#endif
/* Kernel 3.1 kills LOOKUP_CONTINUE, LOOKUP_PARENT is equivalent to it.
- * seem kernel commit 49084c3bb2055c401f3493c13edae14d49128ca0 */
+ * seem kernel commit 49084c3bb2055c401f3493c13edae14d49128ca0
+ */
#ifndef LOOKUP_CONTINUE
#define LOOKUP_CONTINUE LOOKUP_PARENT
#endif
struct rcu_head lld_rcu_head;
};
-#define ll_d2d(de) ((struct ll_dentry_data*)((de)->d_fsdata))
+#define ll_d2d(de) ((struct ll_dentry_data *)((de)->d_fsdata))
#define LLI_INODE_MAGIC 0x111d0de5
#define LLI_INODE_DEAD 0xdeadd00d
#ifdef HAVE_DIR_CONTEXT
struct dir_context ctx;
#endif
- char *lgd_name; /* points to a buffer with NAME_MAX+1 size */
+ char *lgd_name; /* points to buf with NAME_MAX+1 size */
struct lu_fid lgd_fid; /* target fid we are looking for */
int lgd_found; /* inode matched? */
};
/* master inode fid for stripe directory */
struct lu_fid lli_pfid;
- /* We need all three because every inode may be opened in different
- * modes */
+ /* Need all three because every inode may be opened in different mode */
struct obd_client_handle *lli_mds_read_och;
struct obd_client_handle *lli_mds_write_och;
struct obd_client_handle *lli_mds_exec_och;
ktime_t lli_close_fd_time;
/* Try to make the d::member and f::member are aligned. Before using
- * these members, make clear whether it is directory or not. */
+ * these members, make clear whether it is directory or not.
+ */
union {
/* for directory */
struct {
/* since parent-child threads can share the same @file
* struct, "opendir_key" is the token when dir close for
* case of parent exit before child -- it is me should
- * cleanup the dir readahead. */
+ * cleanup the dir readahead.
+ */
void *lli_opendir_key;
struct ll_statahead_info *lli_sai;
struct ll_statahead_context *lli_sax;
/* protect statahead stuff. */
spinlock_t lli_sa_lock;
/* "opendir_pid" is the token when lookup/revalid
- * -- I am the owner of dir statahead. */
+ * -- I am the owner of dir statahead.
+ */
pid_t lli_opendir_pid;
/* directory depth to ROOT */
unsigned short lli_dir_depth;
* statahead if this flag is set, and this flag will be
* set upon dir open, and cleared when dir is closed,
* statahead hit ratio is too low, or start statahead
- * thread failed. */
+ * thread failed.
+ */
unsigned short lli_sa_enabled:1,
/* default LMV is explicitly set in inode on MDT, this
* is for old server, or default LMV is set by
/* mutex to request for layout lock exclusively. */
struct mutex lli_layout_mutex;
- struct task_struct *lli_layout_lock_owner;
+ struct task_struct *lli_layout_lock_owner;
/* 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 */
+ struct list_head lli_xattrs; /* ll_xattr_entry->xe_list*/
struct list_head lli_lccs; /* list of ll_cl_context */
seqlock_t lli_page_inv_lock;
*
* Implemented by ->lli_size_mutex and ->lsm_lock, nested in that order.
*/
-
void ll_inode_size_lock(struct inode *inode);
void ll_inode_size_unlock(struct inode *inode);
int ll_inode_size_trylock(struct inode *inode);
#define RA_MIN_MMAP_RANGE_PAGES 16UL
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,
+ 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,
RA_STAT_FAILED_REACH_END,
RA_STAT_ASYNC,
RA_STAT_FAILED_FAST_READ,
bool ria_eof; /* reach end of file */
/* If stride read pattern is detected, ria_stoff is the byte offset
* where stride read is started. Note: for normal read-ahead, the
- * value here is meaningless, and also it will not be accessed*/
+ * value here is meaningless, and also it will not be accessed
+ */
loff_t ria_stoff;
/* ria_length and ria_bytes are the length and pages length in the
* stride I/O mode. And they will also be used to check whether
- * it is stride I/O read-ahead in the read-ahead pages*/
+ * it is stride I/O read-ahead in the read-ahead pages
+ */
loff_t ria_length;
loff_t ria_bytes;
};
#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 ll_file_data *rw_last_file;
+ 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 ll_file_data *rw_last_file;
};
enum stats_track_type {
- STATS_TRACK_ALL = 0, /* track all processes */
- STATS_TRACK_PID, /* track process with this pid */
- STATS_TRACK_PPID, /* track processes with this ppid */
- STATS_TRACK_GID, /* track processes with this gid */
- STATS_TRACK_LAST,
+ STATS_TRACK_ALL = 0, /* track all processes */
+ STATS_TRACK_PID, /* track process with this pid */
+ STATS_TRACK_PPID, /* track processes with this ppid */
+ STATS_TRACK_GID, /* track processes with this gid */
+ STATS_TRACK_LAST,
};
/* flags for sbi->ll_flags */
/* This is embedded into llite super-blocks to keep track of connect
* flags (capabilities) supported by all imports given mount is
- * connected to. */
+ * connected to.
+ */
struct lustre_client_ocd {
/* This is conjunction of connect_flags across all imports
* (LOVs) this mount is connected to. This field is updated by
- * cl_ocd_update() under ->lco_lock. */
+ * cl_ocd_update() under ->lco_lock.
+ */
__u64 lco_flags;
struct mutex lco_lock;
struct obd_export *lco_md_exp;
struct ll_sb_info {
/* this protects pglist and ra_info. It isn't safe to
- * grab from interrupt contexts */
+ * 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 */
/* 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. */
+ * but is uncommitted to stable storage.
+ */
struct cl_client_cache *ll_cache;
struct lprocfs_stats *ll_ra_stats;
int ll_rw_stats_on;
/* metadata stat-ahead */
- unsigned int ll_sa_running_max;/* max concurrent
- * statahead instances */
- unsigned int ll_sa_batch_max;/* max SUB request count in
- * a batch PTLRPC request */
+ unsigned int ll_sa_running_max;/* max concurrent sa instant */
+ /* max SUB request cont in a batch PTLRPC request */
+ unsigned int ll_sa_batch_max;
unsigned int ll_sa_max; /* max statahead RPCs */
unsigned int ll_sa_min; /* min statahead req count */
- atomic_t ll_sa_total; /* statahead thread started
- * count */
- atomic_t ll_sa_wrong; /* statahead thread stopped for
- * low hit ratio */
- atomic_t ll_sa_running; /* running statahead thread
- * count */
+ atomic_t ll_sa_total; /* sa thread started count */
+ atomic_t ll_sa_wrong; /* sa stopped low hit ratio */
+ atomic_t ll_sa_running; /* running sa thread count */
atomic_t ll_agl_total; /* AGL thread started count */
atomic_t ll_sa_hit_total; /* total hit count */
atomic_t ll_sa_miss_total; /* total miss count */
* the user is no longer using this directory.
*/
unsigned long ll_sa_timeout;
-
- dev_t ll_sdev_orig; /* save s_dev before assign for
- * clustred nfs */
+ /* save s_dev before assign for clustred nfs */
+ dev_t ll_sdev_orig;
/* root squash */
struct root_squash_info ll_squash;
struct path ll_mnt;
*/
u32 ll_oc_thrsh_ms;
- /* Time in ms after last file close that we no longer count prior opens*/
+ /* Time in ms after last file close we no longer count prior opens*/
u32 ll_oc_max_ms;
/* filesystem fsname */
#define SBI_DEFAULT_OPENCACHE_THRESHOLD_MS (100) /* 0.1 second */
#define SBI_DEFAULT_OPENCACHE_THRESHOLD_MAX_MS (60000) /* 1 minute */
-/*
- * per file-descriptor read-ahead data.
