diff options
| author | Andrew Morton <akpm@digeo.com> | 2002-09-19 08:36:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.transmeta.com> | 2002-09-19 08:36:34 -0700 |
| commit | da1eca6061198690ea08118d78fde70216dcf093 (patch) | |
| tree | 6ee637d0160948bc595dbd5ea02b7d8c5d249fe3 /include/linux | |
| parent | 6fda85f284986ede5458990e5b82115336d4f694 (diff) | |
[PATCH] remove /proc/sys/vm/dirty_sync_thresh
This was designed to be a really sterm throttling threshold: if dirty
memory reaches this level then perform writeback and actually wait on
it.
It doesn't work. Because memory dirtiers are required to perform
writeback if the amount of dirty AND writeback memory exceeds
dirty_async_ratio.
So kill it, and rely just on the request queues being appropriately
scaled to the machine size (they are).
This is basically what 2.4 does.
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/sysctl.h | 11 | ||||
| -rw-r--r-- | include/linux/writeback.h | 8 |
2 files changed, 8 insertions, 11 deletions
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 3127165e7c13..606f1385a37e 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -147,12 +147,11 @@ enum VM_PAGE_CLUSTER=10, /* int: set number of pages to swap together */ VM_DIRTY_BACKGROUND=11, /* dirty_background_ratio */ VM_DIRTY_ASYNC=12, /* dirty_async_ratio */ - VM_DIRTY_SYNC=13, /* dirty_sync_ratio */ - VM_DIRTY_WB_CS=14, /* dirty_writeback_centisecs */ - VM_DIRTY_EXPIRE_CS=15, /* dirty_expire_centisecs */ - VM_NR_PDFLUSH_THREADS=16, /* nr_pdflush_threads */ - VM_OVERCOMMIT_RATIO=17, /* percent of RAM to allow overcommit in */ - VM_PAGEBUF=18 /* struct: Control pagebuf parameters */ + VM_DIRTY_WB_CS=13, /* dirty_writeback_centisecs */ + VM_DIRTY_EXPIRE_CS=14, /* dirty_expire_centisecs */ + VM_NR_PDFLUSH_THREADS=15, /* nr_pdflush_threads */ + VM_OVERCOMMIT_RATIO=16, /* percent of RAM to allow overcommit in */ + VM_PAGEBUF=17, /* struct: Control pagebuf parameters */ }; diff --git a/include/linux/writeback.h b/include/linux/writeback.h index b12971f8eeb0..c35b96eb6a90 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -27,10 +27,9 @@ static inline int current_is_pdflush(void) * fs/fs-writeback.c */ enum writeback_sync_modes { - WB_SYNC_NONE = 0, /* Don't wait on anything */ - WB_SYNC_LAST = 1, /* Wait on the last-written mapping */ - WB_SYNC_ALL = 2, /* Wait on every mapping */ - WB_SYNC_HOLD = 3, /* Hold the inode on sb_dirty for sys_sync() */ + WB_SYNC_NONE, /* Don't wait on anything */ + WB_SYNC_ALL, /* Wait on every mapping */ + WB_SYNC_HOLD, /* Hold the inode on sb_dirty for sys_sync() */ }; /* @@ -65,7 +64,6 @@ static inline void wait_on_inode(struct inode *inode) /* These 5 are exported to sysctl. */ extern int dirty_background_ratio; extern int dirty_async_ratio; -extern int dirty_sync_ratio; extern int dirty_writeback_centisecs; extern int dirty_expire_centisecs; |