From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, ddstreet@ieee.org,
geert@linux-m68k.org, hch@lst.de, hughd@google.com,
jgross@suse.com, Konrad.wilk@oracle.com, linux-mm@kvack.org,
mm-commits@vger.kernel.org, sjenning@redhat.com,
torvalds@linux-foundation.org, vitaly.wool@konsulko.com,
willy@infradead.org
Subject: [patch 67/69] mm: mark swap_lock and swap_active_head static
Date: Fri, 21 Jan 2022 22:15:07 -0800 [thread overview]
Message-ID: <20220122061507.g8juJ_8I0%akpm@linux-foundation.org> (raw)
In-Reply-To: <20220121221021.60533b009c357d660791476e@linux-foundation.org>
From: Christoph Hellwig <hch@lst.de>
Subject: mm: mark swap_lock and swap_active_head static
swap_lock and swap_active_head are only used in swapfile.c, so mark them
static.
Link: https://lkml.kernel.org/r/20211224062246.1258487-12-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Konrad Rzeszutek Wilk <Konrad.wilk@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/swapfile.h | 2 --
mm/swapfile.c | 4 ++--
2 files changed, 2 insertions(+), 4 deletions(-)
--- a/include/linux/swapfile.h~mm-mark-swap_lock-and-swap_active_head-static
+++ a/include/linux/swapfile.h
@@ -6,8 +6,6 @@
* these were static in swapfile.c but frontswap.c needs them and we don't
* want to expose them to the dozens of source files that include swap.h
*/
-extern spinlock_t swap_lock;
-extern struct plist_head swap_active_head;
extern struct swap_info_struct *swap_info[];
extern unsigned long generic_max_swapfile_size(void);
extern unsigned long max_swapfile_size(void);
--- a/mm/swapfile.c~mm-mark-swap_lock-and-swap_active_head-static
+++ a/mm/swapfile.c
@@ -49,7 +49,7 @@ static bool swap_count_continued(struct
unsigned char);
static void free_swap_count_continuations(struct swap_info_struct *);
-DEFINE_SPINLOCK(swap_lock);
+static DEFINE_SPINLOCK(swap_lock);
static unsigned int nr_swapfiles;
atomic_long_t nr_swap_pages;
/*
@@ -71,7 +71,7 @@ static const char Unused_offset[] = "Unu
* all active swap_info_structs
* protected with swap_lock, and ordered by priority.
*/
-PLIST_HEAD(swap_active_head);
+static PLIST_HEAD(swap_active_head);
/*
* all available (active, not full) swap_info_structs
_
next prev parent reply other threads:[~2022-01-22 6:15 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-22 6:10 incoming Andrew Morton
2022-01-22 6:10 ` [patch 01/69] mm/migrate.c: rework migration_entry_wait() to not take a pageref Andrew Morton
2022-01-22 6:10 ` [patch 02/69] sysctl: add a new register_sysctl_init() interface Andrew Morton
2022-01-22 6:10 ` [patch 03/69] sysctl: move some boundary constants from sysctl.c to sysctl_vals Andrew Morton
2022-01-22 6:11 ` [patch 04/69] hung_task: move hung_task sysctl interface to hung_task.c Andrew Morton
2022-01-22 6:11 ` [patch 05/69] watchdog: move watchdog sysctl interface to watchdog.c Andrew Morton
2022-01-22 6:11 ` [patch 06/69] sysctl: make ngroups_max const Andrew Morton
2022-01-22 6:11 ` [patch 07/69] sysctl: use const for typically used max/min proc sysctls Andrew Morton
