Revision 9d514262425691dddf942edea8bc9919e66fe140 authored by Wanpeng Li on 13 May 2015, 06:01:03 UTC, committed by Ingo Molnar on 19 June 2015, 08:06:46 UTC
This patch adds a check that prevents futile attempts to move DL tasks
to a CPU with active tasks of equal or earlier deadline. The same
behavior as commit 80e3d87b2c55 ("sched/rt: Reduce rq lock contention
by eliminating locking of non-feasible target") for rt class.
Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1431496867-4194-3-git-send-email-wanpeng.li@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
1 parent a6c0e74
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 24.4 KB |
| Makefile | -rw-r--r-- | 4.7 KB |
| acard-ahci.c | -rw-r--r-- | 12.6 KB |
| ahci.c | -rw-r--r-- | 50.5 KB |
| ahci.h | -rw-r--r-- | 15.6 KB |
| ahci_da850.c | -rw-r--r-- | 3.1 KB |
| ahci_imx.c | -rw-r--r-- | 17.9 KB |
| ahci_mvebu.c | -rw-r--r-- | 3.5 KB |
| ahci_platform.c | -rw-r--r-- | 2.4 KB |
| ahci_st.c | -rw-r--r-- | 5.9 KB |
| ahci_sunxi.c | -rw-r--r-- | 6.5 KB |
| ahci_tegra.c | -rw-r--r-- | 10.5 KB |
| ahci_xgene.c | -rw-r--r-- | 22.5 KB |
| ata_generic.c | -rw-r--r-- | 8.0 KB |
| ata_piix.c | -rw-r--r-- | 50.5 KB |
| libahci.c | -rw-r--r-- | 64.2 KB |
| libahci_platform.c | -rw-r--r-- | 17.7 KB |
| libata-acpi.c | -rw-r--r-- | 26.2 KB |
| libata-core.c | -rw-r--r-- | 179.2 KB |
| libata-eh.c | -rw-r--r-- | 111.5 KB |
| libata-pmp.c | -rw-r--r-- | 25.8 KB |
| libata-scsi.c | -rw-r--r-- | 107.0 KB |
| libata-sff.c | -rw-r--r-- | 83.9 KB |
| libata-trace.c | -rw-r--r-- | 4.3 KB |
| libata-transport.c | -rw-r--r-- | 19.5 KB |
| libata-transport.h | -rw-r--r-- | 536 bytes |
| libata-zpodd.c | -rw-r--r-- | 7.1 KB |
| libata.h | -rw-r--r-- | 10.7 KB |
| pata_acpi.c | -rw-r--r-- | 6.6 KB |
| pata_ali.c | -rw-r--r-- | 17.5 KB |
| pata_amd.c | -rw-r--r-- | 16.9 KB |
| pata_arasan_cf.c | -rw-r--r-- | 25.9 KB |
| pata_artop.c | -rw-r--r-- | 12.1 KB |
| pata_at32.c | -rw-r--r-- | 10.1 KB |
| pata_at91.c | -rw-r--r-- | 11.9 KB |
| pata_atiixp.c | -rw-r--r-- | 8.5 KB |
| pata_atp867x.c | -rw-r--r-- | 14.3 KB |
| pata_bf54x.c | -rw-r--r-- | 45.1 KB |
| pata_cmd640.c | -rw-r--r-- | 6.5 KB |
| pata_cmd64x.c | -rw-r--r-- | 12.9 KB |
| pata_cs5520.c | -rw-r--r-- | 7.9 KB |
| pata_cs5530.c | -rw-r--r-- | 9.2 KB |
| pata_cs5535.c | -rw-r--r-- | 6.2 KB |
| pata_cs5536.c | -rw-r--r-- | 7.5 KB |
| pata_cypress.c | -rw-r--r-- | 4.3 KB |
| pata_efar.c | -rw-r--r-- | 8.0 KB |
| pata_ep93xx.c | -rw-r--r-- | 28.8 KB |
| pata_hpt366.c | -rw-r--r-- | 10.7 KB |
| pata_hpt37x.c | -rw-r--r-- | 25.5 KB |
