lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Date:   Fri, 15 Oct 2021 14:20:54 +0800
From:   kernel test robot <lkp@...el.com>
To:     David Howells <dhowells@...hat.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [dhowells-fs:fscache-rewrite-indexing 71/75]
 include/linux/fscache.h:386: undefined reference to
 `__fscache_resize_cookie'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-rewrite-indexing
head:   96d4e1af98c26988d3c1b3cf688974c24de90fa9
commit: 8a43aeca4686a1f00f184392066f00da252797d0 [71/75] 9p: Use fscache indexing rewrite and reenable caching
config: i386-debian-10.3 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/commit/?id=8a43aeca4686a1f00f184392066f00da252797d0
        git remote add dhowells-fs https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
        git fetch --no-tags dhowells-fs fscache-rewrite-indexing
        git checkout 8a43aeca4686a1f00f184392066f00da252797d0
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   ld: fs/9p/vfs_inode.o: in function `fscache_resize_cookie':
>> include/linux/fscache.h:386: undefined reference to `__fscache_resize_cookie'
   ld: fs/9p/vfs_inode.o: in function `fscache_relinquish_cookie':
>> include/linux/fscache.h:305: undefined reference to `__fscache_relinquish_cookie'
   ld: fs/9p/vfs_inode.o: in function `fscache_use_cookie':
>> include/linux/fscache.h:269: undefined reference to `__fscache_use_cookie'
   ld: fs/9p/vfs_inode_dotl.o: in function `fscache_use_cookie':
>> include/linux/fscache.h:269: undefined reference to `__fscache_use_cookie'
   ld: fs/9p/vfs_addr.o: in function `fscache_begin_read_operation':
>> include/linux/fscache.h:483: undefined reference to `__fscache_begin_read_operation'
   ld: fs/9p/vfs_file.o: in function `fscache_use_cookie':
>> include/linux/fscache.h:269: undefined reference to `__fscache_use_cookie'
   ld: fs/9p/vfs_dir.o: in function `fscache_unuse_cookie':
>> include/linux/fscache.h:286: undefined reference to `__fscache_unuse_cookie'
>> ld: include/linux/fscache.h:286: undefined reference to `__fscache_unuse_cookie'
   ld: fs/9p/v9fs.o: in function `fscache_relinquish_volume':
>> include/linux/fscache.h:221: undefined reference to `__fscache_relinquish_volume'
   ld: fs/9p/cache.o: in function `fscache_acquire_volume':
>> include/linux/fscache.h:202: undefined reference to `__fscache_acquire_volume'
   ld: fs/9p/cache.o: in function `fscache_acquire_cookie':
>> include/linux/fscache.h:250: undefined reference to `__fscache_acquire_cookie'


vim +386 include/linux/fscache.h

7f9fc1ee74adf2 David Howells         2020-09-22  183  
2d6fff63703739 David Howells         2009-04-03  184  /**
056daf803e87af David Howells         2020-02-06  185   * fscache_acquire_volume - Register a volume as desiring caching services
056daf803e87af David Howells         2020-02-06  186   * @volume_key: An identification string for the volume
056daf803e87af David Howells         2020-02-06  187   * @cache_name: The name of the cache to use (or NULL for the default)
056daf803e87af David Howells         2020-02-06  188   * @coherency_data: Piece of arbitrary coherency data to check
056daf803e87af David Howells         2020-02-06  189   *
056daf803e87af David Howells         2020-02-06  190   * Register a volume as desiring caching services if they're available.  The
056daf803e87af David Howells         2020-02-06  191   * caller must provide an identifier for the volume and may also indicate which
056daf803e87af David Howells         2020-02-06  192   * cache it should be in.  If a preexisting volume entry is found in the cache,
056daf803e87af David Howells         2020-02-06  193   * the coherency data must match otherwise the entry will be invalidated.
