diff options
Diffstat (limited to 'block/bdev.c')
| -rw-r--r-- | block/bdev.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/block/bdev.c b/block/bdev.c index 9a33c414f450..b4dab2fb6a74 100644 --- a/block/bdev.c +++ b/block/bdev.c @@ -1021,7 +1021,7 @@ int __invalidate_device(struct block_device *bdev, bool kill_dirty) } EXPORT_SYMBOL(__invalidate_device); -void iterate_bdevs(void (*func)(struct block_device *, void *), void *arg) +void sync_bdevs(bool wait) { struct inode *inode, *old_inode = NULL; @@ -1052,8 +1052,19 @@ void iterate_bdevs(void (*func)(struct block_device *, void *), void *arg) bdev = I_BDEV(inode); mutex_lock(&bdev->bd_disk->open_mutex); - if (bdev->bd_openers) - func(bdev, arg); + if (!bdev->bd_openers) { + ; /* skip */ + } else if (wait) { + /* + * We keep the error status of individual mapping so + * that applications can catch the writeback error using + * fsync(2). See filemap_fdatawait_keep_errors() for + * details. + */ + filemap_fdatawait_keep_errors(inode->i_mapping); + } else { + filemap_fdatawrite(inode->i_mapping); + } mutex_unlock(&bdev->bd_disk->open_mutex); spin_lock(&blockdev_superblock->s_inode_list_lock); |