diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-26 09:52:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-26 09:52:05 -0700 |
| commit | 47a469421d792dcb91a1e73319d26134241953d2 (patch) | |
| tree | 6a388381a434ebe87fed2fbb10a53ced7a7ce8b5 | |
| parent | c13c81006314ad76c2b31824960a900385601b8b (diff) | |
| parent | 51229b495340bd7a02ce3622d1966829b67054ea (diff) | |
Merge branch 'akpm' (patches from Andrew)
Merge second patchbomb from Andrew Morton:
- most of the rest of MM
- lots of misc things
- procfs updates
- printk feature work
- updates to get_maintainer, MAINTAINERS, checkpatch
- lib/ updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (96 commits)
exit,stats: /* obey this comment */
coredump: add __printf attribute to cn_*printf functions
coredump: use from_kuid/kgid when formatting corename
fs/reiserfs: remove unneeded cast
NILFS2: support NFSv2 export
fs/befs/btree.c: remove unneeded initializations
fs/minix: remove unneeded cast
init/do_mounts.c: add create_dev() failure log
kasan: remove duplicate definition of the macro KASAN_FREE_PAGE
fs/efs: femove unneeded cast
checkpatch: emit "NOTE: <types>" message only once after multiple files
checkpatch: emit an error when there's a diff in a changelog
checkpatch: validate MODULE_LICENSE content
checkpatch: add multi-line handling for PREFER_ETHER_ADDR_COPY
checkpatch: suggest using eth_zero_addr() and eth_broadcast_addr()
checkpatch: fix processing of MEMSET issues
checkpatch: suggest using ether_addr_equal*()
checkpatch: avoid NOT_UNIFIED_DIFF errors on cover-letter.patch files
checkpatch: remove local from codespell path
checkpatch: add --showfile to allow input via pipe to show filenames
...
94 files changed, 2033 insertions, 1338 deletions
@@ -84,6 +84,7 @@ Mayuresh Janorkar <mayur@ti.com> Michael Buesch <m@bues.ch> Michel Dänzer <michel@tungstengraphics.com> Mitesh shah <mshah@teja.com> +Mohit Kumar <mohit.kumar@st.com> <mohit.kumar.dhaka@gmail.com> Morten Welinder <terra@gnome.org> Morten Welinder <welinder@anemone.rentec.com> Morten Welinder <welinder@darter.rentec.com> @@ -95,10 +96,12 @@ Patrick Mochel <mochel@digitalimplant.org> Peter A Jonsson <pj@ludd.ltu.se> Peter Oruba <peter@oruba.de> Peter Oruba <peter.oruba@amd.com> +Pratyush Anand <pratyush.anand@gmail.com> <pratyush.anand@st.com> Praveen BP <praveenbp@ti.com> Rajesh Shah <rajesh.shah@intel.com> Ralf Baechle <ralf@linux-mips.org> Ralf Wildenhues <Ralf.Wildenhues@gmx.de> +Randy Dunlap <rdunlap@infradead.org> <rdunlap@xenotime.net> Rémi Denis-Courmont <rdenis@simphalempin.com> Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Rudolf Marek <R.Marek@sh.cvut.cz> diff --git a/Documentation/ABI/testing/configfs-spear-pcie-gadget b/Documentation/ABI/testing/configfs-spear-pcie-gadget index 875988146a63..840c324ef34d 100644 --- a/Documentation/ABI/testing/configfs-spear-pcie-gadget +++ b/Documentation/ABI/testing/configfs-spear-pcie-gadget @@ -1,7 +1,7 @@ What: /config/pcie-gadget Date: Feb 2011 KernelVersion: 2.6.37 -Contact: Pratyush Anand <pratyush.anand@st.com> +Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Interface is used to configure selected dual mode PCIe controller diff --git a/Documentation/ABI/testing/dev-kmsg b/Documentation/ABI/testing/dev-kmsg index bb820be48179..fff817efa508 100644 --- a/Documentation/ABI/testing/dev-kmsg +++ b/Documentation/ABI/testing/dev-kmsg @@ -98,4 +98,13 @@ Description: The /dev/kmsg character device node provides userspace access logic is used internally when messages are printed to the console, /proc/kmsg or the syslog() syscall. + By default, kernel tries to avoid fragments by concatenating + when it can and fragments are rare; however, when extended + console support is enabled, the in-kernel concatenation is + disabled and /dev/kmsg output will contain more fragments. If + the log consumer