2022-01-22 6:11 ` [patch 08/69] sysctl: use SYSCTL_ZERO to replace some static int zero uses Andrew Morton
2022-01-22 6:11 ` [patch 09/69] aio: move aio sysctl to aio.c Andrew Morton
2022-01-22 6:11 ` [patch 10/69] dnotify: move dnotify sysctl to dnotify.c Andrew Morton
2022-01-22 6:11 ` [patch 11/69] hpet: simplify subdirectory registration with register_sysctl() Andrew Morton
2022-01-22 6:11 ` [patch 12/69] i915: " Andrew Morton
2022-01-22 6:11 ` [patch 13/69] macintosh/mac_hid.c: " Andrew Morton
2022-01-22 6:11 ` [patch 14/69] ocfs2: " Andrew Morton
2022-01-22 6:11 ` [patch 15/69] test_sysctl: " Andrew Morton
2022-01-22 6:11 ` [patch 16/69] inotify: " Andrew Morton
2022-01-22 6:12 ` [patch 17/69] cdrom: " Andrew Morton
2022-01-22 6:12 ` [patch 18/69] eventpoll: simplify sysctl declaration " Andrew Morton
2022-01-22 6:12 ` [patch 19/69] firmware_loader: move firmware sysctl to its own files Andrew Morton
2022-01-22 6:12 ` [patch 20/69] random: move the random sysctl declarations to its own file Andrew Morton
2022-01-22 6:12 ` [patch 21/69] sysctl: add helper to register a sysctl mount point Andrew Morton
2022-01-22 6:12 ` [patch 22/69] fs: move binfmt_misc sysctl to its own file Andrew Morton
2022-02-07 13:27 ` [PATCH] Fix regression due to "fs: move binfmt_misc sysctl to its own file" Domenico Andreoli
2022-02-07 21:46 ` Luis Chamberlain
2022-02-07 22:53 ` Tong Zhang
2022-02-08 17:20 ` Luis Chamberlain
2022-02-09 7:31 ` Domenico Andreoli
2022-02-09 7:49 ` [PATCH v2] " Domenico Andreoli
2022-02-09 7:55 ` Tong Zhang
2022-02-13 15:34 ` Ido Schimmel
2022-02-13 21:09 ` Tong Zhang
2022-02-13 21:10 ` Tong Zhang
2022-02-14 7:47 ` Ido Schimmel
2022-02-08 6:46 ` [PATCH] " Thorsten Leemhuis
2022-01-22 6:12 ` [patch 23/69] printk: move printk sysctl to printk/sysctl.c Andrew Morton
2022-01-22 6:12 ` [patch 24/69] scsi/sg: move sg-big-buff sysctl to scsi/sg.c Andrew Morton
2022-01-22 6:12 ` [patch 25/69] stackleak: move stack_erasing sysctl to stackleak.c Andrew Morton
2022-01-22 6:12 ` [patch 26/69] sysctl: share unsigned long const values Andrew Morton
2022-01-22 6:12 ` [patch 27/69] fs: move inode sysctls to its own file Andrew Morton
2022-01-22 6:12 ` [patch 28/69] fs: move fs stat sysctls to file_table.c Andrew Morton
2022-01-22 6:12 ` [patch 29/69] fs: move dcache sysctls to its own file Andrew Morton
2022-01-22 6:13 ` [patch 30/69] sysctl: move maxolduid as a sysctl specific const Andrew Morton
2022-01-22 6:13 ` [patch 31/69] fs: move shared sysctls to fs/sysctls.c Andrew Morton
2022-01-22 6:13 ` [patch 32/69] fs: move locking sysctls where they are used Andrew Morton
2022-01-22 6:13 ` [patch 33/69] fs: move namei sysctls to its own file Andrew Morton
2022-01-22 6:13 ` [patch 34/69] fs: move fs/exec.c sysctls into " Andrew Morton
2022-01-22 6:13 ` [patch 35/69] fs: move pipe sysctls to is " Andrew Morton
2022-01-22 6:13 ` [patch 36/69] sysctl: add and use base directory declarer and registration helper Andrew Morton
2022-01-22 6:13 ` [patch 37/69] fs: move namespace sysctls and declare fs base directory Andrew Morton
