return 0;
trace_f2fs_sync_file_enter(inode);
+
+ /* if fdatasync is triggered, let's do in-place-update */
+ if (datasync)
+ set_inode_flag(fi, FI_NEED_IPU);
+
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (datasync)
+ clear_inode_flag(fi, FI_NEED_IPU);
if (ret) {
trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
return ret;
}
+ /*
+ * if there is no written data, don't waste time to write recovery info.
+ */
+ if (!is_inode_flag_set(fi, FI_APPEND_WRITE) &&
+ !exist_written_data(sbi, inode->i_ino, APPEND_INO)) {
+ if (is_inode_flag_set(fi, FI_UPDATE_WRITE) ||
+ exist_written_data(sbi, inode->i_ino, UPDATE_INO))
+ goto flush_out;
+ goto out;
+ }
+
/* guarantee free sections for fsync */
f2fs_balance_fs(sbi);
ret = wait_on_node_pages_writeback(sbi, inode->i_ino);
if (ret)
goto out;
+
+ /* once recovery info is written, don't need to tack this */
+ remove_dirty_inode(sbi, inode->i_ino, APPEND_INO);
+ clear_inode_flag(fi, FI_APPEND_WRITE);
+flush_out:
+ remove_dirty_inode(sbi, inode->i_ino, UPDATE_INO);
+ clear_inode_flag(fi, FI_UPDATE_WRITE);
ret = f2fs_issue_flush(F2FS_SB(inode->i_sb));
}
out:
/* find first dirty page index */
pagevec_init(&pvec, 0);
- nr_pages = pagevec_lookup_tag(&pvec, mapping, &pgofs, PAGECACHE_TAG_DIRTY, 1);
- pgofs = nr_pages ? pvec.pages[0]->index: LONG_MAX;
+ nr_pages = pagevec_lookup_tag(&pvec, mapping, &pgofs,
+ PAGECACHE_TAG_DIRTY, 1);
+ pgofs = nr_pages ? pvec.pages[0]->index : LONG_MAX;
pagevec_release(&pvec);
return pgofs;
}
}
}
- end_offset = IS_INODE(dn.node_page) ?
- ADDRS_PER_INODE(F2FS_I(inode)) : ADDRS_PER_BLOCK;
+ end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
/* find data/hole in dnode block */
for (; dn.ofs_in_node < end_offset;
return;
lock_page(page);
- if (unlikely(page->mapping != inode->i_mapping)) {
- f2fs_put_page(page, 1);
- return;
- }
+ if (unlikely(!PageUptodate(page) ||
+ page->mapping != inode->i_mapping))
+ goto out;
+
f2fs_wait_on_page_writeback(page, DATA);
zero_user(page, offset, PAGE_CACHE_SIZE - offset);
set_page_dirty(page);
+
+out:
f2fs_put_page(page, 1);
}
off_start = offset & (PAGE_CACHE_SIZE - 1);
off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
+ f2fs_lock_op(sbi);
+
for (index = pg_start; index <= pg_end; index++) {
struct dnode_of_data dn;
- f2fs_lock_op(sbi);
+ if (index == pg_end && !off_end)
+ goto noalloc;
+
set_new_dnode(&dn, inode, NULL, NULL, 0);
ret = f2fs_reserve_block(&dn, index);
- f2fs_unlock_op(sbi);
if (ret)
break;
-
+noalloc:
if (pg_start == pg_end)
new_size = offset + len;
else if (index == pg_start && off_start)
i_size_read(inode) < new_size) {
i_size_write(inode, new_size);
mark_inode_dirty(inode);
- f2fs_write_inode(inode, NULL);
+ update_inode_page(inode);
}
+ f2fs_unlock_op(sbi);
return ret;
}