-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#ifndef LLITE_INTERNAL_H
#define LLITE_INTERNAL_H
-
-#include <lustre_acl.h>
-
#include <lustre_debug.h>
#include <lustre_ver.h>
#include <lustre_disk.h> /* for s2sbi */
/* for struct cl_lock_descr and struct cl_io */
#include <cl_object.h>
#include <lclient.h>
+#include <lustre_lmv.h>
#include <lustre_mdc.h>
#include <linux/lustre_intent.h>
+#include <linux/compat.h>
#ifndef FMODE_EXEC
#define FMODE_EXEC 0
#define VM_FAULT_RETRY 0
#endif
+/* Kernel 3.1 kills LOOKUP_CONTINUE, LOOKUP_PARENT is equivalent to it.
+ * seem kernel commit 49084c3bb2055c401f3493c13edae14d49128ca0 */
+#ifndef LOOKUP_CONTINUE
+#define LOOKUP_CONTINUE LOOKUP_PARENT
+#endif
+
/** Only used on client-side for indicating the tail of dir hash/offset. */
#define LL_DIR_END_OFF 0x7fffffffffffffffULL
#define LL_DIR_END_OFF_32BIT 0x7fffffffUL
-#ifndef DCACHE_LUSTRE_INVALID
-#define DCACHE_LUSTRE_INVALID 0x4000000
-#endif
-
#define LL_IT2STR(it) ((it) ? ldlm_it2str((it)->it_op) : "0")
#define LUSTRE_FPRIVATE(file) ((file)->private_data)
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;
- struct lookup_intent *lld_it;
- unsigned int lld_sa_generation;
+ struct lookup_intent *lld_it;
+ unsigned int lld_sa_generation;
+ unsigned int lld_invalid:1;
+ struct rcu_head lld_rcu_head;
};
#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 REMOTE_PERM_HASHSIZE 16
struct ll_getname_data {
- char *lgd_name; /* points to a buffer with NAME_MAX+1 size */
- struct lu_fid lgd_fid; /* target fid we are looking for */
- int lgd_found; /* inode matched? */
+#ifdef HAVE_DIR_CONTEXT
+ struct dir_context ctx;
+#endif
+ char *lgd_name; /* points to a buffer with NAME_MAX+1 size */
+ struct lu_fid lgd_fid; /* target fid we are looking for */
+ int lgd_found; /* inode matched? */
};
/* llite setxid/access permission for user on remote client */
struct ll_remote_perm {
- cfs_hlist_node_t lrp_list;
+ struct hlist_node lrp_list;
uid_t lrp_uid;
gid_t lrp_gid;
uid_t lrp_fsuid;
/* Sizeon-on-MDS attributes are changed. An attribute update needs to
* be sent to MDS. */
LLIF_SOM_DIRTY = (1 << 3),
- /* File is contented */
- LLIF_CONTENDED = (1 << 4),
- /* Truncate uses server lock for this file */
- LLIF_SRVLOCK = (1 << 5),
-
+ /* File data is modified. */
+ LLIF_DATA_MODIFIED = (1 << 4),
+ /* File is being restored */
+ LLIF_FILE_RESTORING = (1 << 5),
+ /* Xattr cache is attached to the file */
+ LLIF_XATTR_CACHE = (1 << 6),
};
struct ll_inode_info {
- __u32 lli_inode_magic;
- __u32 lli_flags;
- __u64 lli_ioepoch;
+ __u32 lli_inode_magic;
+ __u32 lli_flags;
+ __u64 lli_ioepoch;
- cfs_spinlock_t lli_lock;
- struct posix_acl *lli_posix_acl;
+ spinlock_t lli_lock;
+ struct posix_acl *lli_posix_acl;
- cfs_hlist_head_t *lli_remote_perms;
- cfs_mutex_t lli_rmtperm_mutex;
+ struct hlist_head *lli_remote_perms;
+ struct mutex lli_rmtperm_mutex;
/* identifying fields for both metadata and data stacks. */
struct lu_fid lli_fid;
* for allocating OST objects after a mknod() and later open-by-FID. */
struct lu_fid lli_pfid;
- cfs_list_t lli_close_list;
- cfs_list_t lli_oss_capas;
- /* open count currently used by capability only, indicate whether
- * capability needs renewal */
- cfs_atomic_t lli_open_count;
- struct obd_capa *lli_mds_capa;
- cfs_time_t lli_rmtperm_time;
+ struct list_head lli_close_list;
+ struct list_head lli_oss_capas;
+ /* open count currently used by capability only, indicate whether
+ * capability needs renewal */
+ atomic_t lli_open_count;
+ struct obd_capa *lli_mds_capa;
+ cfs_time_t lli_rmtperm_time;
/* handle is to be sent to MDS later on done_writing and setattr.
* Open handle data are needed for the recovery to reconstruct
__u64 lli_open_fd_read_count;
__u64 lli_open_fd_write_count;
__u64 lli_open_fd_exec_count;
- /* Protects access to och pointers and their usage counters, also
- * atomicity of check-update of lli_smd */
- cfs_mutex_t lli_och_mutex;
+ /* Protects access to och pointers and their usage counters */
+ struct mutex lli_och_mutex;
- struct inode lli_vfs_inode;
+ struct inode lli_vfs_inode;
- /* the most recent timestamps obtained from mds */
- struct ost_lvb lli_lvb;
- cfs_spinlock_t lli_agl_lock;
+ /* the most recent timestamps obtained from mds */
+ struct ost_lvb lli_lvb;
+ spinlock_t lli_agl_lock;
- /* Try to make the d::member and f::member are aligned. Before using
- * these members, make clear whether it is directory or not. */
- union {
- /* for directory */
- struct {
- /* serialize normal readdir and statahead-readdir. */
- cfs_mutex_t d_readdir_mutex;
+ /* Try to make the d::member and f::member are aligned. Before using
+ * these members, make clear whether it is directory or not. */
+ union {
+ /* for directory */
+ struct {
+ /* serialize normal readdir and statahead-readdir. */
+ struct mutex d_readdir_mutex;
/* metadata statahead */
/* since parent-child threads can share the same @file
* cleanup the dir readahead. */
void *d_opendir_key;
struct ll_statahead_info *d_sai;
- __u64 d_sa_pos;
- struct posix_acl *d_def_acl;
/* protect statahead stuff. */
- cfs_spinlock_t d_sa_lock;
- /* "opendir_pid" is the token when lookup/revalid
- * -- I am the owner of dir statahead. */
- pid_t d_opendir_pid;
- } d;
+ spinlock_t d_sa_lock;
+ /* "opendir_pid" is the token when lookup/revalid
+ * -- I am the owner of dir statahead. */
+ pid_t d_opendir_pid;
+ /* directory stripe information */
+ struct lmv_stripe_md *d_lsm_md;
+ /* striped directory size */
+ loff_t d_stripe_size;
+ /* striped directory nlink */
+ __u64 d_stripe_nlink;
+ } d;
#define lli_readdir_mutex u.d.d_readdir_mutex
#define lli_opendir_key u.d.d_opendir_key
#define lli_sai u.d.d_sai
-#define lli_sa_pos u.d.d_sa_pos
-#define lli_def_acl u.d.d_def_acl
#define lli_sa_lock u.d.d_sa_lock
#define lli_opendir_pid u.d.d_opendir_pid
-
- /* for non-directory */
- struct {
- cfs_semaphore_t f_size_sem;
- void *f_size_sem_owner;
- char *f_symlink_name;
- __u64 f_maxbytes;
- /*
- * cfs_rw_semaphore_t {
- * signed long count; // align u.d.d_def_acl
- * cfs_spinlock_t wait_lock; // align u.d.d_sa_lock
- * struct list_head wait_list;
- * }
- */
- cfs_rw_semaphore_t f_trunc_sem;
- cfs_mutex_t f_write_mutex;
-
- /* for writepage() only to communicate to fsync */
- int f_async_rc;
- int f_write_rc;
-
- cfs_rw_semaphore_t f_glimpse_sem;
- cfs_time_t f_glimpse_time;
- cfs_list_t f_agl_list;
- __u64 f_agl_index;
- } f;
-
-#define lli_size_sem u.f.f_size_sem
-#define lli_size_sem_owner u.f.f_size_sem_owner
+#define lli_lsm_md u.d.d_lsm_md
+#define lli_stripe_dir_size u.d.d_stripe_size
+#define lli_stripe_dir_nlink u.d.d_stripe_nlink
+
+ /* for non-directory */
+ struct {
+ struct mutex f_size_mutex;
+ char *f_symlink_name;
+ __u64 f_maxbytes;
+ /*
+ * struct rw_semaphore {
+ * signed long count; // align d.d_def_acl
+ * spinlock_t wait_lock; // align d.d_sa_lock
+ * struct list_head wait_list;
+ * }
+ */
+ struct rw_semaphore f_trunc_sem;
+ struct mutex f_write_mutex;
+
+ struct rw_semaphore f_glimpse_sem;
+ cfs_time_t f_glimpse_time;
+ struct list_head f_agl_list;
+ __u64 f_agl_index;
+
+ /* for writepage() only to communicate to fsync */
+ int f_async_rc;
+
+ /*
+ * whenever a process try to read/write the file, the
+ * jobid of the process will be saved here, and it'll
+ * be packed into the write PRC when flush later.
