Niklas Cassel a38719e315 ata: libata: avoid superfluous disk spin down + spin up during hibernation ... A user reported that commit aa3998dbeb ("ata: libata-scsi: Disable scsi device manage_system_start_stop") introduced a spin down + immediate spin up of the disk both when entering and when resuming from hibernation. This behavior was not there before, and causes an increased latency both when entering and when resuming from hibernation. Hibernation is done by three consecutive PM events, in the following order: 1) PM_EVENT_FREEZE 2) PM_EVENT_THAW 3) PM_EVENT_HIBERNATE Commit aa3998dbeb ("ata: libata-scsi: Disable scsi device manage_system_start_stop") modified ata_eh_handle_port_suspend() to call ata_dev_power_set_standby() (which spins down the disk), for both event PM_EVENT_FREEZE and event PM_EVENT_HIBERNATE. Documentation/driver-api/pm/devices.rst, section "Entering Hibernation", explicitly mentions that PM_EVENT_FREEZE does not have to be put the device in a low-power state, and actually recommends not doing so. Thus, let's not spin down the disk on PM_EVENT_FREEZE. (The disk will instead be spun down during the subsequent PM_EVENT_HIBERNATE event.) This way, PM_EVENT_FREEZE will behave as it did before commit aa3998dbeb ("ata: libata-scsi: Disable scsi device manage_system_start_stop"), while PM_EVENT_HIBERNATE will continue to spin down the disk. This will avoid the superfluous spin down + spin up when entering and resuming from hibernation, while still making sure that the disk is spun down before actually entering hibernation. Cc: stable@vger.kernel.org # v6.6+ Fixes: aa3998dbeb ("ata: libata-scsi: Disable scsi device manage_system_start_stop") Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/20241008135843.1266244-2-cassel@kernel.org Signed-off-by: Niklas Cassel <cassel@kernel.org>		2024-10-09 16:21:19 +02:00
..
pata_parport	parport: Remove parport_driver.devmodel	2024-07-03 16:44:22 +02:00
acard-ahci.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
ahci_brcm.c	ata: ahci_brcm: Use devm_platform_ioremap_resource_byname() helper function	2024-08-28 10:32:21 +09:00
ahci_ceva.c	ata: ahci_ceva: fix error handling for Xilinx GT PHY support	2024-02-19 10:44:37 +01:00
ahci_da850.c	ata: libata: Make ata_platform_remove_one return void	2023-05-15 06:49:39 +09:00
ahci_dm816.c	ata: libata: Make ata_platform_remove_one return void	2023-05-15 06:49:39 +09:00
ahci_dwc.c	ata: Explicitly include correct DT includes	2023-08-02 17:37:05 +09:00
ahci_imx.c	ata: ahci_imx: Fix error code in probe()	2024-08-15 13:44:33 +02:00
ahci_mtk.c	ata: Explicitly include correct DT includes	2023-08-02 17:37:05 +09:00
ahci_mvebu.c	ata: Explicitly include correct DT includes	2023-08-02 17:37:05 +09:00
ahci_octeon.c	ata: ahci_octeon: Convert to devm_platform_ioremap_resource()	2023-08-02 17:37:06 +09:00
ahci_platform.c	driver core changes for 6.5-rc1	2023-07-03 12:56:23 -07:00
ahci_qoriq.c	ata: fix debounce timings type	2023-08-02 17:37:06 +09:00
ahci_seattle.c	ata: ahci_seattle: Convert to devm_platform_ioremap_resource()	2023-08-02 17:37:06 +09:00
ahci_st.c	ata: ahci_st: Remove an unused field in struct st_ahci_drv_data	2024-04-02 12:18:15 +09:00
ahci_sunxi.c	ata: Explicitly include correct DT includes	2023-08-02 17:37:05 +09:00
ahci_tegra.c	ata: ahci_tegra: Convert to devm_platform_ioremap_resource()	2023-08-02 17:37:06 +09:00
ahci_xgene.c	ata: xgene: Use of_device_get_match_data()	2023-10-11 17:53:37 +09:00
ahci.c	ata: ahci: Rephrase comment to not use the term blacklist	2024-07-30 07:10:14 +09:00
ahci.h	scsi: libata: Switch to using ->device_configure	2024-04-11 21:37:50 -04:00
ata_generic.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
ata_piix.c	ata: ata_piix: Remove useless comment in piix_init_sidpr()	2024-07-30 07:10:25 +09:00
Kconfig	ata: Kconfig: Update SATA_MOBILE_LPM_POLICY default to med_power_with_dipm	2024-05-27 11:34:50 +02:00
libahci_platform.c	ata: libahci_platform: Simplify code with for_each_child_of_node_scoped()	2024-08-15 13:30:06 +02:00
libahci.c	ata: libata-core: Set ATA_QCFLAG_RTF_FILLED in fill_result_tf()	2024-07-03 10:51:41 +02:00
libata-acpi.c	ata: make use of ata_port_is_frozen() helper	2022-10-18 13:53:27 +09:00
libata-core.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
libata-eh.c	ata: libata: avoid superfluous disk spin down + spin up during hibernation	2024-10-09 16:21:19 +02:00
libata-pata-timings.c	ata: separate PATA timings code from libata-core.c	2020-03-26 10:28:19 -06:00
libata-pmp.c	ata: libata: Move sector_buf from struct ata_port to struct ata_device	2024-09-07 10:16:55 +09:00
libata-sata.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
libata-scsi.c	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
libata-sff.c	ata: libata: Remove ata_noop_qc_prep()	2024-08-02 09:18:42 +09:00
libata-trace.c	ata: scsi: rename flag ATA_QCFLAG_FAILED to ATA_QCFLAG_EH	2023-01-04 13:36:26 +09:00
libata-transport.c	ata: libata: Fix W=1 compilation warning	2024-09-07 11:02:52 +09:00
libata-transport.h	ata,scsi: Remove wrappers ata_sas_tport_{add,delete}()	2024-07-04 11:52:31 +02:00
libata-zpodd.c	ata: libata: Move sector_buf from struct ata_port to struct ata_device	2024-09-07 10:16:55 +09:00
libata.h	ata: libata: Improve CDL resource management	2024-09-07 10:16:56 +09:00
Makefile	ATA changes for 6.3-rc1	2023-02-22 13:35:51 -08:00
pata_acpi.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_ali.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_amd.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_arasan_cf.c	ata: pata_arasan_cf: Convert to platform remove callback returning void	2023-08-02 17:53:09 +09:00
pata_artop.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_atiixp.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_atp867x.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_buddha.c	ata: pata_buddha: Remove #include <asm/ide.h>	2023-08-24 08:09:59 +09:00
pata_cmd64x.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_cmd640.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_cs5520.c	ata: pata_cs5520: Rephrase file header comment	2024-07-30 07:10:30 +09:00
pata_cs5530.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_cs5535.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_cs5536.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_cypress.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_efar.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_ep93xx.c	soc: convert ep93xx to devicetree	2024-09-26 12:00:25 -07:00
pata_falcon.c	ata: pata_falcon: Convert to platform remove callback returning void	2023-11-08 09:00:44 +09:00
pata_ftide010.c	ata: pata_ftide010: Enable module autoloading	2024-09-02 08:05:36 +09:00
pata_gayle.c	ata: pata_gayle: Convert to platform remove callback returning void	2023-11-08 09:00:49 +09:00
pata_hpt3x2n.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_hpt3x3.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_hpt37x.c	ata: pata_hpt37x: Rename hpt_dma_blacklisted()	2024-07-30 07:10:38 +09:00
pata_hpt366.c	ata: pata_hpt366: Rename hpt_dma_blacklisted()	2024-07-30 07:10:34 +09:00
pata_icside.c	ata: libata: Remove ata_noop_qc_prep()	2024-08-02 09:18:42 +09:00
pata_imx.c	ata: pata_imx: Use helper function devm_clk_get_enabled()	2023-08-17 07:45:32 +09:00
pata_isapnp.c	ata: pata_isapnp: Add missing error check for devm_ioport_map()	2023-11-20 09:22:26 +09:00
pata_it821x.c	ata: libata: Use QUIRK instead of HORKAGE	2024-07-30 07:09:54 +09:00
pata_it8213.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_ixp4xx_cf.c	ata: pata_ixp4xx: Enable module autoloading	2024-09-02 08:06:04 +09:00
pata_jmicron.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_legacy.c	ata: pata_legacy: make legacy_exit() work again	2024-05-07 07:23:31 +09:00
pata_macio.c	ata: pata_macio: Use WARN instead of BUG	2024-08-21 14:33:23 +09:00
