diff options
| author |   Christoph Hellwig <hch@lst.de> | 2020-05-20 17:58:12 +0200 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2020-05-20 12:11:26 -0400 |
| commit | f6dd975583bd8ce088400648fd9819e4691c8958 (patch) | |
| tree | 73f60b95a258fc83e535781510a66288e2190a52 /include/linux/pipe_fs_i.h | |
| parent | fs: simplify do_splice_from (diff) | |
| download | wireguard-linux-f6dd975583bd8ce088400648fd9819e4691c8958.tar.xz wireguard-linux-f6dd975583bd8ce088400648fd9819e4691c8958.zip | |
pipe: merge anon_pipe_buf*_ops
All the op vectors are exactly the same, they are just used to encode
packet or nomerge behavior. There already is a flag for the packet
behavior, so just add a new one to allow for merging. Inverting it vs
the previous nomerge special casing actually allows for much nicer code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/pipe_fs_i.h')
| -rw-r--r-- | include/linux/pipe_fs_i.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index ae58fad7f1e0..3f7b07b38824 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -8,6 +8,7 @@ #define PIPE_BUF_FLAG_ATOMIC 0x02 /* was atomically mapped */ #define PIPE_BUF_FLAG_GIFT 0x04 /* page is a gift */ #define PIPE_BUF_FLAG_PACKET 0x08 /* read() as a packet */ +#define PIPE_BUF_FLAG_CAN_MERGE 0x10 /* can merge buffers */ /** * struct pipe_buffer - a linux kernel pipe buffer @@ -233,7 +234,6 @@ int generic_pipe_buf_confirm(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_nosteal(struct pipe_inode_info *, struct pipe_buffer *); void generic_pipe_buf_release(struct pipe_inode_info *, struct pipe_buffer *); -void pipe_buf_mark_unmergeable(struct pipe_buffer *buf); extern const struct pipe_buf_operations nosteal_pipe_buf_ops; |