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-rw-r--r--xlators/cluster/dht/src/dht-common.h413
1 files changed, 331 insertions, 82 deletions
diff --git a/xlators/cluster/dht/src/dht-common.h b/xlators/cluster/dht/src/dht-common.h
index 95d1b1d6a08..ab1b82af2a0 100644
--- a/xlators/cluster/dht/src/dht-common.h
+++ b/xlators/cluster/dht/src/dht-common.h
@@ -29,45 +29,61 @@
#ifndef _DHT_H
#define _DHT_H
-#define GF_XATTR_FIX_LAYOUT_KEY "trusted.distribute.fix.layout"
+#define GF_XATTR_FIX_LAYOUT_KEY "trusted.distribute.fix.layout"
#define GF_DHT_LOOKUP_UNHASHED_ON 1
#define GF_DHT_LOOKUP_UNHASHED_AUTO 2
-#define DHT_PATHINFO_HEADER "DISTRIBUTE:"
+#define DHT_PATHINFO_HEADER "DISTRIBUTE:"
#include <fnmatch.h>
typedef int (*dht_selfheal_dir_cbk_t) (call_frame_t *frame, void *cookie,
- xlator_t *this,
- int32_t op_ret, int32_t op_errno);
+ xlator_t *this,
+ int32_t op_ret, int32_t op_errno);
+typedef int (*dht_defrag_cbk_fn_t) (xlator_t *this, call_frame_t *frame,
+ int ret);
struct dht_layout {
- int spread_cnt; /* layout spread count per directory,
- is controlled by 'setxattr()' with
- special key */
- int cnt;
- int preset;
- int gen;
- int type;
- int ref; /* use with dht_conf_t->layout_lock */
- int search_unhashed;
+ int spread_cnt; /* layout spread count per directory,
+ is controlled by 'setxattr()' with
+ special key */
+ int cnt;
+ int preset;
+ int gen;
+ int type;
+ int ref; /* use with dht_conf_t->layout_lock */
+ int search_unhashed;
struct {
- int err; /* 0 = normal
- -1 = dir exists and no xattr
- >0 = dir lookup failed with errno
- */
- uint32_t start;
- uint32_t stop;
- xlator_t *xlator;
+ int err; /* 0 = normal
+ -1 = dir exists and no xattr
+ >0 = dir lookup failed with errno
+ */
+ uint32_t start;
+ uint32_t stop;
+ xlator_t *xlator;
} list[0];
};
-typedef struct dht_layout dht_layout_t;
+typedef struct dht_layout dht_layout_t;
typedef enum {
DHT_HASH_TYPE_DM,
} dht_hashfn_type_t;
+/* rebalance related */
+struct dht_rebalance_ {
+ xlator_t *from_subvol;
+ xlator_t *target_node;
+ int32_t wbflags;
+ off_t offset;
+ size_t size;
+ int32_t flags;
+ int count;
+ struct iobref *iobref;
+ struct iovec *vector;
+ struct iatt stbuf;
+ dht_defrag_cbk_fn_t target_op_fn;
+};
struct dht_local {
int call_cnt;
@@ -140,11 +156,12 @@ struct dht_local {
/* flag used to make sure we need to return estale in
{lookup,revalidate}_cbk */
- char return_estale;
+ char return_estale;
+ char need_lookup_everywhere;
- /* rebalance related */
-#define to_subvol hashed_subvol
-#define from_subvol cached_subvol
+ glusterfs_fop_t fop;
+
+ struct dht_rebalance_ rebalance;
};
typedef struct dht_local dht_local_t;
@@ -209,11 +226,21 @@ typedef struct dht_disk_layout dht_disk_layout_t;
#define is_last_call(cnt) (cnt == 0)
-#define DHT_LINKFILE_MODE (S_ISVTX)
+#define DHT_MIGRATION_IN_PROGRESS 1
+#define DHT_MIGRATION_COMPLETED 2
+
+#define DHT_LINKFILE_KEY "trusted.glusterfs.dht.linkto"
+#define DHT_LINKFILE_MODE (S_ISVTX)
+
#define check_is_linkfile(i,s,x) ( \
((st_mode_from_ia (s->ia_prot, s->ia_type) & ~S_IFMT) \
== DHT_LINKFILE_MODE) && \
- (s->ia_size == 0))
+ dict_get (x, DHT_LINKFILE_KEY))
+
+#define check_is_linkfile_wo_dict(i,s) ( \
+ ((st_mode_from_ia (s->ia_prot, s->ia_type) & ~S_IFMT) \
