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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-10-08 20:40:07 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-10-12 23:38:02 +0300 |
| commit | a125702326d9c3b753fe9c9b9727d3b3dd1cba4a (patch) | |
| tree | 7c6407982fb0db047c1a5233eed3c24b4df192f9 | |
| parent | c912a8298c16ef15aa2b7203022c935f439f488b (diff) | |
| download | linux-a125702326d9c3b753fe9c9b9727d3b3dd1cba4a.tar.xz | |
Revert "f2fs: do not skip dentry block writes"
The periodic checkpoint can resolve the previous issue.
So, now we can use this again to improve the reported performance regression:
https://lkml.org/lkml/2015/10/8/20
This reverts commit 15bec0ff5a9ba6d203178fa8772259df6207942a.
| -rw-r--r-- | fs/f2fs/data.c | 5 | ||||
| -rw-r--r-- | fs/f2fs/node.c | 5 | ||||
| -rw-r--r-- | fs/f2fs/node.h | 1 | ||||
| -rw-r--r-- | fs/f2fs/segment.h | 4 |
4 files changed, 14 insertions, 1 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index a903423e4cd5..bc04e9201fd6 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1340,6 +1340,11 @@ static int f2fs_write_data_pages(struct address_space *mapping, if (!get_dirty_pages(inode) && wbc->sync_mode == WB_SYNC_NONE) return 0; + if (S_ISDIR(inode->i_mode) && wbc->sync_mode == WB_SYNC_NONE && + get_dirty_pages(inode) < nr_pages_to_skip(sbi, DATA) && + available_free_memory(sbi, DIRTY_DENTS)) + goto skip_write; + /* during POR, we don't need to trigger writepage at all. */ if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) goto skip_write; diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 1fe49ca20757..4d9bedfe101c 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -52,6 +52,11 @@ bool available_free_memory(struct f2fs_sb_info *sbi, int type) mem_size = (nm_i->nat_cnt * sizeof(struct nat_entry)) >> PAGE_CACHE_SHIFT; res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2); + } else if (type == DIRTY_DENTS) { + if (sbi->sb->s_bdi->wb.dirty_exceeded) + return false; + mem_size = get_pages(sbi, F2FS_DIRTY_DENTS); + res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); } else if (type == INO_ENTRIES) { int i; diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h index 51c62edf2e89..7427e956ad81 100644 --- a/fs/f2fs/node.h +++ b/fs/f2fs/node.h @@ -118,6 +118,7 @@ static inline void raw_nat_from_node_info(struct f2fs_nat_entry *raw_ne, enum mem_type { FREE_NIDS, /* indicates the free nid list */ NAT_ENTRIES, /* indicates the cached nat entry */ + DIRTY_DENTS, /* indicates dirty dentry pages */ INO_ENTRIES, /* indicates inode entries */ EXTENT_CACHE, /* indicates extent cache */ BASE_CHECK, /* check kernel status */ diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index e9afb5884312..ee44d346ea44 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -699,7 +699,9 @@ static inline int nr_pages_to_skip(struct f2fs_sb_info *sbi, int type) if (sbi->sb->s_bdi->wb.dirty_exceeded) return 0; - if (type == NODE) + if (type == DATA) + return sbi->blocks_per_seg; + else if (type == NODE) return 3 * sbi->blocks_per_seg; else if (type == META) return MAX_BIO_BLOCKS(sbi); |