From 5740c99e9d30b81fcc478797e7215c61e241f44e Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Fri, 6 Jul 2018 23:57:03 +0200 Subject: [PATCH] vfs: dedupe: return int Signed-off-by: Miklos Szeredi --- fs/btrfs/ctree.h | 4 ++-- fs/btrfs/ioctl.c | 10 +++------- fs/ocfs2/file.c | 17 ++++++----------- fs/read_write.c | 4 ++-- fs/xfs/xfs_file.c | 19 ++----------------- include/linux/fs.h | 2 +- 6 files changed, 16 insertions(+), 40 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 118346aceea9..1c7c13334423 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3247,8 +3247,8 @@ void btrfs_get_block_group_info(struct list_head *groups_list, struct btrfs_ioctl_space_info *space); void btrfs_update_ioctl_balance_args(struct btrfs_fs_info *fs_info, struct btrfs_ioctl_balance_args *bargs); -ssize_t btrfs_dedupe_file_range(struct file *src_file, u64 loff, u64 olen, - struct file *dst_file, u64 dst_loff); +int btrfs_dedupe_file_range(struct file *src_file, u64 loff, u64 olen, + struct file *dst_file, u64 dst_loff); /* file.c */ int __init btrfs_auto_defrag_init(void); diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index c2837a32d689..94dc8e6c44ce 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -3600,13 +3600,12 @@ static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen, return ret; } -ssize_t btrfs_dedupe_file_range(struct file *src_file, u64 loff, u64 olen, - struct file *dst_file, u64 dst_loff) +int btrfs_dedupe_file_range(struct file *src_file, u64 loff, u64 olen, + struct file *dst_file, u64 dst_loff) { struct inode *src = file_inode(src_file); struct inode *dst = file_inode(dst_file); u64 bs = BTRFS_I(src)->root->fs_info->sb->s_blocksize; - ssize_t res; if (WARN_ON_ONCE(bs < PAGE_SIZE)) { /* @@ -3617,10 +3616,7 @@ ssize_t btrfs_dedupe_file_range(struct file *src_file, u64 loff, u64 olen, return -EINVAL; } - res = btrfs_extent_same(src, loff, olen, dst, dst_loff); - if (res) - return res; - return olen; + return btrfs_extent_same(src, loff, olen, dst, dst_loff); } static int clone_finish_inode_update(struct btrfs_trans_handle *trans, diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 255f758af03a..f96f018463f7 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2537,19 +2537,14 @@ static int ocfs2_file_clone_range(struct file *file_in, len, false); } -static ssize_t ocfs2_file_dedupe_range(struct file *src_file, - u64 loff, - u64 len, - struct file *dst_file, - u64 dst_loff) +static int ocfs2_file_dedupe_range(struct file *src_file, + u64 loff, + u64 len, + struct file *dst_file, + u64 dst_loff) { - int error; - - error = ocfs2_reflink_remap_range(src_file, loff, dst_file, dst_loff, + return ocfs2_reflink_remap_range(src_file, loff, dst_file, dst_loff, len, true); - if (error) - return error; - return len; } const struct inode_operations ocfs2_file_iops = { diff --git a/fs/read_write.c b/fs/read_write.c index f43bb12b4759..fa64e51ef4cf 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1976,7 +1976,7 @@ int vfs_dedupe_file_range(struct file *file, struct file_dedupe_range *same) u16 count = same->dest_count; struct file *dst_file; loff_t dst_off; - ssize_t deduped; + int deduped; if (!(file->f_mode & FMODE_READ)) return -EINVAL; @@ -2056,7 +2056,7 @@ int vfs_dedupe_file_range(struct file *file, struct file_dedupe_range *same) else if (deduped < 0) info->status = deduped; else - info->bytes_deduped += deduped; + info->bytes_deduped += len; } next_file: diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index a3e7767a5715..547ef7e8aec1 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -933,7 +933,7 @@ xfs_file_clone_range( len, false); } -STATIC ssize_t +STATIC int xfs_file_dedupe_range( struct file *src_file, u64 loff, @@ -941,23 +941,8 @@ xfs_file_dedupe_range( struct file *dst_file, u64 dst_loff) { - struct inode *srci = file_inode(src_file); - u64 max_dedupe; - int error; - - /* - * Since we have to read all these pages in to compare them, cut - * it off at MAX_RW_COUNT/2 rounded down to the nearest block. - * That means we won't do more than MAX_RW_COUNT IO per request. - */ - max_dedupe = (MAX_RW_COUNT >> 1) & ~(i_blocksize(srci) - 1); - if (len > max_dedupe) - len = max_dedupe; - error = xfs_reflink_remap_range(src_file, loff, dst_file, dst_loff, + return xfs_reflink_remap_range(src_file, loff, dst_file, dst_loff, len, true); - if (error) - return error; - return len; } STATIC int diff --git a/include/linux/fs.h b/include/linux/fs.h index 5c91108846db..b81c4b7e339f 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1749,7 +1749,7 @@ struct file_operations { loff_t, size_t, unsigned int); int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64); - ssize_t (*dedupe_file_range)(struct file *, u64, u64, struct file *, + int (*dedupe_file_range)(struct file *, u64, u64, struct file *, u64); } __randomize_layout; -- 2.45.2