* 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/
#ifndef LLITE_INTERNAL_H
#define LLITE_INTERNAL_H
#include <lustre_debug.h>
-#include <lustre_ver.h>
#include <lustre_disk.h> /* for s2sbi */
#include <lustre_eacl.h>
#include <lustre_linkea.h>
#include <linux/compat.h>
#include <linux/aio.h>
+#include <lustre_compat.h>
#include "vvp_internal.h"
#include "range_lock.h"
/* update atime from MDS no matter if it's older than
* local inode atime. */
- unsigned int lli_update_atime:1;
+ unsigned int lli_update_atime:1,
+ lli_inode_locked:1;
/* Try to make the d::member and f::member are aligned. Before using
* these members, make clear whether it is directory or not. */
/* 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];
__u32 lli_layout_gen;
spinlock_t lli_layout_lock;
+ __u32 lli_projid; /* project id */
+
struct rw_semaphore lli_xattrs_list_rwsem;
struct mutex lli_xattrs_enq_lock;
struct list_head lli_xattrs; /* ll_xattr_entry->xe_list */
* suppress_pings */
#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", \
"always_ping", \
"fast_read", \
"file_secctx", \
+ "pio", \
+ "tiny_write", \
}
/* This is embedded into llite super-blocks to keep track of connect
int ll_flags;
unsigned int ll_umounting:1,
ll_xattr_cache_enabled:1,
+ ll_xattr_cache_set:1, /* already set to 0/1 */
ll_client_common_fill_super_succeeded:1;
struct lustre_client_ocd ll_lco;
unsigned int ll_namelen;
struct file_operations *ll_fop;
- unsigned int ll_md_brw_pages; /* readdir pages per RPC */
-
struct lu_site *ll_site;
struct cl_device *ll_cl;
/* Statistics */
/* root squash */
struct root_squash_info ll_squash;
struct path ll_mnt;
+
+ /* st_blksize returned by stat(2), when non-zero */
+ unsigned int ll_stat_blksize;
};
/*
* true: failure is known, not report again.
* false: unknown failure, should report. */
bool fd_write_failed;
+ 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;
#if BITS_PER_LONG == 32
return 1;
#elif defined(CONFIG_COMPAT)
- return unlikely(in_compat_syscall() || (sbi->ll_flags & LL_SBI_32BIT_API));
+ if (unlikely(sbi->ll_flags & LL_SBI_32BIT_API))
+ return true;
+
+# ifdef CONFIG_X86_X32
+ /* 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(). */
+ if (current->flags & PF_KTHREAD)
+ return false;
+# endif
+
+ return unlikely(in_compat_syscall());
#else
return unlikely(sbi->ll_flags & LL_SBI_32BIT_API);
#endif
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 */
/* llite/lproc_llite.c */
#ifdef CONFIG_PROC_FS
-int lprocfs_register_mountpoint(struct proc_dir_entry *parent,
- struct super_block *sb, char *osc, char *mdc);
-void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi);
+int lprocfs_ll_register_mountpoint(struct proc_dir_entry *parent,
+ struct super_block *sb);
+int lprocfs_ll_register_obd(struct super_block *sb, const char *obdname);
+void lprocfs_ll_unregister_mountpoint(struct ll_sb_info *sbi);
void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count);
extern struct lprocfs_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 inline int lprocfs_ll_register_mountpoint(struct proc_dir_entry *parent,
+ struct super_block *sb) {return 0; }
+static inline int lprocfs_ll_register_obd(struct super_block *sb,
+ const char *obdname) {return 0; }
+static inline void lprocfs_ll_unregister_mountpoint(struct ll_sb_info *sbi) {}
static void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count) {}
#endif
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);
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);
+#ifdef HAVE_INODEOPS_ENHANCED_GETATTR
+int ll_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags);
+#else
