* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2016, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
/* for non-directory */
struct {
- struct mutex lli_size_mutex;
- char *lli_symlink_name;
+ struct mutex lli_size_mutex;
+ char *lli_symlink_name;
/*
* struct rw_semaphore {
* signed long count; // align d.d_def_acl
* struct list_head wait_list;
* }
*/
- struct rw_semaphore lli_trunc_sem;
- struct range_lock_tree lli_write_tree;
+ struct rw_semaphore lli_trunc_sem;
+ struct range_lock_tree lli_write_tree;
- struct rw_semaphore lli_glimpse_sem;
- cfs_time_t lli_glimpse_time;
- struct list_head lli_agl_list;
- __u64 lli_agl_index;
+ struct rw_semaphore lli_glimpse_sem;
+ ktime_t lli_glimpse_time;
+ struct list_head lli_agl_list;
+ __u64 lli_agl_index;
/* for writepage() only to communicate to fsync */
- int lli_async_rc;
+ int lli_async_rc;
/*
- * whenever a process try to read/write the file, the
+ * 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
+ * So the read/write statistics for jobid will not be
* accurate if the file is shared by different jobs.
*/
char lli_jobid[LUSTRE_JOBID_SIZE];
#define LL_SBI_FAST_READ 0x400000 /* fast read support */
#define LL_SBI_FILE_SECCTX 0x800000 /* set file security context at create */
#define LL_SBI_PIO 0x1000000 /* parallel IO support */
+#define LL_SBI_TINY_WRITE 0x2000000 /* tiny write support */
#define LL_SBI_FLAGS { \
"nolck", \
"fast_read", \
"file_secctx", \
"pio", \
+ "tiny_write", \
}
/* This is embedded into llite super-blocks to keep track of connect
bool ll_lock_no_expand;
rwlock_t fd_lock; /* protect lcc list */
struct list_head fd_lccs; /* list of ll_cl_context */
+ /* Used by mirrored file to lead IOs to a specific mirror, usually
+ * 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 */
+ __u32 fd_layout_version;
};
extern struct proc_dir_entry *proc_lustre_fs_root;
return !!(sbi->ll_flags & LL_SBI_FAST_READ);
}
+static inline bool ll_sbi_has_tiny_write(struct ll_sb_info *sbi)
+{
+ return !!(sbi->ll_flags & LL_SBI_TINY_WRITE);
+}
+
void ll_ras_enter(struct file *f);
/* llite/lcommon_misc.c */
int ll_writepage(struct page *page, struct writeback_control *wbc);
int ll_writepages(struct address_space *, struct writeback_control *wbc);
int ll_readpage(struct file *file, struct page *page);
+int ll_io_read_page(const struct lu_env *env, struct cl_io *io,
+ struct cl_page *page, struct file *file);
void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras);
int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io);
int ll_data_version(struct inode *inode, __u64 *data_version, int flags);
int ll_hsm_release(struct inode *inode);
int ll_hsm_state_set(struct inode *inode, struct hsm_state_set *hss);
+void ll_io_set_mirror(struct cl_io *io, const struct file *file);
/* llite/dcache.c */
int ll_setattr(struct dentry *de, struct iattr *attr);
int ll_statfs(struct dentry *de, struct kstatfs *sfs);
int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
- __u64 max_age, __u32 flags);
+ u32 flags);
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);
struct iov_iter lti_iter;
struct vvp_io_args lti_args;
struct ra_io_arg lti_ria;
- struct kiocb lti_kiocb;
struct ll_cl_context lti_io_ctx;
};
down_read(&lli->lli_glimpse_sem);
rc = cl_glimpse_size(inode);
- lli->lli_glimpse_time = cfs_time_current();
+ lli->lli_glimpse_time = ktime_get();
up_read(&lli->lli_glimpse_sem);
return rc;
}
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_layout_write_intent(struct inode *inode, __u64 start, __u64 end);
+int ll_layout_write_intent(struct inode *inode, enum layout_intent_opc opc,
+ struct lu_extent *ext);
int ll_xattr_init(void);
void ll_xattr_fini(void);