 2016, 6:34 PM

ed accepted this revision.May 19 2016, 7:34 PM

ed edited edge metadata.

This revision is now accepted and ready to land.May 19 2016, 7:34 PM

Closed by commit rS300257: Fixup the geliboot sector rounding code (authored by allanjude). · Explain WhyMay 20 2016, 1:42 AM

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Path

Size

sys/

boot/

i386/

libi386/

biosdisk.c

39 lines

zfsboot/

zfsboot.c

11 lines

Diff 15930

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sys/boot/i386/libi386/biosdisk.c