+ *
+ * so the read/write statistics for jobid will not be
+ * accurate if the file is shared by different jobs.
+ */
+ char f_jobid[JOBSTATS_JOBID_SIZE];
+ } f;
+
+#define lli_size_mutex u.f.f_size_mutex
#define lli_symlink_name u.f.f_symlink_name
#define lli_maxbytes u.f.f_maxbytes
#define lli_trunc_sem u.f.f_trunc_sem
#define lli_write_mutex u.f.f_write_mutex
-#define lli_async_rc u.f.f_async_rc
-#define lli_write_rc u.f.f_write_rc
-#define lli_glimpse_sem u.f.f_glimpse_sem
-#define lli_glimpse_time u.f.f_glimpse_time
-#define lli_agl_list u.f.f_agl_list
-#define lli_agl_index u.f.f_agl_index
+#define lli_glimpse_sem u.f.f_glimpse_sem
+#define lli_glimpse_time u.f.f_glimpse_time
+#define lli_agl_list u.f.f_agl_list
+#define lli_agl_index u.f.f_agl_index
+#define lli_async_rc u.f.f_async_rc
+#define lli_jobid u.f.f_jobid
- } u;
+ } u;
/* XXX: For following frequent used members, although they maybe special
* used for non-directory object, it is some time-wasting to check
* In the future, if more members are added only for directory,
* some of the following members can be moved into u.f.
*/
- struct lov_stripe_md *lli_smd;
- struct cl_object *lli_clob;
+ bool lli_has_smd;
+ struct cl_object *lli_clob;
+
+ /* mutex to request for layout lock exclusively. */
+ struct mutex lli_layout_mutex;
+ /* Layout version, protected by lli_layout_lock */
+ __u32 lli_layout_gen;
+ spinlock_t lli_layout_lock;
+
+ struct rw_semaphore lli_xattrs_list_rwsem;
+ struct mutex lli_xattrs_enq_lock;
+ struct list_head lli_xattrs; /* ll_xattr_entry->xe_list */
};
+static inline __u32 ll_layout_version_get(struct ll_inode_info *lli)
+{
+ __u32 gen;
+
+ spin_lock(&lli->lli_layout_lock);
+ gen = lli->lli_layout_gen;
+ spin_unlock(&lli->lli_layout_lock);
+
+ return gen;
+}
+
+static inline void ll_layout_version_set(struct ll_inode_info *lli, __u32 gen)
+{
+ spin_lock(&lli->lli_layout_lock);
+ lli->lli_layout_gen = gen;
+ spin_unlock(&lli->lli_layout_lock);
+}
+
+int ll_xattr_cache_destroy(struct inode *inode);
+
+int ll_xattr_cache_get(struct inode *inode,
+ const char *name,
+ char *buffer,
+ size_t size,
+ __u64 valid);
+
/*
* 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.
+ * consistency between file size and KMS.
*
- * Implemented by ->lli_size_sem and ->lsm_sem, nested in that order.
