Commit message (Collapse) | Author | Age | Files | Lines | |
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* | [S390] cio: reduce memory consumption of itcw structures | Stefan Weinhuber | 2011-01-05 | 1 | -10/+52 |
| | | | | | | | | | | | | | Any list of indirect data adresses (TIDAL) used by a TCW must not cross a page boundary. The original itcw implementation complies with this restriction by allocating allmost twice as much memory as actually needed, so that in any case there is enough room for the full TIDAL, either above or below the page boundary. This patch implements an alternative method, by using a TTIC TIDAW to connect TIDAL parts below and above a page boundary. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> | ||||
* | [S390] appldata/extmem/kvm: add missing GFP_KERNEL flag | Heiko Carstens | 2010-06-08 | 1 | -1/+1 |
| | | | | | | | | Add missing GFP flag to memory allocations. The part in cio only changes a comment. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> | ||||
* | [S390] cio: provide helper functions for fcx enabled I/O | Peter Oberparleiter | 2008-07-14 | 1 | -0/+327 |
Provide functions which can be used to incrementally construct fcx enabled I/O control blocks. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> |