diff options
Diffstat (limited to 'fs/9p')
| -rw-r--r-- | fs/9p/cache.c | 10 | ||||
| -rw-r--r-- | fs/9p/v9fs.c | 4 | ||||
| -rw-r--r-- | fs/9p/v9fs.h | 13 | ||||
| -rw-r--r-- | fs/9p/vfs_addr.c | 62 | ||||
| -rw-r--r-- | fs/9p/vfs_inode.c | 13 |
5 files changed, 37 insertions, 65 deletions
diff --git a/fs/9p/cache.c b/fs/9p/cache.c index 55e108e5e133..1c8dc696d516 100644 --- a/fs/9p/cache.c +++ b/fs/9p/cache.c @@ -49,22 +49,20 @@ int v9fs_cache_session_get_cookie(struct v9fs_session_info *v9ses, void v9fs_cache_inode_get_cookie(struct inode *inode) { - struct v9fs_inode *v9inode; + struct v9fs_inode *v9inode = V9FS_I(inode); struct v9fs_session_info *v9ses; __le32 version; __le64 path; if (!S_ISREG(inode->i_mode)) return; - - v9inode = V9FS_I(inode); - if (WARN_ON(v9inode->fscache)) + if (WARN_ON(v9fs_inode_cookie(v9inode))) return; version = cpu_to_le32(v9inode->qid.version); path = cpu_to_le64(v9inode->qid.path); v9ses = v9fs_inode2v9ses(inode); - v9inode->fscache = + v9inode->netfs_ctx.cache = fscache_acquire_cookie(v9fs_session_cache(v9ses), 0, &path, sizeof(path), @@ -72,5 +70,5 @@ void v9fs_cache_inode_get_cookie(struct inode *inode) i_size_read(&v9inode->vfs_inode)); p9_debug(P9_DEBUG_FSC, "inode %p get cookie %p\n", - inode, v9inode->fscache); + inode, v9fs_inode_cookie(v9inode)); } diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 08f65c40af4f..e28ddf763b3b 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -623,9 +623,7 @@ static void v9fs_sysfs_cleanup(void) static void v9fs_inode_init_once(void *foo) { struct v9fs_inode *v9inode = (struct v9fs_inode *)foo; -#ifdef CONFIG_9P_FSCACHE - v9inode->fscache = NULL; -#endif + memset(&v9inode->qid, 0, sizeof(v9inode->qid)); inode_init_once(&v9inode->vfs_inode); } diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h index bc8b30205d36..ec0e8df3b2eb 100644 --- a/fs/9p/v9fs.h +++ b/fs/9p/v9fs.h @@ -9,6 +9,7 @@ #define FS_9P_V9FS_H #include <linux/backing-dev.h> +#include <linux/netfs.h> /** * enum p9_session_flags - option flags for each 9P session @@ -108,14 +109,15 @@ struct v9fs_session_info { #define V9FS_INO_INVALID_ATTR 0x01 struct v9fs_inode { -#ifdef CONFIG_9P_FSCACHE - struct fscache_cookie *fscache; -#endif + struct { + /* These must be contiguous */ + struct inode vfs_inode; /* the VFS's inode record */ + struct netfs_i_context netfs_ctx; /* Netfslib context */ + }; struct p9_qid qid; unsigned int cache_validity; struct p9_fid *writeback_fid; struct mutex v_mutex; - struct inode vfs_inode; }; static inline struct v9fs_inode *V9FS_I(const struct inode *inode) @@ -126,7 +128,7 @@ static inline struct v9fs_inode *V9FS_I(const struct inode *inode) static inline struct fscache_cookie *v9fs_inode_cookie(struct v9fs_inode *v9inode) { #ifdef CONFIG_9P_FSCACHE - return v9inode->fscache; + return netfs_i_cookie(&v9inode->vfs_inode); #else return NULL; #endif @@ -163,6 +165,7 @@ extern struct inode *v9fs_inode_from_fid(struct v9fs_session_info *v9ses, extern const struct inode_operations v9fs_dir_inode_operations_dotl; extern const struct inode_operations v9fs_file_inode_operations_dotl; extern const struct inode_operations v9fs_symlink_inode_operations_dotl; +extern const struct netfs_request_ops v9fs_req_ops; extern struct inode *v9fs_inode_from_fid_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid, struct super_block *sb, int new); diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c index 76956c9d2af9..501128188343 100644 --- a/fs/9p/vfs_addr.c +++ b/fs/9p/vfs_addr.c @@ -28,12 +28,12 @@ #include "fid.h" /** - * v9fs_req_issue_op - Issue a read from 9P + * v9fs_issue_read - Issue a read from 9P * @subreq: The read to make */ -static void v9fs_req_issue_op(struct netfs_read_subrequest *subreq) +static void v9fs_issue_read(struct netfs_io_subrequest *subreq) { - struct netfs_read_request *rreq = subreq->rreq; + struct netfs_io_request *rreq = subreq->rreq; struct p9_fid *fid = rreq->netfs_priv; struct iov_iter to; loff_t pos = subreq->start + subreq->transferred; @@ -52,20 +52,21 @@ static void v9fs_req_issue_op(struct netfs_read_subrequest *subreq) } /** - * v9fs_init_rreq - Initialise a read request + * v9fs_init_request - Initialise a read request * @rreq: The read request * @file: The file being read