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authorMike Rapoport (Microsoft) <rppt@kernel.org>2025-07-13 10:17:28 +0300
committerAndrew Morton <akpm@linux-foundation.org>2025-08-02 12:06:12 -0700
commitab674b6871b049aab2e86d1d7375526368ed175a (patch)
tree56438fc70ff9ddba398e9c5169c683a2c6d0fe01 /mm/execmem.c
parent3bd4e0ac61b2fd87d64572e866f58940d1d5fbdf (diff)
execmem: drop writable parameter from execmem_fill_trapping_insns()
After update of execmem_cache_free() that made memory writable before updating it, there is no need to update read only memory, so the writable parameter to execmem_fill_trapping_insns() is not needed. Drop it. Link: https://lkml.kernel.org/r/20250713071730.4117334-7-rppt@kernel.org Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Daniel Gomez <da.gomez@samsung.com> Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org> Cc: Petr Pavlu <petr.pavlu@suse.com> Cc: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/execmem.c')
-rw-r--r--mm/execmem.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/execmem.c b/mm/execmem.c
index 9abf76a63a79..1785d7f435e4 100644
--- a/mm/execmem.c
+++ b/mm/execmem.c
@@ -304,7 +304,7 @@ static int execmem_cache_populate(struct execmem_range *range, size_t size)
goto err_free_mem;
/* fill memory with instructions that will trap */
- execmem_fill_trapping_insns(p, alloc_size, /* writable = */ true);
+ execmem_fill_trapping_insns(p, alloc_size);
err = set_memory_rox((unsigned long)p, vm->nr_pages);
if (err)
@@ -363,7 +363,7 @@ static int __execmem_cache_free(struct ma_state *mas, void *ptr, gfp_t gfp_mask)
if (err)
return err;
- execmem_fill_trapping_insns(ptr, size, /* writable = */ true);
+ execmem_fill_trapping_insns(ptr, size);
execmem_restore_rox(ptr, size);
err = execmem_cache_add_locked(ptr, size, gfp_mask);