This particular code had no effect on WFI execution. It only
asserts/de-asserts signal to tegra "legacy" CPU idle stats
monitor, which we are no longer using (cpufreq is based on
kernel s/w idle stats instead).
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Rename all Tegra binding documentation according to the first or
primary compatible value they describe. This provides a clear naming
scheme for the files, and prevents any naming conflicts should future
SoC versions require their own binding.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Use a more plain english name.
Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
[swarren: also rename the node in tegra-seaboard.dts]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Use a more plain english name.
Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
[swarren: remove redundant unit address from Tegra30 example]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Use a more plain english name.
Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
[swarren: remove redundant unit address from tegra30.dtsi change]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Use pci_is_pcie() instead of looking at obsolete is_pcie field in
struct pci_dev.
CC: Huang Ying <ying.huang@intel.com>
CC: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
pci_max_busnr() has been commented out for years (since 54c762fe62), and
this patch removes it completely.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Fix RQ/SRQ error CQE polling. Return error CQE to consumer for error
case which was not returned previously.
Signed-off-by: Parav Pandit <parav.pandit@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Fix max sge calculation for sq, rq, srq for all hardware types.
Signed-off-by: Mahesh Vardhamanaiah <mahesh.vardhamanaiah@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Fix code to read the max wqe and max rqe values from mailbox response.
Signed-off-by: Mahesh Vardhamanaiah <mahesh.vardhamanaiah@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
1. Fix reporting GID table addition events.
2. Enable vlan based GID entries only when VLAN is enabled at compile
time (test CONFIG_VLAN_8021Q / CONFIG_VLAN_8021Q_MODULE).
Signed-off-by: Parav Pandit <parav.pandit@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Remove the arch-dependent parameter, as it were not used,
as the MCE tracepoint weren't implemented. It probably doesn't
make sense to have an MCE-specific tracepoint, as this will
cost more bytes at the tracepoint, and tracepoint is not free.
The changes at the EDAC drivers were done by this small perl script:
$file .=$_ while (<>);
$file =~ s/(edac_mc_handle_error)\s*\(([^\;]+)\,([^\,\)]+)\s*\)/$1($2)/g;
print $file;
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The EDAC driver name doesn't help to handle EDAC errors. So,
remove it from the EDAC error messages, preserving only the
error_message.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add a check here for if kzalloc() failed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
There were lots of changes introduced to justify renaming it to
3.0.0:
- EDAC core were redesigned to represent all types of
memory controllers;
- EDAC API were redesigned to properly represent the memory
controller hierarchy;
- a tracepoint-based API were added to report memory errors.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use a more common debugging style.
Remove __FILE__ uses, add missing newlines,
coalesce formats and align arguments.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Convert macros to a simpler style and enforce appropriate
format checking when not CONFIG_EDAC_DEBUG.
Use fmt and __VA_ARGS__, neaten macros.
Move some string arrays to the debugfx uses and remove the
now unnecessary CONFIG_EDAC_DEBUG variable block definitions.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The debug macro already adds that. Most of the work here was
made by this small script:
$f .=$_ while (<>);
$f =~ s/(debugf[0-9]\s*\(\s*)__FILE__\s*": /\1"/g;
$f =~ s/(debugf[0-9]\s*\(\s*)__FILE__\s*/\1/g;
$f =~ s/(debugf[0-9]\s*\(\s*)__FILE__\s*"MC: /\1"/g;
$f =~ s/(debugf[0-9]\s*\(\")\%s[\:\,\(\)]*\s*([^\"]*\s*[^\)]+)__func__\s*\,\s*/\1\2/g;
$f =~ s/(debugf[0-9]\s*\(\")\%s[\:\,\(\)]*\s*([^\"]*\s*[^\)]+),\s*__func__\s*\)/\1\2)/g;
$f =~ s/(debugf[0-9]\s*\(\"MC\:\s*)\%s[\:\,\(\)]*\s*([^\"]*\s*[^\)]+)__func__\s*\,\s*/\1\2/g;
$f =~ s/(debugf[0-9]\s*\(\"MC\:\s*)\%s[\:\,\(\)]*\s*([^\"]*\s*[^\)]+),\s*__func__\s*\)/\1\2)/g;
$f =~ s/\"MC\: \\n\"/"MC:\\n"/g;
print $f;
After running the script, manual cleanups were done to fix it the remaining
places.