int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
+#endif
struct posix_acl *ll_get_acl(struct inode *inode, int type);
+#ifdef HAVE_IOP_SET_ACL
+#ifdef CONFIG_FS_POSIX_ACL
+int ll_set_acl(struct inode *inode, struct posix_acl *acl, int type);
+#else /* !CONFIG_FS_POSIX_ACL */
+#define ll_set_acl NULL
+#endif /* CONFIG_FS_POSIX_ACL */
+
+#endif
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 ll_inode_permission(struct inode *inode, int mask);
# endif
#endif
+int ll_ioctl_fsgetxattr(struct inode *inode, unsigned int cmd,
+ unsigned long arg);
+int ll_ioctl_fssetxattr(struct inode *inode, unsigned int cmd,
+ unsigned long arg);
-int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file,
- __u64 flags, struct lov_user_md *lum,
+int ll_lov_setstripe_ea_info(struct inode *inode, struct dentry *dentry,
+ __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,
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);
return lov_user_md_size(lum->lmm_stripe_count,
LOV_USER_MAGIC_SPECIFIC);
+ case LOV_USER_MAGIC_COMP_V1:
+ return ((struct lov_comp_md_v1 *)lum)->lcm_size;
}
return -EINVAL;
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;
};
}
/* llite/xattr.c */
-int ll_setxattr(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags);
-ssize_t ll_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size);
+extern const struct xattr_handler *ll_xattr_handlers[];
+
+#define XATTR_USER_T 1
+#define XATTR_TRUSTED_T 2
+#define XATTR_SECURITY_T 3
+#define XATTR_ACL_ACCESS_T 4
+#define XATTR_ACL_DEFAULT_T 5
+#define XATTR_LUSTRE_T 6
+#define XATTR_OTHER_T 7
+
ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size);
-int ll_removexattr(struct dentry *dentry, const char *name);
+int ll_xattr_list(struct inode *inode, const char *name, int type,
+ 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.
return cl_glimpse_size0(inode, 0);
}
+/* AGL is 'asychronous glimpse lock', which is a speculative lock taken as
+ * part of statahead */
static inline int cl_agl(struct inode *inode)
{
return cl_glimpse_size0(inode, 1);
}
+int ll_file_lock_ahead(struct file *file, struct llapi_lu_ladvise *ladvise);
+
+int cl_io_get(struct inode *inode, struct lu_env **envout,
+ struct cl_io **ioout, __u16 *refcheck);
+
static inline int ll_glimpse_size(struct inode *inode)
{
struct ll_inode_info *lli = ll_i2info(inode);
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;
}
return true;
}
-/* llite ioctl register support rountine */
-enum llioc_iter {
- LLIOC_CONT = 0,
- LLIOC_STOP
-};
-
-#define LLIOC_MAX_CMD 256
-
-/*
- * Rules to write a callback function:
- *
- * Parameters:
- * @magic: Dynamic ioctl call routine will feed this vaule with the pointer
- * returned to ll_iocontrol_register. Callback functions should use this
- * data to check the potential collasion of ioctl cmd. If collasion is
- * found, callback function should return LLIOC_CONT.
- * @rcp: The result of ioctl command.
- *
- * Return values:
- * If @magic matches the pointer returned by ll_iocontrol_data, the
- * callback should return LLIOC_STOP; return LLIOC_STOP otherwise.
- */
-typedef enum llioc_iter (*llioc_callback_t)(struct inode *inode,
- struct file *file, unsigned int cmd, unsigned long arg,
- void *magic, int *rcp);
-
-/* export functions */
-/* Register ioctl block dynamatically for a regular file.
- *
- * @cmd: the array of ioctl command set
- * @count: number of commands in the @cmd
- * @cb: callback function, it will be called if an ioctl command is found to
- * belong to the command list @cmd.
- *
- * Return vaule:
- * A magic pointer will be returned if success;
- * otherwise, NULL will be returned.
