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-rw-r--r--block/genhd.c2
-rw-r--r--drivers/block/floppy.c2
-rw-r--r--fs/block_dev.c12
-rw-r--r--fs/inode.c9
-rw-r--r--fs/internal.h2
-rw-r--r--include/linux/fs.h2
6 files changed, 18 insertions, 11 deletions
diff --git a/block/genhd.c b/block/genhd.c
index 6a5b772aa20..cbf1112a885 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1355,7 +1355,7 @@ int invalidate_partition(struct gendisk *disk, int partno)
struct block_device *bdev = bdget_disk(disk, partno);
if (bdev) {
fsync_bdev(bdev);
- res = __invalidate_device(bdev);
+ res = __invalidate_device(bdev, true);
bdput(bdev);
}
return res;
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index b9ba04fc2b3..77fc76f8aea 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3281,7 +3281,7 @@ static int set_geometry(unsigned int cmd, struct floppy_struct *g,
struct block_device *bdev = opened_bdev[cnt];
if (!bdev || ITYPE(drive_state[cnt].fd_device) != type)
continue;
- __invalidate_device(bdev);
+ __invalidate_device(bdev, true);
}
mutex_unlock(&open_lock);
} else {
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 333a7bb4cb9..5e23152d04a 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -927,9 +927,9 @@ EXPORT_SYMBOL_GPL(bd_unlink_disk_holder);
* when a disk has been changed -- either by a media change or online
* resize.
*/
-static void flush_disk(struct block_device *bdev)
+static void flush_disk(struct block_device *bdev, bool kill_dirty)
{
- if (__invalidate_device(bdev)) {
+ if (__invalidate_device(bdev, kill_dirty)) {
char name[BDEVNAME_SIZE] = "";
if (bdev->bd_disk)
@@ -966,7 +966,7 @@ void check_disk_size_change(struct gendisk *disk, struct block_device *bdev)
"%s: detected capacity change from %lld to %lld\n",
name, bdev_size, disk_size);
i_size_write(bdev->bd_inode, disk_size);
- flush_disk(bdev);
+ flush_disk(bdev, false);
}
}
EXPORT_SYMBOL(check_disk_size_change);
@@ -1019,7 +1019,7 @@ int check_disk_change(struct block_device *bdev)
if (!(events & DISK_EVENT_MEDIA_CHANGE))
return 0;
- flush_disk(bdev);
+ flush_disk(bdev, true);
if (bdops->revalidate_disk)
bdops->revalidate_disk(bdev->bd_disk);
return 1;
@@ -1601,7 +1601,7 @@ fail:
}
EXPORT_SYMBOL(lookup_bdev);
-int __invalidate_device(struct block_device *bdev)
+int __invalidate_device(struct block_device *bdev, bool kill_dirty)
{
struct super_block *sb = get_super(bdev);
int res = 0;
@@ -1614,7 +1614,7 @@ int __invalidate_device(struct block_device *bdev)
* hold).
*/
shrink_dcache_sb(sb);
- res = invalidate_inodes(sb);
+ res = invalidate_inodes(sb, kill_dirty);
drop_super(sb);
}
invalidate_bdev(bdev);
diff --git a/fs/inode.c b/fs/inode.c
index da85e56378f..c50d7feb87b 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -540,11 +540,14 @@ void evict_inodes(struct super_block *sb)
/**
* invalidate_inodes - attempt to free all inodes on a superblock
* @sb: superblock to operate on
+ * @kill_dirty: flag to guide handling of dirty inodes
*
* Attempts to free all inodes for a given superblock. If there were any
* busy inodes return a non-zero value, else zero.
+ * If @kill_dirty is set, discard dirty inodes too, otherwise treat
+ * them as busy.
*/
-int invalidate_inodes(struct super_block *sb)
+int invalidate_inodes(struct super_block *sb, bool kill_dirty)
{
int busy = 0;
struct inode *inode, *next;
@@ -556,6 +559,10 @@ int invalidate_inodes(struct super_block *sb)
list_for_each_entry_safe(inode, next, &sb->s_inodes, i_sb_list) {
if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE))
continue;
+ if (inode->i_state & I_DIRTY && !kill_dirty) {
+ busy = 1;
+ continue;
+ }
if (atomic_read(&inode->i_count)) {
busy = 1;
continue;
diff --git a/fs/internal.h b/fs/internal.h
index 0663568b124..9b976b57d7f 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -112,4 +112,4 @@ extern void release_open_intent(struct nameidata *);
*/
extern int get_nr_dirty_inodes(void);
extern void evict_inodes(struct super_block *);
-extern int invalidate_inodes(struct super_block *);
+extern int invalidate_inodes(struct super_block *, bool);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 32b38cd829d..683f4c566c8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2139,7 +2139,7 @@ extern void check_disk_size_change(struct gendisk *disk,
struct block_device *bdev);
extern int revalidate_disk(struct gendisk *);
extern int check_disk_change(struct block_device *);
-extern int __invalidate_device(struct block_device *);
+extern int __invalidate_device(struct block_device *, bool);
extern int invalidate_partition(struct gendisk *, int);
#endif
unsigned long invalidate_mapping_pages(struct address_space *mapping,