While here, removed the __LINE__ on most places, as it doesn't actually give
useful info on most places.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The EDAC ABI were extended to add support for per-DIMM or per-rank
information and silkscreen labels. Properly document them.
Most of the comments there came from edac.txt descriptions of the
fields that are part of the legacy csrowX ABI (e. g.
/sys/devices/system/edac/mc/mc*/csrow*/*).
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The EDAC MC API is currently stored at the wrong place. Move the
parts of the EDAC MC ABI that will be kept to
ABI/testing/sysfs-devices-edac.
The Date: field were added based on git timestamps for the git
commit patches that added the functionality at edac.txt.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Kernel kobjects have rigid rules: each container object should be
dynamically allocated, and can't be allocated into a single kmalloc.
EDAC never obeyed this rule: it has a single malloc function that
allocates all needed data into a single kzalloc.
As this is not accepted anymore, change the allocation schema of the
EDAC *_info structs to enforce this Kernel standard.
Cc: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Kernel kobjects have rigid rules: each container object should be
dynamically allocated, and can't be allocated into a single kmalloc.
EDAC never obeyed this rule: it has a single malloc function that
allocates all needed data into a single kzalloc.
As this is not accepted anymore, change the allocation schema of the
EDAC *_info structs to enforce this Kernel standard.
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Greg K H <gregkh@linuxfoundation.org>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Mark Gross <mark.gross@intel.com>
Cc: Tim Small <tim@buttersideup.com>
Cc: Ranganathan Desikan <ravi@jetztechnologies.com>
Cc: "Arvind R." <arvino55@gmail.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Egor Martovetsky <egor@pasemi.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Hitoshi Mitake <h.mitake@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch actually fixes a bug with the legacy API, where, at the
same csrow, some channels may have different DIMMs. This can happen
on FB-DIMM/RAMBUS and modern Intel controllers.
This is the case, for example, of Nehalem machines:
$ ./edac-ctl --layout
+-----------------------------------+
| mc0 |
| channel0 | channel1 | channel2 |
-------+-----------------------------------+
slot2: | 0 MB | 0 MB | 0 MB |
slot1: | 1024 MB | 0 MB | 0 MB |
slot0: | 1024 MB | 1024 MB | 1024 MB |
-------+-----------------------------------+
Before this patch, non-filled memories were shown. Now, only what's
filled is there:
grep . /sys/devices/system/edac/mc/mc0/csrow*/ch?*
/sys/devices/system/edac/mc/mc0/csrow0/ch0_ce_count:0
/sys/devices/system/edac/mc/mc0/csrow0/ch0_dimm_label:CPU#0Channel#0_DIMM#0
/sys/devices/system/edac/mc/mc0/csrow0/ch1_ce_count:0
/sys/devices/system/edac/mc/mc0/csrow0/ch1_dimm_label:CPU#0Channel#0_DIMM#1
/sys/devices/system/edac/mc/mc0/csrow1/ch0_ce_count:0
/sys/devices/system/edac/mc/mc0/csrow1/ch0_dimm_label:CPU#0Channel#1_DIMM#0
/sys/devices/system/edac/mc/mc0/csrow2/ch0_ce_count:0
/sys/devices/system/edac/mc/mc0/csrow2/ch0_dimm_label:CPU#0Channel#2_DIMM#0
Thanks-to: Aristeu Rozanski Filho <arozansk@redhat.com>
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The 3e7bddc changeset (edac: move dimm properties to struct memset_info)
moved the calculus inside a loop. However, at those stuff are common to
all channels, on several drivers, it is better to put the calculus
outside the loop, to optimize the code.
Reported-by: Aristeu Rozanski Filho <arozansk@redhat.com>
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Mark Gross <mark.gross@intel.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Sometimes, it is useful to have a mechanism that generates fake
errors, in order to test the EDAC core code, and the userspace
tools.
Provide such mechanism by adding a few debugfs nodes.
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The userspace tools need to know what's the maximum location on each
system, as it helps to create nice maps showing how the memory was
filled at the system.
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The old EDAC API is broken. It only works fine for systems manufatured
before 2005 and for AMD 64. The reason is that it forces all memory
controller drivers to discover rank info.
