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2016-07-19ata: sata_dwc_460ex: remove redundant dev_err callWei Yongjun1-8/+2
There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-19ata: define ATA_PROT_* in terms of ATA_PROT_FLAG_*Christoph Hellwig3-49/+23
This avoid the need to always translate between the two in ata_prot_flags and generally cleans up the taskfile protocol usage. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-19libata: remove ATA_PROT_FLAG_DATAChristoph Hellwig1-2/+1
Instead we can simply check for PIO or DMA in ata_is_data. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-19libata: remove ata_is_nodataChristoph Hellwig2-6/+1
The only caller can just check for !ata_is_data instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-19ata: make lba_{28,48}_ok() use ATA_MAX_SECTORS{,_LBA48}Tom Yan1-3/+3
Since we set ATA_MAX_SECTORS_LBA48 to 65535 to avoid the corner case in some drives that commands with "count" set to 0000h (which reprsents 65536) does not work as expected, lba_48_ok(), which is used for number-of-blocks checking when libata pack commands, should use the same limit as well. In fact, there is no reason for the two functions not to use the macros anyway. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-15libata-scsi: minor cleanup for ata_scsi_zbc_out_xlatDamien Le Moal1-4/+4
The reset_all variable name is misleading as this bit is also applicable to open, close, and finish actions. So rename that variable to "all" and remove the unnecessary mask operation that's already done earlier. Signed-off-by: Damien Le Moal <damien.lemoal@hgst.com> [hch: split from the previous patch] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-15libata-scsi: Fix ZBC management out command translationDamien Le Moal1-2/+2
The subcommand for NCQ NON-DATA must be specified in the feature (low byte), not the high-order count byte. Also make sure to properly cast the all bit to a u16 before shiting it by 8 to avoid undefined behavior. Signed-off-by: Damien Le Moal <damien.lemoal@hgst.com> [hch: split the original patch into two, updated changelog] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-15libata-scsi: Fix translation of REPORT ZONES commandDamien Le Moal1-2/+2
Include reporting options when translating REPORT ZONES commmand to ATA NCQ, and make sure we only look at the actually specified bits in the CDB for the options. Signed-off-by: Damien Le Moal <damien.lemoal@hgst.com> [hch: update patch description] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-15ata: Handle ATA NCQ NO-DATA commands correctlyHannes Reinecke6-2/+12
Add a new taskfile protocol ATA_PROT_NCQ_NODATA to handle ATA NCQ NO-DATA commands correctly. And fixup ata_scsi_zbc_out_xlat() to use it. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-14libata-eh: decode all taskfile protocolsHannes Reinecke1-0/+3
Some taskfile protocol values where missing in ata_eh_link_report(). Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-14ata: fixup ATA_PROT_NODATAHannes Reinecke2-3/+3
The taskfile protocol is a numeric value, and can not be ORed. Currently this is harmless as the protocol is always zeroed before, but if it ever has a non-zero value the ORing would create incorrect results. Signed-off-by: Hannes Reinecke <hare@suse.de> [hch: updated patch description] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-14libsas: use ata_is_ncq() and ata_has_dma() accessorsHannes Reinecke1-9/+2
Use accessors instead of the raw protocol value. Signed-off-by: Hannes Reinecke <hare@suse.com> [hch: trivial cleanup of the ata_task assignments] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-14libata: use ata_is_ncq() accessorsHannes Reinecke3-5/+5
Use accessor functions instead of the raw value. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-14libata: return boolean values from ata_is_*Christoph Hellwig1-8/+8
This way we don't have to worry about the exact bit postition of the test to leak out and any crazy propagation effects in the callers. Suggested-by: Tejun Heo <tj@kernel.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-12libata-scsi: avoid repeated calculation of number of TRIM rangesTom Yan2-5/+6
Currently libata statically allows only 1-block (512-byte) payload for each TRIM command. Each payload can carry 64 TRIM ranges since each range requires 8 bytes. It is silly to keep doing the calculation (512 / 8) in different places. Hence, define the new ATA_MAX_TRIM_RNUM for the result. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-12libata-scsi: reject WRITE SAME (16) with n_block that exceeds limitTom Yan1-1/+7
Currently if a WRITE SAME (16) command is issued to the SATL with "number of blocks" that is larger than the "Maximum write same length" (which is the maximum number of blocks per TRIM command allowed in libata, currently 65535 * 512 / 8 blocks), the SATL will accept the command and translate it to a TRIM command with the upper limit. However, according to SBC (as of sbc4r11.pdf), the "device server" should terminate the command with "Invalid field in CDB" in that case. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-12libata-scsi: rename ata_msense_ctl_mode() to ata_msense_control()Tom Yan1-5/+5