+ * Implemented by ->lli_size_mutex and ->lsm_lock, 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);
+void ll_inode_size_lock(struct inode *inode);
+void ll_inode_size_unlock(struct inode *inode);
// 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)
/* 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))
+#define SBI_DEFAULT_READAHEAD_MAX (40UL << (20 - PAGE_CACHE_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))
+#define SBI_DEFAULT_READAHEAD_WHOLE_MAX (2UL << (20 - PAGE_CACHE_SHIFT))
enum ra_stat {
RA_STAT_HIT = 0,
RA_STAT_EOF,
RA_STAT_MAX_IN_FLIGHT,
RA_STAT_WRONG_GRAB_PAGE,
- _NR_RA_STAT,
+ RA_STAT_FAILED_REACH_END,
+ _NR_RA_STAT,
};
struct ll_ra_info {
- cfs_atomic_t ra_cur_pages;
- unsigned long ra_max_pages;
- unsigned long ra_max_pages_per_file;
- unsigned long ra_max_read_ahead_whole_pages;
+ atomic_t ra_cur_pages;
+ unsigned long ra_max_pages;
+ unsigned long ra_max_pages_per_file;
+ unsigned long ra_max_read_ahead_whole_pages;
};
/* ra_io_arg will be filled in the beginning of ll_readahead with
#define LL_SBI_32BIT_API 0x2000 /* generate 32 bit inodes. */
#define LL_SBI_64BIT_HASH 0x4000 /* support 64-bits dir hash/offset */
#define LL_SBI_AGL_ENABLED 0x8000 /* enable agl */
+#define LL_SBI_VERBOSE 0x10000 /* verbose mount/umount */
+#define LL_SBI_LAYOUT_LOCK 0x20000 /* layout lock support */
+#define LL_SBI_USER_FID2PATH 0x40000 /* allow fid2path by unprivileged users */
+#define LL_SBI_XATTR_CACHE 0x80000 /* support for xattr cache */
+#define LL_SBI_NOROOTSQUASH 0x100000 /* do not apply root squash */
+
+#define LL_SBI_FLAGS { \
+ "nolck", \
+ "checksum", \
+ "flock", \
+ "xattr", \
+ "acl", \
+ "???", \
+ "rmt_client", \
+ "mds_capa", \
+ "oss_capa", \
+ "flock", \
+ "lru_resize", \
+ "lazy_statfs", \
+ "som", \
+ "32bit_api", \
+ "64bit_hash", \
+ "agl", \
+ "verbose", \
+ "layout", \
+ "user_fid2path",\
+ "xattr", \
+ "norootsquash", \
+}
-/* default value for ll_sb_info->contention_time */
-#define SBI_DEFAULT_CONTENTION_SECONDS 60
-/* default value for lockless_truncate_enable */
-#define SBI_DEFAULT_LOCKLESS_TRUNCATE_ENABLE 1
#define RCE_HASHES 32
struct rmtacl_ctl_entry {
- cfs_list_t rce_list;
+ struct list_head rce_list;
pid_t rce_key; /* hash key */
int rce_ops; /* acl operation type */
};
struct rmtacl_ctl_table {
- cfs_spinlock_t rct_lock;
- cfs_list_t rct_entries[RCE_HASHES];
+ spinlock_t rct_lock;
+ struct list_head rct_entries[RCE_HASHES];
};
#define EE_HASHES 32
struct eacl_entry {
- cfs_list_t ee_list;
+ struct list_head ee_list;
pid_t ee_key; /* hash key */
struct lu_fid ee_fid;
int ee_type; /* ACL type for ACCESS or DEFAULT */
};
struct eacl_table {
- cfs_spinlock_t et_lock;
- cfs_list_t et_entries[EE_HASHES];
+ spinlock_t et_lock;
+ struct list_head et_entries[EE_HASHES];
};
struct ll_sb_info {
- cfs_list_t ll_list;
- /* this protects pglist and ra_info. It isn't safe to
- * grab from interrupt contexts */
- cfs_spinlock_t ll_lock;
- cfs_spinlock_t ll_pp_extent_lock; /* Lock for pp_extent entries */
- cfs_spinlock_t ll_process_lock; /* Lock for ll_rw_process_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;
+ spinlock_t ll_pp_extent_lock; /* pp_extent entry*/
+ spinlock_t ll_process_lock; /* ll_rw_process_info */
struct obd_uuid ll_sb_uuid;
struct obd_export *ll_md_exp;
struct obd_export *ll_dt_exp;
struct lu_fid ll_root_fid; /* root object fid */
int ll_flags;
- cfs_list_t ll_conn_chain; /* per-conn chain of SBs */
+ unsigned int ll_umounting:1,
+ ll_xattr_cache_enabled:1;
+ /* per-conn chain of SBs */
+ struct list_head ll_conn_chain;
struct lustre_client_ocd ll_lco;
- cfs_list_t ll_orphan_dentry_list; /*please don't ask -p*/
+ /*please don't ask -p*/
+ struct list_head ll_orphan_dentry_list;
struct ll_close_queue *ll_lcq;
struct lprocfs_stats *ll_stats; /* lprocfs stats counter */
- unsigned long ll_async_page_max;
- unsigned long ll_async_page_count;
+ /* Used to track "unstable" pages on a client, and maintain a
+ * LRU list of clean pages. An "unstable" page is defined as
+ * any page which is sent to a server as part of a bulk request,
+ * but is uncommitted to stable storage. */
+ struct cl_client_cache ll_cache;
struct lprocfs_stats *ll_ra_stats;
/* =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;
- unsigned int ll_md_brw_size; /* used by readdir */
+ unsigned int ll_md_brw_pages; /* readdir pages per RPC */
struct lu_site *ll_site;
struct cl_device *ll_cl;
enum stats_track_type ll_stats_track_type;
int ll_rw_stats_on;
- /* metadata stat-ahead */
- unsigned int ll_sa_max; /* max statahead RPCs */
- atomic_t ll_sa_total; /* statahead thread started
- * count */
- atomic_t ll_sa_wrong; /* statahead thread stopped for
- * low hit ratio */
- atomic_t ll_agl_total; /* AGL thread started count */
-
- dev_t ll_sdev_orig; /* save s_dev before assign for
- * clustred nfs */
- struct rmtacl_ctl_table ll_rct;
- struct eacl_table ll_et;
- struct vfsmount *ll_mnt;
+ /* metadata stat-ahead */
+ unsigned int ll_sa_max; /* max statahead RPCs */
+ atomic_t ll_sa_total; /* statahead thread started
+ * count */
+ atomic_t ll_sa_wrong; /* statahead thread stopped for
+ * low hit ratio */
+ atomic_t ll_agl_total; /* AGL thread started count */
+
+ dev_t ll_sdev_orig; /* save s_dev before assign for
+ * clustred nfs */
+ struct rmtacl_ctl_table ll_rct;
+ struct eacl_table ll_et;
+
+ /* root squash */
+ struct root_squash_info ll_squash;
};
#define LL_DEFAULT_MAX_RW_CHUNK (32 * 1024 * 1024)
pgoff_t lrr_start;
pgoff_t lrr_count;
struct task_struct *lrr_reader;
- cfs_list_t lrr_linkage;
+ struct list_head lrr_linkage;
};
/*
* per file-descriptor read-ahead data.
*/
struct ll_readahead_state {
- cfs_spinlock_t ras_lock;
+ spinlock_t ras_lock;
/*
* index of the last page that read(2) needed and that wasn't in the
* cache. Used by ras_update() to detect seeks.
* progress against this file descriptor. Used by read-ahead code,
* protected by ->ras_lock.
*/
- cfs_list_t ras_read_beads;
+ struct list_head ras_read_beads;
/*
* The following 3 items are used for detecting the stride I/O
* mode.
unsigned long ras_consecutive_stride_requests;
};
-struct ll_file_dir {
- __u64 lfd_pos;
- __u64 lfd_next;
-};
-
-extern cfs_mem_cache_t *ll_file_data_slab;
+extern struct kmem_cache *ll_file_data_slab;
struct lustre_handle;
struct ll_file_data {
- struct ll_readahead_state fd_ras;
- int fd_omode;
- struct ccc_grouplock fd_grouplock;
- struct ll_file_dir fd_dir;
- __u32 fd_flags;
- struct file *fd_file;
+ struct ll_readahead_state fd_ras;
+ struct ccc_grouplock fd_grouplock;
+ __u64 lfd_pos;
+ __u32 fd_flags;
+ fmode_t fd_omode;
+ /* openhandle if lease exists for this file.
+ * Borrow lli->lli_och_mutex to protect assignment */
+ struct obd_client_handle *fd_lease_och;
+ struct obd_client_handle *fd_och;
+ struct file *fd_file;
+ /* Indicate whether need to report failure when close.
+ * true: failure is known, not report again.
