From ee1235a9a06813429c201bf186397a6feeea07bf Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 4 Apr 2018 13:41:28 +0100 Subject: fscache: Pass object size in rather than calling back for it 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 Acked-by: Anna Schumaker Tested-by: Steve Dickson --- fs/cifs/cache.c | 15 ++++----------- fs/cifs/fscache.c | 14 ++++++++------ 2 files changed, 12 insertions(+), 17 deletions(-) (limited to 'fs/cifs') diff --git a/fs/cifs/cache.c b/fs/cifs/cache.c index b4fa270ef532..edf5f40898bf 100644 --- a/fs/cifs/cache.c +++ b/fs/cifs/cache.c @@ -87,7 +87,8 @@ char *extract_sharename(const char *treename) static enum fscache_checkaux cifs_fscache_super_check_aux(void *cookie_netfs_data, const void *data, - uint16_t datalen) + uint16_t datalen, + loff_t object_size) { struct cifs_fscache_super_auxdata auxdata; const struct cifs_tcon *tcon = cookie_netfs_data; @@ -113,18 +114,11 @@ const struct fscache_cookie_def cifs_fscache_super_index_def = { .check_aux = cifs_fscache_super_check_aux, }; -static void -cifs_fscache_inode_get_attr(const void *cookie_netfs_data, uint64_t *size) -{ - const struct cifsInodeInfo *cifsi = cookie_netfs_data; - - *size = cifsi->vfs_inode.i_size; -} - static enum fscache_checkaux cifs_fscache_inode_check_aux(void *cookie_netfs_data, const void *data, - uint16_t datalen) + uint16_t datalen, + loff_t object_size) { struct cifs_fscache_inode_auxdata auxdata; struct cifsInodeInfo *cifsi = cookie_netfs_data; @@ -146,6 +140,5 @@ fscache_checkaux cifs_fscache_inode_check_aux(void *cookie_netfs_data, const struct fscache_cookie_def cifs_fscache_inode_object_def = { .name = "CIFS.uniqueid", .type = FSCACHE_COOKIE_TYPE_DATAFILE, - .get_attr = cifs_fscache_inode_get_attr, .check_aux = cifs_fscache_inode_check_aux, }; diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c index b89b59b01759..25d3f66b2d50 100644 --- a/fs/cifs/fscache.c +++ b/fs/cifs/fscache.c @@ -79,7 +79,7 @@ void cifs_fscache_get_client_cookie(struct TCP_Server_Info *server) &cifs_fscache_server_index_def, &key, key_len, NULL, 0, - server, true); + server, 0, true); cifs_dbg(FYI, "%s: (0x%p/0x%p)\n", __func__, server, server->fscache); } @@ -109,7 +109,7 @@ void cifs_fscache_get_super_cookie(struct cifs_tcon *tcon) &cifs_fscache_super_index_def, sharename, strlen(sharename), &tcon->resource_id, sizeof(tcon->resource_id), - tcon, true); + tcon, 0, true); kfree(sharename); cifs_dbg(FYI, "%s: (0x%p/0x%p)\n", __func__, server->fscache, tcon->fscache); @@ -137,7 +137,7 @@ static void cifs_fscache_acquire_inode_cookie(struct cifsInodeInfo *cifsi, &cifs_fscache_inode_object_def, &cifsi->uniqueid, sizeof(cifsi->uniqueid), &auxdata, sizeof(auxdata), - cifsi, true); + cifsi, cifsi->vfs_inode.i_size, true); } static void cifs_fscache_enable_inode_cookie(struct inode *inode) @@ -301,13 +301,15 @@ int __cifs_readpages_from_fscache(struct inode *inode, void __cifs_readpage_to_fscache(struct inode *inode, struct page *page) { + struct cifsInodeInfo *cifsi = CIFS_I(inode); int ret; cifs_dbg(FYI, "%s: (fsc: %p, p: %p, i: %p)\n", - __func__, CIFS_I(inode)->fscache, page, inode); - ret = fscache_write_page(CIFS_I(inode)->fscache, page, GFP_KERNEL); + __func__, cifsi->fscache, page, inode); + ret = fscache_write_page(cifsi->fscache, page, + cifsi->vfs_inode.i_size, GFP_KERNEL); if (ret != 0) - fscache_uncache_page(CIFS_I(inode)->fscache, page); + fscache_uncache_page(cifsi->fscache, page); } void __cifs_fscache_readpages_cancel(struct inode *inode, struct list_head *pages) -- cgit v1.2.3