- */
+/* per file-descriptor read-ahead data. */
struct ll_readahead_state {
spinlock_t ras_lock;
/* End byte that read(2) try to read. */
loff_t ras_last_read_end_bytes;
- /*
+ /*
* number of bytes 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.
- */
+ * 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.
+ */
loff_t ras_consecutive_bytes;
- /*
- * 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.
- */
+ /*
+ * 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.
- */
+ /*
+ * 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.
+ */
pgoff_t ras_window_start_idx;
pgoff_t ras_window_pages;
* It decides how many pages will be sent for each read-ahead.
*/
unsigned long ras_rpc_pages;
- /*
- * 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.
- */
+ /*
+ * 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.
+ */
pgoff_t ras_next_readahead_idx;
- /*
- * 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.
- */
+ /*
+ * 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;
- /*
- * The following 3 items are used for detecting the stride I/O
- * mode.
- * In stride I/O mode,
- * ...............|-----data-----|****gap*****|--------|******|....
+ /*
+ * The following 3 items are used for detecting the stride I/O
+ * mode.
+ * In stride I/O mode,
+ * ...............|-----data-----|****gap*****|--------|******|....
* offset |-stride_bytes-|-stride_gap-|
- * ras_stride_offset = offset;
+ * ras_stride_offset = offset;
* ras_stride_length = stride_bytes + stride_gap;
* ras_stride_bytes = stride_bytes;
* Note: all these three items are counted by bytes.
loff_t ras_stride_offset;
loff_t ras_stride_length;
loff_t ras_stride_bytes;
- /*
- * number of consecutive stride request count, and it is similar as
- * ras_consecutive_requests, but used for stride I/O mode.
- * Note: only more than 2 consecutive stride request are detected,
- * stride read-ahead will be enable
- */
+ /*
+ * number of consecutive stride request count, and it is similar as
+ * ras_consecutive_requests, but used for stride I/O mode.
+ * Note: only more than 2 consecutive stride request are detected,
+ * stride read-ahead will be enable
+ */
unsigned long ras_consecutive_stride_requests;
/* index of the last page that async readahead starts */
pgoff_t ras_async_last_readpage_idx;
__u32 fd_flags;
fmode_t fd_omode;
/* openhandle if lease exists for this file.
- * Borrow lli->lli_och_mutex to protect assignment */
+ * 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. */
+ * false: unknown failure, should report.
+ */
bool fd_write_failed;
bool ll_lock_no_expand;
/* Used by mirrored file to lead IOs to a specific mirror, usually
- * for mirror resync. 0 means default. */
+ * for mirror resync. 0 means default.
+ */
__u32 fd_designated_mirror;
/* The layout version when resync starts. Resync I/O should carry this
- * layout version for verification to OST objects */
+ * layout version for verification to OST objects
+ */
__u32 fd_layout_version;
struct pcc_file fd_pcc_file;
/* striped directory may read partially if some stripe inaccessible,
static inline struct inode *ll_info2i(struct ll_inode_info *lli)
{
- return &lli->lli_vfs_inode;
+ return &lli->lli_vfs_inode;
}
__u32 ll_i2suppgid(struct inode *i);
-void ll_i2gids(__u32 *suppgids, struct inode *i1,struct inode *i2);
+void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2);
static inline int ll_need_32bit_api(struct ll_sb_info *sbi)
{
/* in_compat_syscall() returns true when called from a kthread
* and CONFIG_X86_X32 is enabled, which is wrong. So check
* whether the caller comes from a syscall (ie. not a kthread)
- * before calling in_compat_syscall(). */
+ * before calling in_compat_syscall().
