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Update data_version when fallocate changes size

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Changing the file size can changes the file contents -- reads will
change when they stop returning data.  fallocate can change the file
size and if it does it should increment the data_version, just like
setattr does.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2021-07-14 16:51:19 -07:00
parent a9baeab22e
commit 192f077c16
1 changed files with 3 additions and 1 deletions
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4
kmod/src/data.c
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@@ -1031,8 +1031,10 @@ long scoutfs_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
end = (iblock + ret) << SCOUTFS_BLOCK_SM_SHIFT;
if (end > offset + len)
end = offset + len;
if (end > i_size_read(inode))
if (end > i_size_read(inode)) {
i_size_write(inode, end);
scoutfs_inode_inc_data_version(inode);
}
}
if (ret >= 0)
scoutfs_update_inode_item(inode, lock, &ind_locks);