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| author | Al Viro <viro@zeniv.linux.org.uk> | 2014-04-11 12:01:03 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-04-12 07:04:19 -0400 |
| commit | a786c06d9f2719203c00b3d97b21f9a96980d0b5 (patch) | |
| tree | 29a5e2ea710084cc115ec496e667658704ab72c2 /kernel/trace/trace.c | |
| parent | 19dfc1f5f2ef03a52aa30c8257c5745edef23f55 (diff) | |
| download | blackbird-op-linux-a786c06d9f2719203c00b3d97b21f9a96980d0b5.tar.gz blackbird-op-linux-a786c06d9f2719203c00b3d97b21f9a96980d0b5.zip | |
missing bits of "splice: fix racy pipe->buffers uses"
that commit has fixed only the parts of that mess in fs/splice.c itself;
there had been more in several other ->splice_read() instances...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 7511de35257f..27924caaa124 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4410,7 +4410,7 @@ static ssize_t tracing_splice_read_pipe(struct file *filp, trace_access_lock(iter->cpu_file); /* Fill as many pages as possible. */ - for (i = 0, rem = len; i < pipe->buffers && rem; i++) { + for (i = 0, rem = len; i < spd.nr_pages_max && rem; i++) { spd.pages[i] = alloc_page(GFP_KERNEL); if (!spd.pages[i]) break; @@ -5267,7 +5267,7 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos, trace_access_lock(iter->cpu_file); entries = ring_buffer_entries_cpu(iter->trace_buffer->buffer, iter->cpu_file); - for (i = 0; i < pipe->buffers && len && entries; i++, len -= PAGE_SIZE) { + for (i = 0; i < spd.nr_pages_max && len && entries; i++, len -= PAGE_SIZE) { struct page *page; int r; |