+ */
if (current->flags & PF_KTHREAD)
return false;
# endif
extern const struct inode_operations ll_special_inode_operations;
struct inode *ll_iget(struct super_block *sb, ino_t hash,
- struct lustre_md *lic);
+ 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);
+int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *ldesc,
+ void *data, int flag);
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_writepage(struct page *page, struct writeback_control *wbc);
-int ll_writepages(struct address_space *, struct writeback_control *wbc);
+int ll_writepages(struct address_space *a, struct writeback_control *wbc);
int ll_readpage(struct file *file, struct page *page);
#ifdef HAVE_AOPS_READ_FOLIO
int ll_read_folio(struct file *file, struct folio *folio);
int ll_file_open(struct inode *inode, struct file *file);
int ll_file_release(struct inode *inode, struct file *file);
-int ll_release_openhandle(struct dentry *, struct lookup_intent *);
+int ll_release_openhandle(struct dentry *d, struct lookup_intent *l);
int ll_md_real_close(struct inode *inode, fmode_t fmode);
void ll_track_file_opens(struct inode *inode);
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);
+ struct ll_file_data *file, loff_t pos,
+ size_t count, int rw);
#if defined(HAVE_USER_NAMESPACE_ARG) || defined(HAVE_INODEOPS_ENHANCED_GETATTR)
int ll_getattr(struct mnt_idmap *, const struct path *path,
struct kstat *stat, u32 request_mask, unsigned int flags);
unsigned int flags, bool foreign);
#ifdef CONFIG_LUSTRE_FS_POSIX_ACL
struct posix_acl *ll_get_acl(
- #ifdef HAVE_ACL_WITH_DENTRY
+#ifdef HAVE_ACL_WITH_DENTRY
struct mnt_idmap *, struct dentry *, int);
- #elif defined HAVE_GET_ACL_RCU_ARG
+#elif defined HAVE_GET_ACL_RCU_ARG
struct inode *inode, int type, bool rcu);
- #else
+#else
struct inode *inode, int type);
- #endif /* HAVE_GET_ACL_RCU_ARG */
+#endif /* HAVE_GET_ACL_RCU_ARG */
int ll_set_acl(struct mnt_idmap *mnt_userns,
- #ifdef HAVE_ACL_WITH_DENTRY
+#ifdef HAVE_ACL_WITH_DENTRY
struct dentry *dentry,
- #else
+#else
struct inode *inode,
- #endif
+#endif
struct posix_acl *acl, int type);
#else /* !CONFIG_LUSTRE_FS_POSIX_ACL */
#define ll_get_acl NULL
struct lmv_user_md *lum, const char *name, __u32 flags);
int ll_get_fid_by_name(struct inode *parent, const char *name,
int namelen, struct lu_fid *fid, struct inode **inode);
-int ll_inode_permission(struct mnt_idmap *, struct inode *inode, int mask);
+int ll_inode_permission(struct mnt_idmap *mnt, struct inode *inode, int mask);
int ll_ioctl_check_project(struct inode *inode, __u32 xflags, __u32 projid);
int ll_set_project(struct inode *inode, __u32 xflags, __u32 projid);
#ifndef HAVE_FILEATTR_GET
__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);
+ 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 set_default);
int ll_dir_get_default_layout(struct inode *inode, void **plmm, int *plmm_size,
struct ptlrpc_request **request, u64 valid,
enum get_default_layout_type type);
#define lld_is_init(dentry) (true)
#endif
-void ll_intent_drop_lock(struct lookup_intent *);
-void ll_intent_release(struct lookup_intent *);
+void ll_intent_drop_lock(struct lookup_intent *lookup);
+void ll_intent_release(struct lookup_intent *lookup);
void ll_prune_aliases(struct inode *inode);
void ll_lookup_finish_locks(struct lookup_intent *it, struct dentry *dentry);
int ll_revalidate_it_finish(struct ptlrpc_request *request,
- struct lookup_intent *it, struct dentry *de);
+ struct lookup_intent *it, struct dentry *de);
/* llite/llite_lib.c */
extern const struct super_operations lustre_super_operations;
struct file **ref_file);
int ll_setattr_raw(struct dentry *dentry, struct iattr *attr,
enum op_xvalid xvalid, bool hsm_import);
-int ll_setattr(struct mnt_idmap *, struct dentry *de, struct iattr *attr);
+int ll_setattr(struct mnt_idmap *map, struct dentry *de, struct iattr *attr);
int ll_statfs(struct dentry *de, struct kstatfs *sfs);
int ll_statfs_internal(struct ll_sb_info *sbi, struct obd_statfs *osfs,
u32 flags);
/* llite/symlink.c */
extern const struct inode_operations ll_fast_symlink_inode_operations;
-/**
- * IO arguments for various VFS I/O interfaces.
