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| author | Chao Yu <yuchao0@huawei.com> | 2017-06-29 23:20:45 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-07-07 10:34:44 -0700 |
| commit | 0771fcc71c0c28bf31ac5c2c863b9f0de0fdf00d (patch) | |
| tree | 249a29fd536d6bc646e51f99b77340add6eb898b /fs/f2fs | |
| parent | 6915ea9d8dd8690570fe4a9864b898447a4f3da0 (diff) | |
| download | linux-0771fcc71c0c28bf31ac5c2c863b9f0de0fdf00d.tar.gz linux-0771fcc71c0c28bf31ac5c2c863b9f0de0fdf00d.tar.bz2 linux-0771fcc71c0c28bf31ac5c2c863b9f0de0fdf00d.zip | |
f2fs: skip ->writepages for {mete,node}_inode during recovery
Skip ->writepages in prior to ->writepage for {meta,node}_inode during
recovery, hence unneeded loop in ->writepages can be avoided.
Moreover, check SBI_POR_DOING earlier while writebacking pages.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/checkpoint.c | 3 | ||||
| -rw-r--r-- | fs/f2fs/data.c | 13 | ||||
| -rw-r--r-- | fs/f2fs/node.c | 3 |
3 files changed, 13 insertions, 6 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 12559a4b6c24..954917d582f8 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -269,6 +269,9 @@ static int f2fs_write_meta_pages(struct address_space *mapping, struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); long diff, written; + if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) + goto skip_write; + /* collect a number of dirty meta pages and write together */ if (wbc->for_kupdate || get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META)) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 7d3af48d34a9..cffcfa8d2571 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1492,6 +1492,9 @@ static int __write_data_page(struct page *page, bool *submitted, trace_f2fs_writepage(page, DATA); + if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) + goto redirty_out; + if (page->index < end_index) goto write; @@ -1505,8 +1508,6 @@ static int __write_data_page(struct page *page, bool *submitted, zero_user_segment(page, offset, PAGE_SIZE); write: - if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) - goto redirty_out; if (f2fs_is_drop_cache(inode)) goto out; /* we should not write 0'th page having journal header */ @@ -1754,6 +1755,10 @@ static int f2fs_write_data_pages(struct address_space *mapping, if (!get_dirty_pages(inode) && wbc->sync_mode == WB_SYNC_NONE) return 0; + /* during POR, we don't need to trigger writepage at all. */ + if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) + goto skip_write; + 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)) @@ -1763,10 +1768,6 @@ static int f2fs_write_data_pages(struct address_space *mapping, if (is_inode_flag_set(inode, FI_DO_DEFRAG)) 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; - trace_f2fs_writepages(mapping->host, wbc, DATA); /* to avoid spliting IOs due to mixed WB_SYNC_ALL and WB_SYNC_NONE */ diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index f6f46be139f4..fd57ffd88508 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1687,6 +1687,9 @@ static int f2fs_write_node_pages(struct address_space *mapping, struct blk_plug plug; long diff; + if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) + goto skip_write; + /* balancing f2fs's metadata in background */ f2fs_balance_fs_bg(sbi); |