From: Wang Xiaoguang <wangxg.f...@cn.fujitsu.com> Introduce inode_need_dedupe() to implement per-file online dedupe control.
Signed-off-by: Wang Xiaoguang <wangxg.f...@cn.fujitsu.com> --- fs/btrfs/inode.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 96790d0..c80fd74 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -708,6 +708,18 @@ static void end_dedupe_extent(struct inode *inode, u64 start, } } +static inline int inode_need_dedupe(struct btrfs_fs_info *fs_info, + struct inode *inode) +{ + if (!fs_info->dedupe_enabled) + return 0; + + if (BTRFS_I(inode)->flags & BTRFS_INODE_NODEDUPE) + return 0; + + return 1; +} + /* * phase two of compressed writeback. This is the ordered portion * of the code, which only gets called in the order the work was @@ -1680,7 +1692,8 @@ static int run_delalloc_range(struct inode *inode, struct page *locked_page, } else if (BTRFS_I(inode)->flags & BTRFS_INODE_PREALLOC && !force_cow) { ret = run_delalloc_nocow(inode, locked_page, start, end, page_started, 0, nr_written); - } else if (!inode_need_compress(inode) && !fs_info->dedupe_enabled) { + } else if (!inode_need_compress(inode) && + !inode_need_dedupe(fs_info, inode)) { ret = cow_file_range(inode, locked_page, start, end, page_started, nr_written, 1, NULL); } else { -- 2.7.4 -- 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