-/* -*- 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 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 */
#include <lclient.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;
+ 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;
+ unsigned int lld_invalid:1;
+ struct rcu_head lld_rcu_head;
};
#define ll_d2d(de) ((struct ll_dentry_data*)((de)->d_fsdata))
LLIF_CONTENDED = (1 << 4),
/* Truncate uses server lock for this file */
LLIF_SRVLOCK = (1 << 5),
-
+ /* File data is modified. */
+ LLIF_DATA_MODIFIED = (1 << 6),
+ /* File is being restored */
+ LLIF_FILE_RESTORING = (1 << 7),
+ /* Xattr cache is attached to the file */
+ LLIF_XATTR_CACHE = (1 << 8),
};
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_semaphore_t lli_rmtperm_sem;
+ cfs_hlist_head_t *lli_remote_perms;
+ struct mutex lli_rmtperm_mutex;
/* identifying fields for both metadata and data stacks. */
struct lu_fid lli_fid;
__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_semaphore_t lli_och_sem;
+ /* 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_semaphore_t d_readdir_sem;
+ /* 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;
+ } d;
-#define lli_readdir_sem u.d.d_readdir_sem
+#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_semaphore_t f_write_sem;
-
- /* 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;
+ /* for non-directory */
+ struct {
+ struct semaphore f_size_sem;
+ void *f_size_sem_owner;
+ 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;
+ cfs_list_t f_agl_list;
+ __u64 f_agl_index;
+
+ /* for writepage() only to communicate to fsync */
+ int f_async_rc;
+
+ /* volatile file criteria is based on file name, this
+ * flag is used to keep the test result, so the strcmp
+ * is done only once
+ */
+ bool f_volatile;
+ /*
+ * 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_sem u.f.f_size_sem
#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_sem u.f.f_write_sem
-#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_write_mutex u.f.f_write_mutex
+#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
+#define lli_volatile u.f.f_volatile
- } 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;
+ /* valid only inside LAYOUT ibits lock, protected by lli_layout_mutex */
+ __u32 lli_layout_gen;
+
+ struct rw_semaphore lli_xattrs_list_rwsem;
+ struct mutex lli_xattrs_enq_lock;
+ struct list_head lli_xattrs; /* ll_xattr_entry->xe_list */
};
+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);
+
+int ll_xattr_cache_update(struct inode *inode,
+ const char *name,
+ const char *newval,
+ size_t size,
+ __u64 valid,
+ int flags);
+
/*
* 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_sem 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,
#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_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", \
+}
/* default value for ll_sb_info->contention_time */
#define SBI_DEFAULT_CONTENTION_SECONDS 60
};
struct rmtacl_ctl_table {
- cfs_spinlock_t rct_lock;
- cfs_list_t rct_entries[RCE_HASHES];
+ spinlock_t rct_lock;
+ cfs_list_t rct_entries[RCE_HASHES];
};
#define EE_HASHES 32
};
struct eacl_table {
- cfs_spinlock_t et_lock;
- cfs_list_t et_entries[EE_HASHES];
+ spinlock_t et_lock;
+ cfs_list_t 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 */
+ cfs_list_t 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;
+ unsigned int ll_umounting:1,
+ ll_xattr_cache_enabled:1;
cfs_list_t ll_conn_chain; /* per-conn chain of SBs */
struct lustre_client_ocd ll_lco;
struct lprocfs_stats *ll_stats; /* lprocfs stats counter */
- unsigned long ll_async_page_max;
- unsigned long ll_async_page_count;
+ struct cl_client_cache ll_cache;
struct lprocfs_stats *ll_ra_stats;
* clustred nfs */
struct rmtacl_ctl_table ll_rct;
struct eacl_table ll_et;
- struct vfsmount *ll_mnt;
+ __kernel_fsid_t ll_fsid;
};
#define LL_DEFAULT_MAX_RW_CHUNK (32 * 1024 * 1024)
* 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.