performs concatenation, the end result + should be the same. In the future, the in-kernel concatenation + may be removed entirely and /dev/kmsg users are recommended to + implement fragment handling. + Users: dmesg(1), userspace kernel log consumers diff --git a/Documentation/ABI/testing/sysfs-bus-usb-lvstest b/Documentation/ABI/testing/sysfs-bus-usb-lvstest index aae68fc2d842..5151290cf8e7 100644 --- a/Documentation/ABI/testing/sysfs-bus-usb-lvstest +++ b/Documentation/ABI/testing/sysfs-bus-usb-lvstest @@ -4,14 +4,14 @@ driver is bound with root hub device. What: /sys/bus/usb/devices/.../get_dev_desc Date: March 2014 -Contact: Pratyush Anand <pratyush.anand@st.com> +Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Write to this node to issue "Get Device Descriptor" for Link Layer Validation device. It is needed for TD.7.06. What: /sys/bus/usb/devices/.../u1_timeout Date: March 2014 -Contact: Pratyush Anand <pratyush.anand@st.com> +Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Set "U1 timeout" for the downstream port where Link Layer Validation device is connected. Timeout value must be between 0 @@ -19,7 +19,7 @@ Description: What: /sys/bus/usb/devices/.../u2_timeout Date: March 2014 -Contact: Pratyush Anand <pratyush.anand@st.com> +Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Set "U2 timeout" for the downstream port where Link Layer Validation device is connected. Timeout value must be between 0 @@ -27,21 +27,21 @@ Description: What: /sys/bus/usb/devices/.../hot_reset Date: March 2014 -Contact: Pratyush Anand <pratyush.anand@st.com> +Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Write to this node to issue "Reset" for Link Layer Validation device. It is needed for TD.7.29, TD.7.31, TD.7.34 and TD.7.35. What: /sys/bus/usb/devices/.../u3_entry Date: March 2014 -Contact: Pratyush Anand <pratyush.anand@st.com> +Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Write to this node to issue "U3 entry" for Link Layer Validation device. It is needed for TD.7.35 and TD.7.36. What: /sys/bus/usb/devices/.../u3_exit Date: March 2014 -Contact: Pratyush Anand <pratyush.anand@st.com> +Contact: Pratyush Anand <pratyush.anand@gmail.com> Description: Write to this node to issue "U3 exit" for Link Layer Validation device. It is needed for TD.7.36. diff --git a/Documentation/ABI/testing/sysfs-class-zram b/Documentation/ABI/testing/sysfs-class-zram new file mode 100644 index 000000000000..48ddacbe0e69 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-zram @@ -0,0 +1,24 @@ +What: /sys/class/zram-control/ +Date: August 2015 +KernelVersion: 4.2 +Contact: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> +Description: + The zram-control/ class sub-directory belongs to zram + device class + +What: /sys/class/zram-control/hot_add +Date: August 2015 +KernelVersion: 4.2 +Contact: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> +Description: + RO attribute. Read operation will cause zram to add a new + device and return its device id back to user (so one can + use /dev/zram<id>), or error code. + +What: /sys/class/zram-control/hot_remove +Date: August 2015 +KernelVersion: 4.2 +Contact: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> +Description: + WO attribute. Remove a specific /dev/zramX device, where X + is a device_id provided by user. diff --git a/Documentation/blockdev/zram.txt b/Documentation/blockdev/zram.txt index 48a183e29988..c4de576093af 100644 --- a/Documentation/blockdev/zram.txt +++ b/Documentation/blockdev/zram.txt @@ -19,7 +19,9 @@ Following shows a typical sequence of steps for using zram. 1) Load Module: modprobe zram num_devices=4 This creates 4 devices: /dev/zram{0,1,2,3} - (num_devices parameter is optional. Default: 1) + +num_devices parameter is optional and tells zram how many devices should be +pre-created. Default: 1. 