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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-04 22:40:58 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-04 22:40:58 +0400
commit80cc38b16389849a6e06441ace4530f6b2497c3c (patch)
tree1dabc02b0a1faa6b640de20e38aa31bb5d0c443f /Documentation/networking/netlink_mmap.txt
parent3366dd9fa887ebbda4872e9554f853eaeda764be (diff)
parent83a35e360433b58791bc9c4e288cace466d62e3a (diff)
downloadlinux-80cc38b16389849a6e06441ace4530f6b2497c3c.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina: "The usual stuff from trivial tree" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits) treewide: relase -> release Documentation/cgroups/memory.txt: fix stat file documentation sysctl/net.txt: delete reference to obsolete 2.4.x kernel spinlock_api_smp.h: fix preprocessor comments treewide: Fix typo in printk doc: device tree: clarify stuff in usage-model.txt. open firmware: "/aliasas" -> "/aliases" md: bcache: Fixed a typo with the word 'arithmetic' irq/generic-chip: fix a few kernel-doc entries frv: Convert use of typedef ctl_table to struct ctl_table sgi: xpc: Convert use of typedef ctl_table to struct ctl_table doc: clk: Fix incorrect wording Documentation/arm/IXP4xx fix a typo Documentation/networking/ieee802154 fix a typo Documentation/DocBook/media/v4l fix a typo Documentation/video4linux/si476x.txt fix a typo Documentation/virtual/kvm/api.txt fix a typo Documentation/early-userspace/README fix a typo Documentation/video4linux/soc-camera.txt fix a typo lguest: fix CONFIG_PAE -> CONFIG_x86_PAE in comment ...
Diffstat (limited to 'Documentation/networking/netlink_mmap.txt')
-rw-r--r--Documentation/networking/netlink_mmap.txt12
1 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/networking/netlink_mmap.txt b/Documentation/networking/netlink_mmap.txt
index 1c2dab409625..9bd0f5211e9a 100644
--- a/Documentation/networking/netlink_mmap.txt
+++ b/Documentation/networking/netlink_mmap.txt
@@ -54,7 +54,7 @@ it will use an allocated socket buffer as usual and the contents will be
copied to the ring on transmission, nullifying most of the performance gains.
Dumps of kernel databases automatically support memory mapped I/O.
-Conversion of the transmit path involves changing message contruction to
+Conversion of the transmit path involves changing message construction to
use memory from the TX ring instead of (usually) a buffer declared on the
stack and setting up the frame header approriately. Optionally poll() can
be used to wait for free frames in the TX ring.
@@ -65,8 +65,8 @@ Structured and definitions for using memory mapped I/O are contained in
RX and TX rings
----------------
-Each ring contains a number of continous memory blocks, containing frames of
-fixed size dependant on the parameters used for ring setup.
+Each ring contains a number of continuous memory blocks, containing frames of
+fixed size dependent on the parameters used for ring setup.
Ring: [ block 0 ]
[ frame 0 ]
@@ -80,7 +80,7 @@ Ring: [ block 0 ]
[ frame 2 * n + 1 ]
The blocks are only visible to the kernel, from the point of view of user-space
-the ring just contains the frames in a continous memory zone.
+the ring just contains the frames in a continuous memory zone.
The ring parameters used for setting up the ring are defined as follows:
@@ -91,7 +91,7 @@ struct nl_mmap_req {
unsigned int nm_frame_nr;
};
-Frames are grouped into blocks, where each block is a continous region of memory
+Frames are grouped into blocks, where each block is a continuous region of memory
and holds nm_block_size / nm_frame_size frames. The total number of frames in
the ring is nm_frame_nr. The following invariants hold:
@@ -113,7 +113,7 @@ Some parameters are constrained, specifically:
- nm_frame_nr must equal the actual number of frames as specified above.
-When the kernel can't allocate phsyically continous memory for a ring block,
+When the kernel can't allocate physically continuous memory for a ring block,
it will fall back to use physically discontinous memory. This might affect
performance negatively, in order to avoid this the nm_frame_size parameter
should be chosen to be as small as possible for the required frame size and