X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fllite%2Fllite_internal.h;h=c72815cace82a38d861bc2573431dfc0e09dd992;hp=80cac348b87e1100ff36e6238b5822934469e8fa;hb=113303973ec9f8484eb2355a1a6ef3c4c7fd6a56;hpb=ff17cc7e0282d9b1522810e0c5d12171c4d46a2d diff --git a/lustre/llite/llite_internal.h b/lustre/llite/llite_internal.h index 80cac34..c72815c 100644 --- a/lustre/llite/llite_internal.h +++ b/lustre/llite/llite_internal.h @@ -1,72 +1,368 @@ /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: - * - * Copyright (C) 2003 Cluster File Systems, Inc. - * - * This code is issued under the GNU General Public License. - * See the file COPYING in this distribution */ #ifndef LLITE_INTERNAL_H #define LLITE_INTERNAL_H +#ifdef CONFIG_FS_POSIX_ACL +# include +#ifdef HAVE_XATTR_ACL +# include +#endif +#ifdef HAVE_LINUX_POSIX_ACL_XATTR_H +# include +#endif +#endif + +#include +#include +#include +#include /* for s2sbi */ + +/* +struct lustre_intent_data { + __u64 it_lock_handle[2]; + __u32 it_disposition; + __u32 it_status; + __u32 it_lock_mode; + }; */ + +/* If there is no FMODE_EXEC defined, make it to match nothing */ +#ifndef FMODE_EXEC +#define FMODE_EXEC 0 +#endif + +#define LL_IT2STR(it) ((it) ? ldlm_it2str((it)->it_op) : "0") +#define LUSTRE_FPRIVATE(file) ((file)->private_data) + +#ifdef LUSTRE_KERNEL_VERSION +static inline struct lookup_intent *ll_nd2it(struct nameidata *nd) +{ +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) + return &nd->intent; +#else + return nd->intent; +#endif +} +#endif + +struct ll_dentry_data { + int lld_cwd_count; + int lld_mnt_count; + struct obd_client_handle lld_cwd_och; + struct obd_client_handle lld_mnt_och; +#ifndef LUSTRE_KERNEL_VERSION + struct lookup_intent *lld_it; +#endif +}; + +#define ll_d2d(de) ((struct ll_dentry_data*) de->d_fsdata) + +extern struct file_operations ll_pgcache_seq_fops; + +#define LLI_INODE_MAGIC 0x111d0de5 +#define LLI_INODE_DEAD 0xdeadd00d +#define LLI_F_HAVE_OST_SIZE_LOCK 0 +#define LLI_F_HAVE_MDS_SIZE_LOCK 1 + +struct ll_inode_info { + int lli_inode_magic; + struct semaphore lli_size_sem; + void *lli_size_sem_owner; + struct semaphore lli_open_sem; + struct semaphore lli_write_sem; + struct lov_stripe_md *lli_smd; + char *lli_symlink_name; + __u64 lli_maxbytes; + __u64 lli_io_epoch; + unsigned long lli_flags; + + /* this lock protects s_d_w and p_w_ll and mmap_cnt */ + spinlock_t lli_lock; + struct list_head lli_pending_write_llaps; + int lli_send_done_writing; + atomic_t lli_mmap_cnt; + + struct list_head lli_close_item; + + /* for writepage() only to communicate to fsync */ + int lli_async_rc; + + struct posix_acl *lli_posix_acl; + + struct list_head lli_dead_list; + + struct semaphore lli_och_sem; /* Protects access to och pointers + and their usage counters */ + /* We need all three because every inode may be opened in different + modes */ + struct obd_client_handle *lli_mds_read_och; + __u64 lli_open_fd_read_count; + struct obd_client_handle *lli_mds_write_och; + __u64 lli_open_fd_write_count; + struct obd_client_handle *lli_mds_exec_och; + __u64 lli_open_fd_exec_count; + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) + struct inode lli_vfs_inode; +#endif +}; + +/* + * Locking to guarantee consistency of non-atomic updates to long long i_size, + * consistency between file size and KMS, and consistency within + * ->lli_smd->lsm_oinfo[]'s. + * + * Implemented by ->lli_size_sem and ->lsm_sem, nested in that order. + */ + +void ll_inode_size_lock(struct inode *inode, int lock_lsm); +void ll_inode_size_unlock(struct inode *inode, int