- */
+/* IO arguments for various VFS I/O interfaces. */
struct vvp_io_args {
- /** normal/sendfile/splice */
- union {
- struct {
- struct kiocb *via_iocb;
+ /** normal/sendfile/splice */
+ union {
+ struct {
+ struct kiocb *via_iocb;
struct iov_iter *via_iter;
- } normal;
- } u;
+ } normal;
+ } u;
/* did we switch this IO from BIO to DIO using hybrid IO? */
int via_hybrid_switched:1;
};
/* llite/llite_mmap.c */
-int ll_file_mmap(struct file * file, struct vm_area_struct * vma);
+int ll_file_mmap(struct file *file, struct vm_area_struct *vma);
void policy_from_vma(union ldlm_policy_data *policy, struct vm_area_struct *vma,
unsigned long addr, size_t count);
struct vm_area_struct *our_vma(struct mm_struct *mm, unsigned long addr,
- size_t count);
+ size_t count);
#define ll_s2sbi(sb) (s2lsi(sb)->lsi_llsbi)
/* don't need an addref as the sb_info should be holding one */
static inline struct obd_export *ll_s2dtexp(struct super_block *sb)
{
- return ll_s2sbi(sb)->ll_dt_exp;
+ return ll_s2sbi(sb)->ll_dt_exp;
}
/* don't need an addref as the sb_info should be holding one */
static inline struct obd_export *ll_s2mdexp(struct super_block *sb)
{
- return ll_s2sbi(sb)->ll_md_exp;
+ return ll_s2sbi(sb)->ll_md_exp;
}
static inline struct client_obd *sbi2mdc(struct ll_sb_info *sbi)
{
- struct obd_device *obd = sbi->ll_md_exp->exp_obd;
- if (obd == NULL)
- LBUG();
- return &obd->u.cli;
+ struct obd_device *obd = sbi->ll_md_exp->exp_obd;
+
+ if (obd == NULL)
+ LBUG();
+ return &obd->u.cli;
}
// FIXME: replace the name of this with LL_SB to conform to kernel stuff
static inline struct ll_sb_info *ll_i2sbi(struct inode *inode)
{
- return ll_s2sbi(inode->i_sb);
+ return ll_s2sbi(inode->i_sb);
}
static inline struct obd_export *ll_i2dtexp(struct inode *inode)
{
- return ll_s2dtexp(inode->i_sb);
+ return ll_s2dtexp(inode->i_sb);
}
static inline struct obd_export *ll_i2mdexp(struct inode *inode)
{
- return ll_s2mdexp(inode->i_sb);
+ return ll_s2mdexp(inode->i_sb);
}
static inline struct lu_fid *ll_inode2fid(struct inode *inode)
{
- struct lu_fid *fid;
+ struct lu_fid *fid;
- LASSERT(inode != NULL);
- fid = &ll_i2info(inode)->lli_fid;
+ LASSERT(inode != NULL);
+ fid = &ll_i2info(inode)->lli_fid;
- return fid;
+ return fid;
}
static inline bool ll_dir_striped_locked(struct inode *inode)
{
bool rc;
+
LASSERT(inode);
if (!S_ISDIR(inode->i_mode))
void *buffer, size_t size, u64 valid);
const struct xattr_handler *get_xattr_type(const char *name);
-/**
- * Common IO arguments for various VFS I/O interfaces.
- */
+/* Common IO arguments for various VFS I/O interfaces. */
int cl_sb_init(struct super_block *sb);
int cl_sb_fini(struct super_block *sb);
#define LL_SA_TIMEOUT_DEF 30
-/* XXX: If want to support more concurrent statahead instances,
- * please consider to decentralize the RPC lists attached
- * on related import, such as imp_{sending,delayed}_list.
