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treewide: mark stuff as __ro_after_init

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__read_mostly predates __ro_after_init. Many variables which are marked
__read_mostly should have been __ro_after_init from day 1.

Also, mark some stuff as "const" and "__init" while I'm at it.

[akpm@linux-foundation.org: revert sysctl_nr_open_min, sysctl_nr_open_max changes due to arm warning]
[akpm@linux-foundation.org: coding-style cleanups]
Link: https://lkml.kernel.org/r/4f6bb9c0-abba-4ee4-a7aa-89265e886817@p183
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Alexey Dobriyan
2023-10-11 19:55:00 +03:00
committed by Andrew Morton
parent 1b13a70305
commit 68279f9c9f
26 changed files with 64 additions and 63 deletions
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4
fs/buffer.c
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@@ -2988,13 +2988,13 @@ EXPORT_SYMBOL(try_to_free_buffers);
/*
* Buffer-head allocation
*/
static struct kmem_cache *bh_cachep __read_mostly;
static struct kmem_cache *bh_cachep __ro_after_init;
/*
* Once the number of bh's in the machine exceeds this level, we start
* stripping them in writeback.
*/
static unsigned long max_buffer_heads;
static unsigned long max_buffer_heads __ro_after_init;
int buffer_heads_over_limit;