2022-01-22 6:13 ` [patch 38/69] kernel/sysctl.c: rename sysctl_init() to sysctl_init_bases() Andrew Morton
2022-01-22 6:13 ` [patch 39/69] printk: fix build warning when CONFIG_PRINTK=n Andrew Morton
2022-01-22 6:13 ` [patch 40/69] fs/coredump: move coredump sysctls into its own file Andrew Morton
2022-01-22 6:13 ` [patch 41/69] kprobe: move sysctl_kprobes_optimization to kprobes.c Andrew Morton
2022-01-22 6:13 ` [patch 42/69] kernel/sysctl.c: remove unused variable ten_thousand Andrew Morton
2022-01-22 6:13 ` [patch 43/69] sysctl: returns -EINVAL when a negative value is passed to proc_doulongvec_minmax Andrew Morton
2022-01-22 6:13 ` [patch 44/69] zsmalloc: introduce some helper functions Andrew Morton
2022-01-22 6:13 ` [patch 45/69] zsmalloc: rename zs_stat_type to class_stat_type Andrew Morton
2022-01-22 6:13 ` [patch 46/69] zsmalloc: decouple class actions from zspage works Andrew Morton
2022-01-22 6:14 ` [patch 47/69] zsmalloc: introduce obj_allocated Andrew Morton
2022-01-22 6:14 ` [patch 48/69] zsmalloc: move huge compressed obj from page to zspage Andrew Morton
2022-01-22 6:14 ` [patch 49/69] zsmalloc: remove zspage isolation for migration Andrew Morton
2022-01-22 6:14 ` [patch 50/69] locking/rwlocks: introduce write_lock_nested Andrew Morton
2022-01-22 6:14 ` [patch 51/69] zsmalloc: replace per zpage lock with pool->migrate_lock Andrew Morton
2022-01-22 6:14 ` [patch 52/69] zsmalloc: replace get_cpu_var with local_lock Andrew Morton
2022-01-22 6:14 ` [patch 53/69] fs: proc: store PDE()->data into inode->i_private Andrew Morton
2022-01-22 6:14 ` [patch 54/69] proc: remove PDE_DATA() completely Andrew Morton
2022-01-22 6:14 ` [patch 55/69] lib/stackdepot: allow optional init and stack_table allocation by kvmalloc() Andrew Morton
2022-01-22 6:14 ` [patch 56/69] lib/stackdepot: always do filter_irq_stacks() in stack_depot_save() Andrew Morton
2022-01-22 6:14 ` [patch 57/69] mm: remove cleancache Andrew Morton
2022-01-22 6:14 ` [patch 58/69] frontswap: remove frontswap_writethrough Andrew Morton
2022-01-22 6:14 ` [patch 59/69] frontswap: remove frontswap_tmem_exclusive_gets Andrew Morton
2022-01-22 6:14 ` [patch 60/69] frontswap: remove frontswap_shrink Andrew Morton
2022-01-22 6:14 ` [patch 61/69] frontswap: remove frontswap_curr_pages Andrew Morton
2022-01-22 6:14 ` [patch 62/69] frontswap: simplify frontswap_init Andrew Morton
2022-01-22 6:14 ` [patch 63/69] frontswap: remove the frontswap exports Andrew Morton
2022-01-22 6:14 ` [patch 64/69] mm: simplify try_to_unuse Andrew Morton
2022-01-22 6:15 ` [patch 65/69] frontswap: remove frontswap_test Andrew Morton
2022-01-22 6:15 ` [patch 66/69] frontswap: simplify frontswap_register_ops Andrew Morton
2022-01-22 6:15 ` Andrew Morton [this message]
2022-01-22 6:15 ` [patch 68/69] frontswap: remove support for multiple ops Andrew Morton
2022-01-22 6:15 ` [patch 69/69] mm: hide the FRONTSWAP Kconfig symbol Andrew Morton
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