On Thu, Sep 17, 2020 at 7:24 PM Christoph Hellwig <[email protected]> wrote: > > Just check the dev_t to help simplifying the code. > > Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]> > --- > fs/block_dev.c | 2 +- > include/linux/suspend.h | 4 ++-- > kernel/power/user.c | 12 ++++++------ > 3 files changed, 9 insertions(+), 9 deletions(-) > > diff --git a/fs/block_dev.c b/fs/block_dev.c > index 1a9325f4315769..2898d69be6b3e4 100644 > --- a/fs/block_dev.c > +++ b/fs/block_dev.c > @@ -1885,7 +1885,7 @@ ssize_t blkdev_write_iter(struct kiocb *iocb, struct > iov_iter *from) > if (bdev_read_only(I_BDEV(bd_inode))) > return -EPERM; > > - if (IS_SWAPFILE(bd_inode) && !is_hibernate_resume_dev(bd_inode)) > + if (IS_SWAPFILE(bd_inode) && > !is_hibernate_resume_dev(bd_inode->i_rdev)) > return -ETXTBSY; > > if (!iov_iter_count(from)) > diff --git a/include/linux/suspend.h b/include/linux/suspend.h > index cb9afad82a90c8..8af13ba60c7e45 100644 > --- a/include/linux/suspend.h > +++ b/include/linux/suspend.h > @@ -473,9 +473,9 @@ static inline int hibernate_quiet_exec(int (*func)(void > *data), void *data) { > #endif /* CONFIG_HIBERNATION */ > > #ifdef CONFIG_HIBERNATION_SNAPSHOT_DEV > -int is_hibernate_resume_dev(const struct inode *); > +int is_hibernate_resume_dev(dev_t dev); > #else > -static inline int is_hibernate_resume_dev(const struct inode *i) { return 0; > } > +static inline int is_hibernate_resume_dev(dev_t dev) { return 0; } > #endif > > /* Hibernation and suspend events */ > diff --git a/kernel/power/user.c b/kernel/power/user.c > index d5eedc2baa2a10..b5815685b944fe 100644 > --- a/kernel/power/user.c > +++ b/kernel/power/user.c > @@ -35,12 +35,12 @@ static struct snapshot_data { > bool ready; > bool platform_support; > bool free_bitmaps; > - struct inode *bd_inode; > + dev_t dev; > } snapshot_state; > > -int is_hibernate_resume_dev(const struct inode *bd_inode) > +int is_hibernate_resume_dev(dev_t dev) > { > - return hibernation_available() && snapshot_state.bd_inode == bd_inode; > + return hibernation_available() && snapshot_state.dev == dev; > } > > static int snapshot_open(struct inode *inode, struct file *filp) > @@ -101,7 +101,7 @@ static int snapshot_open(struct inode *inode, struct file > *filp) > data->frozen = false; > data->ready = false; > data->platform_support = false; > - data->bd_inode = NULL; > + data->dev = 0; > > Unlock: > unlock_system_sleep(); > @@ -117,7 +117,7 @@ static int snapshot_release(struct inode *inode, struct > file *filp) > > swsusp_free(); > data = filp->private_data; > - data->bd_inode = NULL; > + data->dev = 0; > free_all_swap_pages(data->swap); > if (data->frozen) { > pm_restore_gfp_mask(); > @@ -245,7 +245,7 @@ static int snapshot_set_swap_area(struct snapshot_data > *data, > if (data->swap < 0) > return -ENODEV; > > - data->bd_inode = bdev->bd_inode; > + data->dev = bdev->bd_dev; > bdput(bdev); > return 0; > } > -- > 2.28.0 >