2d6fff63703739 David Howells         2009-04-03  194   */
2d6fff63703739 David Howells         2009-04-03  195  static inline
056daf803e87af David Howells         2020-02-06  196  struct fscache_volume *fscache_acquire_volume(const char *volume_key,
056daf803e87af David Howells         2020-02-06  197  					      const char *cache_name,
056daf803e87af David Howells         2020-02-06  198  					      u64 coherency_data)
2d6fff63703739 David Howells         2009-04-03  199  {
056daf803e87af David Howells         2020-02-06  200  	if (!fscache_available())
2d6fff63703739 David Howells         2009-04-03  201  		return NULL;
056daf803e87af David Howells         2020-02-06 @202  	return __fscache_acquire_volume(volume_key, cache_name, coherency_data);
2d6fff63703739 David Howells         2009-04-03  203  }
2d6fff63703739 David Howells         2009-04-03  204  
2d6fff63703739 David Howells         2009-04-03  205  /**
056daf803e87af David Howells         2020-02-06  206   * fscache_relinquish_volume - Cease caching a volume
056daf803e87af David Howells         2020-02-06  207   * @volume: The volume cookie
056daf803e87af David Howells         2020-02-06  208   * @coherency_data: Piece of arbitrary coherency data to set
056daf803e87af David Howells         2020-02-06  209   * @invalidate: True if the volume should be invalidated
056daf803e87af David Howells         2020-02-06  210   *
056daf803e87af David Howells         2020-02-06  211   * Indicate that a filesystem no longer desires caching services for a volume.
056daf803e87af David Howells         2020-02-06  212   * The caller must have relinquished all file cookies prior to calling this.
056daf803e87af David Howells         2020-02-06  213   * The coherency data stored is updated.
2d6fff63703739 David Howells         2009-04-03  214   */
2d6fff63703739 David Howells         2009-04-03  215  static inline
056daf803e87af David Howells         2020-02-06  216  void fscache_relinquish_volume(struct fscache_volume *volume,
056daf803e87af David Howells         2020-02-06  217  			       u64 coherency_data,
056daf803e87af David Howells         2020-02-06  218  			       bool invalidate)
2d6fff63703739 David Howells         2009-04-03  219  {
056daf803e87af David Howells         2020-02-06  220  	if (fscache_volume_valid(volume))
056daf803e87af David Howells         2020-02-06 @221  		__fscache_relinquish_volume(volume, coherency_data, invalidate);
2d6fff63703739 David Howells         2009-04-03  222  }
2d6fff63703739 David Howells         2009-04-03  223  
2d6fff63703739 David Howells         2009-04-03  224  /**
2d6fff63703739 David Howells         2009-04-03  225   * fscache_acquire_cookie - Acquire a cookie to represent a cache object
056daf803e87af David Howells         2020-02-06  226   * @volume: The volume in which to locate/create this cookie
d5c268fc7cd21a David Howells         2020-02-06  227   * @advice: Advice flags (FSCACHE_COOKIE_ADV_*)
402cb8dda949d9 David Howells         2018-04-04  228   * @index_key: The index key for this cookie
402cb8dda949d9 David Howells         2018-04-04  229   * @index_key_len: Size of the index key
402cb8dda949d9 David Howells         2018-04-04  230   * @aux_data: The auxiliary data for the cookie (may be NULL)
402cb8dda949d9 David Howells         2018-04-04  231   * @aux_data_len: Size of the auxiliary data buffer
ee1235a9a06813 David Howells         2018-04-04  232   * @object_size: The initial size of object
2d6fff63703739 David Howells         2009-04-03  233   *
056daf803e87af David Howells         2020-02-06  234   * Acquire a cookie to represent a data file within the given cache volume.
2d6fff63703739 David Howells         2009-04-03  235   *
efc930fa1d8448 Mauro Carvalho Chehab 2020-04-27  236   * See Documentation/filesystems/caching/netfs-api.rst for a complete
2d6fff63703739 David Howells         2009-04-03  237   * description.