pata_marvell.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_mpc52xx.c	ata: libata: Remove ata_noop_qc_prep()	2024-08-02 09:18:42 +09:00
pata_mpiix.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_netcell.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_ninja32.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_ns87410.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_ns87415.c	ata: pata_ns87415: mark ns87560_tf_read static	2023-07-28 08:52:42 +09:00
pata_octeon_cf.c	ata: libata: Remove ata_noop_qc_prep()	2024-08-02 09:18:42 +09:00
pata_of_platform.c	ata: libata: Make ata_platform_remove_one return void	2023-05-15 06:49:39 +09:00
pata_oldpiix.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_opti.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_optidma.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_pcmcia.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_pdc202xx_old.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_pdc2027x.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_piccolo.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_platform.c	ata: libata: Make ata_platform_remove_one return void	2023-05-15 06:49:39 +09:00
pata_pxa.c	ata: pata_pxa: convert not to use dma_request_slave_channel()	2023-11-20 09:28:25 +09:00
pata_radisys.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_rb532_cf.c	ata: pata_rb532_cf: Convert to platform remove callback returning void	2023-08-02 17:55:52 +09:00
pata_rdc.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_rz1000.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_sc1200.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_sch.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_serverworks.c	ata: pata_serverworks: Do not use the term blacklist	2024-07-30 07:10:08 +09:00
pata_sil680.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_sis.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_sl82c105.c	ata: libata: remove deprecated EH callbacks	2023-08-02 17:45:42 +09:00
pata_triflex.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pata_via.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
pdc_adma.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
sata_dwc_460ex.c	ata: sata_dwc_460ex: Convert to platform remove callback returning void	2023-08-02 17:55:52 +09:00
sata_fsl.c	ata: sata_fsl: Convert to platform remove callback returning void	2023-08-02 17:55:52 +09:00
sata_gemini.c	ata: sata_gemini: Enable module autoloading	2024-09-02 08:06:23 +09:00
sata_gemini.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
sata_highbank.c	ata: fix debounce timings type	2023-08-02 17:37:06 +09:00
sata_inic162x.c	ata: fix debounce timings type	2023-08-02 17:37:06 +09:00
sata_mv.c	SCSI misc on 20240514	2024-05-14 18:25:53 -07:00
sata_nv.c	scsi: libata: Switch to using ->device_configure	2024-04-11 21:37:50 -04:00
sata_promise.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
sata_promise.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18	2019-05-21 11:28:46 +02:00
sata_qstor.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
sata_rcar.c	ata: sata_rcar: Convert to platform remove callback returning void	2023-08-02 17:55:52 +09:00
sata_sil24.c	scsi: libata: Switch to using ->device_configure	2024-04-11 21:37:50 -04:00
sata_sil.c	ata: sata_sil: Rename sil_blacklist to sil_quirks	2024-07-30 07:10:21 +09:00
sata_sis.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
sata_svw.c	ata: Use of_property_read_reg() to parse "reg"	2023-06-13 15:38:48 +09:00
sata_sx4.c	ata: sata_sx4: fix pdc20621_get_from_dimm() on 64-bit	2024-04-01 07:52:17 +09:00
sata_uli.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
sata_via.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
sata_vsc.c	scsi: ata: Declare SCSI host templates const	2023-03-24 19:19:19 -04:00
sis.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00