diff options
Diffstat (limited to 'kernel/mm/shmem.c')
| -rw-r--r-- | kernel/mm/shmem.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/mm/shmem.c b/kernel/mm/shmem.c index ea5a70cfc..1b11ccc0a 100644 --- a/kernel/mm/shmem.c +++ b/kernel/mm/shmem.c @@ -2153,9 +2153,11 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset, NULL); if (error) { /* Remove the !PageUptodate pages we added */ - shmem_undo_range(inode, - (loff_t)start << PAGE_CACHE_SHIFT, - (loff_t)index << PAGE_CACHE_SHIFT, true); + if (index > start) { + shmem_undo_range(inode, + (loff_t)start << PAGE_CACHE_SHIFT, + ((loff_t)index << PAGE_CACHE_SHIFT) - 1, true); + } goto undone; } |