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| author | Robert Richter <robert.richter@amd.com> | 2008-07-22 21:08:52 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-26 11:48:03 +0200 |
| commit | 5e11f98dcebc40c9d67e8d21a5f47248444c17a8 (patch) | |
| tree | 7f333ec131d340ac8938d12cd1fc932022ef9808 /drivers/oprofile/buffer_sync.c | |
| parent | 73185e0a5d11d729d451692034fbe55a9eba7468 (diff) | |
| download | linux-5e11f98dcebc40c9d67e8d21a5f47248444c17a8.tar.gz linux-5e11f98dcebc40c9d67e8d21a5f47248444c17a8.tar.bz2 linux-5e11f98dcebc40c9d67e8d21a5f47248444c17a8.zip | |
OProfile: moving increment_tail() in buffer_sync.c
Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: oprofile-list <oprofile-list@lists.sourceforge.net>
Cc: Barry Kasindorf <barry.kasindorf@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/oprofile/buffer_sync.c')
| -rw-r--r-- | drivers/oprofile/buffer_sync.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c index 69a732778ba7..615929f6f0c2 100644 --- a/drivers/oprofile/buffer_sync.c +++ b/drivers/oprofile/buffer_sync.c @@ -268,6 +268,17 @@ lookup_dcookie(struct mm_struct *mm, unsigned long addr, off_t *offset) return cookie; } +static void increment_tail(struct oprofile_cpu_buffer *b) +{ + unsigned long new_tail = b->tail_pos + 1; + + rmb(); + + if (new_tail < b->buffer_size) + b->tail_pos = new_tail; + else + b->tail_pos = 0; +} static unsigned long last_cookie = INVALID_COOKIE; @@ -417,19 +428,6 @@ static unsigned long get_slots(struct oprofile_cpu_buffer *b) } -static void increment_tail(struct oprofile_cpu_buffer *b) -{ - unsigned long new_tail = b->tail_pos + 1; - - rmb(); - - if (new_tail < b->buffer_size) - b->tail_pos = new_tail; - else - b->tail_pos = 0; -} - - /* Move tasks along towards death. Any tasks on dead_tasks * will definitely have no remaining references in any * CPU buffers at this point, because we use two lists, |