diff options
| author | Uladzislau Rezki (Sony) <[email protected]> | 2022-10-18 18:10:50 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2022-11-09 01:37:17 +0000 |
| commit | cf243da6ab3987b65b95357194926a31415095b8 (patch) | |
| tree | b2a507c87f6e3ad75acb23d0e551a7b082e5e7de /mm/vmalloc.c | |
| parent | mm: vmalloc: add free_vmap_area_noflush trace event (diff) | |
| download | kernel-cf243da6ab3987b65b95357194926a31415095b8.tar.gz kernel-cf243da6ab3987b65b95357194926a31415095b8.zip | |
mm: vmalloc: use trace_alloc_vmap_area event
This is for debug purpose and is called when an allocation attempt occurs.
This event gives some information about:
- start address of allocated area;
- size that is requested;
- alignment that is required;
- vstart/vend restriction;
- if an allocation fails.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Uladzislau Rezki (Sony) <[email protected]>
Reviewed-by: Steven Rostedt (Google) <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Oleksiy Avramchenko <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'mm/vmalloc.c')
| -rw-r--r-- | mm/vmalloc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index ccaa461998f3..849563d334fb 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -43,6 +43,9 @@ #include <asm/tlbflush.h> #include <asm/shmparam.h> +#define CREATE_TRACE_POINTS +#include <trace/events/vmalloc.h> + #include "internal.h" #include "pgalloc-track.h" @@ -1620,6 +1623,8 @@ retry: size, align, vstart, vend); spin_unlock(&free_vmap_area_lock); + trace_alloc_vmap_area(addr, size, align, vstart, vend, addr == vend); + /* * If an allocation fails, the "vend" address is * returned. Therefore trigger the overflow path. |