2d6fff63703739 David Howells         2009-04-03  238   */
2d6fff63703739 David Howells         2009-04-03  239  static inline
056daf803e87af David Howells         2020-02-06  240  struct fscache_cookie *fscache_acquire_cookie(struct fscache_volume *volume,
d5c268fc7cd21a David Howells         2020-02-06  241  					      u8 advice,
402cb8dda949d9 David Howells         2018-04-04  242  					      const void *index_key,
402cb8dda949d9 David Howells         2018-04-04  243  					      size_t index_key_len,
402cb8dda949d9 David Howells         2018-04-04  244  					      const void *aux_data,
402cb8dda949d9 David Howells         2018-04-04  245  					      size_t aux_data_len,
056daf803e87af David Howells         2020-02-06  246  					      loff_t object_size)
2d6fff63703739 David Howells         2009-04-03  247  {
056daf803e87af David Howells         2020-02-06  248  	if (!fscache_volume_valid(volume))
056daf803e87af David Howells         2020-02-06  249  		return NULL;
056daf803e87af David Howells         2020-02-06 @250  	return __fscache_acquire_cookie(volume, advice,
402cb8dda949d9 David Howells         2018-04-04  251  					index_key, index_key_len,
402cb8dda949d9 David Howells         2018-04-04  252  					aux_data, aux_data_len,
056daf803e87af David Howells         2020-02-06  253  					object_size);
056daf803e87af David Howells         2020-02-06  254  }
056daf803e87af David Howells         2020-02-06  255  
056daf803e87af David Howells         2020-02-06  256  /**
056daf803e87af David Howells         2020-02-06  257   * fscache_use_cookie - Request usage of cookie attached to an object
056daf803e87af David Howells         2020-02-06  258   * @object: Object description
056daf803e87af David Howells         2020-02-06  259   * @will_modify: If cache is expected to be modified locally
056daf803e87af David Howells         2020-02-06  260   *
056daf803e87af David Howells         2020-02-06  261   * Request usage of the cookie attached to an object.  The caller should tell
056daf803e87af David Howells         2020-02-06  262   * the cache if the object's contents are about to be modified locally and then
056daf803e87af David Howells         2020-02-06  263   * the cache can apply the policy that has been set to handle this case.
056daf803e87af David Howells         2020-02-06  264   */
056daf803e87af David Howells         2020-02-06  265  static inline void fscache_use_cookie(struct fscache_cookie *cookie,
056daf803e87af David Howells         2020-02-06  266  				      bool will_modify)
056daf803e87af David Howells         2020-02-06  267  {
056daf803e87af David Howells         2020-02-06  268  	if (fscache_cookie_valid(cookie))
056daf803e87af David Howells         2020-02-06 @269  		__fscache_use_cookie(cookie, will_modify);
056daf803e87af David Howells         2020-02-06  270  }
056daf803e87af David Howells         2020-02-06  271  
056daf803e87af David Howells         2020-02-06  272  /**
056daf803e87af David Howells         2020-02-06  273   * fscache_unuse_cookie - Cease usage of cookie attached to an object
056daf803e87af David Howells         2020-02-06  274   * @object: Object description
056daf803e87af David Howells         2020-02-06  275   * @aux_data: Updated auxiliary data (or NULL)
056daf803e87af David Howells         2020-02-06  276   * @object_size: Revised size of the object (or NULL)
056daf803e87af David Howells         2020-02-06  277   *
056daf803e87af David Howells         2020-02-06  278   * Cease usage of the cookie attached to an object.  When the users count
056daf803e87af David Howells         2020-02-06  279   * reaches zero then the cookie relinquishment will be permitted to proceed.
056daf803e87af David Howells         2020-02-06  280   */
056daf803e87af David Howells         2020-02-06  281  static inline void fscache_unuse_cookie(struct fscache_cookie *cookie,
056daf803e87af David Howells         2020-02-06  282  					const void *aux_data,
056daf803e87af David Howells         2020-02-06  283  					const loff_t *object_size)
056daf803e87af David Howells         2020-02-06  284  {
056daf803e87af David Howells         2020-02-06  285  	if (fscache_cookie_valid(cookie))
056daf803e87af David Howells         2020-02-06 @286  		__fscache_unuse_cookie(cookie, aux_data, object_size);
2d6fff63703739 David Howells         2009-04-03  287  }
2d6fff63703739 David Howells         2009-04-03  288  
2d6fff63703739 David Howells         2009-04-03  289  /**
2d6fff63703739 David Howells         2009-04-03  290   * fscache_relinquish_cookie - Return the cookie to the cache, maybe discarding
2d6fff63703739 David Howells         2009-04-03  291   * it
2d6fff63703739 David Howells         2009-04-03  292   * @cookie: The cookie being returned
2d6fff63703739 David Howells         2009-04-03  293   * @retire: True if the cache object the cookie represents is to be discarded
2d6fff63703739 David Howells         2009-04-03  294   *
2d6fff63703739 David Howells         2009-04-03  295   * This function returns a cookie to the cache, forcibly discarding the
056daf803e87af David Howells         2020-02-06  296   * associated cache object if retire is set to true.
2d6fff63703739 David Howells         2009-04-03  297   *
efc930fa1d8448 Mauro Carvalho Chehab 2020-04-27  298   * See Documentation/filesystems/caching/netfs-api.rst for a complete
2d6fff63703739 David Howells         2009-04-03  299   * description.
