If we use mount option "-o max_inline=sectorsize", say 4096, indeed even for a fresh fs, say nodesize is 16k, we can not make the first 4k data completely inline, I found this conditon causing this issue: !compressed_size && (actual_end & (root->sectorsize - 1)) == 0
If it retuns true, we'll not make data inline. For 4k sectorsize, 0~4094 dara range, we can make it inline, but 0~4095, it can not. I don't think this limition is useful, so here remove it which will make max inline data can be equal to sectorsize. Signed-off-by: Wang Xiaoguang <wangxg.f...@cn.fujitsu.com> --- fs/btrfs/inode.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index ea15520..c0db393 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -267,8 +267,6 @@ static noinline int cow_file_range_inline(struct btrfs_root *root, if (start > 0 || actual_end > root->sectorsize || data_len > BTRFS_MAX_INLINE_DATA_SIZE(root) || - (!compressed_size && - (actual_end & (root->sectorsize - 1)) == 0) || end + 1 < isize || data_len > root->fs_info->max_inline) { return 1; -- 2.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html