+ * false: unknown failure, should report. */
+ bool fd_write_failed;
};
struct lov_stripe_md;
-extern cfs_spinlock_t inode_lock;
+extern spinlock_t inode_lock;
extern struct proc_dir_entry *proc_lustre_fs_root;
return &lli->lli_vfs_inode;
}
-struct it_cb_data {
- struct inode *icbd_parent;
- struct dentry **icbd_childp;
- obd_id hash;
-};
-
__u32 ll_i2suppgid(struct inode *i);
void ll_i2gids(__u32 *suppgids, struct inode *i1,struct inode *i2);
static inline int ll_need_32bit_api(struct ll_sb_info *sbi)
{
#if BITS_PER_LONG == 32
- return 1;
+ return 1;
+#elif defined(CONFIG_COMPAT)
+ return unlikely(is_compat_task() || (sbi->ll_flags & LL_SBI_32BIT_API));
#else
- return unlikely(cfs_curproc_is_32bit() || (sbi->ll_flags & LL_SBI_32BIT_API));
+ return unlikely(sbi->ll_flags & LL_SBI_32BIT_API);
#endif
}
-#define LLAP_MAGIC 98764321
-
-extern cfs_mem_cache_t *ll_async_page_slab;
-extern size_t ll_async_page_slab_size;
-
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);
struct super_block *sb, char *osc, char *mdc);
void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi);
void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count);
-void lprocfs_llite_init_vars(struct lprocfs_static_vars *lvars);
+extern struct lprocfs_seq_vars lprocfs_llite_obd_vars[];
#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_stats_ops_tally(struct ll_sb_info *sbi, int op, int count) {}
-static void lprocfs_llite_init_vars(struct lprocfs_static_vars *lvars)
-{
- memset(lvars, 0, sizeof(*lvars));
-}
#endif
/* llite/dir.c */
-void ll_release_page(struct page *page, int remove);
-extern struct file_operations ll_dir_operations;
-extern struct inode_operations ll_dir_inode_operations;
-struct page *ll_get_dir_page(struct file *filp, struct inode *dir, __u64 hash,
- struct ll_dir_chain *chain);
-int ll_readdir(struct file *filp, void *cookie, filldir_t filldir);
-
+extern const struct file_operations ll_dir_operations;
+extern const struct inode_operations ll_dir_inode_operations;
+#ifdef HAVE_DIR_CONTEXT
+int ll_dir_read(struct inode *inode, struct md_op_data *op_data,
+ struct dir_context *ctx);
+#else
+int ll_dir_read(struct inode *inode, struct md_op_data *op_data,
+ void *cookie, filldir_t filldir);
+#endif
int ll_get_mdt_idx(struct inode *inode);
+int ll_get_mdt_idx_by_fid(struct ll_sb_info *sbi, const struct lu_fid *fid);
+
+struct lu_dirent *ll_dir_entry_start(struct inode *dir,
+ struct md_op_data *op_data,
+ struct page **ppage);
+
+struct lu_dirent *ll_dir_entry_next(struct inode *dir,
+ struct md_op_data *op_data,
+ struct lu_dirent *ent,
+ struct page **ppage);
/* llite/namei.c */
+extern const struct inode_operations ll_special_inode_operations;
+
int ll_objects_destroy(struct ptlrpc_request *request,
struct inode *dir);
struct inode *ll_iget(struct super_block *sb, ino_t hash,
struct lustre_md *lic);
+int ll_test_inode_by_fid(struct inode *inode, void *opaque);
int ll_md_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
void *data, int flag);
-struct lookup_intent *ll_convert_intent(struct open_intent *oit,
- int lookup_flags);
-int ll_lookup_it_finish(struct ptlrpc_request *request,
- struct lookup_intent *it, void *data);
-struct dentry *ll_find_alias(struct inode *inode, struct dentry *de);
+struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de);
+int ll_rmdir_entry(struct inode *dir, char *name, int namelen);
+void ll_update_times(struct ptlrpc_request *request, struct inode *inode);
/* 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, struct writeback_control *wbc);
-void ll_removepage(struct page *page);
+int ll_writepages(struct address_space *, struct writeback_control *wbc);
int ll_readpage(struct file *file, struct page *page);
void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras);
-void ll_truncate(struct inode *inode);
-int ll_file_punch(struct inode *, loff_t, int);
-ssize_t ll_file_lockless_io(struct file *, char *, size_t, loff_t *, int);
-void ll_clear_file_contended(struct inode*);
-int ll_sync_page_range(struct inode *, struct address_space *, loff_t, size_t);
int ll_readahead(const struct lu_env *env, struct cl_io *io,
- struct ll_readahead_state *ras, struct address_space *mapping,
- struct cl_page_list *queue, int flags);
+ struct cl_page_list *queue, struct ll_readahead_state *ras,
+ bool hit);
+int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io);
+struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage);
+void ll_cl_fini(struct ll_cl_context *lcc);
+
+#ifndef MS_HAS_NEW_AOPS
+extern const struct address_space_operations ll_aops;
+#else
+extern const struct address_space_operations_ext ll_aops;
+#endif
/* llite/file.c */
extern struct file_operations ll_file_operations;
extern struct file_operations ll_file_operations_flock;
extern struct file_operations ll_file_operations_noflock;
extern struct inode_operations ll_file_inode_operations;
-extern int ll_inode_revalidate_it(struct dentry *, struct lookup_intent *,
- __u64);
extern int ll_have_md_lock(struct inode *inode, __u64 *bits,
ldlm_mode_t l_req_mode);
extern ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits,
- struct lustre_handle *lockh);
-int __ll_inode_revalidate_it(struct dentry *, struct lookup_intent *,
- __u64 bits);
-int ll_revalidate_nd(struct dentry *dentry, struct nameidata *nd);
+ struct lustre_handle *lockh, __u64 flags,
+ ldlm_mode_t mode);
+
int ll_file_open(struct inode *inode, struct file *file);
int ll_file_release(struct inode *inode, struct file *file);
int ll_glimpse_ioctl(struct ll_sb_info *sbi,
struct lov_stripe_md *lsm, lstat_t *st);
void ll_ioepoch_open(struct ll_inode_info *lli, __u64 ioepoch);
-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_md_close(struct obd_export *md_exp, struct inode *inode,
- struct file *file);
-int ll_md_real_close(struct inode *inode, int flags);
+int ll_md_real_close(struct inode *inode, fmode_t fmode);
void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data,
struct obd_client_handle **och, unsigned long flags);
void ll_done_writing_attr(struct inode *inode, struct md_op_data *op_data);
int ll_som_update(struct inode *inode, struct md_op_data *op_data);
int ll_inode_getattr(struct inode *inode, struct obdo *obdo,
__u64 ioepoch, int sync);
-int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data,
- struct md_open_data **mod);
void ll_pack_inode2opdata(struct inode *inode, struct md_op_data *op_data,
struct lustre_handle *fh);
extern void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