2) Set max number of compression streams Compression backend may use up to max_comp_streams compression streams, @@ -97,7 +99,24 @@ size of the disk when not in use so a huge zram is wasteful. mkfs.ext4 /dev/zram1 mount /dev/zram1 /tmp -7) Stats: +7) Add/remove zram devices + +zram provides a control interface, which enables dynamic (on-demand) device +addition and removal. + +In order to add a new /dev/zramX device, perform read operation on hot_add +attribute. This will return either new device's device id (meaning that you +can use /dev/zram<id>) or error code. + +Example: + cat /sys/class/zram-control/hot_add + 1 + +To remove the existing /dev/zramX device (where X is a device id) +execute + echo X > /sys/class/zram-control/hot_remove + +8) Stats: Per-device statistics are exported as various nodes under /sys/block/zram<id>/ A brief description of exported device attritbutes. For more details please @@ -126,7 +145,7 @@ mem_used_max RW the maximum amount memory zram have consumed to mem_limit RW the maximum amount of memory ZRAM can use to store the compressed data num_migrated RO the number of objects migrated migrated by compaction - +compact WO trigger memory compaction WARNING ======= @@ -172,11 +191,11 @@ line of text and contains the following stats separated by whitespace: zero_pages num_migrated -8) Deactivate: +9) Deactivate: swapoff /dev/zram0 umount /dev/zram1 -9) Reset: +10) Reset: Write any positive value to 'reset' sysfs node echo 1 > /sys/block/zram0/reset echo 1 > /sys/block/zram1/reset diff --git a/Documentation/misc-devices/spear-pcie-gadget.txt b/Documentation/misc-devices/spear-pcie-gadget.txt index 02c13ef5e908..89b88dee4143 100644 --- a/Documentation/misc-devices/spear-pcie-gadget.txt +++ b/Documentation/misc-devices/spear-pcie-gadget.txt @@ -2,7 +2,7 @@ Spear PCIe Gadget Driver: Author ============= -Pratyush Anand (pratyush.anand@st.com) +Pratyush Anand (pratyush.anand@gmail.com) Location ============ diff --git a/Documentation/networking/netconsole.txt b/Documentation/networking/netconsole.txt index a5d574a9ae09..30409a36e95d 100644 --- a/Documentation/networking/netconsole.txt +++ b/Documentation/networking/netconsole.txt @@ -2,6 +2,7 @@ started by Ingo Molnar <mingo@redhat.com>, 2001.09.17 2.6 port and netpoll api by Matt Mackall <mpm@selenic.com>, Sep 9 2003 IPv6 support by Cong Wang <xiyou.wangcong@gmail.com>, Jan 1 2013 +Extended console support by Tejun Heo <tj@kernel.org>, May 1 2015 Please send bug reports to Matt Mackall <mpm@selenic.com> Satyam Sharma <satyam.sharma@gmail.com>, and Cong Wang <xiyou.wangcong@gmail.com> @@ -24,9 +25,10 @@ Sender and receiver configuration: It takes a string configuration parameter "netconsole" in the following format: - netconsole=[src-port]@[src-ip]/[<dev>],[tgt-port]@<tgt-ip>/[tgt-macaddr] + netconsole=[+][src-port]@[src-ip]/[<dev>],[tgt-port]@<tgt-ip>/[tgt-macaddr] where + + if present, enable extended console support src-port source for UDP packets (defaults to 6665) src-ip source IP to use (interface address) dev network interface (eth0) @@ -107,6 +109,7 @@ To remove a target: The interface exposes these parameters of a netconsole target to userspace: enabled Is this target currently enabled? (read-write) + extended Extended mode enabled (read-write) dev_name Local network interface name (read-write) local_port Source UDP port to use (read-write) remote_port Remote agent's UDP port (read-write) @@ -132,6 +135,36 @@ You can also update the local interface dynamically. This is especially useful if you want to use interfaces that have newly come up (and may not have existed when netconsole was loaded / initialized). +Extended console: +================= + +If '+' is prefixed to the configuration line or "extended" config file +is set to 1, extended console support is enabled. An example boot +param follows. + |