* [PATCH] Btrfs-progs: add restriper commands
2011-08-23 20:08 [PATCH] [RFC] Btrfs-progs: restriper interface Ilya Dryomov
@ 2011-08-23 20:08 ` Ilya Dryomov
0 siblings, 0 replies; 2+ messages in thread
From: Ilya Dryomov @ 2011-08-23 20:08 UTC (permalink / raw)
To: linux-btrfs; +Cc: Chris Mason, Hugo Mills, idryomov
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
---
btrfs.c | 25 +++-
btrfs_cmds.c | 508 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
btrfs_cmds.h | 5 +
ctree.h | 9 +
ioctl.h | 44 +++++
print-tree.c | 3 +
volumes.h | 42 +++++
7 files changed, 632 insertions(+), 4 deletions(-)
diff --git a/btrfs.c b/btrfs.c
index 4cd4210..ae088f5 100644
--- a/btrfs.c
+++ b/btrfs.c
@@ -95,8 +95,29 @@ static struct Command commands[] = {
"filesystem balance", "<path>\n"
"Balance the chunks across the device."
},
- { do_scan, 999,
- "device scan", "[<device>...]\n"
+ { do_restripe, -1,
+ "filesystem restripe start", "[-d [filters]] [-m [filters]] "
+ "[-s [filters]] [-vf] <path>\n"
+ "Start restriper."
+ },
+ { do_restripe_cancel, 1,
+ "filesystem restripe cancel", "<path>\n"
+ "Cancel restriper."
+ },
+ { do_restripe_pause, 1,
+ "filesystem restripe pause", "<path>\n"
+ "Pause restriper."
+ },
+ { do_restripe_resume, 1,
+ "filesystem restripe resume", "<path>\n"
+ "Resume interrupted restripe operation."
+ },
+ { do_restripe_progress, -1,
+ "filesystem restripe status", "[-v] <path>\n"
+ "Show status of running or paused restripe operation."
+ },
+ { do_scan,
+ 999, "device scan", "[<device> [<device>..]\n"
"Scan all device for or the passed device for a btrfs\n"
"filesystem."
},
diff --git a/btrfs_cmds.c b/btrfs_cmds.c
index 32f6b25..c386f74 100644
--- a/btrfs_cmds.c
+++ b/btrfs_cmds.c
@@ -18,6 +18,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <getopt.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <dirent.h>
@@ -819,13 +820,516 @@ int do_balance(int argc, char **argv)
e = errno;
close(fdmnt);
if(ret<0){
- fprintf(stderr, "ERROR: error during balancing '%s' - %s\n",
- path, strerror(e));
+ if (e == ECANCELED) {
+ fprintf(stderr, "restripe interrupted by user\n");
+ } else {
+ fprintf(stderr, "ERROR: error during restriping '%s' "
+ "- %s\n", path, strerror(e));
+ return 19;
+ }
+ }
+ return 0;
+}
+
+static int parse_one_profile(char *profile, u64 *flags)
+{
+ if (!strcmp(profile, "raid0")) {
+ *flags |= BTRFS_BLOCK_GROUP_RAID0;
+ } else if (!strcmp(profile, "raid1")) {
+ *flags |= BTRFS_BLOCK_GROUP_RAID1;
+ } else if (!strcmp(profile, "raid10")) {
+ *flags |= BTRFS_BLOCK_GROUP_RAID10;
+ } else if (!strcmp(profile, "dup")) {
+ *flags |= BTRFS_BLOCK_GROUP_DUP;
+ } else if (!strcmp(profile, "single")) {
+ *flags |= BTRFS_AVAIL_ALLOC_BIT_SINGLE;
+ } else {
+ fprintf(stderr, "Unknown profile '%s'\n", profile);
+ return 1;
+ }
+
+ return 0;
+}
+
+static int parse_profiles(char *profiles, u64 *flags)
+{
+ char *this_char;
+ char *save_ptr;
+
+ for (this_char = strtok_r(profiles, "|", &save_ptr);
+ this_char != NULL;
