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authorLinus Torvalds2013-11-13 15:45:43 +0900
committerLinus Torvalds2013-11-13 15:45:43 +0900
commit5cbb3d216e2041700231bcfc383ee5f8b7fc8b74 (patch)
treea738fa82dbcefa9bd283c08bc67f38827be63937 /Documentation/vm/zswap.txt
parent9bc9ccd7db1c9f043f75380b5a5b94912046a60e (diff)
parent4e9b45a19241354daec281d7a785739829b52359 (diff)
Merge branch 'akpm' (patches from Andrew Morton)
Merge first patch-bomb from Andrew Morton: "Quite a lot of other stuff is banked up awaiting further next->mainline merging, but this batch contains: - Lots of random misc patches - OCFS2 - Most of MM - backlight updates - lib/ updates - printk updates - checkpatch updates - epoll tweaking - rtc updates - hfs - hfsplus - documentation - procfs - update gcov to gcc-4.7 format - IPC" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (269 commits) ipc, msg: fix message length check for negative values ipc/util.c: remove unnecessary work pending test devpts: plug the memory leak in kill_sb ./Makefile: export initial ramdisk compression config option init/Kconfig: add option to disable kernel compression drivers: w1: make w1_slave::flags long to avoid memory corruption drivers/w1/masters/ds1wm.cuse dev_get_platdata() drivers/memstick/core/ms_block.c: fix unreachable state in h_msb_read_page() drivers/memstick/core/mspro_block.c: fix attributes array allocation drivers/pps/clients/pps-gpio.c: remove redundant of_match_ptr kernel/panic.c: reduce 1 byte usage for print tainted buffer gcov: reuse kbasename helper kernel/gcov/fs.c: use pr_warn() kernel/module.c: use pr_foo() gcov: compile specific gcov implementation based on gcc version gcov: add support for gcc 4.7 gcov format gcov: move gcov structs definitions to a gcc version specific file kernel/taskstats.c: return -ENOMEM when alloc memory fails in add_del_listener() kernel/taskstats.c: add nla_nest_cancel() for failure processing between nla_nest_start() and nla_nest_end() kernel/sysctl_binary.c: use scnprintf() instead of snprintf() ...
Diffstat (limited to 'Documentation/vm/zswap.txt')
-rw-r--r--Documentation/vm/zswap.txt8
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/vm/zswap.txt b/Documentation/vm/zswap.txt
index 7e492d8aaeaf..00c3d31e7971 100644
--- a/Documentation/vm/zswap.txt
+++ b/Documentation/vm/zswap.txt
@@ -8,7 +8,7 @@ significant performance improvement if reads from the compressed cache are
faster than reads from a swap device.
NOTE: Zswap is a new feature as of v3.11 and interacts heavily with memory
-reclaim. This interaction has not be fully explored on the large set of
+reclaim. This interaction has not been fully explored on the large set of
potential configurations and workloads that exist. For this reason, zswap
is a work in progress and should be considered experimental.
@@ -23,7 +23,7 @@ Some potential benefits:
    drastically reducing life-shortening writes.
Zswap evicts pages from compressed cache on an LRU basis to the backing swap
-device when the compressed pool reaches it size limit. This requirement had
+device when the compressed pool reaches its size limit. This requirement had
been identified in prior community discussions.
To enabled zswap, the "enabled" attribute must be set to 1 at boot time. e.g.
@@ -37,7 +37,7 @@ the backing swap device in the case that the compressed pool is full.
Zswap makes use of zbud for the managing the compressed memory pool. Each
allocation in zbud is not directly accessible by address. Rather, a handle is
-return by the allocation routine and that handle must be mapped before being
+returned by the allocation routine and that handle must be mapped before being
accessed. The compressed memory pool grows on demand and shrinks as compressed
pages are freed. The pool is not preallocated.
@@ -56,7 +56,7 @@ in the swap_map goes to 0) the swap code calls the zswap invalidate function,
via frontswap, to free the compressed entry.
Zswap seeks to be simple in its policies. Sysfs attributes allow for one user
-controlled policies:
+controlled policy:
* max_pool_percent - The maximum percentage of memory that the compressed
pool can occupy.