struct ll_file_data *file, loff_t pos,
size_t count, int rw);
-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);
-struct ll_file_data *ll_file_data_get(void);
+struct posix_acl *ll_get_acl(struct inode *inode, int type);
+int ll_migrate(struct inode *parent, struct file *file, int mdtidx,
+ const char *name, int namelen);
+int ll_get_fid_by_name(struct inode *parent, const char *name,
+ int namelen, struct lu_fid *fid);
#ifdef HAVE_GENERIC_PERMISSION_4ARGS
int ll_inode_permission(struct inode *inode, int mask, unsigned int flags);
#else
int ll_inode_permission(struct inode *inode, int mask);
# endif
#endif
+
int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file,
- int flags, struct lov_user_md *lum,
- int lum_size);
+ __u64 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 set_default);
-int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmm,
- int *lmm_size, struct ptlrpc_request **request);
+int ll_dir_getstripe(struct inode *inode, void **lmmp,
+ int *lmm_size, struct ptlrpc_request **request,
+ obd_valid valid);
#ifdef HAVE_FILE_FSYNC_4ARGS
int ll_fsync(struct file *file, loff_t start, loff_t end, int data);
#elif defined(HAVE_FILE_FSYNC_2ARGS)
#else
int ll_fsync(struct file *file, struct dentry *dentry, int data);
#endif
-int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
- int num_bytes);
-int ll_merge_lvb(struct inode *inode);
-int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg);
-int ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg);
-int ll_fid2path(struct obd_export *exp, void *arg);
+int ll_merge_lvb(const struct lu_env *env, struct inode *inode);
+int ll_fid2path(struct inode *inode, void *arg);
+int ll_data_version(struct inode *inode, __u64 *data_version, int flags);
+int ll_hsm_release(struct inode *inode);
/* llite/dcache.c */
-int ll_dops_init(struct dentry *de, int block, int init_sa);
-extern cfs_spinlock_t ll_lookup_lock;
-extern struct dentry_operations ll_d_ops;
+
+int ll_d_init(struct dentry *de);
+extern const struct dentry_operations ll_d_ops;
void ll_intent_drop_lock(struct lookup_intent *);
void ll_intent_release(struct lookup_intent *);
-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_invalidate_aliases(struct inode *);
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 ll_revalidate_it_finish(struct ptlrpc_request *request,
struct lookup_intent *it, struct dentry *de);
/* llite/llite_lib.c */
extern struct super_operations lustre_super_operations;
-char *ll_read_opt(const char *opt, char *data);
void ll_lli_init(struct ll_inode_info *lli);
int ll_fill_super(struct super_block *sb, struct vfsmount *mnt);
void ll_put_super(struct super_block *sb);
void ll_kill_super(struct super_block *sb);
-struct inode *ll_inode_from_lock(struct ldlm_lock *lock);
+struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock);
void ll_clear_inode(struct inode *inode);
-int ll_setattr_raw(struct dentry *dentry, struct iattr *attr);
+int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import);
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,
__u64 max_age, __u32 flags);
-void ll_update_inode(struct inode *inode, struct lustre_md *md);
-void ll_read_inode2(struct inode *inode, void *opaque);
+int ll_update_inode(struct inode *inode, struct lustre_md *md);
+int ll_read_inode2(struct inode *inode, void *opaque);
void ll_delete_inode(struct inode *inode);
int ll_iocontrol(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg);
int ll_flush_ctx(struct inode *inode);
-#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);
+#ifdef HAVE_SUPEROPS_USE_DENTRY
+int ll_show_options(struct seq_file *seq, struct dentry *dentry);
+#else
int ll_show_options(struct seq_file *seq, struct vfsmount *vfs);
+#endif
+void ll_dirty_page_discard_warn(struct page *page, int ioret);
int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
- struct super_block *);
+ struct super_block *, struct lookup_intent *);
void lustre_dump_dentry(struct dentry *, int recur);
-void lustre_dump_inode(struct inode *);
int ll_obd_statfs(struct inode *inode, void *arg);
int ll_get_max_mdsize(struct ll_sb_info *sbi, int *max_mdsize);
+int ll_get_default_mdsize(struct ll_sb_info *sbi, int *default_mdsize);
+int ll_get_max_cookiesize(struct ll_sb_info *sbi, int *max_cookiesize);
+int ll_get_default_cookiesize(struct ll_sb_info *sbi, int *default_cookiesize);
int ll_process_config(struct lustre_cfg *lcfg);
struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data,
struct inode *i1, struct inode *i2,
int mode, __u32 opc, void *data);
void ll_finish_md_op_data(struct md_op_data *op_data);
int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg);
+char *ll_get_fsname(struct super_block *sb, char *buf, int buflen);
+void ll_compute_rootsquash_state(struct ll_sb_info *sbi);
/* llite/llite_nfs.c */
extern struct export_operations lustre_export_operations;
__u32 get_uuid2int(const char *name, int len);
-
-/* 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;
+struct inode *search_inode_for_lustre(struct super_block *sb,
+ const struct lu_fid *fid);
+int ll_dir_get_parent_fid(struct inode *dir, struct lu_fid *parent_fid);
/* llite/symlink.c */
extern struct inode_operations ll_fast_symlink_inode_operations;
/* llite/llite_close.c */
struct ll_close_queue {
- cfs_spinlock_t lcq_lock;
- cfs_list_t lcq_head;
- cfs_waitq_t lcq_waitq;
- cfs_completion_t lcq_comp;
- cfs_atomic_t lcq_stop;
+ spinlock_t lcq_lock;
+ struct list_head lcq_head;
+ wait_queue_head_t lcq_waitq;
+ struct completion lcq_comp;
+ atomic_t lcq_stop;
};
struct ccc_object *cl_inode2ccc(struct inode *inode);
enum vvp_io_subtype {
/** normal IO */
IO_NORMAL,
- /** io called from .sendfile */
- IO_SENDFILE,
/** io started from splice_{read|write} */
IO_SPLICE
};
union {
struct {
- read_actor_t cui_actor;
- void *cui_target;
- } sendfile;
- struct {
struct pipe_inode_info *cui_pipe;
unsigned int cui_flags;
} splice;
/**
* locked page returned from vvp_io
*/
- cfs_page_t *ft_vmpage;
-#ifndef HAVE_VM_OP_FAULT
- struct vm_nopage_api {
- /**
- * Virtual address at which fault occurred.
- */
- unsigned long ft_address;
- /**
- * Fault type, as to be supplied to
- * filemap_nopage().
- */
- int *ft_type;
- } nopage;
-#else
+ struct page *ft_vmpage;
struct vm_fault_api {
/**
* kernel fault info
*/
unsigned int ft_flags;
} fault;
-#endif
} fault;
} u;
/**
* Set when cui_bead has been initialized.
*/
int cui_ra_window_set;
- /**
- * Partially truncated page, that vvp_io_trunc_start() keeps locked
- * across truncate.