- * */
-void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd);
-void ll_iocontrol_unregister(void *magic);
-
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
- * partial pages except the last one. */
- struct page **ldp_pages;
- /* offset of each page */
- loff_t *ldp_offsets;
- /** if ldp_offsets is NULL, it means a sequential
- * pages to be written, then this is the file offset
- * of the * first page. */
- loff_t ldp_start_offset;
- /** how many bytes are to be written. */
- size_t ldp_size;
- /** # of pages in the array. */
- int ldp_nr;
-};
-
-extern ssize_t ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io,
- int rw, struct inode *inode,
- struct ll_dio_pages *pv);
-
static inline int ll_file_nolock(const struct file *file)
{
struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
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, enum layout_intent_opc opc,
+ struct lu_extent *ext);
int ll_xattr_init(void);
void ll_xattr_fini(void);
-int ll_getxattr_common(struct inode *inode, const char *name,
- void *buffer, size_t size, __u64 valid);
int ll_page_sync_io(const struct lu_env *env, struct cl_io *io,
struct cl_page *page, enum cl_req_type crt);
u64 cl_fid_build_ino(const struct lu_fid *fid, int api32);
u32 cl_fid_build_gen(const struct lu_fid *fid);
-#ifndef HAVE_IOV_ITER_TRUNCATE
-static inline void iov_iter_truncate(struct iov_iter *i, u64 count)
-{
- if (i->count > count)
- i->count = count;
-}
-#endif
-
-#ifndef HAVE_IS_SXID
-static inline bool is_sxid(umode_t mode)
-{
- return (mode & S_ISUID) || ((mode & S_ISGID) && (mode & S_IXGRP));
-}
-#endif
-
-#ifndef IS_NOSEC
-#define IS_NOSEC(inode) (!is_sxid(inode->i_mode))
-#endif
-
-#ifndef HAVE_FILE_OPERATIONS_READ_WRITE_ITER
-static inline void iov_iter_reexpand(struct iov_iter *i, size_t count)
-{
- i->count = count;
-}
-
-static inline struct iovec iov_iter_iovec(const struct iov_iter *iter)
-{
- return (struct iovec) {
- .iov_base = iter->iov->iov_base + iter->iov_offset,
- .iov_len = min(iter->count,
- iter->iov->iov_len - iter->iov_offset),
- };
-}
-
-#define iov_for_each(iov, iter, start) \
- for (iter = (start); \
- (iter).count && ((iov = iov_iter_iovec(&(iter))), 1); \
- iov_iter_advance(&(iter), (iov).iov_len))
-
-static inline ssize_t
-generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
-{
- struct iovec iov;
- struct iov_iter i;
- ssize_t bytes = 0;
-
- iov_for_each(iov, i, *iter) {
- ssize_t res;
-
- res = generic_file_aio_read(iocb, &iov, 1, iocb->ki_pos);
- if (res <= 0) {
- if (bytes == 0)
- bytes = res;
- break;
- }
-
- bytes += res;
- if (res < iov.iov_len)
- break;
- }
-
- if (bytes > 0)
- iov_iter_advance(iter, bytes);
- return bytes;
-}
-
-static inline ssize_t
-__generic_file_write_iter(struct kiocb *iocb, struct iov_iter *iter)
-{
- struct iovec iov;
- struct iov_iter i;
- ssize_t bytes = 0;
-
- iov_for_each(iov, i, *iter) {
- ssize_t res;
-
- res = __generic_file_aio_write(iocb, &iov, 1, &iocb->ki_pos);
- if (res <= 0) {
- if (bytes == 0)
- bytes = res;
- break;
- }
-
- bytes += res;
- if (res < iov.iov_len)
- break;
- }
-
- if (bytes > 0)
- iov_iter_advance(iter, bytes);
- return bytes;
-}
-#endif /* HAVE_FILE_OPERATIONS_READ_WRITE_ITER */
#endif /* LLITE_INTERNAL_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff