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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 01/10] tty/sysrq: emergency_thaw_all does not depend on CONFIG_BLOCK
Date: Sat, 20 Jun 2020 09:16:35 +0200	[thread overview]
Message-ID: <20200620071644.463185-2-hch@lst.de> (raw)
In-Reply-To: <20200620071644.463185-1-hch@lst.de>

We can also thaw non-block file systems.  Remove the CONFIG_BLOCK in
sysrq.c after making the prototype available unconditionally.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/tty/sysrq.c | 2 --
 include/linux/fs.h  | 2 +-
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 7c95afa905a083..a8e39b2cdd5526 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -403,7 +403,6 @@ static const struct sysrq_key_op sysrq_moom_op = {
 	.enable_mask	= SYSRQ_ENABLE_SIGNAL,
 };
 
-#ifdef CONFIG_BLOCK
 static void sysrq_handle_thaw(int key)
 {
 	emergency_thaw_all();
@@ -414,7 +413,6 @@ static const struct sysrq_key_op sysrq_thaw_op = {
 	.action_msg	= "Emergency Thaw of all frozen filesystems",
 	.enable_mask	= SYSRQ_ENABLE_SIGNAL,
 };
-#endif
 
 static void sysrq_handle_kill(int key)
 {
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3f881a892ea746..7f40dbafbf6d49 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2593,7 +2593,6 @@ extern void invalidate_bdev(struct block_device *);
 extern void iterate_bdevs(void (*)(struct block_device *, void *), void *);
 extern int sync_blockdev(struct block_device *bdev);
 extern struct super_block *freeze_bdev(struct block_device *);
-extern void emergency_thaw_all(void);
 extern void emergency_thaw_bdev(struct super_block *sb);
 extern int thaw_bdev(struct block_device *bdev, struct super_block *sb);
 extern int fsync_bdev(struct block_device *);
@@ -2633,6 +2632,7 @@ static inline bool sb_is_blkdev_sb(struct super_block *sb)
 	return false;
 }
 #endif
+void emergency_thaw_all(void);
 extern int sync_filesystem(struct super_block *);
 extern const struct file_operations def_blk_fops;
 extern const struct file_operations def_chr_fops;
-- 
2.26.2


  reply	other threads:[~2020-06-20  7:17 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-20  7:16 move block bits out of fs.h Christoph Hellwig
2020-06-20  7:16 ` Christoph Hellwig [this message]
2020-06-20  7:21   ` [PATCH 01/10] tty/sysrq: emergency_thaw_all does not depend on CONFIG_BLOCK Greg Kroah-Hartman
2020-06-21  2:54   ` Bart Van Assche
2020-06-22  8:48   ` Johannes Thumshirn
2020-06-20  7:16 ` [PATCH 02/10] block: mark bd_finish_claiming static Christoph Hellwig
2020-06-21  2:54   ` Bart Van Assche
2020-06-22  8:47   ` Johannes Thumshirn
2020-06-20  7:16 ` [PATCH 03/10] fs: remove an unused block_device_operations forward declaration Christoph Hellwig
2020-06-21  2:55   ` Bart Van Assche
2020-06-22  9:12   ` Johannes Thumshirn
2020-06-20  7:16 ` [PATCH 04/10] fs: remove the HAVE_UNLOCKED_IOCTL and HAVE_COMPAT_IOCTL defines Christoph Hellwig
2020-06-21  2:56   ` Bart Van Assche
2020-06-22  9:13   ` Johannes Thumshirn
2020-06-20  7:16 ` [PATCH 05/10] fs: remove the mount_bdev and kill_block_super stubs Christoph Hellwig
2020-06-22  9:26   ` Johannes Thumshirn
2020-06-20  7:16 ` [PATCH 06/10] block: simplify sb_is_blkdev_sb Christoph Hellwig
2020-06-21  2:57   ` Bart Van Assche
2020-06-22  9:27   ` Johannes Thumshirn
2020-06-20  7:16 ` [PATCH 07/10] block: move block-related definitions out of fs.h Christoph Hellwig
2020-06-22  9:33   ` Johannes Thumshirn
2020-06-20  7:16 ` [PATCH 08/10] fs: move the buffer_heads_over_limit stub to buffer_head.h Christoph Hellwig
2020-06-21  3:03   ` Bart Van Assche
2020-06-22  9:36   ` Johannes Thumshirn
2020-06-20  7:16 ` [PATCH 09/10] block: reduce ifdef CONFIG_BLOCK madness in headers Christoph Hellwig
2020-06-20  7:16 ` [PATCH 10/10] block: move struct block_device to blk_types.h Christoph Hellwig
2020-06-22  9:42   ` Johannes Thumshirn
2020-06-24 15:09 ` move block bits out of fs.h Jens Axboe
2020-06-24 15:12   ` Christoph Hellwig
2020-06-24 15:14     ` Jens Axboe
2020-06-24 15:14       ` Christoph Hellwig
2020-06-24 15:16         ` Jens Axboe

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