- */
- struct cl_page *cui_partpage;
};
/**
union {
struct {
-#ifndef HAVE_FILE_WRITEV
struct kiocb *via_iocb;
-#endif
struct iovec *via_iov;
unsigned long via_nrsegs;
} normal;
struct {
- read_actor_t via_actor;
- void *via_target;
- } sendfile;
- struct {
struct pipe_inode_info *via_pipe;
unsigned int via_flags;
} splice;
struct cl_page *lcc_page;
struct lu_env *lcc_env;
int lcc_refcheck;
- int lcc_created;
};
struct vvp_thread_info {
- struct ost_lvb vti_lvb;
- struct cl_2queue vti_queue;
struct iovec vti_local_iov;
struct vvp_io_args vti_args;
struct ra_io_arg vti_ria;
return &vvp_env_session(env)->vs_ios;
}
+int vvp_global_init(void);
+void vvp_global_fini(void);
+
void ll_queue_done_writing(struct inode *inode, unsigned long flags);
void ll_close_thread_shutdown(struct ll_close_queue *lcq);
int ll_close_thread_start(struct ll_close_queue **lcq_ret);
/* llite/llite_mmap.c */
-typedef struct rb_root rb_root_t;
-typedef struct rb_node rb_node_t;
-
-struct ll_lock_tree_node;
-struct ll_lock_tree {
- rb_root_t lt_root;
- cfs_list_t lt_locked_list;
- struct ll_file_data *lt_fd;
-};
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);
void policy_from_vma(ldlm_policy_data_t *policy,
struct vm_area_struct *vma, unsigned long addr, size_t count);
-struct vm_area_struct *our_vma(unsigned long addr, size_t count);
+struct vm_area_struct *our_vma(struct mm_struct *mm, unsigned long addr,
+ size_t count);
static inline void ll_invalidate_page(struct page *vmpage)
{
- struct address_space *mapping = vmpage->mapping;
- loff_t offset = vmpage->index << PAGE_CACHE_SHIFT;
-
- LASSERT(PageLocked(vmpage));
- if (mapping == NULL)
- return;
-
- ll_teardown_mmaps(mapping, offset, offset + CFS_PAGE_SIZE);
- truncate_complete_page(mapping, vmpage);
+ struct address_space *mapping = vmpage->mapping;
+ loff_t offset = vmpage->index << PAGE_CACHE_SHIFT;
+
+ LASSERT(PageLocked(vmpage));
+ if (mapping == NULL)
+ return;
+
+ /*
+ * truncate_complete_page() calls
+ * a_ops->invalidatepage()->cl_page_delete()->vvp_page_delete().
+ */
+ ll_teardown_mmaps(mapping, offset, offset + PAGE_CACHE_SIZE);
+ truncate_complete_page(mapping, vmpage);
}
#define ll_s2sbi(sb) (s2lsi(sb)->lsi_llsbi)
static inline struct lu_fid *ll_inode2fid(struct inode *inode)
{
struct lu_fid *fid;
+
LASSERT(inode != NULL);
fid = &ll_i2info(inode)->lli_fid;
- LASSERT(fid_is_igif(fid) || fid_ver(fid) == 0);
- return fid;
-}
-static inline int ll_mds_max_easize(struct super_block *sb)
-{
- return sbi2mdc(ll_s2sbi(sb))->cl_max_mds_easize;
+ return fid;
}
static inline __u64 ll_file_maxbytes(struct inode *inode)
int ll_removexattr(struct dentry *dentry, const char *name);
/* llite/remote_perm.c */
-extern cfs_mem_cache_t *ll_remote_perm_cachep;
-extern cfs_mem_cache_t *ll_rmtperm_hash_cachep;
+extern struct kmem_cache *ll_remote_perm_cachep;
+extern struct kmem_cache *ll_rmtperm_hash_cachep;
-cfs_hlist_head_t *alloc_rmtperm_hash(void);
-void free_rmtperm_hash(cfs_hlist_head_t *hash);
+void free_rmtperm_hash(struct hlist_head *hash);
int ll_update_remote_perm(struct inode *inode, struct mdt_remote_perm *perm);
int lustre_check_remote_perm(struct inode *inode, int mask);
/* llite/llite_capa.c */
-extern cfs_timer_t ll_capa_timer;
+extern struct timer_list ll_capa_timer;
int ll_capa_thread_start(void);
void ll_capa_thread_stop(void);
void ll_capa_timer_callback(unsigned long unused);
struct obd_capa *ll_add_capa(struct inode *inode, struct obd_capa *ocapa);
-int ll_update_capa(struct obd_capa *ocapa, struct lustre_capa *capa);
void ll_capa_open(struct inode *inode);
void ll_capa_close(struct inode *inode);
*/
int cl_sb_init(struct super_block *sb);
int cl_sb_fini(struct super_block *sb);
-enum cl_lock_mode vvp_mode_from_vma(struct vm_area_struct *vma);
-void ll_io_init(struct cl_io *io, const struct file *file, int write);
void ras_update(struct ll_sb_info *sbi, struct inode *inode,
struct ll_readahead_state *ras, unsigned long index,
unsigned hit);
void ll_ra_count_put(struct ll_sb_info *sbi, unsigned long len);
-int ll_is_file_contended(struct file *file);
-void ll_ra_stats_inc(struct address_space *mapping, enum ra_stat which);
+void ll_ra_stats_inc(struct inode *inode, enum ra_stat which);
/* llite/llite_rmtacl.c */
#ifdef CONFIG_FS_POSIX_ACL
/* per inode struct, for dir only */
struct ll_statahead_info {
- struct inode *sai_inode;
- cfs_atomic_t sai_refcount; /* when access this struct, hold
- * refcount */
- unsigned int sai_generation; /* generation for statahead */
- unsigned int sai_max; /* max ahead of lookup */
- __u64 sai_sent; /* stat requests sent count */
- __u64 sai_replied; /* stat requests which received
- * reply */
- __u64 sai_index; /* index of statahead entry */
- __u64 sai_index_wait; /* index of entry which is the
- * caller is waiting for */
- __u64 sai_hit; /* hit count */
- __u64 sai_miss; /* miss count:
- * for "ls -al" case, it includes
- * hidden dentry miss;
- * for "ls -l" case, it does not
- * include hidden dentry miss.
- * "sai_miss_hidden" is used for
- * the later case.
- */
+ struct inode *sai_inode;
+ atomic_t sai_refcount; /* when access this struct, hold
+ * refcount */
+ unsigned int sai_generation; /* generation for statahead */
+ unsigned int sai_max; /* max ahead of lookup */
+ __u64 sai_sent; /* stat requests sent count */
+ __u64 sai_replied; /* stat requests which received
+ * reply */
+ __u64 sai_index; /* index of statahead entry */
+ __u64 sai_index_wait; /* index of entry which is the
+ * caller is waiting for */
+ __u64 sai_hit; /* hit count */
+ __u64 sai_miss; /* miss count:
+ * for "ls -al" case, it
+ * includes hidden dentry miss;
+ * for "ls -l" case, it does not
+ * include hidden dentry miss.
+ * "sai_miss_hidden" is used for
+ * the later case.