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;
#if BITS_PER_LONG == 32
return 1;
#else
- return unlikely(cfs_curproc_is_32bit() || (sbi->ll_flags & LL_SBI_32BIT_API));
+ return unlikely(
+#ifdef CONFIG_COMPAT
+ is_compat_task() ||
+#endif
+ (sbi->ll_flags & LL_SBI_32BIT_API)
+ );
#endif
}
#define LLAP_MAGIC 98764321
-extern cfs_mem_cache_t *ll_async_page_slab;
+extern struct kmem_cache *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_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 page *ll_get_dir_page(struct inode *dir, __u64 hash,
struct ll_dir_chain *chain);
-int ll_readdir(struct file *filp, void *cookie, filldir_t filldir);
+int ll_dir_read(struct inode *inode, __u64 *_pos, void *cookie,
+ filldir_t filldir);
int ll_get_mdt_idx(struct inode *inode);
/* llite/namei.c */
struct lustre_md *lic);
int ll_md_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
void *data, int flag);
+#ifndef HAVE_IOP_ATOMIC_OPEN
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);
+#endif
+struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de);
+int ll_rmdir_entry(struct inode *dir, char *name, int namelen);
/* 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);
+int ll_writepages(struct address_space *, struct writeback_control *wbc);
void ll_removepage(struct page *page);
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*);
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);
+ struct lustre_handle *lockh, __u64 flags,
+ ldlm_mode_t mode);
int __ll_inode_revalidate_it(struct dentry *, struct lookup_intent *,
__u64 bits);
+#ifdef HAVE_IOP_ATOMIC_OPEN
+int ll_revalidate_nd(struct dentry *dentry, unsigned int flags);
+#else
int ll_revalidate_nd(struct dentry *dentry, struct nameidata *nd);
+#endif
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 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);
+
#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);
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 ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp,
int *lmm_size, struct ptlrpc_request **request);
-#ifndef HAVE_FILE_FSYNC_2ARGS
-int ll_fsync(struct file *file, struct dentry *dentry, int data);
-#else
+#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)
int ll_fsync(struct file *file, int data);
+#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_merge_lvb(const struct lu_env *env, 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_fid2path(struct inode *inode, void *arg);
+int ll_data_version(struct inode *inode, __u64 *data_version, int extent_lock);
+int ll_hsm_release(struct inode *inode);
+
+struct obd_client_handle *ll_lease_open(struct inode *inode, struct file *file,
+ fmode_t mode, __u64 flags);
+int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
+ bool *lease_broken);
/* 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;
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_invalidate_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);
+#ifdef HAVE_D_COMPARE_7ARGS
+int ll_dcompare(const struct dentry *parent, const struct inode *pinode,
+ const struct dentry *dentry, const struct inode *inode,
+ unsigned int len, const char *str, const struct qstr *d_name);
+#else
int ll_dcompare(struct dentry *parent, struct qstr *d_name, struct qstr *name);
+#endif
int ll_revalidate_it_finish(struct ptlrpc_request *request,
struct lookup_intent *it, struct dentry *de);
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_resource_lock(struct ldlm_lock *lock);
struct inode *ll_inode_from_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);
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);
const char *name, int namelen,
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);
/* llite/llite_nfs.c */
extern struct export_operations lustre_export_operations;
__u32 get_uuid2int(const char *name, int len);
+void get_uuid2fsid(const char *name, int len, __kernel_fsid_t *fsid);
+struct inode *search_inode_for_lustre(struct super_block *sb,
+ const struct lu_fid *fid);
/* llite/special.c */
extern struct inode_operations ll_special_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;
+ cfs_list_t lcq_head;
+ cfs_waitq_t lcq_waitq;
+ struct completion lcq_comp;
+ cfs_atomic_t lcq_stop;
};
struct ccc_object *cl_inode2ccc(struct inode *inode);
/**
* 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;
/**
union {
struct {
-#ifndef HAVE_FILE_WRITEV
struct kiocb *via_iocb;
-#endif
struct iovec *via_iov;
unsigned long via_nrsegs;
} normal;
__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)
{
if (mapping == NULL)
return;
- ll_teardown_mmaps(mapping, offset, offset + CFS_PAGE_SIZE);
+ ll_teardown_mmaps(mapping, offset, offset + PAGE_CACHE_SIZE);
truncate_complete_page(mapping, vmpage);
}
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;
}
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);
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; /* entry list */
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 */
+ spinlock_t sai_cache_lock[LL_SA_CACHE_SIZE];
+ cfs_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
}
static inline int
-ll_statahead_enter(struct inode *dir, struct dentry **dentryp, int only_unplug)
+ll_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 != cfs_curproc_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 = ll_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 */
#define cl_inode_mode(inode) ((inode)->i_mode)
#define cl_i2sbi ll_i2sbi
-static inline void cl_isize_lock(struct inode *inode, int lsmlock)
+static inline struct ll_file_data *cl_iattr2fd(struct inode *inode,
+ const struct iattr *attr)
{
- ll_inode_size_lock(inode, lsmlock);
+ LASSERT(attr->ia_valid & ATTR_FILE);
+ return LUSTRE_FPRIVATE(attr->ia_file);
}
-static inline void cl_isize_unlock(struct inode *inode, int lsmlock)
+static inline void cl_isize_lock(struct inode *inode)
{
- ll_inode_size_unlock(inode, lsmlock);
+ ll_inode_size_lock(inode);
+}
+
+static inline void cl_isize_unlock(struct inode *inode)
+{
+ ll_inode_size_unlock(inode);
}
static inline void cl_isize_write_nolock(struct inode *inode, loff_t 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 %p"
+ "(%lu/%u) for remote lock "LPX64"\n", inode,
+ inode->i_ino, inode->i_generation,
+ 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 %p (%lu/%u)"
+ " for lock "LPX64"\n", inode, inode->i_ino,
+ inode->i_generation, 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_dentry_rehash(struct dentry *dentry, int locked)
+static inline void ll_lock_dcache(struct inode *inode)
{
- 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);
- }
+#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 void ll_dentry_reset_flags(struct dentry *dentry, __u64 bits)
+static inline int d_lustre_invalid(const 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);
- }
+ 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;
}
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,7,50,0)
+/*
+ * 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)
+{
+ 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_refcount(dentry));
+
+ spin_lock_nested(&dentry->d_lock,
+ nested ? DENTRY_D_LOCK_NESTED : DENTRY_D_LOCK_NORMAL);
+ __d_lustre_invalidate(dentry);
+ if (d_refcount(dentry) == 0)
+ __d_drop(dentry);
+ spin_unlock(&dentry->d_lock);
+}
+
+static inline void d_lustre_revalidate(struct 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)
/* 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);
+
+int ll_xattr_init(void);
+void ll_xattr_fini(void);
#endif /* LLITE_INTERNAL_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff