[PATCH 1/2] f2fs: enable to gc page whose inode already atomic commit

[Yunlong Song]

If inode has already started to atomic commit, then set_page_dirty will
not mix the gc pages with the inmem atomic pages, so the page can be
gced safely.

Signed-off-by: Yunlong Song <yunlong.s...@huawei.com>
---
 fs/f2fs/data.c | 5 ++---
 fs/f2fs/gc.c   | 6 ++++--
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 7435830..edafcb6 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1580,14 +1580,13 @@ bool should_update_outplace(struct inode *inode, struct 
f2fs_io_info *fio)
                return true;
        if (S_ISDIR(inode->i_mode))
                return true;
-       if (f2fs_is_atomic_file(inode))
-               return true;
        if (fio) {
                if (is_cold_data(fio->page))
                        return true;
                if (IS_ATOMIC_WRITTEN_PAGE(fio->page))
                        return true;
-       }
+       } else if (f2fs_is_atomic_file(inode))
+               return true;
        return false;
 }
 
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index b9d93fd..84ab3ff 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -622,7 +622,8 @@ static void move_data_block(struct inode *inode, block_t 
bidx,
        if (!check_valid_map(F2FS_I_SB(inode), segno, off))
                goto out;
 
-       if (f2fs_is_atomic_file(inode))
+       if (f2fs_is_atomic_file(inode) &&
+               !f2fs_is_commit_atomic_write(inode))
                goto out;
 
        if (f2fs_is_pinned_file(inode)) {
@@ -729,7 +730,8 @@ static void move_data_page(struct inode *inode, block_t 
bidx, int gc_type,
        if (!check_valid_map(F2FS_I_SB(inode), segno, off))
                goto out;
 
-       if (f2fs_is_atomic_file(inode))
+       if (f2fs_is_atomic_file(inode) &&
+               !f2fs_is_commit_atomic_write(inode))
                goto out;
        if (f2fs_is_pinned_file(inode)) {
                if (gc_type == FG_GC)
-- 
1.8.5.2