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authorMichel Lespinasse <walken@google.com>2020-06-08 21:33:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-09 09:39:14 -0700
commitc1e8d7c6a7a682e1405e3e242d32fc377fd196ff (patch)
treeef02402b77990834fbb5bdb1f146fc0393cc8987 /kernel/events
parent3e4e28c5a8f01ee4174d639e36ed155ade489a6f (diff)
downloadlinux-c1e8d7c6a7a682e1405e3e242d32fc377fd196ff.tar.bz2
mmap locking API: convert mmap_sem comments
Convert comments that reference mmap_sem to reference mmap_lock instead. [akpm@linux-foundation.org: fix up linux-next leftovers] [akpm@linux-foundation.org: s/lockaphore/lock/, per Vlastimil] [akpm@linux-foundation.org: more linux-next fixups, per Michel] Signed-off-by: Michel Lespinasse <walken@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: David Rientjes <rientjes@google.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Laurent Dufour <ldufour@linux.ibm.com> Cc: Liam Howlett <Liam.Howlett@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ying Han <yinghan@google.com> Link: http://lkml.kernel.org/r/20200520052908.204642-13-walken@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/events')
-rw-r--r--kernel/events/core.c6
-rw-r--r--kernel/events/uprobes.c4
2 files changed, 5 insertions, 5 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 2861addad657..856d98c36f56 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -1316,7 +1316,7 @@ static void put_ctx(struct perf_event_context *ctx)
* perf_event::child_mutex;
* perf_event_context::lock
* perf_event::mmap_mutex
- * mmap_sem
+ * mmap_lock
* perf_addr_filters_head::lock
*
* cpu_hotplug_lock
@@ -3080,7 +3080,7 @@ static int perf_event_stop(struct perf_event *event, int restart)
* pre-existing mappings, called once when new filters arrive via SET_FILTER
* ioctl;
* (2) perf_addr_filters_adjust(): adjusting filters' offsets based on newly
- * registered mapping, called for every new mmap(), with mm::mmap_sem down
+ * registered mapping, called for every new mmap(), with mm::mmap_lock down
* for reading;
* (3) perf_event_addr_filters_exec(): clearing filters' offsets in the process
* of exec.
@@ -9742,7 +9742,7 @@ static void perf_addr_filters_splice(struct perf_event *event,
/*
* Scan through mm's vmas and see if one of them matches the
* @filter; if so, adjust filter's address range.
- * Called with mm::mmap_sem down for reading.
+ * Called with mm::mmap_lock down for reading.
*/
static void perf_addr_filter_apply(struct perf_addr_filter *filter,
struct mm_struct *mm,
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index cd82e1ba6b9b..4f4993dcf17a 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -457,7 +457,7 @@ static int update_ref_ctr(struct uprobe *uprobe, struct mm_struct *mm,
* @vaddr: the virtual address to store the opcode.
* @opcode: opcode to be written at @vaddr.
*
- * Called with mm->mmap_sem held for write.
+ * Called with mm->mmap_lock held for write.
* Return 0 (success) or a negative errno.
*/
int uprobe_write_opcode(struct arch_uprobe *auprobe, struct mm_struct *mm,
@@ -1349,7 +1349,7 @@ static int delayed_ref_ctr_inc(struct vm_area_struct *vma)
}
/*
- * Called from mmap_region/vma_adjust with mm->mmap_sem acquired.
+ * Called from mmap_region/vma_adjust with mm->mmap_lock acquired.
*
* Currently we ignore all errors and always return 0, the callers
* can't handle the failure anyway.