/* XXX: llapi_xxx() functions return negative values upon failure */
-int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
- int stripe_count, int stripe_pattern)
+int llapi_layout_search_ost(__u32 ost, char *pname, char *fsname)
{
+ char ostname[MAX_OBD_NAME + 64];
+ char *pool_name = pname;
+ int rc = 0;
+
+ /**
+ * The current policy is that the pool does not have to exist at the
+ * setstripe time, see sanity-pfl/-flr tests.
+ * If this logic will change, re-enable it.
+ *
+ * if (pname && strlen(pname) == 0)
+ */
+ pool_name = NULL;
+
+ snprintf(ostname, sizeof(ostname), "%s-OST%04x_UUID",
+ fsname, ost);
+ rc = llapi_search_ost(fsname, pool_name, ostname);
+ if (rc <= 0) {
+ if (rc == 0)
+ rc = -ENODEV;
+
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "%s: cannot find OST %s in %s", __func__, ostname,
+ pool_name != NULL ? "pool" : "system");
+ return rc;
+ }
+
+ return 0;
+}
+
+/**
+ * Verify the setstripe parameters before using.
+ * This is a pair method for comp_args_to_layout()/llapi_layout_sanity_cb()
+ * when just 1 component or a non-PFL layout is given.
+ *
+ * \param[in] param stripe parameters
+ * \param[in] pool_name pool name
+ * \param[in] fsname lustre FS name
+ *
+ * \retval 0, success
+ * < 0, error code on failre
+ */
+static int llapi_stripe_param_verify(const struct llapi_stripe_param *param,
+ char **pool_name,
+ char *fsname)
+{
+ int count;
static int page_size;
int rc = 0;
page_size, LOV_MIN_STRIPE_SIZE);
}
}
- if (!llapi_stripe_size_is_aligned(stripe_size)) {
+ if (!llapi_stripe_size_is_aligned(param->lsp_stripe_size)) {
rc = -EINVAL;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: bad stripe_size %llu, must be an even multiple of %d bytes",
- (unsigned long long)stripe_size, page_size);
+ param->lsp_stripe_size, page_size);
goto out;
}
- if (!llapi_stripe_index_is_valid(stripe_offset)) {
+ if (!llapi_stripe_index_is_valid(param->lsp_stripe_offset)) {
rc = -EINVAL;
llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
- stripe_offset);
+ param->lsp_stripe_offset);
goto out;
}
- if (!llapi_stripe_count_is_valid(stripe_count)) {
+ if (llapi_stripe_size_is_too_big(param->lsp_stripe_size)) {
rc = -EINVAL;
- llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
- stripe_count);
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: stripe size '%llu' over 4GB limit",
+ param->lsp_stripe_size);
goto out;
}
- if (llapi_stripe_size_is_too_big(stripe_size)) {
+
+ count = param->lsp_stripe_count;
+ if (param->lsp_stripe_pattern == LOV_PATTERN_MDT) {
rc = -EINVAL;
llapi_error(LLAPI_MSG_ERROR, rc,
- "error: stripe size '%llu' over 4GB limit",
- (unsigned long long)stripe_size);
+ "Invalid pattern: %d, must be specified with -E\n",
+ param->lsp_stripe_pattern);
goto out;
+ } else {
+ if (!llapi_stripe_count_is_valid(count)) {
+ rc = -EINVAL;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Invalid stripe count %d\n", count);
+ goto out;
+ }
+ }
+
+ /* Make sure we have a good pool */
+ if (*pool_name != NULL) {
+ if (!llapi_pool_name_is_valid(pool_name, fsname)) {
+ rc = -EINVAL;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Pool '%s' is not on filesystem '%s'",
+ *pool_name, fsname);
+ goto out;
+ }
+
+ /* Make sure the pool exists and is non-empty */
+ rc = llapi_search_ost(fsname, *pool_name, NULL);
+ if (rc < 1) {
+ char *err = rc == 0 ? "has no OSTs" : "does not exist";
+
+ rc = -EINVAL;
+ llapi_error(LLAPI_MSG_ERROR, rc, "pool '%s.%s' %s",
+ fsname, *pool_name, err);
+ goto out;
+ }
+ rc = 0;
}
+ /* sanity check of target list */
+ if (param->lsp_is_specific) {
+ bool found = false;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ rc = llapi_layout_search_ost(param->lsp_osts[i],
+ *pool_name, fsname);
+ if (rc)
+ goto out;
+
+ /* Make sure stripe offset is in OST list. */
+ if (param->lsp_osts[i] == param->lsp_stripe_offset)
+ found = true;
+ }
+ if (!found) {
+ rc = -EINVAL;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "%s: stripe offset '%d' is not in the target list",
+ __func__, param->lsp_stripe_offset);
+ goto out;
+ }
+ } else if (param->lsp_stripe_offset != -1) {
+ rc = llapi_layout_search_ost(param->lsp_stripe_offset,
+ *pool_name, fsname);
+ if (rc)
+ goto out;
+ }
out:
errno = -rc;
return rc;
const struct llapi_stripe_param *param)
{
char fsname[MAX_OBD_NAME + 1] = { 0 };
- char *pool_name = param->lsp_pool;
struct lov_user_md *lum = NULL;
- size_t lum_size = sizeof(*lum);
+ char *pool_name = param->lsp_pool;