2d6fff63703739 David Howells         2009-04-03  300   */
2d6fff63703739 David Howells         2009-04-03  301  static inline
056daf803e87af David Howells         2020-02-06  302  void fscache_relinquish_cookie(struct fscache_cookie *cookie, bool retire)
2d6fff63703739 David Howells         2009-04-03  303  {
ccc4fc3d11e914 David Howells         2009-04-03  304  	if (fscache_cookie_valid(cookie))
056daf803e87af David Howells         2020-02-06 @305  		__fscache_relinquish_cookie(cookie, retire);
2d6fff63703739 David Howells         2009-04-03  306  }
2d6fff63703739 David Howells         2009-04-03  307  
423c447e7489a3 David Howells         2020-11-25  308  /*
423c447e7489a3 David Howells         2020-11-25  309   * Find the auxiliary data on a cookie.
423c447e7489a3 David Howells         2020-11-25  310   */
423c447e7489a3 David Howells         2020-11-25  311  static inline void *fscache_get_aux(struct fscache_cookie *cookie)
423c447e7489a3 David Howells         2020-11-25  312  {
423c447e7489a3 David Howells         2020-11-25  313  	if (cookie->aux_len <= sizeof(cookie->inline_aux))
423c447e7489a3 David Howells         2020-11-25  314  		return cookie->inline_aux;
423c447e7489a3 David Howells         2020-11-25  315  	else
423c447e7489a3 David Howells         2020-11-25  316  		return cookie->aux;
423c447e7489a3 David Howells         2020-11-25  317  }
423c447e7489a3 David Howells         2020-11-25  318  
423c447e7489a3 David Howells         2020-11-25  319  /*
423c447e7489a3 David Howells         2020-11-25  320   * Update the auxiliary data on a cookie.
423c447e7489a3 David Howells         2020-11-25  321   */
423c447e7489a3 David Howells         2020-11-25  322  static inline
423c447e7489a3 David Howells         2020-11-25  323  void fscache_update_aux(struct fscache_cookie *cookie,
423c447e7489a3 David Howells         2020-11-25  324  			const void *aux_data, const loff_t *object_size)
423c447e7489a3 David Howells         2020-11-25  325  {
423c447e7489a3 David Howells         2020-11-25  326  	void *p = fscache_get_aux(cookie);
423c447e7489a3 David Howells         2020-11-25  327  
423c447e7489a3 David Howells         2020-11-25  328  	if (aux_data && p)
423c447e7489a3 David Howells         2020-11-25  329  		memcpy(p, aux_data, cookie->aux_len);
423c447e7489a3 David Howells         2020-11-25  330  	if (object_size)
423c447e7489a3 David Howells         2020-11-25  331  		cookie->object_size = *object_size;
423c447e7489a3 David Howells         2020-11-25  332  }
423c447e7489a3 David Howells         2020-11-25  333  
423c447e7489a3 David Howells         2020-11-25  334  #ifdef CONFIG_FSCACHE_STATS
423c447e7489a3 David Howells         2020-11-25  335  extern atomic_t fscache_n_updates;
423c447e7489a3 David Howells         2020-11-25  336  #endif
423c447e7489a3 David Howells         2020-11-25  337  
423c447e7489a3 David Howells         2020-11-25  338  static inline
423c447e7489a3 David Howells         2020-11-25  339  void __fscache_update_cookie(struct fscache_cookie *cookie, const void *aux_data,
423c447e7489a3 David Howells         2020-11-25  340  			     const loff_t *object_size)
423c447e7489a3 David Howells         2020-11-25  341  {
423c447e7489a3 David Howells         2020-11-25  342  #ifdef CONFIG_FSCACHE_STATS
423c447e7489a3 David Howells         2020-11-25  343  	atomic_inc(&fscache_n_updates);
423c447e7489a3 David Howells         2020-11-25  344  #endif
423c447e7489a3 David Howells         2020-11-25  345  	fscache_update_aux(cookie, aux_data, object_size);
423c447e7489a3 David Howells         2020-11-25  346  	smp_wmb();
423c447e7489a3 David Howells         2020-11-25  347  	set_bit(FSCACHE_COOKIE_NEEDS_UPDATE, &cookie->flags);
423c447e7489a3 David Howells         2020-11-25  348  }
423c447e7489a3 David Howells         2020-11-25  349  
2d6fff63703739 David Howells         2009-04-03  350  /**
2d6fff63703739 David Howells         2009-04-03  351   * fscache_update_cookie - Request that a cache object be updated
2d6fff63703739 David Howells         2009-04-03  352   * @cookie: The cookie representing the cache object
402cb8dda949d9 David Howells         2018-04-04  353   * @aux_data: The updated auxiliary data for the cookie (may be NULL)
056daf803e87af David Howells         2020-02-06  354   * @object_size: The current size of the object (may be NULL)
2d6fff63703739 David Howells         2009-04-03  355   *
2d6fff63703739 David Howells         2009-04-03  356   * Request an update of the index data for the cache object associated with the
402cb8dda949d9 David Howells         2018-04-04  357   * cookie.  The auxiliary data on the cookie will be updated first if @aux_data
056daf803e87af David Howells         2020-02-06  358   * is set and the object size will be updated and the object possibly trimmed
056daf803e87af David Howells         2020-02-06  359   * if @object_size is set.
