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05 April 2024, 19:05:47 UTC
Revision ea9339e564605286bd04c32c460f8cedc979458c authored by Linus Torvalds on 24 July 2014, 00:39:28 UTC, committed by Linus Torvalds on 24 July 2014, 00:39:28 UTC 
Merge branch 'for-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
 
Pull libata regression fix from Tejun Heo:
 "The last libata/for-3.16-fixes pull contained a regression introduced
  by 1871ee134b73 ("libata: support the ata host which implements a
  queue depth less than 32") which in turn was a fix for a regression
  introduced earlier while changing queue tag order to accomodate hard
  drives which perform poorly if tags are not allocated in circular
  order (ugh...).

  The regression happens only for SAS controllers making use of libata
  to serve ATA devices.  They don't fill an ata_host field which is used
  by the new tag allocation function leading to NULL dereference.

  This patch adds a new intermediate field ata_host->n_tags which is
  initialized for both SAS and !SAS cases to fix the issue"

* 'for-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata: introduce ata_host->n_tags to avoid oops on SAS controllers
2 parent s b292d6b + 1a112d1
History
Tip revision: ea9339e564605286bd04c32c460f8cedc979458c authored by Linus Torvalds on 24 July 2014, 00:39:28 UTC
Merge branch 'for-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Tip revision: ea9339e
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