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authorAndrew Patterson <andrew.patterson@hp.com>2008-09-04 14:27:25 -0600
committerJens Axboe <jens.axboe@oracle.com>2008-10-09 08:56:12 +0200
commitc3279d1454cdfed02a557d789d8a6d08ab4cbe70 (patch)
tree2591c7c0886f9b6b63aa40e3ef3caa984370c38b /include
parent0c002c2f74e10baa9021d3ecc50585c6eafea568 (diff)
Adjust block device size after an online resize of a disk.
The revalidate_disk routine now checks if a disk has been resized by comparing the gendisk capacity to the bdev inode size. If they are different (usually because the disk has been resized underneath the kernel) the bdev inode size is adjusted to match the capacity. Signed-off-by: Andrew Patterson <andrew.patterson@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index d63461f97983..32477e8872d5 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1722,6 +1722,8 @@ extern int fs_may_remount_ro(struct super_block *);
*/
#define bio_data_dir(bio) ((bio)->bi_rw & 1)
+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 *);