+ */
unsigned int sai_consecutive_miss; /* consecutive miss */
unsigned int sai_miss_hidden;/* "ls -al", but first dentry
* is not a hidden one */
unsigned int sai_skip_hidden;/* skipped hidden dentry count */
- unsigned int sai_ls_all:1, /* "ls -al", do stat-ahead for
- * hidden entries */
- sai_in_readpage:1,/* statahead is in readdir()*/
- sai_agl_valid:1;/* AGL is valid for the dir */
- cfs_waitq_t sai_waitq; /* stat-ahead wait queue */
- struct ptlrpc_thread sai_thread; /* stat-ahead thread */
- struct ptlrpc_thread sai_agl_thread; /* AGL thread */
- cfs_list_t sai_entries_sent; /* entries sent out */
- cfs_list_t sai_entries_received; /* entries returned */
- cfs_list_t sai_entries_stated; /* entries stated */
- cfs_list_t sai_entries_agl; /* AGL entries to be sent */
- cfs_list_t sai_cache[LL_SA_CACHE_SIZE];
- cfs_spinlock_t sai_cache_lock[LL_SA_CACHE_SIZE];
- cfs_atomic_t sai_cache_count; /* entry count in cache */
+ unsigned int sai_ls_all:1, /* "ls -al", do stat-ahead for
+ * hidden entries */
+ sai_agl_valid:1;/* AGL is valid for the dir */
+ wait_queue_head_t sai_waitq; /* stat-ahead wait queue */
+ struct ptlrpc_thread sai_thread; /* stat-ahead thread */
+ struct ptlrpc_thread sai_agl_thread; /* AGL thread */
+ struct list_head sai_entries; /* entry list */
+ struct list_head sai_entries_received; /* entries returned */
+ struct list_head sai_entries_stated; /* entries stated */
+ struct list_head sai_entries_agl; /* AGL entries to be sent */
+ struct list_head sai_cache[LL_SA_CACHE_SIZE];
+ spinlock_t sai_cache_lock[LL_SA_CACHE_SIZE];
+ atomic_t sai_cache_count; /* entry count in cache */
};
int do_statahead_enter(struct inode *dir, struct dentry **dentry,
static inline int ll_glimpse_size(struct inode *inode)
{
- struct ll_inode_info *lli = ll_i2info(inode);
- int rc;
-
- cfs_down_read(&lli->lli_glimpse_sem);
- rc = cl_glimpse_size(inode);
- lli->lli_glimpse_time = cfs_time_current();
- cfs_up_read(&lli->lli_glimpse_sem);
- return rc;
+ struct ll_inode_info *lli = ll_i2info(inode);
+ int rc;
+
+ down_read(&lli->lli_glimpse_sem);
+ rc = cl_glimpse_size(inode);
+ lli->lli_glimpse_time = cfs_time_current();
+ up_read(&lli->lli_glimpse_sem);
+ return rc;
}
static inline void
ll_statahead_mark(struct inode *dir, struct dentry *dentry)
{
- struct ll_inode_info *lli = ll_i2info(dir);
- struct ll_statahead_info *sai = lli->lli_sai;
- struct ll_dentry_data *ldd = ll_d2d(dentry);
+ struct ll_inode_info *lli = ll_i2info(dir);
+ struct ll_statahead_info *sai = lli->lli_sai;
+ struct ll_dentry_data *ldd = ll_d2d(dentry);
- /* not the same process, don't mark */
- if (lli->lli_opendir_pid != cfs_curproc_pid())
- return;
+ /* not the same process, don't mark */
+ if (lli->lli_opendir_pid != current_pid())
+ return;
- if (sai != NULL && ldd != NULL)
- ldd->lld_sa_generation = sai->sai_generation;
+ LASSERT(ldd != NULL);
+ if (sai != NULL)
+ ldd->lld_sa_generation = sai->sai_generation;
}
static inline int
-ll_statahead_enter(struct inode *dir, struct dentry **dentryp, int only_unplug)
+d_need_statahead(struct inode *dir, struct dentry *dentryp)
{
- struct ll_inode_info *lli;
- struct ll_dentry_data *ldd;
-
- if (ll_i2sbi(dir)->ll_sa_max == 0)
- return -ENOTSUPP;
+ struct ll_inode_info *lli;
+ struct ll_dentry_data *ldd;
+
+ if (ll_i2sbi(dir)->ll_sa_max == 0)
+ return -EAGAIN;
+
+ lli = ll_i2info(dir);
+ /* not the same process, don't statahead */
+ if (lli->lli_opendir_pid != current_pid())
+ return -EAGAIN;
+
+ /* statahead has been stopped */
+ if (lli->lli_opendir_key == NULL)
+ return -EAGAIN;
+
+ ldd = ll_d2d(dentryp);
+ /*
+ * When stats a dentry, the system trigger more than once "revalidate"
+ * or "lookup", for "getattr", for "getxattr", and maybe for others.
+ * Under patchless client mode, the operation intent is not accurate,
+ * which maybe misguide the statahead thread. For example:
+ * The "revalidate" call for "getattr" and "getxattr" of a dentry maybe
+ * have the same operation intent -- "IT_GETATTR".
+ * In fact, one dentry should has only one chance to interact with the
+ * statahead thread, otherwise the statahead windows will be confused.
+ * The solution is as following:
+ * Assign "lld_sa_generation" with "sai_generation" when a dentry
+ * "IT_GETATTR" for the first time, and the subsequent "IT_GETATTR"
+ * will bypass interacting with statahead thread for checking:
+ * "lld_sa_generation == lli_sai->sai_generation"
+ */
+ if (ldd && lli->lli_sai &&
+ ldd->lld_sa_generation == lli->lli_sai->sai_generation)
+ return -EAGAIN;
+
+ return 1;
+}
- lli = ll_i2info(dir);
- /* not the same process, don't statahead */
- if (lli->lli_opendir_pid != cfs_curproc_pid())
- return -EAGAIN;
+static inline int
+ll_statahead_enter(struct inode *dir, struct dentry **dentryp, int only_unplug)
+{
+ int ret;
- ldd = ll_d2d(*dentryp);
- /*
- * When stats a dentry, the system trigger more than once "revalidate"
- * or "lookup", for "getattr", for "getxattr", and maybe for others.
- * Under patchless client mode, the operation intent is not accurate,
- * which maybe misguide the statahead thread. For example:
- * The "revalidate" call for "getattr" and "getxattr" of a dentry maybe
- * have the same operation intent -- "IT_GETATTR".
- * In fact, one dentry should has only one chance to interact with the
- * statahead thread, otherwise the statahead windows will be confused.
- * The solution is as following:
- * Assign "lld_sa_generation" with "sai_generation" when a dentry
- * "IT_GETATTR" for the first time, and the subsequent "IT_GETATTR"
- * will bypass interacting with statahead thread for checking:
- * "lld_sa_generation == lli_sai->sai_generation"
- */
- if (ldd && lli->lli_sai &&
- ldd->lld_sa_generation == lli->lli_sai->sai_generation)
- return -EAGAIN;
+ ret = d_need_statahead(dir, *dentryp);
+ if (ret <= 0)
+ return ret;
- return do_statahead_enter(dir, dentryp, only_unplug);
+ return do_statahead_enter(dir, dentryp, only_unplug);
}
/* llite ioctl register support rountine */
struct file *file, unsigned int cmd, unsigned long arg,
void *magic, int *rcp);
-enum llioc_iter ll_iocontrol_call(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg, int *rcp);
-
/* export functions */
/* Register ioctl block dynamatically for a regular file.