2d6fff63703739 David Howells         2009-04-03  360   *
efc930fa1d8448 Mauro Carvalho Chehab 2020-04-27  361   * See Documentation/filesystems/caching/netfs-api.rst for a complete
2d6fff63703739 David Howells         2009-04-03  362   * description.
2d6fff63703739 David Howells         2009-04-03  363   */
2d6fff63703739 David Howells         2009-04-03  364  static inline
056daf803e87af David Howells         2020-02-06  365  void fscache_update_cookie(struct fscache_cookie *cookie, const void *aux_data,
056daf803e87af David Howells         2020-02-06  366  			   const loff_t *object_size)
2d6fff63703739 David Howells         2009-04-03  367  {
b4a0c0e0a13cea Jeff Layton           2020-07-30  368  	if (fscache_cookie_enabled(cookie))
056daf803e87af David Howells         2020-02-06  369  		__fscache_update_cookie(cookie, aux_data, object_size);
2d6fff63703739 David Howells         2009-04-03  370  }
2d6fff63703739 David Howells         2009-04-03  371  
9d8038c4821d31 David Howells         2020-02-06  372  /**
9d8038c4821d31 David Howells         2020-02-06  373   * fscache_resize_cookie - Request that a cache object be resized
9d8038c4821d31 David Howells         2020-02-06  374   * @cookie: The cookie representing the cache object
9d8038c4821d31 David Howells         2020-02-06  375   * @new_size: The new size of the object (may be NULL)
9d8038c4821d31 David Howells         2020-02-06  376   *
9d8038c4821d31 David Howells         2020-02-06  377   * Request that the size of an object be changed.
9d8038c4821d31 David Howells         2020-02-06  378   *
9d8038c4821d31 David Howells         2020-02-06  379   * See Documentation/filesystems/caching/netfs-api.txt for a complete
9d8038c4821d31 David Howells         2020-02-06  380   * description.
9d8038c4821d31 David Howells         2020-02-06  381   */
9d8038c4821d31 David Howells         2020-02-06  382  static inline
9d8038c4821d31 David Howells         2020-02-06  383  void fscache_resize_cookie(struct fscache_cookie *cookie, loff_t new_size)
9d8038c4821d31 David Howells         2020-02-06  384  {
9d8038c4821d31 David Howells         2020-02-06  385  	if (fscache_cookie_enabled(cookie))
9d8038c4821d31 David Howells         2020-02-06 @386  		__fscache_resize_cookie(cookie, new_size);
9d8038c4821d31 David Howells         2020-02-06  387  }
9d8038c4821d31 David Howells         2020-02-06  388  
2d6fff63703739 David Howells         2009-04-03  389  /**
2d6fff63703739 David Howells         2009-04-03  390   * fscache_pin_cookie - Pin a data-storage cache object in its cache
2d6fff63703739 David Howells         2009-04-03  391   * @cookie: The cookie representing the cache object
2d6fff63703739 David Howells         2009-04-03  392   *
2d6fff63703739 David Howells         2009-04-03  393   * Permit data-storage cache objects to be pinned in the cache.
2d6fff63703739 David Howells         2009-04-03  394   *
efc930fa1d8448 Mauro Carvalho Chehab 2020-04-27  395   * See Documentation/filesystems/caching/netfs-api.rst for a complete
2d6fff63703739 David Howells         2009-04-03  396   * description.
