Bug 155544 - requeued IO does not have BIO_RW_FAILFAST set.
requeued IO does not have BIO_RW_FAILFAST set.
Product: Fedora
Classification: Fedora
Component: device-mapper-multipath (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Alasdair Kergon
Depends On:
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Reported: 2005-04-21 06:52 EDT by Lars Marowsky-Bree
Modified: 2007-11-30 17:11 EST (History)
5 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2005-04-21 16:05:29 EDT
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
Move setting BIO_RW_FAILFAST to map_io() (1.10 KB, patch)
2005-04-21 06:52 EDT, Lars Marowsky-Bree
no flags Details | Diff

  None (edit)
Description Lars Marowsky-Bree 2005-04-21 06:52:34 EDT
dm_bio_restore(), called just before requeuing, restores and overwrites our bio
flags. Attached patchlet fixes this.
Comment 1 Lars Marowsky-Bree 2005-04-21 06:52:35 EDT
Created attachment 113463 [details]
Move setting BIO_RW_FAILFAST to map_io()
Comment 2 Alasdair Kergon 2005-04-21 15:55:04 EDT
where does the overwriting happen?
bio_record.h doesn't touch bi_rw
Comment 3 Lars Marowsky-Bree 2005-04-21 16:05:29 EDT
Brown paper bag. You're right. I got confused by the setting of bi_flags, but
bi_rw_failfast is in a different field as you correctly point out; maybe I was
looking for bugs a little bit _too_ hard.

Closing bug, patch not needed ;)

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