unlock_lsm); + +// FIXME: replace the name of this with LL_I to conform to kernel stuff +// static inline struct ll_inode_info *LL_I(struct inode *inode) +static inline struct ll_inode_info *ll_i2info(struct inode *inode) +{ +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) + return container_of(inode, struct ll_inode_info, lli_vfs_inode); +#else + return (struct ll_inode_info *)&(inode->u.generic_ip); +#endif +} + +/* default to about 40meg of readahead on a given system. That much tied + * up in 512k readahead requests serviced at 40ms each is about 1GB/s. */ +#define SBI_DEFAULT_READAHEAD_MAX (40UL << (20 - CFS_PAGE_SHIFT)) + +/* default to read-ahead full files smaller than 2MB on the second read */ +#define SBI_DEFAULT_READAHEAD_WHOLE_MAX (2UL << (20 - CFS_PAGE_SHIFT)) + +enum ra_stat { + RA_STAT_HIT = 0, + RA_STAT_MISS, + RA_STAT_DISTANT_READPAGE, + RA_STAT_MISS_IN_WINDOW, + RA_STAT_FAILED_GRAB_PAGE, + RA_STAT_FAILED_MATCH, + RA_STAT_DISCARDED, + RA_STAT_ZERO_LEN, + RA_STAT_ZERO_WINDOW, + RA_STAT_EOF, + RA_STAT_MAX_IN_FLIGHT, + RA_STAT_WRONG_GRAB_PAGE, + _NR_RA_STAT, +}; + +struct ll_ra_info { + unsigned long ra_cur_pages; + unsigned long ra_max_pages; + unsigned long ra_max_read_ahead_whole_pages; + unsigned long ra_stats[_NR_RA_STAT]; +}; + +/* LL_HIST_MAX=32 causes an overflow */ +#define LL_HIST_MAX 28 +#define LL_HIST_START 12 /* buckets start at 2^12 = 4k */ +#define LL_PROCESS_HIST_MAX 10 +struct per_process_info { + pid_t pid; + struct obd_histogram pp_r_hist; + struct obd_histogram pp_w_hist; +}; + +/* pp_extents[LL_PROCESS_HIST_MAX] will hold the combined process info */ +struct ll_rw_extents_info { + struct per_process_info pp_extents[LL_PROCESS_HIST_MAX + 1]; +}; + +#define LL_OFFSET_HIST_MAX 100 +struct ll_rw_process_info { + pid_t rw_pid; + int rw_op; + loff_t rw_range_start; + loff_t rw_range_end; + loff_t rw_last_file_pos; + loff_t rw_offset; + size_t rw_smallest_extent; + size_t rw_largest_extent; + struct file *rw_last_file; +}; + +enum vfs_ops_list { + VFS_OPS_READ = 0, + VFS_OPS_WRITE, + VFS_OPS_IOCTL, + VFS_OPS_OPEN, + VFS_OPS_RELEASE, + VFS_OPS_MMAP, + VFS_OPS_SEEK, + VFS_OPS_FSYNC, + VFS_OPS_FLOCK, + VFS_OPS_SETATTR, + VFS_OPS_GETATTR, + VFS_OPS_SETXATTR, + VFS_OPS_GETXATTR, + VFS_OPS_LISTXATTR, + VFS_OPS_REMOVEXATTR, + VFS_OPS_TRUNCATE, + VFS_OPS_INODE_PERMISSION, + VFS_OPS_LAST, +}; + +enum vfs_track_type { + VFS_TRACK_ALL = 0, /* track all processes */ + VFS_TRACK_PID, /* track process with this pid */ + VFS_TRACK_PPID, /* track processes with this ppid */ + VFS_TRACK_GID, /* track processes with this gid */ + VFS_TRACK_LAST, +}; + +/* flags for sbi->ll_flags */ +#define LL_SBI_NOLCK 0x01 /* DLM locking disabled (directio-only) */ +#define LL_SBI_CHECKSUM 0x02 /* checksum each page as it's written */ +#define LL_SBI_FLOCK 0x04 +#define LL_SBI_USER_XATTR 0x08 /* support user xattr */ +#define LL_SBI_ACL 0x10 /* support ACL */ +#define LL_SBI_JOIN 0x20 /* support JOIN */ + struct ll_sb_info { + struct list_head ll_list; + /* this protects pglist and ra_info. It isn't safe to + * grab from interrupt contexts */ + spinlock_t ll_lock; struct obd_uuid ll_sb_uuid; -// struct lustre_handle ll_mdc_conn; struct obd_export *ll_mdc_exp; struct obd_export *ll_osc_exp; - struct proc_dir_entry* ll_proc_root; + struct proc_dir_entry *ll_proc_root; obd_id ll_rootino; /* number of root inode */ - struct obd_uuid ll_mds_uuid; - struct obd_uuid ll_mds_peer_uuid; - struct lustre_mount_data *ll_lmd; - char *ll_instance; - int ll_flags; - wait_queue_head_t ll_commitcbd_waitq; - wait_queue_head_t ll_commitcbd_ctl_waitq; - int