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| author | Yunlei He <heyunlei@huawei.com> | 2017-11-17 16:13:38 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-01-02 19:27:27 -0800 |
| commit | 66e833613715721f347757ad32f19cb4e26e7363 (patch) | |
| tree | 58ffc828a9018c4c057db982038d9c5f5088b647 /fs/f2fs/node.c | |
| parent | 292c196a3695e57980dc79dea3863462fa4831c4 (diff) | |
| download | talos-obmc-linux-66e833613715721f347757ad32f19cb4e26e7363.tar.gz talos-obmc-linux-66e833613715721f347757ad32f19cb4e26e7363.zip | |
f2fs: no need to read nat block if nat_block_bitmap is set
No need to read nat block if nat_block_bitmap is set.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/node.c')
| -rw-r--r-- | fs/f2fs/node.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 2ce0321ab9c0..93bd89a9a56f 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1930,9 +1930,6 @@ static void scan_nat_page(struct f2fs_sb_info *sbi, unsigned int nat_ofs = NAT_BLOCK_OFFSET(start_nid); int i; - if (test_bit_le(nat_ofs, nm_i->nat_block_bitmap)) - return; - __set_bit_le(nat_ofs, nm_i->nat_block_bitmap); i = start_nid % NAT_ENTRY_PER_BLOCK; @@ -2037,10 +2034,13 @@ static void __build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount) down_read(&nm_i->nat_tree_lock); while (1) { - struct page *page = get_current_nat_page(sbi, nid); + if (!test_bit_le(NAT_BLOCK_OFFSET(nid), + nm_i->nat_block_bitmap)) { + struct page *page = get_current_nat_page(sbi, nid); - scan_nat_page(sbi, page, nid); - f2fs_put_page(page, 1); + scan_nat_page(sbi, page, nid); + f2fs_put_page(page, 1); + } nid += (NAT_ENTRY_PER_BLOCK - (nid % NAT_ENTRY_PER_BLOCK)); if (unlikely(nid >= nm_i->max_nid)) |
