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tty/sysrq: emergency_thaw_all does not depend on CONFIG_BLOCK

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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>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2020-06-20 09:16:35 +02:00 committed by Jens Axboe
parent 7a804c34c2
commit b818f09e46
2 changed files with 1 additions and 3 deletions
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2
drivers/tty/sysrq.c
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@ -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)
{

2
include/linux/fs.h
View File

@ -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;