struct timespec64 t;
umode_t mode;
bool data_changed = false;
- bool change_size = false;
+ bool change_size = vp->set_size;
_enter("{%llx:%llu.%u} %s",
vp->fid.vid, vp->fid.vnode, vp->fid.unique,
static void afs_setattr_success(struct afs_operation *op)
{
+ struct inode *inode = &op->file[0].vnode->vfs_inode;
+
afs_vnode_commit_status(op, &op->file[0]);
+ if (op->setattr.attr->ia_valid & ATTR_SIZE) {
+ loff_t i_size = inode->i_size, size = op->setattr.attr->ia_size;
+ if (size > i_size)
+ pagecache_isize_extended(inode, i_size, size);
+ truncate_pagecache(inode, size);
+ }
}
static const struct afs_operation_ops afs_setattr_operation = {
{
struct afs_operation *op;
struct afs_vnode *vnode = AFS_FS_I(d_inode(dentry));
+ int ret;
_enter("{%llx:%llu},{n=%pd},%x",
vnode->fid.vid, vnode->fid.vnode, dentry,
return 0;
}
+ if (attr->ia_valid & ATTR_SIZE) {
+ if (!S_ISREG(vnode->vfs_inode.i_mode))
+ return -EISDIR;
+
+ ret = inode_newsize_ok(&vnode->vfs_inode, attr->ia_size);
+ if (ret)
+ return ret;
+
+ if (attr->ia_size == i_size_read(&vnode->vfs_inode))
+ attr->ia_valid &= ~ATTR_SIZE;
+ }
+
/* flush any dirty data outstanding on a regular file */
if (S_ISREG(vnode->vfs_inode.i_mode))
filemap_write_and_wait(vnode->vfs_inode.i_mapping);
afs_op_set_vnode(op, 0, vnode);
op->setattr.attr = attr;
- if (attr->ia_valid & ATTR_SIZE)
+ if (attr->ia_valid & ATTR_SIZE) {
op->file[0].dv_delta = 1;
+ op->file[0].set_size = true;
+ }
op->ctime = attr->ia_ctime;
op->file[0].update_ctime = 1;
afs_dataversion_t dv_before; /* Data version before the call */
unsigned int cb_break_before; /* cb_break + cb_s_break before the call */
u8 dv_delta; /* Expected change in data version */
- bool put_vnode; /* T if we have a ref on the vnode */
- bool need_io_lock; /* T if we need the I/O lock on this */
- bool update_ctime; /* Need to update the ctime */
+ bool put_vnode:1; /* T if we have a ref on the vnode */
+ bool need_io_lock:1; /* T if we need the I/O lock on this */
+ bool update_ctime:1; /* Need to update the ctime */
+ bool set_size:1; /* Must update i_size */
};
/*
unsigned long count, priv;
unsigned n, offset, to, f, t;
pgoff_t start, first, last;
+ loff_t i_size, end;
int loop, ret;
_enter(",%lx", primary_page->index);
first = primary_page->index;
last = first + count - 1;
+ end = (loff_t)last * PAGE_SIZE + to;
+ i_size = i_size_read(&vnode->vfs_inode);
+
_debug("write back %lx[%u..] to %lx[..%u]", first, offset, last, to);
+ if (end > i_size)
+ to = i_size & ~PAGE_MASK;
ret = afs_store_data(mapping, first, last, offset, to);
switch (ret) {