/* * Ceph cache definitions. * * Copyright (C) 2013 by Adfin Solutions, Inc. All Rights Reserved. * Written by Milosz Tanski (milosz@adfin.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to: * Free Software Foundation * 51 Franklin Street, Fifth Floor * Boston, MA 02111-1301 USA * */ #ifndef _CEPH_CACHE_H #define _CEPH_CACHE_H #ifdef CONFIG_CEPH_FSCACHE extern struct fscache_netfs ceph_cache_netfs; int ceph_fscache_register(void); void ceph_fscache_unregister(void); int ceph_fscache_register_fs(struct ceph_fs_client* fsc); void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc); void ceph_fscache_register_inode_cookie(struct inode *inode); void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci); void ceph_fscache_file_set_cookie(struct inode *inode, struct file *filp); void ceph_fscache_revalidate_cookie(struct ceph_inode_info *ci); int ceph_readpage_from_fscache(struct inode *inode, struct page *page); int ceph_readpages_from_fscache(struct inode *inode, struct address_space *mapping, struct list_head *pages, unsigned *nr_pages); void ceph_readpage_to_fscache(struct inode *inode, struct page *page); void ceph_invalidate_fscache_page(struct inode* inode, struct page *page); static inline void ceph_fscache_inode_init(struct ceph_inode_info *ci) { ci->fscache = NULL; ci->i_fscache_gen = 0; } static inline void ceph_fscache_invalidate(struct inode *inode) { fscache_invalidate(ceph_inode(inode)->fscache); } static inline void ceph_fscache_uncache_page(struct inode *inode, struct page *page) { struct ceph_inode_info *ci = ceph_inode(inode); return fscache_uncache_page(ci->fscache, page); } static inline int ceph_release_fscache_page(struct page *page, gfp_t gfp) { struct inode* inode = page->mapping->host; struct ceph_inode_info *ci = ceph_inode(inode); return fscache_maybe_release_page(ci->fscache, page, gfp); } static inline void ceph_fscache_readpage_cancel(struct inode *inode, struct page *page) { struct ceph_inode_info *ci = ceph_inode(inode); if (fscache_cookie_valid(ci->fscache) && PageFsCache(page)) __fscache_uncache_page(ci->fscache, page); } static inline void ceph_fscache_readpages_cancel(struct inode *inode, struct list_head *pages) { struct ceph_inode_info *ci = ceph_inode(inode); return fscache_readpages_cancel(ci->fscache, pages); } static inline void ceph_disable_fscache_readpage(struct ceph_inode_info *ci) { ci->i_fscache_gen = ci->i_rdcache_gen - 1; } #else static inline int ceph_fscache_register(void) { return 0; } static inline void ceph_fscache_unregister(void) { } static inline int ceph_fscache_register_fs(struct ceph_fs_client* fsc) { return 0; } static inline void ceph_fscache_unregister_fs(struct ceph_fs_client* fsc) { } static inline void ceph_fscache_inode_init(struct ceph_inode_info *ci) { } static inline void ceph_fscache_register_inode_cookie(struct inode *inode) { } static inline void ceph_fscache_unregister_inode_cookie(struct ceph_inode_info* ci) { } static inline void ceph_fscache_file_set_cookie(struct inode *inode, struct file *filp) { } static inline void ceph_fscache_revalidate_cookie(struct ceph_inode_info *ci) { } static inline void ceph_fscache_uncache_page(struct inode *inode, struct page *pages) { } static inline int ceph_readpage_from_fscache(struct inode* inode, struct page *page) { return -ENOBUFS; } static inline int ceph_readpages_from_fscache(struct inode *inode, struct address_space *mapping, struct list_head *pages, unsigned *nr_pages) { return -ENOBUFS; } static inline void ceph_readpage_to_fscache(struct inode *inode, struct page *page) { } static inline void ceph_fscache_invalidate(struct inode *inode) { } static inline void ceph_invalidate_fscache_page(struct inode *inode, struct page *page) { } static inline int ceph_release_fscache_page(struct page *page, gfp_t gfp) { return 1; } static inline void ceph_fscache_readpage_cancel(struct inode *inode, struct page *page) { } static inline void ceph_fscache_readpages_cancel(struct inode *inode, struct list_head *pages) { } static inline void ceph_disable_fscache_readpage(struct ceph_inode_info *ci) { } #endif #endif icmpv6 codes properly, from Simon Horman. 5) Initial MAC address can be set incorrectly in some scenerios, from Ivan Vecera. 6) Packet header pointer arithmetic fix in ip6_tnl_parse_tlv_end_lim(), from Dan Carpenter. 7) Fix divide by zero in __tcp_select_window(), from Eric Dumazet. 8) Fix crash in iwlwifi when unregistering thermal zone, from Jens Axboe. 9) Check for DMA mapping errors in starfire driver, from Alexey Khoroshilov. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (31 commits) tcp: fix 0 divide in __tcp_select_window() ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim() net: fix ndo_features_check/ndo_fix_features comment ordering net/sched: matchall: Fix configuration race be2net: fix initial MAC setting ipv6: fix flow labels when the traffic class is non-0 net: thunderx: avoid dereferencing xcv when NULL net/sched: cls_flower: Correct matching on ICMPv6 code ipv6: Paritially checksum full MTU frames net/mlx4_core: Avoid command timeouts during VF driver device shutdown gianfar: synchronize DMA API usage by free_skb_rx_queue w/ gfar_new_page net: ethtool: add support for 2500BaseT and 5000BaseT link modes can: bcm: fix hrtimer/tasklet termination in bcm op removal net: adaptec: starfire: add checks for dma mapping errors net: phy: micrel: KSZ8795 do not set SUPPORTED_[Asym_]Pause can: Fix kernel panic at security_sock_rcv_skb net: macb: Fix 64 bit addressing support for GEM stmmac: Discard masked flags in interrupt status register net/mlx5e: Check ets capability before ets query FW command net/mlx5e: Fix update of hash function/key via ethtool ...