+ == DHT_LINKFILE_MODE))
+
#define check_is_dir(i,s,x) (IA_ISDIR(s->ia_type))
@@ -221,85 +248,86 @@ typedef struct dht_disk_layout dht_disk_layout_t;
#define DHT_STACK_UNWIND(fop, frame, params ...) do { \
dht_local_t *__local = NULL; \
- xlator_t *__xl = NULL; \
+ xlator_t *__xl = NULL; \
if (frame) { \
- __xl = frame->this; \
- __local = frame->local; \
+ __xl = frame->this; \
+ __local = frame->local; \
frame->local = NULL; \
} \
STACK_UNWIND_STRICT (fop, frame, params); \
dht_local_wipe (__xl, __local); \
} while (0)
-#define DHT_STACK_DESTROY(frame) do { \
- dht_local_t *__local = NULL; \
- xlator_t *__xl = NULL; \
- __xl = frame->this; \
- __local = frame->local; \
- frame->local = NULL; \
- STACK_DESTROY (frame->root); \
- dht_local_wipe (__xl, __local); \
+#define DHT_STACK_DESTROY(frame) do { \
+ dht_local_t *__local = NULL; \
+ xlator_t *__xl = NULL; \
+ __xl = frame->this; \
+ __local = frame->local; \
+ frame->local = NULL; \
+ STACK_DESTROY (frame->root); \
+ dht_local_wipe (__xl, __local); \
} while (0)
-dht_layout_t *dht_layout_new (xlator_t *this, int cnt);
-dht_layout_t *dht_layout_get (xlator_t *this, inode_t *inode);
-dht_layout_t *dht_layout_for_subvol (xlator_t *this, xlator_t *subvol);
-xlator_t *dht_layout_search (xlator_t *this, dht_layout_t *layout,
+dht_layout_t *dht_layout_new (xlator_t *this, int cnt);
+dht_layout_t *dht_layout_get (xlator_t *this, inode_t *inode);
+dht_layout_t *dht_layout_for_subvol (xlator_t *this, xlator_t *subvol);
+xlator_t *dht_layout_search (xlator_t *this, dht_layout_t *layout,
const char *name);
-int dht_layout_normalize (xlator_t *this, loc_t *loc, dht_layout_t *layout);
-int dht_layout_anomalies (xlator_t *this, loc_t *loc, dht_layout_t *layout,
- uint32_t *holes_p, uint32_t *overlaps_p,
- uint32_t *missing_p, uint32_t *down_p,
- uint32_t *misc_p);
-int dht_layout_dir_mismatch (xlator_t *this, dht_layout_t *layout,
- xlator_t *subvol, loc_t *loc, dict_t *xattr);
+int dht_layout_normalize (xlator_t *this, loc_t *loc, dht_layout_t *layout);
+int dht_layout_anomalies (xlator_t *this, loc_t *loc, dht_layout_t *layout,
+ uint32_t *holes_p, uint32_t *overlaps_p,
+ uint32_t *missing_p, uint32_t *down_p,
+ uint32_t *misc_p);
+int dht_layout_dir_mismatch (xlator_t *this, dht_layout_t *layout,
+ xlator_t *subvol, loc_t *loc, dict_t *xattr);
xlator_t *dht_linkfile_subvol (xlator_t *this, inode_t *inode,
struct iatt *buf, dict_t *xattr);
-int dht_linkfile_unlink (call_frame_t *frame, xlator_t *this,
- xlator_t *subvol, loc_t *loc);
+int dht_linkfile_unlink (call_frame_t *frame, xlator_t *this,
+ xlator_t *subvol, loc_t *loc);
int dht_layouts_init (xlator_t *this, dht_conf_t *conf);
int dht_layout_merge (xlator_t *this, dht_layout_t *layout, xlator_t *subvol,
- int op_ret, int op_errno, dict_t *xattr);
+ int op_ret, int op_errno, dict_t *xattr);
int dht_disk_layout_extract (xlator_t *this, dht_layout_t *layout,
- int pos, int32_t **disk_layout_p);
-int dht_disk_layout_merge (xlator_t *this, dht_layout_t *layout,
- int pos, void *disk_layout_raw);
+ int pos, int32_t **disk_layout_p);
+int dht_disk_layout_merge (xlator_t *this, dht_layout_t *layout,
+ int pos, void *disk_layout_raw);
int dht_frame_return (call_frame_t *frame);
-int dht_itransform (xlator_t *this, xlator_t *subvol, uint64_t x, uint64_t *y);
