From: Chad Goodman <chad.goodman@gmail.com>
Date: Wed, 28 Nov 2012 10:38:58 +0000 (-0800)
Subject: VM: move common VM settings to defconfig
X-Git-Url: https://projects.ziggy471.com/git/gitweb.cgi?p=ziggy471-sgn2-jb.git;a=commitdiff;h=9e70927b4b2b409f01bfd59fee514a2517255c57

VM: move common VM settings to defconfig

Signed-off-by: Ziggy <ziggy@ziggy471.com>
---

--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -4,6 +4,11 @@
 
 menu "File systems"
 
+config VFS_CACHE_PRESSURE
+	int "vfs Cache Pressure"
+	default 70
+	help
+
 if BLOCK
 
 source "fs/ext2/Kconfig"
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -76,7 +76,7 @@
  *   dentry1->d_lock
  *     dentry2->d_lock
  */
-int sysctl_vfs_cache_pressure __read_mostly = 100;
+int sysctl_vfs_cache_pressure __read_mostly = CONFIG_VFS_CACHE_PRESSURE;
 EXPORT_SYMBOL_GPL(sysctl_vfs_cache_pressure);
 
 static __cacheline_aligned_in_smp DEFINE_SPINLOCK(dcache_lru_lock);
--- a/fs/fuse/control.c
+++ b/fs/fuse/control.c
@@ -123,7 +123,7 @@ static ssize_t fuse_conn_max_background_
 					      const char __user *buf,
 					      size_t count, loff_t *ppos)
 {
-	unsigned val;
+	unsigned val = 0;
 	ssize_t ret;
 
 	ret = fuse_conn_limit_write(file, buf, count, ppos, &val,
@@ -160,7 +160,7 @@ static ssize_t fuse_conn_congestion_thre
 						    const char __user *buf,
 						    size_t count, loff_t *ppos)
 {
-	unsigned val;
+	unsigned val = 0;
 	ssize_t ret;
 
 	ret = fuse_conn_limit_write(file, buf, count, ppos, &val,
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -1,3 +1,23 @@
+config VM_DIRTY_RATIO
+	int "vm_dirty_ratio"
+	default 15
+	help
+
+config VM_DIRTY_BACKGROUND_RATIO
+	int "vm_dirty_background_ratio"
+	default 3
+	help
+
+config VM_DIRTY_WRITBACK_INT
+	int "vm_dirty_writeback_interval"
+	default 500
+	help
+
+config VM_DIRTY_EXPIRE_INT
+	int "vm_dirty_expure_interval"
+	default 3000
+	help
+
 config SELECT_MEMORY_MODEL
 	def_bool y
 	depends on EXPERIMENTAL || ARCH_SELECT_MEMORY_MODEL
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -61,7 +61,7 @@ static inline long sync_writeback_pages(
 /*
  * Start background writeback (via writeback threads) at this percentage
  */
-int dirty_background_ratio = 10;
+int dirty_background_ratio = CONFIG_VM_DIRTY_BACKGROUND_RATIO;
 
 /*
  * dirty_background_bytes starts at 0 (disabled) so that it is a function of
@@ -78,7 +78,7 @@ int vm_highmem_is_dirtyable;
 /*
  * The generator of dirty data starts writeback at this percentage
  */
-int vm_dirty_ratio = 20;
+int vm_dirty_ratio = CONFIG_VM_DIRTY_RATIO;
 
 /*
  * vm_dirty_bytes starts at 0 (disabled) so that it is a function of
@@ -89,12 +89,12 @@ unsigned long vm_dirty_bytes;
 /*
  * The interval between `kupdate'-style writebacks
  */
-unsigned int dirty_writeback_interval = 5 * 100; /* centiseconds */
+unsigned int dirty_writeback_interval = CONFIG_VM_DIRTY_WRITBACK_INT; /* centiseconds */
 
 /*
  * The longest time for which data is allowed to remain dirty
  */
-unsigned int dirty_expire_interval = 30 * 100; /* centiseconds */
+unsigned int dirty_expire_interval = CONFIG_VM_DIRTY_EXPIRE_INT; /* centiseconds */
 
 /*
  * Flag that makes the machine dump writes/reads and block dirtyings.