2d6fff63703739 David Howells         2009-04-03  397   */
2d6fff63703739 David Howells         2009-04-03  398  static inline
2d6fff63703739 David Howells         2009-04-03  399  int fscache_pin_cookie(struct fscache_cookie *cookie)
2d6fff63703739 David Howells         2009-04-03  400  {
2d6fff63703739 David Howells         2009-04-03  401  	return -ENOBUFS;
2d6fff63703739 David Howells         2009-04-03  402  }
2d6fff63703739 David Howells         2009-04-03  403  
2d6fff63703739 David Howells         2009-04-03  404  /**
2d6fff63703739 David Howells         2009-04-03  405   * fscache_pin_cookie - Unpin a data-storage cache object in its cache
2d6fff63703739 David Howells         2009-04-03  406   * @cookie: The cookie representing the cache object
2d6fff63703739 David Howells         2009-04-03  407   *
2d6fff63703739 David Howells         2009-04-03  408   * Permit data-storage cache objects to be unpinned from the cache.
2d6fff63703739 David Howells         2009-04-03  409   *
efc930fa1d8448 Mauro Carvalho Chehab 2020-04-27  410   * See Documentation/filesystems/caching/netfs-api.rst for a complete
2d6fff63703739 David Howells         2009-04-03  411   * description.
2d6fff63703739 David Howells         2009-04-03  412   */
2d6fff63703739 David Howells         2009-04-03  413  static inline
2d6fff63703739 David Howells         2009-04-03  414  void fscache_unpin_cookie(struct fscache_cookie *cookie)
2d6fff63703739 David Howells         2009-04-03  415  {
2d6fff63703739 David Howells         2009-04-03  416  }
2d6fff63703739 David Howells         2009-04-03  417  
ef778e7ae67cd4 David Howells         2012-12-20  418  /**
ef778e7ae67cd4 David Howells         2012-12-20  419   * fscache_invalidate - Notify cache that an object needs invalidation
ef778e7ae67cd4 David Howells         2012-12-20  420   * @cookie: The cookie representing the cache object
d8d6f8e68e17cd David Howells         2020-02-06  421   * @aux_data: The updated auxiliary data for the cookie (may be NULL)
6b97c8850f9876 David Howells         2021-10-04  422   * @size: The revised size of the object.
d8d6f8e68e17cd David Howells         2020-02-06  423   * @flags: Invalidation flags (FSCACHE_INVAL_*)
ef778e7ae67cd4 David Howells         2012-12-20  424   *
ef778e7ae67cd4 David Howells         2012-12-20  425   * Notify the cache that an object is needs to be invalidated and that it
ef778e7ae67cd4 David Howells         2012-12-20  426   * should abort any retrievals or stores it is doing on the cache.  The object
ef778e7ae67cd4 David Howells         2012-12-20  427   * is then marked non-caching until such time as the invalidation is complete.
ef778e7ae67cd4 David Howells         2012-12-20  428   *
d8d6f8e68e17cd David Howells         2020-02-06  429   * FSCACHE_INVAL_LIGHT indicates that if the object has been invalidated and
d8d6f8e68e17cd David Howells         2020-02-06  430   * replaced by a temporary object, the temporary object need not be replaced
d8d6f8e68e17cd David Howells         2020-02-06  431   * again.  This is primarily intended for use with FSCACHE_ADV_SINGLE_CHUNK.
d8d6f8e68e17cd David Howells         2020-02-06  432   *
d8d6f8e68e17cd David Howells         2020-02-06  433   * FSCACHE_INVAL_DIO_WRITE indicates that this is due to a direct I/O write and
d8d6f8e68e17cd David Howells         2020-02-06  434   * may cause caching to be suspended on this cookie.
ef778e7ae67cd4 David Howells         2012-12-20  435   *
efc930fa1d8448 Mauro Carvalho Chehab 2020-04-27  436   * See Documentation/filesystems/caching/netfs-api.rst for a complete
ef778e7ae67cd4 David Howells         2012-12-20  437   * description.
