diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-11-29 15:24:47 +0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:32:24 +0200 |
| commit | caa909ac8ae902acf55f5352e2541008d945963f (patch) | |
| tree | 9651be1f9293d5c5aa00bf5d7cfbe7f8c5f65b88 /fs/f2fs/gc.h | |
| parent | 50a83a05586f62b3c48ea83126cc44df135c813a (diff) | |
f2fs: catch up to v4.4-rc1
The last patch is:
commit beaa57dd986d4f398728c060692fc2452895cfd8
Author: Chao Yu <chao2.yu@samsung.com>
Date: Thu Oct 22 18:24:12 2015 +0800
f2fs: fix to skip shrinking extent nodes
In f2fs_shrink_extent_tree we should stop shrink flow if we have already
shrunk enough nodes in extent cache.
Change-Id: I704e8e1a29a871604c63689d67c9005ab3ac6e5c
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/gc.h')
| -rw-r--r-- | fs/f2fs/gc.h | 52 |
1 files changed, 30 insertions, 22 deletions
diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h index 2c6a6bd08..b4a65be9f 100644 --- a/fs/f2fs/gc.h +++ b/fs/f2fs/gc.h @@ -13,23 +13,31 @@ * whether IO subsystem is idle * or not */ -#define GC_THREAD_MIN_SLEEP_TIME 30000 /* milliseconds */ -#define GC_THREAD_MAX_SLEEP_TIME 60000 -#define GC_THREAD_NOGC_SLEEP_TIME 300000 /* wait 5 min */ +#define DEF_GC_THREAD_MIN_SLEEP_TIME 30000 /* milliseconds */ +#define DEF_GC_THREAD_MAX_SLEEP_TIME 60000 +#define DEF_GC_THREAD_NOGC_SLEEP_TIME 300000 /* wait 5 min */ #define LIMIT_INVALID_BLOCK 40 /* percentage over total user space */ #define LIMIT_FREE_BLOCK 40 /* percentage over invalid + free space */ /* Search max. number of dirty segments to select a victim segment */ -#define MAX_VICTIM_SEARCH 20 +#define DEF_MAX_VICTIM_SEARCH 4096 /* covers 8GB */ struct f2fs_gc_kthread { struct task_struct *f2fs_gc_task; wait_queue_head_t gc_wait_queue_head; + + /* for gc sleep time */ + unsigned int min_sleep_time; + unsigned int max_sleep_time; + unsigned int no_gc_sleep_time; + + /* for changing gc mode */ + unsigned int gc_idle; }; -struct inode_entry { - struct list_head list; - struct inode *inode; +struct gc_inode_list { + struct list_head ilist; + struct radix_tree_root iroot; }; /* @@ -56,26 +64,26 @@ static inline block_t limit_free_user_blocks(struct f2fs_sb_info *sbi) return (long)(reclaimable_user_blocks * LIMIT_FREE_BLOCK) / 100; } -static inline long increase_sleep_time(long wait) +static inline void increase_sleep_time(struct f2fs_gc_kthread *gc_th, + long *wait) { - if (wait == GC_THREAD_NOGC_SLEEP_TIME) - return wait; + if (*wait == gc_th->no_gc_sleep_time) + return; - wait += GC_THREAD_MIN_SLEEP_TIME; - if (wait > GC_THREAD_MAX_SLEEP_TIME) - wait = GC_THREAD_MAX_SLEEP_TIME; - return wait; + *wait += gc_th->min_sleep_time; + if (*wait > gc_th->max_sleep_time) + *wait = gc_th->max_sleep_time; } -static inline long decrease_sleep_time(long wait) +static inline void decrease_sleep_time(struct f2fs_gc_kthread *gc_th, + long *wait) { - if (wait == GC_THREAD_NOGC_SLEEP_TIME) - wait = GC_THREAD_MAX_SLEEP_TIME; + if (*wait == gc_th->no_gc_sleep_time) + *wait = gc_th->max_sleep_time; - wait -= GC_THREAD_MIN_SLEEP_TIME; - if (wait <= GC_THREAD_MIN_SLEEP_TIME) - wait = GC_THREAD_MIN_SLEEP_TIME; - return wait; + *wait -= gc_th->min_sleep_time; + if (*wait <= gc_th->min_sleep_time) + *wait = gc_th->min_sleep_time; } static inline bool has_enough_invalid_blocks(struct f2fs_sb_info *sbi) @@ -83,7 +91,7 @@ static inline bool has_enough_invalid_blocks(struct f2fs_sb_info *sbi) block_t invalid_user_blocks = sbi->user_block_count - written_block_count(sbi); /* - * Background GC is triggered with the following condition. + * Background GC is triggered with the following conditions. * 1. There are a number of invalid blocks. * 2. There is not enough free space. */ |