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authorJiri Kosina <jkosina@suse.com>2024-03-13 21:17:33 +0100
committerJiri Kosina <jkosina@suse.com>2024-03-13 21:17:33 +0100
commit2e21dee6a46a66e4c2ced778485e1044101edee4 (patch)
treeb9a9565cf9e3954ad316c343715b43b401c51074 /include/linux/trace_seq.h
parent9a5b1521e2d0d7ace70c6e5eed073babcec91409 (diff)
parent90184f90c9ac559062a04aca72e5d05730164de0 (diff)
Merge branch 'for-6.9/amd-sfh' into for-linus
- assorted fixes and optimizations for amd-sfh (Basavaraj Natikar) Signed-off-by: Jiri Kosina <jkosina@suse.com>
Diffstat (limited to 'include/linux/trace_seq.h')
-rw-r--r--include/linux/trace_seq.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index 3691e0e76a1a..9ec229dfddaa 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -8,11 +8,14 @@
/*
* Trace sequences are used to allow a function to call several other functions
- * to create a string of data to use (up to a max of PAGE_SIZE).
+ * to create a string of data to use.
*/
+#define TRACE_SEQ_BUFFER_SIZE (PAGE_SIZE * 2 - \
+ (sizeof(struct seq_buf) + sizeof(size_t) + sizeof(int)))
+
struct trace_seq {
- char buffer[PAGE_SIZE];
+ char buffer[TRACE_SEQ_BUFFER_SIZE];
struct seq_buf seq;
size_t readpos;
int full;
@@ -21,7 +24,7 @@ struct trace_seq {
static inline void
trace_seq_init(struct trace_seq *s)
{
- seq_buf_init(&s->seq, s->buffer, PAGE_SIZE);
+ seq_buf_init(&s->seq, s->buffer, TRACE_SEQ_BUFFER_SIZE);
s->full = 0;
s->readpos = 0;
}