+ this_char = strtok_r(NULL, "|", &save_ptr)) {
+ if (parse_one_profile(this_char, flags))
+ return 1;
+ }
+
+ return 0;
+}
+
+static int parse_range(char *range, u64 *start, u64 *end)
+{
+ char *dots;
+
+ dots = strstr(range, "..");
+ if (dots) {
+ const char *rest = dots + 2;
+ int skipped = 0;
+
+ *dots = 0;
+
+ if (!*rest) {
+ *end = (u64)-1;
+ skipped++;
+ } else {
+ *end = strtoull(rest, (char **)NULL, 10);
+ }
+ if (dots == range) {
+ *start = 0;
+ skipped++;
+ } else {
+ *start = strtoull(range, (char **)NULL, 10);
+ }
+
+ if (skipped <= 1)
+ return 0;
+ }
+
+ return 1;
+}
+
+static int parse_filters(char *filters, struct btrfs_restripe_args *rargs)
+{
+ char *this_char;
+ char *value;
+ char *save_ptr;
+
+ if (!filters)
+ return 0;
+
+ for (this_char = strtok_r(filters, ",", &save_ptr);
+ this_char != NULL;
+ this_char = strtok_r(NULL, ",", &save_ptr)) {
+ if ((value = strchr(this_char, '=')) != NULL)
+ *value++ = 0;
+ if (!strcmp(this_char, "profiles")) {
+ if (!value || !*value) {
+ fprintf(stderr, "the profiles filter requires "
+ "an argument\n");
+ return 1;
+ }
+ if (parse_profiles(value, &rargs->profiles)) {
+ fprintf(stderr, "Invalid profiles argument\n");
+ return 1;
+ }
+ rargs->flags |= BTRFS_RESTRIPE_ARGS_PROFILES;
+ } else if (!strcmp(this_char, "usage")) {
+ if (!value || !*value) {
+ fprintf(stderr, "the usage filter requires "
+ "an argument\n");
+ return 1;
+ }
+ rargs->usage = strtoull(value, (char **)NULL, 10);
+ if (rargs->usage < 1 || rargs->usage > 100) {
+ fprintf(stderr, "Invalid usage argument: %s\n",
+ value);
+ return 1;
+ }
+ rargs->flags |= BTRFS_RESTRIPE_ARGS_USAGE;
+ } else if (!strcmp(this_char, "devid")) {
+ if (!value || !*value) {
+ fprintf(stderr, "the devid filter requires "
+ "an argument\n");
+ return 1;
+ }
+ rargs->devid = strtoull(value, (char **)NULL, 10);
+ if (rargs->devid == 0) {
+ fprintf(stderr, "Invalid devid argument: %s\n",
+ value);
+ return 1;
+ }
+ rargs->flags |= BTRFS_RESTRIPE_ARGS_DEVID;
+ } else if (!strcmp(this_char, "drange")) {
+ if (!value || !*value) {
+ fprintf(stderr, "the drange filter requires "
+ "an argument\n");
+ return 1;
+ }
+ if (parse_range(value, &rargs->pstart, &rargs->pend)) {
+ fprintf(stderr, "Invalid drange argument\n");
+ return 1;
+ }
+ rargs->flags |= BTRFS_RESTRIPE_ARGS_DRANGE;
+ } else if (!strcmp(this_char, "vrange")) {
+ if (!value || !*value) {
+ fprintf(stderr, "the vrange filter requires "
+ "an argument\n");
+ return 1;
+ }
+ if (parse_range(value, &rargs->vstart, &rargs->vend)) {
+ fprintf(stderr, "Invalid vrange argument\n");
+ return 1;
+ }
+ rargs->flags |= BTRFS_RESTRIPE_ARGS_VRANGE;
+ } else if (!strcmp(this_char, "convert")) {
+ if (!value || !*value) {
+ fprintf(stderr, "the convert option requires "
+ "an argument\n");
+ return 1;
+ }
+ if (parse_one_profile(value, &rargs->target)) {
+ fprintf(stderr, "Invalid convert argument\n");
+ return 1;
+ }
+ rargs->flags |= BTRFS_RESTRIPE_ARGS_CONVERT;
+ } else if (!strcmp(this_char, "soft")) {