- * LU-11079 */
+/* XXX: To support more concurrent statahead instances, please consider to
+ * decentralize the RPC lists attached on related import, such as
+ * imp_{sending,delayed}_list. LU-11079
+ */
#define LL_SA_RUNNING_MAX 256
#define LL_SA_RUNNING_DEF 16
/* statahead controller, per process struct, for dir only */
struct ll_statahead_info {
- struct dentry *sai_dentry;
- atomic_t sai_refcount; /* when access this struct, hold
- * refcount */
- 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:
+ struct dentry *sai_dentry;
+ atomic_t sai_refcount; /* On access, hold refcount */
+ unsigned int sai_max; /* max ahead of lookup */
+ __u64 sai_sent; /* stat requests sent count */
+ __u64 sai_replied; /* stat req which recv reply */
+ __u64 sai_index; /* index of statahead entry */
+ /* idx entry which is the caller is waiting for */
+ __u64 sai_index_wait;
+ __u64 sai_hit; /* hit count */
+ __u64 sai_miss; /* miss count:
* for "ls -al" case, includes
* hidden dentry miss;
* for "ls -l" case, it does not
* "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 */
+ unsigned int sai_consecutive_miss; /* consecutive miss */
+ /* "ls -al", but first dentry is not a hidden one */
+ unsigned int sai_miss_hidden;
+ unsigned int sai_skip_hidden;/* skipped hidden dentry cnt */
+ /* "ls -al", do stat-ahead for hidden entries */
+ unsigned int sai_ls_all:1;
wait_queue_head_t sai_waitq; /* stat-ahead wait queue */
struct task_struct *sai_task; /* stat-ahead thread */
struct task_struct *sai_agl_task; /* AGL thread */
return cl_glimpse_size0(inode, 0);
}
-/* AGL is 'asychronous glimpse lock', which is a speculative lock taken as
- * part of statahead */
+/* AGL is 'async glimpse lock',is speculative lock taken as part of statahead */
static inline int cl_agl(struct inode *inode)
{
return cl_glimpse_size0(inode, 1);
}
/* dentry may statahead when statahead is enabled and current process has opened
- * parent directory, and this dentry hasn't accessed statahead cache before */
+ * parent directory, and this dentry hasn't accessed statahead cache before
+ */
static inline bool
dentry_may_statahead(struct inode *dir, struct dentry *dentry)
{
/* statahead is not allowed for this dir, there may be three causes:
* 1. dir is not opened.
* 2. statahead hit ratio is too low.
- * 3. previous stat started statahead thread failed. */
+ * 3. previous stat started statahead thread failed.
+ */
if (!lli->lli_sa_enabled)
return false;
}
static inline void ll_set_lock_data(struct obd_export *exp, struct inode *inode,
- struct lookup_intent *it, __u64 *bits)
+ struct lookup_intent *it, __u64 *bits)
{
if (!it->it_lock_set) {
struct lustre_handle handle;
* 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 */
+ * case the dcache being cleared
+ */
if (it->it_remote_lock_mode) {
handle.cookie = it->it_remote_lock_handle;
CDEBUG(D_DLMTRACE, "setting l_data to inode "DFID
handle.cookie = it->it_lock_handle;
- CDEBUG(D_DLMTRACE, "setting l_data to inode "DFID"(%p)"
- " for lock %#llx\n",
+ CDEBUG(D_DLMTRACE,
+ "setting l_data to inode "DFID"(%p) for lock %#llx\n",
PFID(ll_inode2fid(inode)), inode, handle.cookie);
md_set_lock_data(exp, &handle, inode, &it->it_lock_bits);
* the value returned here will be passed through
* old_encode_dev() in cp_compat_stat(). And so we are not
* trying to return a valid compat (u16) device number, just
- * one that will pass the old_valid_dev() check. */
+ * one that will pass the old_valid_dev() check.
+ */
return MKDEV(MAJOR(dev) & 0xff, MINOR(dev) & 0xff);
}
git://git.whamcloud.com / fs / lustre-release.git / commitdiff