*
return LUSTRE_FPRIVATE(attr->ia_file);
}
-static inline void cl_isize_lock(struct inode *inode, int lsmlock)
+static inline void cl_isize_lock(struct inode *inode)
{
- ll_inode_size_lock(inode, lsmlock);
+ ll_inode_size_lock(inode);
}
-static inline void cl_isize_unlock(struct inode *inode, int lsmlock)
+static inline void cl_isize_unlock(struct inode *inode)
{
- ll_inode_size_unlock(inode, lsmlock);
+ ll_inode_size_unlock(inode);
}
static inline void cl_isize_write_nolock(struct inode *inode, loff_t kms)
{
- LASSERT_SEM_LOCKED(&ll_i2info(inode)->lli_size_sem);
- i_size_write(inode, kms);
+ LASSERT(mutex_is_locked(&ll_i2info(inode)->lli_size_mutex));
+ i_size_write(inode, kms);
}
static inline void cl_isize_write(struct inode *inode, loff_t kms)
{
- ll_inode_size_lock(inode, 0);
- i_size_write(inode, kms);
- ll_inode_size_unlock(inode, 0);
+ ll_inode_size_lock(inode);
+ i_size_write(inode, kms);
+ ll_inode_size_unlock(inode);
}
#define cl_isize_read(inode) i_size_read(inode)
-static inline int cl_merge_lvb(struct inode *inode)
+static inline int cl_merge_lvb(const struct lu_env *env, struct inode *inode)
{
- return ll_merge_lvb(inode);
+ return ll_merge_lvb(env, inode);
}
#define cl_inode_atime(inode) LTIME_S((inode)->i_atime)
struct obd_capa *cl_capa_lookup(struct inode *inode, enum cl_req_type crt);
+int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end,
+ enum cl_fsync_mode mode, int ignore_layout);
+
/** direct write pages */
struct ll_dio_pages {
/** page array to be written. we don't support
static inline void ll_set_lock_data(struct obd_export *exp, struct inode *inode,
struct lookup_intent *it, __u64 *bits)
{
- if (!it->d.lustre.it_lock_set) {
- CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u)\n",
- inode, inode->i_ino, inode->i_generation);
- md_set_lock_data(exp, &it->d.lustre.it_lock_handle,
- inode, &it->d.lustre.it_lock_bits);
- it->d.lustre.it_lock_set = 1;
- }
-
- if (bits != NULL)
- *bits = it->d.lustre.it_lock_bits;
+ if (!it->d.lustre.it_lock_set) {
+ struct lustre_handle handle;
+
+ /* If this inode is a remote object, it will get two
+ * separate locks in different namespaces, Master MDT,
+ * where the name entry is, will grant LOOKUP lock,
+ * remote MDT, where the object is, will grant
+ * UPDATE|PERM lock. The inode will be attched to both
+ * LOOKUP and PERM locks, so revoking either locks will
+ * case the dcache being cleared */
+ if (it->d.lustre.it_remote_lock_mode) {
+ handle.cookie = it->d.lustre.it_remote_lock_handle;
+ CDEBUG(D_DLMTRACE, "setting l_data to inode "DFID
+ "(%p) for remote lock "LPX64"\n",
+ PFID(ll_inode2fid(inode)), inode,
+ handle.cookie);
+ md_set_lock_data(exp, &handle.cookie, inode, NULL);
+ }
+
+ handle.cookie = it->d.lustre.it_lock_handle;
+
+ CDEBUG(D_DLMTRACE, "setting l_data to inode "DFID"(%p)"
+ " for lock "LPX64"\n",
+ PFID(ll_inode2fid(inode)), inode, handle.cookie);
+
+ md_set_lock_data(exp, &handle.cookie, inode,
+ &it->d.lustre.it_lock_bits);
+ it->d.lustre.it_lock_set = 1;
+ }
+
+ if (bits != NULL)
+ *bits = it->d.lustre.it_lock_bits;
+}
+
+static inline void ll_lock_dcache(struct inode *inode)
+{
+#ifdef HAVE_DCACHE_LOCK
+ spin_lock(&dcache_lock);
+#else
+ spin_lock(&inode->i_lock);
+#endif
+}
+
+static inline void ll_unlock_dcache(struct inode *inode)
+{
+#ifdef HAVE_DCACHE_LOCK
+ spin_unlock(&dcache_lock);
+#else
+ spin_unlock(&inode->i_lock);
+#endif
+}
+
+static inline int d_lustre_invalid(const struct dentry *dentry)
+{
+ struct ll_dentry_data *lld = ll_d2d(dentry);
+
+ return (lld == NULL) || lld->lld_invalid;
+}
+
+static inline void __d_lustre_invalidate(struct dentry *dentry)
+{
+ struct ll_dentry_data *lld = ll_d2d(dentry);
+
+ if (lld != NULL)
+ lld->lld_invalid = 1;
}
-static inline void ll_dentry_rehash(struct dentry *dentry, int locked)
+/*
+ * Mark dentry INVALID, if dentry refcount is zero (this is normally case for
+ * ll_md_blocking_ast), unhash this dentry, and let dcache to reclaim it later;
+ * else dput() of the last refcount will unhash this dentry and kill it.
+ */
+static inline void d_lustre_invalidate(struct dentry *dentry, int nested)
{
- if (!locked) {
- cfs_spin_lock(&ll_lookup_lock);
- spin_lock(&dcache_lock);
- }
- if (d_unhashed(dentry))
- d_rehash_cond(dentry, 0);
- if (!locked) {
- spin_unlock(&dcache_lock);
- cfs_spin_unlock(&ll_lookup_lock);
- }
+ CDEBUG(D_DENTRY, "invalidate dentry %.*s (%p) parent %p inode %p "
+ "refc %d\n", dentry->d_name.len, dentry->d_name.name, dentry,
+ dentry->d_parent, dentry->d_inode, d_count(dentry));
+
+ spin_lock_nested(&dentry->d_lock,
+ nested ? DENTRY_D_LOCK_NESTED : DENTRY_D_LOCK_NORMAL);
+ __d_lustre_invalidate(dentry);
+ if (d_count(dentry) == 0)
+ __d_drop(dentry);
+ spin_unlock(&dentry->d_lock);
}
-static inline void ll_dentry_reset_flags(struct dentry *dentry, __u64 bits)
+static inline void d_lustre_revalidate(struct dentry *dentry)
{
- if (bits & MDS_INODELOCK_LOOKUP &&
- dentry->d_flags & DCACHE_LUSTRE_INVALID) {
- lock_dentry(dentry);
- dentry->d_flags &= ~DCACHE_LUSTRE_INVALID;
- unlock_dentry(dentry);
- }
+ spin_lock(&dentry->d_lock);
+ LASSERT(ll_d2d(dentry) != NULL);
+ ll_d2d(dentry)->lld_invalid = 0;
+ spin_unlock(&dentry->d_lock);
}
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,7,50,0)
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 50, 0)
/* Compatibility for old (1.8) compiled userspace quota code */
struct if_quotactl_18 {
__u32 qc_cmd;
/* End compatibility for old (1.8) compiled userspace quota code */
#else
#warning "remove old LL_IOC_QUOTACTL_18 compatibility code"
-#endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,7,50,0) */
+#endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 50, 0) */
+
+enum {
+ LL_LAYOUT_GEN_NONE = ((__u32)-2), /* layout lock was cancelled */
+ LL_LAYOUT_GEN_EMPTY = ((__u32)-1) /* for empty layout */
+};
+
+int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf);
+int ll_layout_refresh(struct inode *inode, __u32 *gen);
+int ll_layout_restore(struct inode *inode, loff_t start, __u64 length);
+
+int ll_xattr_init(void);
+void ll_xattr_fini(void);
+
+int ll_page_sync_io(const struct lu_env *env, struct cl_io *io,
+ struct cl_page *page, enum cl_req_type crt);
#endif /* LLITE_INTERNAL_H */