ef778e7ae67cd4 David Howells         2012-12-20  438   */
ef778e7ae67cd4 David Howells         2012-12-20  439  static inline
d8d6f8e68e17cd David Howells         2020-02-06  440  void fscache_invalidate(struct fscache_cookie *cookie,
d8d6f8e68e17cd David Howells         2020-02-06  441  			const void *aux_data, loff_t size, unsigned int flags)
ef778e7ae67cd4 David Howells         2012-12-20  442  {
b4a0c0e0a13cea Jeff Layton           2020-07-30  443  	if (fscache_cookie_enabled(cookie))
d8d6f8e68e17cd David Howells         2020-02-06  444  		__fscache_invalidate(cookie, aux_data, size, flags);
ef778e7ae67cd4 David Howells         2012-12-20  445  }
ef778e7ae67cd4 David Howells         2012-12-20  446  
ef778e7ae67cd4 David Howells         2012-12-20  447  /**
056daf803e87af David Howells         2020-02-06  448   * fscache_operation_valid - Return true if operations resources are usable
056daf803e87af David Howells         2020-02-06  449   * @cres: The resources to check.
ef778e7ae67cd4 David Howells         2012-12-20  450   *
056daf803e87af David Howells         2020-02-06  451   * Returns a pointer to the operations table if usable or NULL if not.
ef778e7ae67cd4 David Howells         2012-12-20  452   */
ef778e7ae67cd4 David Howells         2012-12-20  453  static inline
056daf803e87af David Howells         2020-02-06  454  const struct netfs_cache_ops *fscache_operation_valid(const struct netfs_cache_resources *cres)
ef778e7ae67cd4 David Howells         2012-12-20  455  {
056daf803e87af David Howells         2020-02-06  456  	return fscache_resources_valid(cres) ? cres->ops : NULL;
ef778e7ae67cd4 David Howells         2012-12-20  457  }
ef778e7ae67cd4 David Howells         2012-12-20  458  
26aaeffcafe6cb David Howells         2021-02-22  459  #ifdef FSCACHE_USE_NEW_IO_API
26aaeffcafe6cb David Howells         2021-02-22  460  
26aaeffcafe6cb David Howells         2021-02-22  461  /**
26aaeffcafe6cb David Howells         2021-02-22  462   * fscache_begin_read_operation - Begin a read operation for the netfs lib
a2872465a68c9b David Howells         2021-09-14  463   * @cres: The cache resources for the read being performed
26aaeffcafe6cb David Howells         2021-02-22  464   * @cookie: The cookie representing the cache object
26aaeffcafe6cb David Howells         2021-02-22  465   *
a2872465a68c9b David Howells         2021-09-14  466   * Begin a read operation on behalf of the netfs helper library.  @cres
a2872465a68c9b David Howells         2021-09-14  467   * indicates the cache resources to which the operation state should be
a2872465a68c9b David Howells         2021-09-14  468   * attached; @cookie indicates the cache object that will be accessed.
26aaeffcafe6cb David Howells         2021-02-22  469   *
26aaeffcafe6cb David Howells         2021-02-22  470   * This is intended to be called from the ->begin_cache_operation() netfs lib
26aaeffcafe6cb David Howells         2021-02-22  471   * operation as implemented by the network filesystem.
26aaeffcafe6cb David Howells         2021-02-22  472   *
26aaeffcafe6cb David Howells         2021-02-22  473   * Returns:
26aaeffcafe6cb David Howells         2021-02-22  474   * * 0		- Success
26aaeffcafe6cb David Howells         2021-02-22  475   * * -ENOBUFS	- No caching available
26aaeffcafe6cb David Howells         2021-02-22  476   * * Other error code from the cache, such as -ENOMEM.
26aaeffcafe6cb David Howells         2021-02-22  477   */
26aaeffcafe6cb David Howells         2021-02-22  478  static inline
a2872465a68c9b David Howells         2021-09-14  479  int fscache_begin_read_operation(struct netfs_cache_resources *cres,
26aaeffcafe6cb David Howells         2021-02-22  480  				 struct fscache_cookie *cookie)
26aaeffcafe6cb David Howells         2021-02-22  481  {
b4a0c0e0a13cea Jeff Layton           2020-07-30  482  	if (fscache_cookie_enabled(cookie))
056daf803e87af David Howells         2020-02-06 @483  		return __fscache_begin_read_operation(cres, cookie);
26aaeffcafe6cb David Howells         2021-02-22  484  	return -ENOBUFS;
26aaeffcafe6cb David Howells         2021-02-22  485  }
26aaeffcafe6cb David Howells         2021-02-22  486  

:::::: The code at line 386 was first introduced by commit
:::::: 9d8038c4821d31fb8928f85f9f708ae7e831b775 fscache: Provide resize operation

:::::: TO: David Howells <dhowells@...hat.com>
:::::: CC: David Howells <dhowells@...hat.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (38467 bytes)

Powered by blists - more mailing lists