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authorHiago De Franco <hiago.franco@toradex.com>2025-06-02 15:00:56 -0300
committerHiago De Franco <hiago.franco@toradex.com>2025-06-03 10:26:20 -0300
commitdefb81960f4fcb580b75bbc207e5440dad4376d6 (patch)
treeda4539935a24104d027d92a8f9afd519f2ee625a /kernel/watch_queue.c
parent5a6602cc6c3204b24470b2429e658c25638b10a9 (diff)
parent1b69a86802c7e77a7624fe4970ca7d382a785b8f (diff)
Merge branch '5.15-2.2.x-imx' into toradex_5.15-2.2.x-imxtoradex_5.15-2.2.x-imx
Conflicts: drivers/tty/serial/fsl_lpuart.c Signed-off-by: Hiago De Franco <hiago.franco@toradex.com>
Diffstat (limited to 'kernel/watch_queue.c')
-rw-r--r--kernel/watch_queue.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index ae31bf8d2feb..6ed37bc95cb7 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -274,6 +274,15 @@ long watch_queue_set_size(struct pipe_inode_info *pipe, unsigned int nr_notes)
if (ret < 0)
goto error;
+ /*
+ * pipe_resize_ring() does not update nr_accounted for watch_queue
+ * pipes, because the above vastly overprovisions. Set nr_accounted on
+ * and max_usage this pipe to the number that was actually charged to
+ * the user above via account_pipe_buffers.
+ */
+ pipe->max_usage = nr_pages;
+ pipe->nr_accounted = nr_pages;
+
ret = -ENOMEM;
pages = kcalloc(sizeof(struct page *), nr_pages, GFP_KERNEL);
if (!pages)