from */ -static void v9fs_init_rreq(struct netfs_read_request *rreq, struct file *file) +static int v9fs_init_request(struct netfs_io_request *rreq, struct file *file) { struct p9_fid *fid = file->private_data; refcount_inc(&fid->count); rreq->netfs_priv = fid; + return 0; } /** - * v9fs_req_cleanup - Cleanup request initialized by v9fs_init_rreq + * v9fs_req_cleanup - Cleanup request initialized by v9fs_init_request * @mapping: unused mapping of request to cleanup * @priv: private data to cleanup, a fid, guaranted non-null. */ @@ -77,21 +78,10 @@ static void v9fs_req_cleanup(struct address_space *mapping, void *priv) } /** - * v9fs_is_cache_enabled - Determine if caching is enabled for an inode - * @inode: The inode to check - */ -static bool v9fs_is_cache_enabled(struct inode *inode) -{ - struct fscache_cookie *cookie = v9fs_inode_cookie(V9FS_I(inode)); - - return fscache_cookie_enabled(cookie) && cookie->cache_priv; -} - -/** * v9fs_begin_cache_operation - Begin a cache operation for a read * @rreq: The read request */ -static int v9fs_begin_cache_operation(struct netfs_read_request *rreq) +static int v9fs_begin_cache_operation(struct netfs_io_request *rreq) { #ifdef CONFIG_9P_FSCACHE struct fscache_cookie *cookie = v9fs_inode_cookie(V9FS_I(rreq->inode)); @@ -102,37 +92,14 @@ static int v9fs_begin_cache_operation(struct netfs_read_request *rreq) #endif } -static const struct netfs_read_request_ops v9fs_req_ops = { - .init_rreq = v9fs_init_rreq, - .is_cache_enabled = v9fs_is_cache_enabled, +const struct netfs_request_ops v9fs_req_ops = { + .init_request = v9fs_init_request, .begin_cache_operation = v9fs_begin_cache_operation, - .issue_op = v9fs_req_issue_op, + .issue_read = v9fs_issue_read, .cleanup = v9fs_req_cleanup, }; /** - * v9fs_vfs_readpage - read an entire page in from 9P - * @file: file being read - * @page: structure to page - * - */ -static int v9fs_vfs_readpage(struct file *file, struct page *page) -{ - struct folio *folio = page_folio(page); - - return netfs_readpage(file, folio, &v9fs_req_ops, NULL); -} - -/** - * v9fs_vfs_readahead - read a set of pages from 9P - * @ractl: The readahead parameters - */ -static void v9fs_vfs_readahead(struct readahead_control *ractl) -{ - netfs_readahead(ractl, &v9fs_req_ops, NULL); -} - -/** * v9fs_release_page - release the private state associated with a page * @page: The page to be released * @gfp: The caller's allocation restrictions @@ -308,8 +275,7 @@ static int v9fs_write_begin(struct file *filp, struct address_space *mapping, * file. We need to do this before we get a lock on the page in case * there's more than one writer competing for the same cache block. */ - retval = netfs_write_begin(filp, mapping, pos, len, flags, &folio, fsdata, - &v9fs_req_ops, NULL); + retval = netfs_write_begin(filp, mapping, pos, len, flags, &folio, fsdata); if (retval < 0) return retval; @@ -370,8 +336,8 @@ static bool v9fs_dirty_folio(struct address_space *mapping, struct folio *folio) #endif const struct address_space_operations v9fs_addr_operations = { - .readpage = v9fs_vfs_readpage, - .readahead = v9fs_vfs_readahead, + .readpage = netfs_readpage, + .readahead = netfs_readahead, .dirty_folio = v9fs_dirty_folio, .writepage = v9fs_vfs_writepage, .write_begin = v9fs_write_begin, diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 84c3cf7dffa5..55367ecb9442 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -231,9 +231,6 @@ struct inode *v9fs_alloc_inode(struct super_block *sb) v9inode = alloc_inode_sb(sb, v9fs_inode_cache, GFP_KERNEL); if (!v9inode) return NULL; -#ifdef CONFIG_9P_FSCACHE - v9inode->fscache = NULL; -#endif v9inode->writeback_fid = NULL; v9inode->cache_validity = 0; mutex_init(&v9inode->v_mutex); @@ -250,6 +247,14 @@ void v9fs_free_inode(struct inode *inode) kmem_cache_free(v9fs_inode_cache, V9FS_I(inode)); } +/* + * Set parameters for the netfs library + */ +static void v9fs_set_netfs_context(struct inode *inode) +{ + netfs_i_context_init(inode, &v9fs_req_ops); +} + int v9fs_init_inode(struct v9fs_session_info *v9ses, struct inode *inode, umode_t mode, dev_t rdev) { @@ -338,6 +343,8 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses, err = -EINVAL; goto error; } + + v9fs_set_netfs_context(inode); error: return err; |