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| author | Chao Yu <yuchao0@huawei.com> | 2017-04-18 14:27:39 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-04-19 21:00:45 +0300 |
| commit | d84d1cbdec6b5d9ba391079a111572197db66d54 (patch) | |
| tree | 42ee95201e0ed0d2eef6a79051e02bbaaaf15f0a /fs/f2fs/segment.c | |
| parent | 001c584cca6fce8e91f19eca88781b8c16d1ea42 (diff) | |
| download | linux-d84d1cbdec6b5d9ba391079a111572197db66d54.tar.xz | |
f2fs: add undiscard blocks stat
This patch adds to account undiscard blocks.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Diffstat (limited to 'fs/f2fs/segment.c')
| -rw-r--r-- | fs/f2fs/segment.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index f88271643ec4..dd07c5c91ac4 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -695,6 +695,7 @@ static struct discard_cmd *__create_discard_cmd(struct f2fs_sb_info *sbi, init_completion(&dc->wait); list_add_tail(&dc->list, pend_list); atomic_inc(&dcc->discard_cmd_cnt); + dcc->undiscard_blks += len; return dc; } @@ -723,6 +724,7 @@ static void __detach_discard_cmd(struct discard_cmd_control *dcc, list_del(&dc->list); rb_erase(&dc->rb_node, &dcc->root); + dcc->undiscard_blks -= dc->len; kmem_cache_free(discard_cmd_slab, dc); @@ -830,8 +832,11 @@ static void __punch_discard_cmd(struct f2fs_sb_info *sbi, return; } + dcc->undiscard_blks -= di.len; + if (blkaddr > di.lstart) { dc->len = blkaddr - dc->lstart; + dcc->undiscard_blks += dc->len; __relocate_discard_cmd(dcc, dc); f2fs_bug_on(sbi, !__check_rb_tree_consistence(sbi, &dcc->root)); modified = true; @@ -849,6 +854,7 @@ static void __punch_discard_cmd(struct f2fs_sb_info *sbi, dc->lstart++; dc->len--; dc->start++; + dcc->undiscard_blks += dc->len; __relocate_discard_cmd(dcc, dc); f2fs_bug_on(sbi, !__check_rb_tree_consistence(sbi, &dcc->root)); @@ -910,6 +916,7 @@ static void __update_discard_tree_range(struct f2fs_sb_info *sbi, prev_dc->bdev == bdev && __is_discard_back_mergeable(&di, &prev_dc->di)) { prev_dc->di.len += di.len; + dcc->undiscard_blks += di.len; __relocate_discard_cmd(dcc, prev_dc); f2fs_bug_on(sbi, !__check_rb_tree_consistence(sbi, &dcc->root)); @@ -924,6 +931,7 @@ static void __update_discard_tree_range(struct f2fs_sb_info *sbi, next_dc->di.lstart = di.lstart; next_dc->di.len += di.len; next_dc->di.start = di.start; + dcc->undiscard_blks += di.len; __relocate_discard_cmd(dcc, next_dc); if (tdc) __remove_discard_cmd(sbi, tdc); @@ -1357,6 +1365,7 @@ static int create_discard_cmd_control(struct f2fs_sb_info *sbi) atomic_set(&dcc->discard_cmd_cnt, 0); dcc->nr_discards = 0; dcc->max_discards = 0; + dcc->undiscard_blks = 0; dcc->root = RB_ROOT; init_waitqueue_head(&dcc->discard_wait_queue); |