To make it consistent with the recently added ata_mselect_control(). We probably shouldn't have the word "mode" in its name anyway, since that's not the case for other ata_msense_*() / ata_mselect_*() either. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-12libata-scsi: fix D_SENSE bit relection in control mode pageTom Yan1-1/+1
The bit should always be set to 1 when the requested version of page is "changeable" because we've made it so in ata_mselect_control(). Also, it should always be set to 1 if ATA_DFLAG_D_SENSE is set (when the requested version of page is "current" or "default"). Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-12ata: hpt366: fix incorrect mask when checking at cmd_high_timeColin Ian King1-1/+1
According to the HPT366 data sheet, PCI config space dword 0x40-0x43 bits 11:8 specify the primary drive cmd_high_time, however, currently just 3 bits of the 4 are being used because the mask is 0x700 and not 0x0f00. Fix the mask, allowing for the 40MHz clock to be detected. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-12libata-scsi: correct SPC version descriptorTom Yan1-2/+2
The comment suggests we should be having an SPC-3 version descriptor but the 0260h is the code for "SPC-2 (no version claimed)". Correct it to 0300h so that it has the "SPC-3 (no version claimed)" descriptor. Note that we are claiming SPC-3 version compatibility in the VERSION field of the standard INQUIRY data. Therefore, I assume the typo was on the code but not on the comment. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-12libata-scsi: set CmdQue bit in standard INQUIRY data to 1Tom Yan1-1/+4
Avoid performance bottleneck when being SCSI pass-through'd to virtual machines with other OSes (e.g. Windows) via virtio-scsi and scsi-block in qemu. Ref.: https://github.com/YanVugenfirer/kvm-guest-drivers-windows/issues/63 Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-12libata-scsi: fix SET FEATURES "filtering" for ata_msense_caching()Tom Yan2-1/+6
Without this fix, the DRA bit of the caching mode page would not be updated when the read look-ahead feature is toggled (e.g. with `smartctl --set`), but will only be until, for example, the write cache feature is touched. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-12libata-scsi: set correct VERSION field for ZAC devicesTom Yan1-1/+3
Commit 856c46639309 ("libata: support device-managed ZAC devices") had the line that "bumps" the VERSION field in standard INQUIRY data removed. Add it back and claim SPC-5 version compatibility, which matches with the current version descriptor "SPC-5 (no version claimed)" that is used for ZAC devices. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-06libata-scsi: correct cbd to CDB in commentTom Yan1-1/+1
It's Command Descriptor Block. Also capitalized it. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-07-06libata-scsi: do not respond with "invalid field" for FORMAT UNITTom Yan1-5/+0
It does not make sense and is confusing to respond with "Invalid field in CDB" while we have no support at all implemented for FORMAT UNIT. It is decent to let it go to the default, which will respond with "Invalid command operation code" instead. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-06-28drivers: ata: pata_arasan_cf: use the same name for the same lockIago Abal1-1/+1
Note that `&acdev->host->lock' and `qc->ap->lock' denote the same lock, and it's particularly confusing to spin_lock on the former but spin_unlock on the latter. Signed-off-by: Iago Abal <mail@iagoabal.eu> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-06-17ata: fix "ering" sysfs time printingArnd Bergmann1-4/+5
The sysfs file for the libata error handling has multiple issues in the way it prints time stamps: * it prints a 9-digit nanosecond value using a %06lu format string, which drops some leading zeroes * it converts a 64-bit jiffes value to a timespec using jiffies_to_timespec(), which takes a 'long' argument, so the result is wrong after a jiffies overflow (49 days). * we try to avoid using timespec because that generally overflows in 2038, although this particular usage is ok. This replaces the jiffies_to_timespec call with an open-coded implementation that gets it right. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-06-16ARM: dts: nsp: Add sata device tree entryYendapally Reddy Dhananjaya Reddy2-0/+54
Add sata support to the Northstar Plus SoC device tree. Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-06-16phy: Add SATA3 PHY support for Broadcom NSP SoCYendapally Reddy Dhananjaya Reddy1-0/+81
This patch adds support for Broadcom NSP SATA3 PHY in existing Broadcom SATA PHY driver. Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-06-16ata: ahci_brcm: Add support for Broadcom NSP SoCYendapally Reddy Dhananjaya Reddy2-11/+37