Also, it doesn't allow grouping the several ranks into a DIMM.
So, what almost all modern drivers do is to create a fake virtual-rank
information, and use it to cheat the EDAC core to accept the driver.
While this works if the user has enough time to discover what DIMM slot
corresponds to each "virtual-rank" information, it prevents EDAC usage
for users with less available time. It also makes life hard for vendors
that may want to provide a table with their motherboards to the userspace
tool (edac-utils) as each driver has its own logic for the virtual
mapping.
So, the old API should be removed, in favor of a more flexible API that
allows newer drivers to not lie to the EDAC core.
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Josh Boyer <jwboyer@redhat.com>
Cc: Hui Wang <jason77.wang@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Now that al users for the old kobj raw access are gone,
we can get rid of the legacy kobj-based structures and
data.
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Instead of relying on a complex logic inside the edac core to create
a "device tree-like" sysfs struct, just use device_add.
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Now that the EDAC core supports struct device, there's no sense
on having any logic at the EDAC core to simulate it. So, instead
of adding such logic there, change the logic at amd64_edac to
use it.
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Now that the EDAC core supports struct device, there's no sense on
having any logic at the EDAC core to simulate it. So, instead of adding
such logic there, change the logic at mpc85xx_edac to use it
compile-tested only.
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The EDAC subsystem uses the old struct sysdev approach,
creating all nodes using the raw sysfs API. This is bad,
as the API is deprecated.
As we'll be changing the EDAC API, let's first port the existing
code to struct device.
There's one drawback on this patch: driver-specific sysfs
nodes, used by mpc85xx_edac, amd64_edac and i7core_edac
won't be created anymore. While it would be possible to
also port the device-specific code, that would mix kobj with
struct device, with is not recommended. Also, it is easier and nicer
to move the code to the drivers, instead, as the core can get rid
of some complex logic that just emulates what the device_add()
and device_create_file() already does.
The next patches will convert the driver-specific code to use
the device-specific calls. Then, the remaining bits of the old
sysfs API will be removed.
NOTE: a per-MC bus is required, otherwise devices with more than
one memory controller will hit a bug like the one below:
[ 819.094946] EDAC DEBUG: find_mci_by_dev: find_mci_by_dev()
[ 819.094948] EDAC DEBUG: edac_create_sysfs_mci_device: edac_create_sysfs_mci_device() idx=1
[ 819.094952] EDAC DEBUG: edac_create_sysfs_mci_device: edac_create_sysfs_mci_device(): creating device mc1
[ 819.094967] EDAC DEBUG: edac_create_sysfs_mci_device: edac_create_sysfs_mci_device creating dimm0, located at channel 0 slot 0
[ 819.094984] ------------[ cut here ]------------
[ 819.100142] WARNING: at fs/sysfs/dir.c:481 sysfs_add_one+0xc1/0xf0()
[ 819.107282] Hardware name: S2600CP
[ 819.111078] sysfs: cannot create duplicate filename '/bus/edac/devices/dimm0'
[ 819.119062] Modules linked in: sb_edac(+) edac_core ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle iptable_filter ip_tables bridge stp llc sunrpc binfmt_misc dm_mirror dm_region_hash dm_log vhost_net macvtap macvlan tun kvm microcode pcspkr iTCO_wdt iTCO_vendor_support igb i2c_i801 i2c_core sg ioatdma dca sr_mod cdrom sd_mod crc_t10dif ahci libahci isci libsas libata scsi_transport_sas scsi_mod wmi dm_mod [last unloaded: scsi_wait_scan]