+int dht_itransform (xlator_t *this, xlator_t *subvol, uint64_t x, uint64_t *y);
int dht_deitransform (xlator_t *this, uint64_t y, xlator_t **subvol,
uint64_t *x);
void dht_local_wipe (xlator_t *this, dht_local_t *local);
-dht_local_t *dht_local_init (call_frame_t *frame);
-int dht_iatt_merge (xlator_t *this, struct iatt *to, struct iatt *from,
- xlator_t *subvol);
+dht_local_t *dht_local_init (call_frame_t *frame, loc_t *loc, fd_t *fd,
+ glusterfs_fop_t fop);
+int dht_iatt_merge (xlator_t *this, struct iatt *to, struct iatt *from,
+ xlator_t *subvol);
xlator_t *dht_subvol_get_hashed (xlator_t *this, loc_t *loc);
xlator_t *dht_subvol_get_cached (xlator_t *this, inode_t *inode);
xlator_t *dht_subvol_next (xlator_t *this, xlator_t *prev);
-int dht_subvol_cnt (xlator_t *this, xlator_t *subvol);
+int dht_subvol_cnt (xlator_t *this, xlator_t *subvol);
int dht_hash_compute (int type, const char *name, uint32_t *hash_p);
-int dht_linkfile_create (call_frame_t *frame, fop_mknod_cbk_t linkfile_cbk,
- xlator_t *tovol, xlator_t *fromvol, loc_t *loc);
-int dht_lookup_directory (call_frame_t *frame, xlator_t *this, loc_t *loc);
-int dht_lookup_everywhere (call_frame_t *frame, xlator_t *this, loc_t *loc);
+int dht_linkfile_create (call_frame_t *frame, fop_mknod_cbk_t linkfile_cbk,
+ xlator_t *tovol, xlator_t *fromvol, loc_t *loc);
+int dht_lookup_directory (call_frame_t *frame, xlator_t *this, loc_t *loc);
+int dht_lookup_everywhere (call_frame_t *frame, xlator_t *this, loc_t *loc);
int
-dht_selfheal_directory (call_frame_t *frame, dht_selfheal_dir_cbk_t cbk,
- loc_t *loc, dht_layout_t *layout);
+dht_selfheal_directory (call_frame_t *frame, dht_selfheal_dir_cbk_t cbk,
+ loc_t *loc, dht_layout_t *layout);
int
dht_selfheal_new_directory (call_frame_t *frame, dht_selfheal_dir_cbk_t cbk,
dht_layout_t *layout);
int
-dht_selfheal_restore (call_frame_t *frame, dht_selfheal_dir_cbk_t cbk,
- loc_t *loc, dht_layout_t *layout);
+dht_selfheal_restore (call_frame_t *frame, dht_selfheal_dir_cbk_t cbk,
+ loc_t *loc, dht_layout_t *layout);
int
dht_layout_sort_volname (dht_layout_t *layout);
@@ -308,31 +336,252 @@ int dht_rename (call_frame_t *frame, xlator_t *this,
int dht_get_du_info (call_frame_t *frame, xlator_t *this, loc_t *loc);
-int dht_is_subvol_filled (xlator_t *this, xlator_t *subvol);
+int dht_is_subvol_filled (xlator_t *this, xlator_t *subvol);
xlator_t *dht_free_disk_available_subvol (xlator_t *this, xlator_t *subvol);
-int dht_get_du_info_for_subvol (xlator_t *this, int subvol_idx);
+int dht_get_du_info_for_subvol (xlator_t *this, int subvol_idx);
int dht_layout_preset (xlator_t *this, xlator_t *subvol, inode_t *inode);
-int dht_layout_set (xlator_t *this, inode_t *inode, dht_layout_t *layout);
-void dht_layout_unref (xlator_t *this, dht_layout_t *layout);
+int dht_layout_set (xlator_t *this, inode_t *inode, dht_layout_t *layout);
+void dht_layout_unref (xlator_t *this, dht_layout_t *layout);
dht_layout_t *dht_layout_ref (xlator_t *this, dht_layout_t *layout);
-xlator_t *dht_first_up_subvol (xlator_t *this);
-xlator_t *dht_last_up_subvol (xlator_t *this);
+xlator_t *dht_first_up_subvol (xlator_t *this);
+xlator_t *dht_last_up_subvol (xlator_t *this);