| pata_hpt3x2n.c | -rw-r--r-- | 15.6 KB |
| pata_hpt3x3.c | -rw-r--r-- | 7.2 KB |
| pata_icside.c | -rw-r--r-- | 16.0 KB |
| pata_imx.c | -rw-r--r-- | 6.3 KB |
| pata_isapnp.c | -rw-r--r-- | 3.2 KB |
| pata_it8213.c | -rw-r--r-- | 7.9 KB |
| pata_it821x.c | -rw-r--r-- | 27.2 KB |
| pata_ixp4xx_cf.c | -rw-r--r-- | 5.4 KB |
| pata_jmicron.c | -rw-r--r-- | 4.9 KB |
| pata_legacy.c | -rw-r--r-- | 33.2 KB |
| pata_macio.c | -rw-r--r-- | 39.9 KB |
| pata_marvell.c | -rw-r--r-- | 4.2 KB |
| pata_mpc52xx.c | -rw-r--r-- | 25.0 KB |
| pata_mpiix.c | -rw-r--r-- | 6.9 KB |
| pata_netcell.c | -rw-r--r-- | 2.6 KB |
| pata_ninja32.c | -rw-r--r-- | 5.2 KB |
| pata_ns87410.c | -rw-r--r-- | 4.7 KB |
| pata_ns87415.c | -rw-r--r-- | 10.9 KB |
| pata_octeon_cf.c | -rw-r--r-- | 27.4 KB |
| pata_of_platform.c | -rw-r--r-- | 2.3 KB |
| pata_oldpiix.c | -rw-r--r-- | 7.2 KB |
| pata_opti.c | -rw-r--r-- | 5.2 KB |
| pata_optidma.c | -rw-r--r-- | 11.9 KB |
| pata_palmld.c | -rw-r--r-- | 3.1 KB |
| pata_pcmcia.c | -rw-r--r-- | 13.2 KB |
| pata_pdc2027x.c | -rw-r--r-- | 21.1 KB |
| pata_pdc202xx_old.c | -rw-r--r-- | 9.9 KB |
| pata_piccolo.c | -rw-r--r-- | 3.6 KB |
| pata_platform.c | -rw-r--r-- | 6.5 KB |
| pata_pxa.c | -rw-r--r-- | 9.7 KB |
| pata_radisys.c | -rw-r--r-- | 6.6 KB |
| pata_rb532_cf.c | -rw-r--r-- | 5.0 KB |
| pata_rdc.c | -rw-r--r-- | 10.7 KB |
| pata_rz1000.c | -rw-r--r-- | 3.8 KB |
| pata_samsung_cf.c | -rw-r--r-- | 17.3 KB |
| pata_sc1200.c | -rw-r--r-- | 7.1 KB |
| pata_sch.c | -rw-r--r-- | 5.0 KB |
| pata_serverworks.c | -rw-r--r-- | 13.1 KB |
| pata_sil680.c | -rw-r--r-- | 11.4 KB |
| pata_sis.c | -rw-r--r-- | 23.5 KB |
| pata_sl82c105.c | -rw-r--r-- | 9.3 KB |
| pata_triflex.c | -rw-r--r-- | 6.4 KB |
| pata_via.c | -rw-r--r-- | 19.9 KB |
| pdc_adma.c | -rw-r--r-- | 16.3 KB |
| sata_dwc_460ex.c | -rw-r--r-- | 35.9 KB |
| sata_fsl.c | -rw-r--r-- | 43.2 KB |
| sata_highbank.c | -rw-r--r-- | 17.8 KB |
| sata_inic162x.c | -rw-r--r-- | 23.8 KB |
| sata_mv.c | -rw-r--r-- | 122.9 KB |
| sata_nv.c | -rw-r--r-- | 68.1 KB |
| sata_promise.c | -rw-r--r-- | 34.0 KB |
| sata_promise.h | -rw-r--r-- | 3.7 KB |
| sata_qstor.c | -rw-r--r-- | 17.4 KB |
| sata_rcar.c | -rw-r--r-- | 26.8 KB |
| sata_sil.c | -rw-r--r-- | 21.8 KB |
| sata_sil24.c | -rw-r--r-- | 37.7 KB |
| sata_sis.c | -rw-r--r-- | 8.1 KB |
| sata_svw.c | -rw-r--r-- | 14.8 KB |
| sata_sx4.c | -rw-r--r-- | 39.1 KB |
| sata_uli.c | -rw-r--r-- | 6.6 KB |
| sata_via.c | -rw-r--r-- | 17.6 KB |
| sata_vsc.c | -rw-r--r-- | 11.9 KB |
| sis.h | -rw-r--r-- | 97 bytes |
Computing file changes ...