ll_commitcbd_flags; - struct task_struct *ll_commitcbd_thread; - time_t ll_commitcbd_waketime; - time_t ll_commitcbd_timeout; - spinlock_t ll_commitcbd_lock; struct list_head ll_conn_chain; /* per-conn chain of SBs */ + struct lustre_client_ocd ll_lco; - struct hlist_head ll_orphan_dentry_list; /*please don't ask -p*/ + struct list_head ll_orphan_dentry_list; /*please don't ask -p*/ struct ll_close_queue *ll_lcq; struct lprocfs_stats *ll_stats; /* lprocfs stats counter */ - spinlock_t ll_pglist_lock; + unsigned long ll_async_page_max; + unsigned long ll_async_page_count; unsigned long ll_pglist_gen; - struct list_head ll_pglist; + struct list_head ll_pglist; /* all pages (llap_pglist_item) */ + + struct ll_ra_info ll_ra_info; + unsigned int ll_namelen; + struct file_operations *ll_fop; + + struct list_head ll_deathrow; /* inodes to be destroyed (b1443) */ + spinlock_t ll_deathrow_lock; + /* =0 - hold lock over whole read/write + * >0 - max. chunk to be read/written w/o lock re-acquiring */ + unsigned long ll_max_rw_chunk; + + /* Statistics */ + struct ll_rw_extents_info ll_rw_extents_info; + int ll_extent_process_count; + struct ll_rw_process_info ll_rw_process_info[LL_PROCESS_HIST_MAX]; + unsigned int ll_offset_process_count; + struct ll_rw_process_info ll_rw_offset_info[LL_OFFSET_HIST_MAX]; + unsigned int ll_rw_offset_entry_count; + struct lprocfs_stats *ll_vfs_ops_stats; + enum vfs_track_type ll_vfs_track_type; + int ll_vfs_track_id; +}; + +#define LL_DEFAULT_MAX_RW_CHUNK (32 * 1024 * 1024) + +struct ll_ra_read { + pgoff_t lrr_start; + pgoff_t lrr_count; + struct task_struct *lrr_reader; + struct list_head lrr_linkage; }; +/* + * per file-descriptor read-ahead data. + */ struct ll_readahead_state { spinlock_t ras_lock; - unsigned long ras_last, ras_window, ras_next_index; + /* + * index of the last page that read(2) needed and that wasn't in the + * cache. Used by ras_update() to detect seeks. + * + * XXX nikita: if access seeks into cached region, Lustre doesn't see + * this. + */ + unsigned long ras_last_readpage; + /* + * number of pages read after last read-ahead window reset. As window + * is reset on each seek, this is effectively a number of consecutive + * accesses. Maybe ->ras_accessed_in_window is better name. + * + * XXX nikita: window is also reset (by ras_update()) when Lustre + * believes that memory pressure evicts read-ahead pages. In that + * case, it probably doesn't make sense to expand window to + * PTLRPC_MAX_BRW_PAGES on the third access. + */ + unsigned long ras_consecutive_pages; + /* + * number of read requests after the last read-ahead window reset + * As window is reset on each seek, this is effectively the number + * on consecutive read request and is used to trigger read-ahead. + */ + unsigned long ras_consecutive_requests; + /* + * Parameters of current read-ahead window. Handled by + * ras_update(). On the initial access to the file or after a seek, + * window is reset to 0. After 3 consecutive accesses, window is + * expanded to PTLRPC_MAX_BRW_PAGES. Afterwards, window is enlarged by + * PTLRPC_MAX_BRW_PAGES chunks up to ->ra_max_pages. + */ + unsigned long ras_window_start, ras_window_len; + /* + * Where next read-ahead should start at. This lies within read-ahead + * window. Read-ahead window is read in pieces rather than at once + * because: 1. lustre limits total number of pages under read-ahead by + * ->ra_max_pages (see ll_ra_count_get()), 2. client cannot read pages + * not covered by DLM lock. + */ + unsigned long ras_next_readahead; + /* + * Total number of