[ 819.175748] Pid: 10902, comm: modprobe Not tainted 3.3.0-0.11.el7.v12.2.x86_64 #1
[ 819.184113] Call Trace:
[ 819.186868] [<ffffffff8105adaf>] warn_slowpath_common+0x7f/0xc0
[ 819.193573] [<ffffffff8105aea6>] warn_slowpath_fmt+0x46/0x50
[ 819.200000] [<ffffffff811f53d1>] sysfs_add_one+0xc1/0xf0
[ 819.206025] [<ffffffff811f5cf5>] sysfs_do_create_link+0x135/0x220
[ 819.212944] [<ffffffff811f7023>] ? sysfs_create_group+0x13/0x20
[ 819.219656] [<ffffffff811f5df3>] sysfs_create_link+0x13/0x20
[ 819.226109] [<ffffffff813b04f6>] bus_add_device+0xe6/0x1b0
[ 819.232350] [<ffffffff813ae7cb>] device_add+0x2db/0x460
[ 819.238300] [<ffffffffa0325634>] edac_create_dimm_object+0x84/0xf0 [edac_core]
[ 819.246460] [<ffffffffa0325e18>] edac_create_sysfs_mci_device+0xe8/0x290 [edac_core]
[ 819.255215] [<ffffffffa0322e2a>] edac_mc_add_mc+0x5a/0x2c0 [edac_core]
[ 819.262611] [<ffffffffa03412df>] sbridge_register_mci+0x1bc/0x279 [sb_edac]
[ 819.270493] [<ffffffffa03417a3>] sbridge_probe+0xef/0x175 [sb_edac]
[ 819.277630] [<ffffffff813ba4e8>] ? pm_runtime_enable+0x58/0x90
[ 819.284268] [<ffffffff812f430c>] local_pci_probe+0x5c/0xd0
[ 819.290508] [<ffffffff812f5ba1>] __pci_device_probe+0xf1/0x100
[ 819.297117] [<ffffffff812f5bea>] pci_device_probe+0x3a/0x60
[ 819.303457] [<ffffffff813b1003>] really_probe+0x73/0x270
[ 819.309496] [<ffffffff813b138e>] driver_probe_device+0x4e/0xb0
[ 819.316104] [<ffffffff813b149b>] __driver_attach+0xab/0xb0
[ 819.322337] [<ffffffff813b13f0>] ? driver_probe_device+0xb0/0xb0
[ 819.329151] [<ffffffff813af5d6>] bus_for_each_dev+0x56/0x90
[ 819.335489] [<ffffffff813b0d7e>] driver_attach+0x1e/0x20
[ 819.341534] [<ffffffff813b0980>] bus_add_driver+0x1b0/0x2a0
[ 819.347884] [<ffffffffa0347000>] ? 0xffffffffa0346fff
[ 819.353641] [<ffffffff813b19f6>] driver_register+0x76/0x140
[ 819.359980] [<ffffffff8159f18b>] ? printk+0x51/0x53
[ 819.365524] [<ffffffffa0347000>] ? 0xffffffffa0346fff
[ 819.371291] [<ffffffff812f5896>] __pci_register_driver+0x56/0xd0
[ 819.378096] [<ffffffffa0347054>] sbridge_init+0x54/0x1000 [sb_edac]
[ 819.385231] [<ffffffff8100203f>] do_one_initcall+0x3f/0x170
[ 819.391577] [<ffffffff810bcd2e>] sys_init_module+0xbe/0x230
[ 819.397926] [<ffffffff815bb529>] system_call_fastpath+0x16/0x1b
[ 819.404633] ---[ end trace 1654fdd39556689f ]---
This happens because the bus is not being properly initialized.
Instead of putting the memory sub-devices inside the memory controller,
it is putting everything under the same directory:
$ tree /sys/bus/edac/
/sys/bus/edac/
├── devices
│ ├── all_channel_counts -> ../../../devices/system/edac/mc/mc0/all_channel_counts
│ ├── csrow0 -> ../../../devices/system/edac/mc/mc0/csrow0
│ ├── csrow1 -> ../../../devices/system/edac/mc/mc0/csrow1
│ ├── csrow2 -> ../../../devices/system/edac/mc/mc0/csrow2
│ ├── dimm0 -> ../../../devices/system/edac/mc/mc0/dimm0
│ ├── dimm1 -> ../../../devices/system/edac/mc/mc0/dimm1
│ ├── dimm3 -> ../../../devices/system/edac/mc/mc0/dimm3
│ ├── dimm6 -> ../../../devices/system/edac/mc/mc0/dimm6
│ ├── inject_addrmatch -> ../../../devices/system/edac/mc/mc0/inject_addrmatch
│ ├── mc -> ../../../devices/system/edac/mc
│ └── mc0 -> ../../../devices/system/edac/mc/mc0
├── drivers
├── drivers_autoprobe
├── drivers_probe
└── uevent
On a multi-memory controller system, the names "csrow%d" and "dimm%d"
should be under "mc%d", and not at the main hierarchy level.
