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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>
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parent
6915ea9d8d
commit
0771fcc71c
3 changed files with 13 additions and 6 deletions
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@ -269,6 +269,9 @@ static int f2fs_write_meta_pages(struct address_space *mapping,
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struct f2fs_sb_info *sbi = F2FS_M_SB(mapping);
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long diff, written;
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if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
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goto skip_write;
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/* collect a number of dirty meta pages and write together */
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if (wbc->for_kupdate ||
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get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META))
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@ -1492,6 +1492,9 @@ static int __write_data_page(struct page *page, bool *submitted,
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trace_f2fs_writepage(page, DATA);
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if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
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goto redirty_out;
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if (page->index < end_index)
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goto write;
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@ -1505,8 +1508,6 @@ static int __write_data_page(struct page *page, bool *submitted,
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zero_user_segment(page, offset, PAGE_SIZE);
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write:
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if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
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goto redirty_out;
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if (f2fs_is_drop_cache(inode))
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goto out;
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/* we should not write 0'th page having journal header */
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@ -1754,6 +1755,10 @@ static int f2fs_write_data_pages(struct address_space *mapping,
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if (!get_dirty_pages(inode) && wbc->sync_mode == WB_SYNC_NONE)
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return 0;
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/* during POR, we don't need to trigger writepage at all. */
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if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
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goto skip_write;
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if (S_ISDIR(inode->i_mode) && wbc->sync_mode == WB_SYNC_NONE &&
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get_dirty_pages(inode) < nr_pages_to_skip(sbi, DATA) &&
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available_free_memory(sbi, DIRTY_DENTS))
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@ -1763,10 +1768,6 @@ static int f2fs_write_data_pages(struct address_space *mapping,
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if (is_inode_flag_set(inode, FI_DO_DEFRAG))
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goto skip_write;
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/* during POR, we don't need to trigger writepage at all. */
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if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
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goto skip_write;
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trace_f2fs_writepages(mapping->host, wbc, DATA);
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/* to avoid spliting IOs due to mixed WB_SYNC_ALL and WB_SYNC_NONE */
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@ -1687,6 +1687,9 @@ static int f2fs_write_node_pages(struct address_space *mapping,
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struct blk_plug plug;
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long diff;
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if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
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goto skip_write;
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/* balancing f2fs's metadata in background */
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f2fs_balance_fs_bg(sbi);
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