Add SATA3 support for Broadcom NSP SoC Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-06-16ata: ahci_brcmstb: rename to support across Broadcom SoC'sYendapally Reddy Dhananjaya Reddy3-4/+4
Rename the existing Broadcom STB ahci driver to common Broadcom SATA3 driver to share this across Broadcom SoCs. Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-06-16dt-bindings: phy: Add documentation for NSP SATA PHYYendapally Reddy Dhananjaya Reddy1-1/+3
Add documentation for SATA PHY available in Broadcom's NSP SoC. Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-06-16dt-bindings: ata: add support for Broadcom NSP SoC ahciYendapally Reddy Dhananjaya Reddy1-0/+1
Add support for Broadcom NSP SoC ahci Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-06-16dt-bindings: ata: rename brcm, sata-brcmstb.txt to brcm, sata-brcm.txtYendapally Reddy Dhananjaya Reddy1-4/+4
Renames the dt bindings document of Broadcom STB ahci driver to common Broadcom ahci driver bindings document Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-27ata: Use IS_ENABLED() instead of checking for built-in or moduleJavier Martinez Canillas2-2/+2
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either built-in or as a module, use that macro instead of open coding the same. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-27MAINTAINERS: Add file patterns for ata device tree bindingsGeert Uytterhoeven1-0/+1
Submitters of device tree binding documentation may forget to CC the subsystem maintainer if this is missing. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tejun Heo <tj@kernel.org> Cc: linux-ide@vger.kernel.org Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-27pata_atiixp: fix trivial indentation misalignment on if statementColin Ian King1-2/+2
Remove extraneous space on if statement and on the following line, trivial fix, no functional change Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2016-05-27Merge branch 'misc' of ↵Linus Torvalds6-177/+14
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull misc kbuild updates from Michal Marek: "This is the non-critical part of kbuild: - Coccinelle fixes, one semantic patch less in this round [Vaishali Thakkar, Wolfram Sang, Kees Cook] - rpm-pkg support for (open)SUSE's update-bootloader [Jiří Kosian] - rpm-pkg restored support for $RPMOPTS [Srinivas Pandruvada] - deb-pkg fixes for the linux-headers package [Bjørn Mork, Azriel Samson]" * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: coccicheck: Fix missing 0 index in kill loop scripts/package/Makefile: rpmbuild add support of RPMOPTS builddeb: fix missing headers in linux-headers package builddeb: include objtool binary in headers package kbuild/mkspec: support 'update-bootloader'-based systems scripts: coccinelle: remove check to move constants to right Coccinelle: setup_timer: Add space in front of parentheses
2016-05-27Merge branch 'kconfig' of ↵Linus Torvalds3-10/+30
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kconfig update from Michal Marek: - fix for behavior of tristate choice items and fix for documentation of existing kconfig behavior [Dirk Gouders] - more helpful "unexpected data" kconfig warning [Paul Bolle] * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kconfig/symbol.c: handle choice_values that depend on 'm' symbols kconfig-language: elaborate on the type of a choice kconfig-language: fix comment on dependency-generated menu structures. kconfig: add unexpected data itself to warning
2016-05-27Merge branch 'kbuild' of ↵Linus Torvalds29-95/+335
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild updates from Michal Marek: - new option CONFIG_TRIM_UNUSED_KSYMS which does a two-pass build and unexports symbols which are not used in the current config [Nicolas Pitre] - several kbuild rule cleanups [Masahiro Yamada] - warning option adjustments for gcov etc [Arnd Bergmann] - a few more small fixes * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (31 commits) kbuild: move -Wunused-const-variable to W=1 warning level kbuild: fix if_change and friends to consider argument order kbuild: fix adjust_autoksyms.sh for modules that need only one symbol kbuild: fix ksym_dep_filter when multiple EXPORT_SYMBOL() on the same line gcov: disable -Wmaybe-uninitialized warning gcov: disable tree-loop-im to reduce stack usage gcov: disable for COMPILE_TEST Kbuild: disable 'maybe-uninitialized' warning for CONFIG_PROFILE_ALL_BRANCHES Kbuild: change CC_OPTIMIZE_FOR_SIZE definition kbuild: forbid kernel directory to contain spaces and colons kbuild: adjust ksym_dep_filter for some cmd_* renames kbuild: Fix dependencies for final vmlinux link kbuild: better abstract vmlinux sequential prerequisites kbuild: fix call to adjust_autoksyms.sh when output directory specified kbuild: Get rid of KBUILD_STR kbuild: rename cmd_as_s_S to cmd_cpp_s_S kbuild: rename cmd_cc_i_c to cmd_cpp_i_c kbuild: drop redundant "PHONY += FORCE" kbuild: delete unnecessary "@:" kbuild: mark help target as PHONY ...