So, we need to create a per-MC bus, in order to have its own namespace.
Reviewed-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Greg K H <gregkh@linuxfoundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The header files should be included in generated tarballs for archives.
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Using the __aligned() attribute in favor of __attribute__((aligned(size)))
Signed-off-by: Sam Hansen <solid.se7en@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Porting zram to use the pr_warn() function instead of the deprecated
pr_warning().
Signed-off-by: Sam Hansen <solid.se7en@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Documentation of various struct page fields
used by zsmalloc.
Changes for v2:
- Regroup descriptions as suggested by Konrad
Signed-off-by: Nitin Gupta <ngupta@vflare.org>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
xvmalloc can't handle PAGE_SIZE page so that zram have to
handle it specially but zsmalloc can do it so let's remove
unnecessary special handling code.
Quote from Nitin
"I think page vs handle distinction was added since xvmalloc could not
handle full page allocation. Now that zsmalloc allows full page
allocation, we can just use it for both cases. This would also allow
removing the ZRAM_UNCOMPRESSED flag. The only downside will be slightly
slower code path for full page allocation but this event is anyways
supposed to be rare, so should be fine."
1. This patch reduces code very much.
drivers/staging/zram/zram_drv.c | 104 +++++--------------------------------
drivers/staging/zram/zram_drv.h | 17 +-----
drivers/staging/zram/zram_sysfs.c | 6 +--
3 files changed, 15 insertions(+), 112 deletions(-)
2. change pages_expand with bad_compress so it can count
bad compression(above 75%) ratio.
3. remove zobj_header which is for back-reference for defragmentation
because firstly, it's not used at the moment and zsmalloc can't handle
bigger size than PAGE_SIZE so zram can't do it any more without redesign.
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Acked-by: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fd1a30de makes a bug that it uses (struct page *) as zsmalloc's handle
although it's a uncompressed page so that it can access random page,
return random data or even crashed by get_first_page in zs_map_object.
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Acked-by: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We should use unsigned long as handle instead of void * to avoid any
confusion. Without this, users may just treat zs_malloc return value as
a pointer and try to deference it.
This patch passed compile test(zram, zcache and ramster) and zram is
tested on qemu.
changelog
* from v2
- remove hval pointed out by Nitin
- based on next-20120607
* from v1
- change zcache's zv_create return value
- baesd on next-20120604
Cc: Dan Magenheimer <dan.magenheimer@oracle.com>
Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Acked-by: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These two places seem like they should be using bitwise OR instead of
bitwise AND. The first one is a noop which is equivalent to:
imr |= (0x0100 & 0x0004 & 0x0001);
The second is sets lcr2 to zero instead of just clearing the high bits.
lcr2 &= (0x00F0 & 0x000F);
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit fixes coding style issues including braces
position and line wrapping.
Signed-off-by: Adnan Ali <adnan.ali@codethink.co.uk>
Reviewed-by: Jannis Pohlmann <jannis.pohlmann@codethink.co.uk>
Acked-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Failures during the dmm probe can cause the kernel to crash. Moved
the spinlock to a global and moved list initializations immediately
after the allocation of the dmm private structure.
Signed-off-by: Andy Gross <andy.gross@ti.com>
Reviewed-by: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The logic was checking the sizeof the structure being allocated to
determine whether an alignment fixup was required. This isn't right;
what we actually care about is the alignment of the actual pointer that's
about to be returned. This became an issue recently because struct
edac_mc_layer has a size that is not zero modulo eight, so we were
taking the correctly-aligned pointer and forcing it to be misaligned.
On Tile this caused an alignment exception.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
During unload, don't cleanup the framebuffer if it is not valid.
Signed-off-by: Andy Gross <andy.gross@ti.com>
Reviewed-by: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The BUG_ON() in pack_sg_list() would get triggered only one time after we've
corrupted some memory by sg_set_buf() into an invalid sg buffer.
I'm still working on figuring out why I manage to trigger that bug...
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Ilan pointed out to me that ieee80211_start_next_roc()
already calls ieee80211_run_deferred_scan() if the list
of ROC items is empty, so there's no need to call it
again after calling ieee80211_start_next_roc().
Reported-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