int dht_build_child_loc (xlator_t *this, loc_t *child, loc_t *parent, char *name);
-int dht_filter_loc_subvol_key (xlator_t *this, loc_t *loc, loc_t *new_loc,
+int dht_filter_loc_subvol_key (xlator_t *this, loc_t *loc, loc_t *new_loc,
xlator_t **subvol);
-int dht_rename_cleanup (call_frame_t *frame);
+int dht_rename_cleanup (call_frame_t *frame);
int dht_rename_links_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- inode_t *inode, struct iatt *stbuf,
- struct iatt *preparent, struct iatt *postparent);
+ int32_t op_ret, int32_t op_errno,
+ inode_t *inode, struct iatt *stbuf,
+ struct iatt *preparent, struct iatt *postparent);
int dht_fix_directory_layout (call_frame_t *frame,
- dht_selfheal_dir_cbk_t dir_cbk,
- dht_layout_t *layout);
+ dht_selfheal_dir_cbk_t dir_cbk,
+ dht_layout_t *layout);
+int dht_init_subvolumes (xlator_t *this, dht_conf_t *conf);
+
+/* migration/rebalance */
int dht_start_rebalance_task (xlator_t *this, call_frame_t *frame);
-#endif /* _DHT_H */
+
+int dht_rebalance_in_progress_check (xlator_t *this, call_frame_t *frame);
+int dht_rebalance_complete_check (xlator_t *this, call_frame_t *frame);
+
+
+/* FOPS */
+int32_t dht_lookup (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ dict_t *xattr_req);
+
+int32_t dht_stat (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc);
+
+int32_t dht_fstat (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd);
+
+int32_t dht_truncate (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ off_t offset);
+
+int32_t dht_ftruncate (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd,
+ off_t offset);
+
+int32_t dht_access (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ int32_t mask);
+
+int32_t dht_readlink (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ size_t size);
+
+int32_t dht_mknod (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, mode_t mode, dev_t rdev, dict_t *params);
+
+int32_t dht_mkdir (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, mode_t mode, dict_t *params);
+
+int32_t dht_unlink (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc);
+
+int32_t dht_rmdir (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int flags);
+
+int32_t dht_symlink (call_frame_t *frame, xlator_t *this,
+ const char *linkpath, loc_t *loc, dict_t *params);
+
+int32_t dht_rename (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *oldloc,
+ loc_t *newloc);
+
+int32_t dht_link (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *oldloc,
+ loc_t *newloc);
+
+int32_t dht_create (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int32_t flags, mode_t mode,
+ fd_t *fd, dict_t *params);
+
+int32_t dht_open (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ int32_t flags, fd_t *fd,
+ int32_t wbflags);
+
+int32_t dht_readv (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd,
+ size_t size,
+ off_t offset);
+
+int32_t dht_writev (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd,
+ struct iovec *vector,
+ int32_t count,
+ off_t offset,
+ struct iobref *iobref);
+
+int32_t dht_flush (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd);
+
+int32_t dht_fsync (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd,
+ int32_t datasync);
+
+int32_t dht_opendir (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc, fd_t *fd);