+ rargs->flags |= BTRFS_RESTRIPE_ARGS_SOFT;
+ } else {
+ fprintf(stderr, "Unrecognized restripe option '%s'\n",
+ this_char);
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+static void dump_ioctl_restripe_args(struct btrfs_ioctl_restripe_args *args);
+
+static struct option restripe_longopts[] = {
+ { "data", 2, NULL, 'd'},
+ { "metadata", 2, NULL, 'm' },
+ { "system", 2, NULL, 's' },
+ { "force", 0, NULL, 'f' },
+ { "verbose", 0, NULL, 'v' },
+ { 0, 0, 0, 0}
+};
+
+/*
+ * [-d [filters]] [-m [filters]] [-s [filters]] [-vf]
+ */
+int do_restripe(int ac, char **av)
+{
+ int fd;
+ char *path;
+ struct btrfs_ioctl_restripe_args args;
+ struct btrfs_restripe_args *ptrs[] = { &args.data, &args.sys,
+ &args.meta, NULL };
+ int force = 0;
+ int verbose = 0;
+ int nofilters = 1;
+ int i;
+ int longindex;
+ int ret;
+ int e;
+
+ memset(&args, 0, sizeof(args));
+
+ while (1) {
+ int opt = getopt_long(ac, av, "d::s::m::fv", restripe_longopts,
+ &longindex);
+ if (opt < 0)
+ break;
+
+ switch (opt) {
+ case 'd':
+ nofilters = 0;
+ args.flags |= BTRFS_RESTRIPE_DATA;
+
+ if (parse_filters(optarg, &args.data))
+ return 1;
+ break;
+ case 's':
+ nofilters = 0;
+ args.flags |= BTRFS_RESTRIPE_SYSTEM;
+
+ if (parse_filters(optarg, &args.sys))
+ return 1;
+ break;
+ case 'm':
+ nofilters = 0;
+ args.flags |= BTRFS_RESTRIPE_METADATA;
+
+ if (parse_filters(optarg, &args.meta))
+ return 1;
+ break;
+ case 'f':
+ force = 1;
+ break;
+ case 'v':
+ verbose = 1;
+ break;
+ default:
+ fprintf(stderr, "Invalid arguments for restripe\n");
+ return 1;
+ }
+ }
+
+ if (ac - optind != 1) {
+ fprintf(stderr, "Invalid arguments for restripe\n");
+ return 1;
+ }
+
+ if (nofilters) {
+ /* relocate everything - no filters */
+ args.flags |= BTRFS_RESTRIPE_TYPE_MASK;
+ }
+
+ /* drange makes sense only when devid is set */
+ for (i = 0; ptrs[i]; i++) {
+ if ((ptrs[i]->flags & BTRFS_RESTRIPE_ARGS_DRANGE) &&
+ !(ptrs[i]->flags & BTRFS_RESTRIPE_ARGS_DEVID)) {
+ fprintf(stderr, "drange filter can be used only if "
+ "devid filter is used\n");
+ return 1;
+ }
+ }
+
+ /* soft makes sense only when convert for corresponding type is set */
+ for (i = 0; ptrs[i]; i++) {
+ if ((ptrs[i]->flags & BTRFS_RESTRIPE_ARGS_SOFT) &&
+ !(ptrs[i]->flags & BTRFS_RESTRIPE_ARGS_CONVERT)) {
+ fprintf(stderr, "'soft' option can be used only if "
+ "changing profiles\n");
+ return 1;
+ }
+ }
+
+ path = av[optind];
+ fd = open_file_or_dir(path);
+ if (fd < 0) {
+ fprintf(stderr, "ERROR: can't access to '%s'\n", path);
+ return 12;
+ }
+
+ if (force)
+ args.flags |= BTRFS_RESTRIPE_FORCE;
+ if (verbose)
+ dump_ioctl_restripe_args(&args);
+
+ ret = ioctl(fd, BTRFS_IOC_RESTRIPE, &args);
+ e = errno;
+ close(fd);
+
+ if (ret < 0) {
+ if (e == ECANCELED) {
+ fprintf(stderr, "restripe interrupted by user\n");
+ } else {
+ fprintf(stderr, "ERROR: error during restriping '%s' "
+ "- %s\n", path, strerror(e));
+ return 19;
+ }
+ }
+
+ return 0;
+}
+
+int do_restripe_cancel(int ac, char **av)
+{
+ int fd;
+ char *path = av[1];
+ int ret;
+ int e;
+
+ fd = open_file_or_dir(path);
+ if (fd < 0) {
+ fprintf(stderr, "ERROR: can't access to '%s'\n", path);
+ return 12;
+ }
+
+ ret = ioctl(fd, BTRFS_IOC_RESTRIPE_CTL, BTRFS_RESTRIPE_CTL_CANCEL);
+ e = errno;
+ close(fd);
+
+ if (ret < 0) {
+ fprintf(stderr, "ERROR: restripe cancel on '%s' failed - %s\n",
+ path, (e == ENOTCONN) ? "Not in progress" : strerror(e));
+ return 19;
+ }
+
+ return 0;
+}
+
+int do_restripe_pause(int ac, char **av)
+{
+ int fd;
+ char *path = av[1];
+ int ret;
+ int e;
+
+ fd = open_file_or_dir(path);
+ if (fd < 0) {
+ fprintf(stderr, "ERROR: can't access to '%s'\n", path);
+ return 12;
+ }
+
+ ret = ioctl(fd, BTRFS_IOC_RESTRIPE_CTL, BTRFS_RESTRIPE_CTL_PAUSE);
+ e = errno;
+ close(fd);
+
+ if (ret < 0) {
+ fprintf(stderr, "ERROR: restripe pause on '%s' failed - %s\n",
+ path, (e == ENOTCONN) ? "Not running" : strerror(e));
+ return 19;
+ }
+
+ return 0;
+}
+
+int do_restripe_resume(int ac, char **av)
+{
+ int fd;
+ char *path = av[1];
+ int ret;
+ int e;
+
+ fd = open_file_or_dir(path);
+ if (fd < 0) {
+ fprintf(stderr, "ERROR: can't access to '%s'\n", path);
+ return 12;
+ }
+
+ ret = ioctl(fd, BTRFS_IOC_RESTRIPE_CTL, BTRFS_RESTRIPE_CTL_RESUME);
+ e = errno;
+ close(fd);
+ if (ret < 0) {
+ if (e == ECANCELED) {
+ fprintf(stderr, "restripe interrupted by user\n");
+ } else if (e == ENOTCONN || e == EINPROGRESS) {
+ fprintf(stderr, "ERROR: restripe resume on '%s' "
+ "failed - %s\n", path,
+ (e == ENOTCONN) ? "Not in progress" :
+ "Already running");
+ return 19;
+ } else {
+ fprintf(stderr, "ERROR: error during restriping '%s' "
+ "- %s\n", path, strerror(e));
+ return 19;
+ }
+ }
+
+ return 0;
+}
+
+static struct option restripe_progress_longopts[] = {
+ { "verbose", 0, NULL, 'v' },
+ { 0, 0, 0, 0}
+};
+
+int do_restripe_progress(int ac, char **av)
+{
+ int fd;
+ char *path;
+ struct btrfs_ioctl_restripe_args args;
+ int verbose = 0;
+ int longindex;
+ int ret;
+ int e;
+
+ while (1) {
+ int opt = getopt_long(ac, av, "v", restripe_progress_longopts,
+ &longindex);
+ if (opt < 0)
+ break;
+
+ switch (opt) {
+ case 'v':
+ verbose = 1;
+ break;
+ default:
+ fprintf(stderr, "Invalid arguments for restripe "
+ "status\n");
+ return 1;
+ }
+ }
+
+ if (ac - optind != 1) {
+ fprintf(stderr, "Invalid arguments for restripe status\n");
+ return 1;
+ }
+
+ path = av[optind];
+ fd = open_file_or_dir(path);
+ if (fd < 0) {
+ fprintf(stderr, "ERROR: can't access to '%s'\n", path);
+ return 12;
+ }
+
+ ret = ioctl(fd, BTRFS_IOC_RESTRIPE_PROGRESS, &args);
+ e = errno;
+ close(fd);
+
+ if (ret < 0) {
+ fprintf(stderr, "ERROR: restripe status on '%s' failed - %s\n",
+ path, (e == ENOTCONN) ? "Not in progress" : strerror(e));
return 19;
}
+
+ if (args.state & BTRFS_RESTRIPE_ST_RUNNING) {
+ printf("Restripe on '%s' is running", path);
+ if (args.state & BTRFS_RESTRIPE_ST_CANCEL_REQ)
+ printf(", cancel requested\n");
+ else if (args.state & BTRFS_RESTRIPE_ST_PAUSE_REQ)
+ printf(", pause requested\n");
+ else
+ printf("\n");
+ } else {
+ printf("Restripe on '%s' is paused\n", path);
+ }
+
+ printf("%llu out of about %llu chunks restriped (%llu considered), "
+ "%3.f%% left\n", args.stat.completed, args.stat.expected,
+ args.stat.considered,
+ 100 * (1 - (float)args.stat.completed/args.stat.expected));
+
+ if (verbose)
+ dump_ioctl_restripe_args(&args);
+
return 0;
}
+
+static void dump_restripe_args(struct btrfs_restripe_args *args)
+{
+ if (args->flags & BTRFS_RESTRIPE_ARGS_CONVERT) {
+ printf("converting, target=%llu, soft is %s", args->target,
+ (args->flags & BTRFS_RESTRIPE_ARGS_SOFT) ? "on" : "off");
+ } else {
+ printf("balancing");
+ }
+
+ if (args->flags & BTRFS_RESTRIPE_ARGS_PROFILES)
+ printf(", profiles=%llu", args->profiles);
+ if (args->flags & BTRFS_RESTRIPE_ARGS_USAGE)
+ printf(", usage=%llu", args->usage);
+ if (args->flags & BTRFS_RESTRIPE_ARGS_DEVID)
+ printf(", devid=%llu", args->devid);
+ if (args->flags & BTRFS_RESTRIPE_ARGS_DRANGE)
+ printf(", drange=%llu..%llu", args->pstart, args->pend);
+ if (args->flags & BTRFS_RESTRIPE_ARGS_VRANGE)
+ printf(", vrange=%llu..%llu", args->vstart, args->vend);
+
+ printf("\n");
+}
+
+static void dump_ioctl_restripe_args(struct btrfs_ioctl_restripe_args *args)
+{
+ printf("Dumping filters: flags 0x%llx, state 0x%llx, force is %s\n",
+ args->flags, args->state,
+ (args->flags & BTRFS_RESTRIPE_FORCE) ? "on" : "off");
+ if (args->flags & BTRFS_RESTRIPE_DATA) {
+ printf(" DATA (flags 0x%llx): ", args->data.flags);
+ dump_restripe_args(&args->data);
+ }
+ if (args->flags & BTRFS_RESTRIPE_METADATA) {
+ printf(" METADATA (flags 0x%llx): ", args->meta.flags);
+ dump_restripe_args(&args->meta);
+ }
+ if (args->flags & BTRFS_RESTRIPE_SYSTEM) {
+ printf(" SYSTEM (flags 0x%llx): ", args->sys.flags);
+ dump_restripe_args(&args->sys);
+ }
+}
+
int do_remove_volume(int nargs, char **args)
{
diff --git a/btrfs_cmds.h b/btrfs_cmds.h
index ab722d4..de09b65 100644
--- a/btrfs_cmds.h
+++ b/btrfs_cmds.h
@@ -23,6 +23,11 @@ int do_defrag(int argc, char **argv);
int do_show_filesystem(int nargs, char **argv);
int do_add_volume(int nargs, char **args);
int do_balance(int nargs, char **argv);
+int do_restripe(int ac, char **av);
+int do_restripe_cancel(int ac, char **av);
+int do_restripe_pause(int ac, char **av);
+int do_restripe_resume(int ac, char **av);
+int do_restripe_progress(int ac, char **av);
int do_remove_volume(int nargs, char **args);
int do_scan(int nargs, char **argv);
int do_resize(int nargs, char **argv);
diff --git a/ctree.h b/ctree.h
index 61eb639..46bb860 100644
--- a/ctree.h
+++ b/ctree.h
@@ -60,6 +60,9 @@ struct btrfs_trans_handle;
#define BTRFS_CSUM_TREE_OBJECTID 7ULL
+/* for storing restripe params in the root tree */
+#define BTRFS_RESTRIPE_OBJECTID -4ULL
+
/* oprhan objectid for tracking unlinked/truncated files */
#define BTRFS_ORPHAN_OBJECTID -5ULL
@@ -651,6 +654,12 @@ struct btrfs_csum_item {
#define BTRFS_BLOCK_GROUP_DUP (1 << 5)
#define BTRFS_BLOCK_GROUP_RAID10 (1 << 6)
+/*
+ * to avoid troubles..
+ */
+#define BTRFS_AVAIL_ALLOC_BIT_SINGLE (1 << 7)
+#define BTRFS_BLOCK_GROUP_RESERVED (1 << 7)
+
struct btrfs_block_group_item {
__le64 used;
__le64 chunk_objectid;
diff --git a/ioctl.h b/ioctl.h
index bb7b9e0..6eb5d70 100644
--- a/ioctl.h
+++ b/ioctl.h
@@ -30,6 +30,45 @@ struct btrfs_ioctl_vol_args {
char name[BTRFS_PATH_NAME_MAX + 1];
};
+#define BTRFS_RESTRIPE_CTL_CANCEL 1
+#define BTRFS_RESTRIPE_CTL_PAUSE 2
+#define BTRFS_RESTRIPE_CTL_RESUME 3
+
+struct btrfs_restripe_args {
+ __u64 profiles;
+ __u64 usage;
+ __u64 devid;
+ __u64 pstart;
+ __u64 pend;
+ __u64 vstart;
+ __u64 vend;
+
+ __u64 target;
+
+ __u64 flags;
+
+ __u64 unused[8];
+} __attribute__ ((__packed__));
+
+struct btrfs_restripe_progress {
+ __u64 expected;
+ __u64 considered;
+ __u64 completed;
+};
+
+struct btrfs_ioctl_restripe_args {
+ __u64 flags;
+ __u64 state;
+
+ struct btrfs_restripe_args data;
+ struct btrfs_restripe_args sys;
+ struct btrfs_restripe_args meta;
+
+ struct btrfs_restripe_progress stat;
+
+ __u64 unused[72]; /* pad to 1k */
+};
+
struct btrfs_ioctl_search_key {
/* which root are we searching. 0 is the tree of tree roots */
__u64 tree_id;
@@ -176,4 +215,9 @@ struct btrfs_ioctl_space_args {
#define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, u64)
#define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
struct btrfs_ioctl_space_args)
+#define BTRFS_IOC_RESTRIPE _IOW(BTRFS_IOCTL_MAGIC, 32, \
+ struct btrfs_ioctl_restripe_args)
+#define BTRFS_IOC_RESTRIPE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
+#define BTRFS_IOC_RESTRIPE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
+ struct btrfs_ioctl_restripe_args)
#endif
diff --git a/print-tree.c b/print-tree.c
index ac575d5..14480d6 100644
--- a/print-tree.c
+++ b/print-tree.c
@@ -391,6 +391,9 @@ static void print_objectid(unsigned long long objectid, u8 type)
case BTRFS_CSUM_TREE_OBJECTID:
printf("CSUM_TREE");
break;
+ case BTRFS_RESTRIPE_OBJECTID:
+ printf("RESTRIPE");
+ break;
case BTRFS_ORPHAN_OBJECTID:
printf("ORPHAN");
break;
diff --git a/volumes.h b/volumes.h
index 93b0e48..5aaa61b 100644
--- a/volumes.h
+++ b/volumes.h
@@ -91,6 +91,48 @@ struct btrfs_multi_bio {
#define btrfs_multi_bio_size(n) (sizeof(struct btrfs_multi_bio) + \
(sizeof(struct btrfs_bio_stripe) * (n)))
+/*
+ * Restriper's general "type" filter. Shares bits with chunk type for
+ * simplicity, RESTRIPE prefix is used to avoid confusion.
+ */
+#define BTRFS_RESTRIPE_DATA (1ULL << 0)
+#define BTRFS_RESTRIPE_SYSTEM (1ULL << 1)
+#define BTRFS_RESTRIPE_METADATA (1ULL << 2)
+
+#define BTRFS_RESTRIPE_TYPE_MASK (BTRFS_RESTRIPE_DATA | \
+ BTRFS_RESTRIPE_SYSTEM | \
+ BTRFS_RESTRIPE_METADATA)
+
+#define BTRFS_RESTRIPE_FORCE (1ULL << 3)
+
+/*
+ * Restripe filters
+ */
+#define BTRFS_RESTRIPE_ARGS_PROFILES (1ULL << 0)
+#define BTRFS_RESTRIPE_ARGS_USAGE (1ULL << 1)
+#define BTRFS_RESTRIPE_ARGS_DEVID (1ULL << 2)
+#define BTRFS_RESTRIPE_ARGS_DRANGE (1ULL << 3)
+#define BTRFS_RESTRIPE_ARGS_VRANGE (1ULL << 4)
+
+/*
+ * Profile changing flags. When SOFT is set we won't relocate chunk if
+ * it already has the target profile (even though it may be
+ * half-filled).
+ */
+#define BTRFS_RESTRIPE_ARGS_CONVERT (1ULL << 8)
+#define BTRFS_RESTRIPE_ARGS_SOFT (1ULL << 9)
+
+/*
+ * Restripe state bits
+ */
+#define RESTRIPE_RUNNING 0
+#define RESTRIPE_CANCEL_REQ 1
+#define RESTRIPE_PAUSE_REQ 2
+
+#define BTRFS_RESTRIPE_ST_RUNNING (1ULL << RESTRIPE_RUNNING)
+#define BTRFS_RESTRIPE_ST_CANCEL_REQ (1ULL << RESTRIPE_CANCEL_REQ)
+#define BTRFS_RESTRIPE_ST_PAUSE_REQ (1ULL << RESTRIPE_PAUSE_REQ)
+
int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
struct btrfs_device *device,
u64 chunk_tree, u64 chunk_objectid,
--
1.7.5.4
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