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fscache: Pass object size in rather than calling back for it

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Pass the object size in to fscache_acquire_cookie() and
fscache_write_page() rather than the netfs providing a callback by which it
can be received.  This makes it easier to update the size of the object
when a new page is written that extends the object.

The current object size is also passed by fscache to the check_aux
function, obviating the need to store it in the aux data.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Anna Schumaker <anna.schumaker@netapp.com>
Tested-by: Steve Dickson <steved@redhat.com>
This commit is contained in:
David Howells
2018-04-04 13:41:28 +01:00
parent 402cb8dda9
commit ee1235a9a0
21 changed files with 127 additions and 166 deletions
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6
fs/cachefiles/xattr.c
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@@ -182,7 +182,8 @@ int cachefiles_check_auxdata(struct cachefiles_object *object)
goto error;
xlen--;
validity = fscache_check_aux(&object->fscache, &auxbuf->data, xlen);
validity = fscache_check_aux(&object->fscache, &auxbuf->data, xlen,
i_size_read(d_backing_inode(dentry)));
if (validity != FSCACHE_CHECKAUX_OKAY)
goto error;
@@ -251,7 +252,8 @@ int cachefiles_check_object_xattr(struct cachefiles_object *object,
object->fscache.cookie->def->name, dlen);
result = fscache_check_aux(&object->fscache,
&auxbuf->data, dlen);
&auxbuf->data, dlen,
i_size_read(d_backing_inode(dentry)));
switch (result) {
/* entry okay as is */