+
+int32_t dht_fsyncdir (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd,
+ int32_t datasync);
+
+int32_t dht_statfs (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc);
+
+int32_t dht_setxattr (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ dict_t *dict,
+ int32_t flags);
+
+int32_t dht_getxattr (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ const char *name);
+
+int32_t dht_fsetxattr (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd,
+ dict_t *dict,
+ int32_t flags);
+
+int32_t dht_fgetxattr (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd,
+ const char *name);
+
+int32_t dht_removexattr (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ const char *name);
+
+int32_t dht_lk (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd,
+ int32_t cmd,
+ struct gf_flock *flock);
+
+int32_t dht_inodelk (call_frame_t *frame, xlator_t *this,
+ const char *volume, loc_t *loc, int32_t cmd,
+ struct gf_flock *flock);
+
+int32_t dht_finodelk (call_frame_t *frame, xlator_t *this,
+ const char *volume, fd_t *fd, int32_t cmd,
+ struct gf_flock *flock);
+
+int32_t dht_entrylk (call_frame_t *frame, xlator_t *this,
+ const char *volume, loc_t *loc, const char *basename,
+ entrylk_cmd cmd, entrylk_type type);
+
+int32_t dht_fentrylk (call_frame_t *frame, xlator_t *this,
+ const char *volume, fd_t *fd, const char *basename,
+ entrylk_cmd cmd, entrylk_type type);
+
+int32_t dht_readdir (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd,
+ size_t size, off_t off);
+
+int32_t dht_readdirp (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd,
+ size_t size, off_t off);
+
+int32_t dht_xattrop (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ gf_xattrop_flags_t flags,
+ dict_t *dict);
+
+int32_t dht_fxattrop (call_frame_t *frame,
+ xlator_t *this,
+ fd_t *fd,
+ gf_xattrop_flags_t flags,
+ dict_t *dict);
+
+int32_t dht_forget (xlator_t *this, inode_t *inode);
+int32_t dht_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc,
+ struct iatt *stbuf, int32_t valid);
+int32_t dht_fsetattr (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ struct iatt *stbuf, int32_t valid);
+
+int32_t dht_notify (xlator_t *this, int32_t event, void *data, ...);
+
+/* definitions for nufa/switch */
+int dht_revalidate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, inode_t *inode,
+ struct iatt *stbuf, dict_t *xattr,
+ struct iatt *postparent);
+int dht_lookup_dir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, inode_t *inode,
+ struct iatt *stbuf, dict_t *xattr,
+ struct iatt *postparent);
+int dht_lookup_linkfile_cbk (call_frame_t *frame, void *cookie,
+ xlator_t *this, int op_ret, int op_errno,
+ inode_t *inode, struct iatt *stbuf, dict_t *xattr,
+ struct iatt *postparent);
+int dht_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno,
+ inode_t *inode, struct iatt *stbuf, dict_t *xattr,
+ struct iatt *postparent);
+int dht_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno,
+ fd_t *fd, inode_t *inode, struct iatt *stbuf,
+ struct iatt *preparent, struct iatt *postparent);
+int dht_newfile_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno,
+ inode_t *inode, struct iatt *stbuf, struct iatt *preparent,
+ struct iatt *postparent);
+
+
+
+#endif/* _DHT_H */