ll_file_read requests issued, reads originating + * due to mmap are not counted in this total. This value is used to + * trigger full file read-ahead after multiple reads to a small file. + */ + unsigned long ras_requests; + /* + * Page index with respect to the current request, these value + * will not be accurate when dealing with reads issued via mmap. + */ + unsigned long ras_request_index; + /* + * list of struct ll_ra_read's one per read(2) call current in + * progress against this file descriptor. Used by read-ahead code, + * protected by ->ras_lock. + */ + struct list_head ras_read_beads; }; extern kmem_cache_t *ll_file_data_slab; +struct lustre_handle; struct ll_file_data { - struct obd_client_handle fd_mds_och; struct ll_readahead_state fd_ras; + int fd_omode; + struct lustre_handle fd_cwlockh; + unsigned long fd_gid; __u32 fd_flags; }; -struct lustre_handle; struct lov_stripe_md; extern spinlock_t inode_lock; -extern void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi); extern struct proc_dir_entry *proc_lustre_fs_root; -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) -# define hlist_del_init list_del_init -#endif - static inline struct inode *ll_info2i(struct ll_inode_info *lli) { #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) @@ -76,53 +372,74 @@ static inline struct inode *ll_info2i(struct ll_inode_info *lli) #endif } -static inline void ll_i2uctxt(struct ll_uctxt *ctxt, struct inode *i1, - struct inode *i2) -{ - LASSERT(i1); - LASSERT(ctxt); - - if (in_group_p(i1->i_gid)) - ctxt->gid1 = i1->i_gid; - else - ctxt->gid1 = -1; - - if (i2) { - if (in_group_p(i2->i_gid)) - ctxt->gid2 = i2->i_gid; - else - ctxt->gid2 = -1; - } else - ctxt->gid2 = 0; -} - struct it_cb_data { struct inode *icbd_parent; struct dentry **icbd_childp; obd_id hash; }; +void ll_i2gids(__u32 *suppgids, struct inode *i1,struct inode *i2); + #define LLAP_MAGIC 98764321 +extern kmem_cache_t *ll_async_page_slab; +extern size_t ll_async_page_slab_size; struct ll_async_page { - int llap_magic; + int llap_magic; + /* only trust these if the page lock is providing exclusion */ + unsigned int llap_write_queued:1, + llap_defer_uptodate:1, + llap_origin:3, + llap_ra_used:1, + llap_ignore_quota:1; void *llap_cookie; struct page *llap_page; struct list_head llap_pending_write; - /* only trust these if the page lock is providing exclusion */ - int llap_write_queued:1, - llap_defer_uptodate:1; - struct list_head llap_proc_item; + struct list_head llap_pglist_item; + /* checksum for paranoid I/O debugging */ + __u32 llap_checksum; }; -#define LL_CDEBUG_PAGE(mask, page, fmt, arg...) \ - CDEBUG(mask, "page %p map %p ind %lu priv %0lx: " fmt, \ - page, page->mapping, page->index, page->private, ## arg) +/* + * enumeration of llap_from_page() call-sites. Used to export statistics in + * /proc/fs/lustre/llite/fsN/dump_page_cache. + */ +enum { + LLAP_ORIGIN_UNKNOWN = 0, + LLAP_ORIGIN_READPAGE, + LLAP_ORIGIN_READAHEAD, + LLAP_ORIGIN_COMMIT_WRITE, + LLAP_ORIGIN_WRITEPAGE, + LLAP_ORIGIN_REMOVEPAGE, + LLAP__ORIGIN_MAX, +}; +extern char *llap_origins[]; + +#ifdef HAVE_REGISTER_CACHE +#define ll_register_cache(cache) register_cache(cache) +#define ll_unregister_cache(cache) unregister_cache(cache) +#else +#define ll_register_cache(cache) do {} while (0) +#define ll_unregister_cache(cache) do {} while (0) +#endif + +void ll_ra_read_in(struct file *f, struct ll_ra_read *rar); +void ll_ra_read_ex(struct file *f, struct ll_ra_read *rar); +struct ll_ra_read *ll_ra_read_get(struct file *f); /* llite/lproc_llite.c */ +#ifdef LPROCFS int lprocfs_register_mountpoint(struct proc_dir_entry *parent, struct super_block *sb, char *osc, char *mdc); void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi); +void ll_vfs_ops_tally(struct ll_sb_info *sbi, int op); +#else +static inline int lprocfs_register_mountpoint(struct proc_dir_entry *parent, + struct super_block *sb, char *osc, char *mdc){return 0;} +static inline void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi) {} +static void ll_vfs_ops_tally(struct ll_sb_info *sbi, int op) {} +#endif + /* llite/dir.c */ extern struct file_operations ll_dir_operations; @@ -137,35 +454,37 @@ int ll_mdc_cancel_unused(struct lustre_handle *, struct inode *, int flags, void *opaque); int ll_mdc_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *, void *data, int flag); -void ll_prepare_mdc_op_data(struct mdc_op_data *, - struct inode *i1, struct inode *i2, - const char *name, int namelen, int mode); +int ll_prepare_mdc_op_data(struct mdc_op_data *, + struct inode *i1, struct inode *i2, + const char *name, int namelen, int mode); +#ifndef LUSTRE_KERNEL_VERSION +struct lookup_intent *ll_convert_intent(struct open_intent *oit, + int lookup_flags); +#endif /* llite/rw.c */ int ll_prepare_write(struct file *, struct page *, unsigned from, unsigned to); int ll_commit_write(struct file *, struct page *, unsigned from, unsigned to); +int ll_writepage(struct page *page); void ll_inode_fill_obdo(struct inode *inode, int cmd, struct obdo *oa); -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) -#define ll_ap_completion ll_ap_completion_24 -void ll_ap_completion_24(void *data, int cmd, int rc); -#else -#define ll_ap_completion ll_ap_completion_26 -void ll_ap_completion_26(void *data, int cmd, int rc); -#endif +int ll_ap_completion(void *data, int cmd, struct obdo *oa, int rc); +int llap_shrink_cache(struct ll_sb_info *sbi, int shrink_fraction); +extern struct cache_definition ll_cache_definition; void ll_removepage(struct page *page); -int ll_sync_page(struct page *page); int ll_readpage(struct file *file, struct page *page); struct ll_async_page *llap_from_cookie(void *cookie); -struct ll_async_page *llap_from_page(struct page *page); +struct ll_async_page *llap_cast_private(struct page *page); void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras); - +void ll_ra_accounting(struct ll_async_page *llap,struct address_space *mapping); void ll_truncate(struct inode *inode); +int ll_sync_page_range(struct inode *, struct address_space *, loff_t, size_t); /* llite/file.c */ extern struct file_operations ll_file_operations; +extern struct file_operations ll_file_operations_flock; extern struct inode_operations ll_file_inode_operations; -extern struct inode_operations ll_special_inode_operations; extern int ll_inode_revalidate_it(struct dentry *, struct lookup_intent *); +extern int ll_have_md_lock(struct inode *inode, __u64 bits); int ll_extent_lock(struct ll_file_data *, struct inode *, struct lov_stripe_md *, int mode, ldlm_policy_data_t *, struct lustre_handle *, int ast_flags); @@ -174,55 +493,105 @@ int ll_extent_unlock(struct ll_file_data *, struct inode *, int ll_file_open(struct inode *inode, struct file *file); int ll_file_release(struct inode *inode, struct file *file); int ll_lsm_getattr(struct obd_export *, struct lov_stripe_md *, struct obdo *); -int ll_glimpse_size(struct inode *inode, struct ost_lvb *lvb); +int ll_glimpse_ioctl(struct ll_sb_info *sbi, + struct lov_stripe_md *lsm, lstat_t *st); +int ll_glimpse_size(struct inode *inode, int ast_flags); +int ll_local_open(struct file *file, + struct lookup_intent *it, struct ll_file_data *fd, + struct obd_client_handle *och); +int ll_release_openhandle(struct dentry *, struct lookup_intent *); +int ll_mdc_close(struct obd_export *mdc_exp, struct inode *inode, + struct file *file); +int ll_mdc_real_close(struct inode *inode, int flags); +extern void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid, struct file + *file, size_t count, int rw); #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -int ll_getattr(struct vfsmount *mnt, struct dentry *de, +int ll_getattr_it(struct vfsmount *mnt, struct dentry *de, struct lookup_intent *it, struct kstat *stat); +int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat); +#endif +struct ll_file_data *ll_file_data_get(void); +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) +int ll_inode_permission(struct inode *inode, int mask, struct nameidata *nd); +#else +int ll_inode_permission(struct inode *inode, int mask); #endif +int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file, + int flags, struct lov_user_md *lum, + int lum_size); +int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename, + struct lov_mds_md **lmm, int *lmm_size, + struct ptlrpc_request **request); +int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump); +int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmm, + int *lmm_size, struct ptlrpc_request **request); /* llite/dcache.c */ void ll_intent_drop_lock(struct lookup_intent *); void ll_intent_release(struct lookup_intent *); extern void ll_set_dd(struct dentry *de); +int ll_drop_dentry(struct dentry *dentry); void ll_unhash_aliases(struct inode *); void ll_frob_intent(struct lookup_intent **itp, struct lookup_intent *deft); void ll_lookup_finish_locks(struct lookup_intent *it, struct dentry *dentry); +int ll_dcompare(struct dentry *parent, struct qstr *d_name, struct qstr *name); +int revalidate_it_finish(struct ptlrpc_request *request, int offset, + struct lookup_intent *it, struct dentry *de); /* llite/llite_lib.c */ - -extern struct super_operations ll_super_operations; extern struct super_operations lustre_super_operations; char *ll_read_opt(const char *opt, char *data); -int ll_set_opt(const char *opt, char *data, int fl); -void ll_options(char *options, char **ost, char **mds, int *flags); void ll_lli_init(struct ll_inode_info *lli); -int ll_fill_super(struct super_block *sb, void *data, int silent); -int lustre_fill_super(struct super_block *sb, void *data, int silent); -void lustre_put_super(struct super_block *sb); +int ll_fill_super(struct super_block *sb); void ll_put_super(struct super_block *sb); struct inode *ll_inode_from_lock(struct ldlm_lock *lock); void ll_clear_inode(struct inode *inode); -int ll_attr2inode(struct inode *inode, struct iattr *attr, int trunc); int ll_setattr_raw(struct inode *inode, struct iattr *attr); int ll_setattr(struct dentry *de, struct iattr *attr); +#ifndef HAVE_STATFS_DENTRY_PARAM int ll_statfs(struct super_block *sb, struct kstatfs *sfs); +#else +int ll_statfs(struct dentry *de, struct kstatfs *sfs); +#endif int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs, - unsigned long maxage); -void ll_update_inode(struct inode *inode, struct mds_body *body, - struct lov_stripe_md *lsm); -int it_disposition(struct lookup_intent *it, int flag); -void it_set_disposition(struct lookup_intent *it, int flag); + __u64 max_age); +void ll_update_inode(struct inode *inode, struct lustre_md *md); void ll_read_inode2(struct inode *inode, void *opaque); int ll_iocontrol(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg); +#ifdef HAVE_UMOUNTBEGIN_VFSMOUNT +void ll_umount_begin(struct vfsmount *vfsmnt, int flags); +#else void ll_umount_begin(struct super_block *sb); +#endif +int ll_remount_fs(struct super_block *sb, int *flags, char *data); int ll_prep_inode(struct obd_export *exp, struct inode **inode, struct ptlrpc_request *req, int offset, struct super_block *); +void lustre_dump_dentry(struct dentry *, int recur); +void lustre_dump_inode(struct inode *); +struct ll_async_page *llite_pglist_next_llap(struct ll_sb_info *sbi, + struct list_head *list); +int ll_obd_statfs(struct inode *inode, void *arg); +int ll_get_max_mdsize(struct ll_sb_info *sbi, int *max_mdsize); +int ll_process_config(struct lustre_cfg *lcfg); + +/* llite/llite_nfs.c */ +extern struct export_operations lustre_export_operations; __u32 get_uuid2int(const char *name, int len); struct dentry *ll_fh_to_dentry(struct super_block *sb, __u32 *data, int len, int fhtype, int parent); int ll_dentry_to_fh(struct dentry *, __u32 *datap, int *lenp, int need_parent); + +/* llite/special.c */ +extern struct inode_operations ll_special_inode_operations; +extern struct file_operations ll_special_chr_inode_fops; +extern struct file_operations ll_special_chr_file_fops; +extern struct file_operations ll_special_blk_inode_fops; +extern struct file_operations ll_special_fifo_inode_fops; +extern struct file_operations ll_special_fifo_file_fops; +extern struct file_operations ll_special_sock_inode_fops; + /* llite/symlink.c */ extern struct inode_operations ll_fast_symlink_inode_operations; @@ -243,16 +612,31 @@ void ll_queue_done_writing(struct inode *inode); void ll_close_thread_shutdown(struct ll_close_queue *lcq); int ll_close_thread_start(struct ll_close_queue **lcq_ret); -/* generic */ -#define LL_SUPER_MAGIC 0x0BD00BD0 +/* llite/llite_mmap.c */ +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) +typedef struct rb_root rb_root_t; +typedef struct rb_node rb_node_t; +#endif -#define LL_SBI_NOLCK 0x1 -#define LL_SBI_READAHEAD 0x2 +struct ll_lock_tree_node; +struct ll_lock_tree { + rb_root_t lt_root; + struct list_head lt_locked_list; + struct ll_file_data *lt_fd; +}; -#define LL_MAX_BLKSIZE (4UL * 1024 * 1024) +int ll_teardown_mmaps(struct address_space *mapping, __u64 first, __u64 last); +int ll_file_mmap(struct file * file, struct vm_area_struct * vma); +struct ll_lock_tree_node * ll_node_from_inode(struct inode *inode, __u64 start, + __u64 end, ldlm_mode_t mode); +int ll_tree_lock(struct ll_lock_tree *tree, + struct ll_lock_tree_node *first_node, + const char *buf, size_t count, int ast_flags); +int ll_tree_unlock(struct ll_lock_tree *tree); + +#define ll_s2sbi(sb) (s2lsi(sb)->lsi_llsbi) #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) -#define ll_s2sbi(sb) ((struct ll_sb_info *)((sb)->s_fs_info)) void __d_rehash(struct dentry * entry, int lock); static inline __u64 ll_ts2u64(struct timespec *time) { @@ -260,7 +644,6 @@ static inline __u64 ll_ts2u64(struct timespec *time) return t; } #else /* 2.4 here */ -#define ll_s2sbi(sb) ((struct ll_sb_info *)((sb)->u.generic_sbp)) static inline __u64 ll_ts2u64(time_t *time) { return *time; @@ -319,4 +702,12 @@ static inline __u64 ll_file_maxbytes(struct inode *inode) return ll_i2info(inode)->lli_maxbytes; } +/* llite/xattr.c */ +int ll_setxattr(struct dentry *dentry, const char *name, + const void *value, size_t size, int flags); +ssize_t ll_getxattr(struct dentry *dentry, const char *name, + void *buffer, size_t size); +ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size); +int ll_removexattr(struct dentry *dentry, const char *name); + #endif /* LLITE_INTERNAL_H */