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| author |  David Howells <dhowells@redhat.com>
| 2023-05-22 14:50:13 +0100 |
|---|---|---|
| committer |  Jens Axboe <axboe@kernel.dk>
| 2023-05-24 08:42:16 -0600 |
| commit | 5bd4990f19b0fedbba5511b44c1cd1fdb7061f3c (patch) | |
| tree | 15a9e979ca668eef6f6786a5e53cf3bc5a9a68d4 /kernel/trace/trace.c | |
| parent | zonefs: Provide a splice-read wrapper (diff) | |
| download | linux-5bd4990f19b0fedbba5511b44c1cd1fdb7061f3c.tar.gz linux-5bd4990f19b0fedbba5511b44c1cd1fdb7061f3c.tar.bz2 linux-5bd4990f19b0fedbba5511b44c1cd1fdb7061f3c.zip | |
trace: Convert trace/seq to use copy_splice_read()
For the splice from the trace seq buffer, just use copy_splice_read().
In the future, something better can probably be done by gifting pages from
seq->buf into the pipe, but that would require changing seq->buf into a
vmap over an array of pages.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Christoph Hellwig <hch@lst.de>
cc: Al Viro <viro@zeniv.linux.org.uk>
cc: Jens Axboe <axboe@kernel.dk>
cc: Steven Rostedt <rostedt@goodmis.org>
cc: Masami Hiramatsu <mhiramat@kernel.org>
cc: linux-kernel@vger.kernel.org
cc: linux-trace-kernel@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
cc: linux-block@vger.kernel.org
cc: linux-mm@kvack.org
Link: https://lore.kernel.org/r/20230522135018.2742245-27-dhowells@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index ebc59781456a..c210d02fac97 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -5171,7 +5171,7 @@ static const struct file_operations tracing_fops = { .open = tracing_open, .read = seq_read, .read_iter = seq_read_iter, - .splice_read = generic_file_splice_read, + .splice_read = copy_splice_read, .write = tracing_write_stub, .llseek = tracing_lseek, .release = tracing_release, |