2016-05-27Merge branch 'akpm' (patches from Andrew)Linus Torvalds12-49/+37
Merge fixes from Andrew Morton: "10 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: drivers/pinctrl/intel/pinctrl-baytrail.c: fix build with gcc-4.4 update "mm/zsmalloc: don't fail if can't create debugfs info" dma-debug: avoid spinlock recursion when disabling dma-debug mm: oom_reaper: remove some bloat memcg: fix mem_cgroup_out_of_memory() return value. ocfs2: fix improper handling of return errno mm: slub: remove unused virt_to_obj() mm: kasan: remove unused 'reserved' field from struct kasan_alloc_meta mm: make CONFIG_DEFERRED_STRUCT_PAGE_INIT depends on !FLATMEM explicitly seqlock: fix raw_read_seqcount_latch()
2016-05-27Merge tag 'dax-locking-for-4.7' of ↵Linus Torvalds7-235/+513
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull DAX locking updates from Ross Zwisler: "Filesystem DAX locking for 4.7 - We use a bit in an exceptional radix tree entry as a lock bit and use it similarly to how page lock is used for normal faults. This fixes races between hole instantiation and read faults of the same index. - Filesystem DAX PMD faults are disabled, and will be re-enabled when PMD locking is implemented" * tag 'dax-locking-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax: Remove i_mmap_lock protection dax: Use radix tree entry lock to protect cow faults dax: New fault locking dax: Allow DAX code to replace exceptional entries dax: Define DAX lock bit for radix tree exceptional entry dax: Make huge page handling depend of CONFIG_BROKEN dax: Fix condition for filling of PMD holes
2016-05-27Merge tag 'dax-misc-for-4.7' of ↵Linus Torvalds19-293/+246
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull misc DAX updates from Vishal Verma: "DAX error handling for 4.7 - Until now, dax has been disabled if media errors were found on any device. This enables the use of DAX in the presence of these errors by making all sector-aligned zeroing go through the driver. - The driver (already) has the ability to clear errors on writes that are sent through the block layer using 'DSMs' defined in ACPI 6.1. Other misc changes: - When mounting DAX filesystems, check to make sure the partition is page aligned. This is a requirement for DAX, and previously, we allowed such unaligned mounts to succeed, but subsequent reads/writes would fail. - Misc/cleanup fixes from Jan that remove unused code from DAX related to zeroing, writeback, and some size checks" * tag 'dax-misc-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax: fix a comment in dax_zero_page_range and dax_truncate_page dax: for truncate/hole-punch, do zeroing through the driver if possible dax: export a low-level __dax_zero_page_range helper dax: use sb_issue_zerout instead of calling dax_clear_sectors dax: enable dax in the presence of known media errors (badblocks) dax: fallback from pmd to pte on error block: Update blkdev_dax_capable() for consistency xfs: Add alignment check for DAX mount ext2: Add alignment check for DAX mount ext4: Add alignment check for DAX mount block: Add bdev_dax_supported() for dax mount checks block: Add vfs_msg() interface dax: Remove redundant inode size checks dax: Remove pointless writeback from dax_do_io() dax: Remove zeroing from dax_io() dax: Remove dead zeroing code from fault handlers ext2: Avoid DAX zeroing to corrupt data ext2: Fix block zeroing in ext2_get_blocks() for DAX dax: Remove complete_unwritten argument DAX: move RADIX_DAX_ definitions to dax.c
2016-05-27drivers/pinctrl/intel/pinctrl-baytrail.c: fix build with gcc-4.4Andrew Morton1-3/+7
gcc-4.4 and thereabouts has issues with initializers of anonymous unions, and it generates the following warnings: drivers/pinctrl/intel/pinctrl-baytrail.c:413: error: unknown field 'simple_funcs' specified in initializer drivers/pinctrl/intel/pinctrl-baytrail.c:413: warning: missing braces around initializer drivers/pinctrl/intel/pinctrl-baytrail.c:413: warning: (near initialization for 'byt_score_groups[0].<anonymous>') drivers/pinctrl/intel/pinctrl-baytrail.c:415: error: unknown field 'simple_funcs' specified in initializer drivers/pinctrl/intel/pinctrl-baytrail.c:417: error: unknown field 'simple_funcs' specified in initializer ... Work around this. Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-27update "mm/zsmalloc: don't fail if can't create debugfs info"Dan Streetman1-19/+16
Some updates to commit d34f615720d1 ("mm/zsmalloc: don't fail if can't create debugfs info"): - add pr_warn to all stat failure cases - do not prevent module loading on stat failure Link: http://lkml.kernel.org/r/1463671123-5479-1-git-send-email-ddstreet@ieee.org Signed-off-by: Dan Streetman <ddstreet@ieee.org> Reviewed-by: Ganesh Mahendran <opensource.ganesh@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Dan Streetman <dan.streetman@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-27dma-debug: avoid spinlock recursion when disabling dma-debugVille Syrjälä1-1/+1
With netconsole (at least) the pr_err("... disablingn") call can recurse back into the dma-debug code, where it'll try to grab free_entries_lock again. Avoid the problem by doing the printk after dropping the lock. Link: http://lkml.kernel.org/r/1463678421-18683-1-git-send-email-ville.syrjala@linux.intel.com Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-27mm: oom_reaper: remove some bloatMichal Hocko3-1/+7
mmput_async is currently used only from the oom_reaper which is defined only for CONFIG_MMU. We can save work_struct in mm_struct for !CONFIG_MMU. [akpm@linux-foundation.org: fix typo, per Minchan] Link: http://lkml.kernel.org/r/20160520061658.GB19172@dhcp22.suse.cz Reported-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-27memcg: fix mem_cgroup_out_of_memory() return value.Tetsuo Handa1-0/+2
mem_cgroup_out_of_memory() is returning "true" if it finds a TIF_MEMDIE task after an eligible task was found, "false" if it found a TIF_MEMDIE task before an eligible task is found. This difference confuses memory_max_write() which checks the return value of mem_cgroup_out_of_memory(). Since memory_max_write() wants to continue looping, mem_cgroup_out_of_memory() should return "true" in this case. This patch sets a dummy pointer in order to return "true". Link: http://lkml.kernel.org/r/1463753327-5170-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Vladimir Davydov <vdavydov@virtuozzo.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-27ocfs2: fix improper handling of return errnoEric Ren1-6/+1
Previously, if a bad inode was found in ocfs2_iget(), -ESTALE was returned back to the caller anyway. Since commit d2b9d71a2da7 ("ocfs2: check/fix inode block for online file check") can handle with return value from ocfs2_read_locked_inode() now, we know the exact errno returned for us. Link: http://lkml.kernel.org/r/1463970656-18413-1-git-send-email-zren@suse.com Signed-off-by: Eric Ren <zren@suse.com> Reviewed-by: Joseph Qi <joseph.qi@huawei.com> Cc: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-27mm: slub: remove unused virt_to_obj()Andrey Ryabinin1-16/+0
It's unused since commit 7ed2f9e66385 ("mm, kasan: SLAB support") Link: http://lkml.kernel.org/r/1464020961-2242-1-git-send-email-aryabinin@virtuozzo.com Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: David Rientjes <rientjes@google.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Christoph Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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