+ size_t lum_size;
int fd, rc;
/* Make sure we are on a Lustre file system */
}
/* Check if the stripe pattern is sane. */
- rc = llapi_stripe_limit_check(param->lsp_stripe_size,
- param->lsp_stripe_offset,
- param->lsp_stripe_count,
- param->lsp_stripe_pattern);
+ rc = llapi_stripe_param_verify(param, &pool_name, fsname);
if (rc != 0)
return rc;
- /* Make sure we have a good pool */
- if (pool_name != NULL) {
- /*
- * in case user gives the full pool name <fsname>.<poolname>,
- * strip the fsname
- */
- char *ptr = strchr(pool_name, '.');
-
- if (ptr != NULL) {
- *ptr = '\0';
- if (strcmp(pool_name, fsname) != 0) {
- *ptr = '.';
- llapi_err_noerrno(LLAPI_MSG_ERROR,
- "Pool '%s' is not on filesystem '%s'",
- pool_name, fsname);
- return -EINVAL;
- }
- pool_name = ptr + 1;
- }
-
- /* Make sure the pool exists and is non-empty */
- rc = llapi_search_ost(fsname, pool_name, NULL);
- if (rc < 1) {
- char *err = rc == 0 ? "has no OSTs" : "does not exist";
-
- llapi_err_noerrno(LLAPI_MSG_ERROR, "pool '%s.%s' %s",
- fsname, pool_name, err);
- return -EINVAL;
- }
-
- lum_size = sizeof(struct lov_user_md_v3);
- }
-
- /* sanity check of target list */
- if (param->lsp_is_specific) {
- char ostname[MAX_OBD_NAME + 64];
- bool found = false;
- int i;
-
- for (i = 0; i < param->lsp_stripe_count; i++) {
- snprintf(ostname, sizeof(ostname), "%s-OST%04x_UUID",
- fsname, param->lsp_osts[i]);
- rc = llapi_search_ost(fsname, pool_name, ostname);
- if (rc <= 0) {
- if (rc == 0)
- rc = -ENODEV;
-
- llapi_error(LLAPI_MSG_ERROR, rc,
- "%s: cannot find OST %s in %s",
- __func__, ostname,
- pool_name != NULL ?
- "pool" : "system");
- return rc;
- }
-
- /* Make sure stripe offset is in OST list. */
- if (param->lsp_osts[i] == param->lsp_stripe_offset)
- found = true;
- }
- if (!found) {
- llapi_error(LLAPI_MSG_ERROR, -EINVAL,
- "%s: stripe offset '%d' is not in the target list",
- __func__, param->lsp_stripe_offset);
- return -EINVAL;
- }
-
+ if (param->lsp_is_specific)
lum_size = lov_user_md_size(param->lsp_stripe_count,
LOV_USER_MAGIC_SPECIFIC);
- }
+ else if (pool_name)
+ lum_size = sizeof(struct lov_user_md_v3);
+ else
+ lum_size = sizeof(*lum);
lum = calloc(1, lum_size);
if (lum == NULL)
lmu->lum_stripe_count = param->lsp_stripe_count;
lmu->lum_stripe_offset = param->lsp_stripe_offset;
lmu->lum_hash_type = param->lsp_stripe_pattern;
+ lmu->lum_max_inherit = param->lsp_max_inherit;
+ lmu->lum_max_inherit_rr = param->lsp_max_inherit_rr;
if (param->lsp_pool != NULL)
strncpy(lmu->lum_pool_name, param->lsp_pool, LOV_MAXPOOLNAME);
if (param->lsp_is_specific) {
data.ioc_inlbuf2 = (char *)lmu;
data.ioc_inllen2 = lmu_size;
data.ioc_type = mode;
+ if (param->lsp_is_create)
+ /* borrow obdo1.o_flags to store this flag */
+ data.ioc_obdo1.o_flags = OBD_FL_OBDMDEXISTS;
rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc,
space, prefix,
(uintmax_t)lmm_oi_id(&lum->lmm_oi));
}
- if ((verbose & (VERBOSE_DETAIL | VERBOSE_DFID)) && !is_dir) {
+
+ if (verbose & (VERBOSE_DETAIL | VERBOSE_DFID)) {
__u64 seq;
__u32 oid;
__u32 ver;
if (verbose & ~VERBOSE_DFID)
llapi_printf(LLAPI_MSG_NORMAL, "%slmm_fid: ",
space);
- /*
- * This needs a bit of hand-holding since old 1.x lmm_oi
- * have { oi.oi_id = mds_inum, oi.oi_seq = 0 } and 2.x lmm_oi
- * have { oi.oi_id = mds_oid, oi.oi_seq = mds_seq } instead of
- * a real FID. Ideally the 2.x code would have stored this
- * like a FID with { oi_id = mds_seq, oi_seq = mds_oid } so the
- * ostid union lu_fid { f_seq = mds_seq, f_oid = mds_oid }
- * worked properly (especially since IGIF FIDs use mds_inum as
- * the FID SEQ), but unfortunately that didn't happen.
- *
- * Print it to look like an IGIF FID, even though the fields
- * are reversed on disk, so that it makes sense to userspace.
- *
- * Don't use ostid_id() and ostid_seq(), since they assume the
- * oi_fid fields are in the right order. This is why there are
- * separate lmm_oi_seq() and lmm_oi_id() routines for this.
- *
- * For newer layout types hopefully this will be a real FID.
- */
- seq = lmm_oi_seq(&lum->lmm_oi) == 0 ?
- lmm_oi_id(&lum->lmm_oi) : lmm_oi_seq(&lum->lmm_oi);
- oid = lmm_oi_seq(&lum->lmm_oi) == 0 ?
- 0 : (__u32)lmm_oi_id(&lum->lmm_oi);
- ver = (__u32)(lmm_oi_id(&lum->lmm_oi) >> 32);
+
+ if (is_dir) {
+ struct lu_fid dir_fid;
+
+ rc = llapi_path2fid(path, &dir_fid);
+ if (rc)
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Cannot determine directory fid.");
+
+ seq = dir_fid.f_seq;
+ oid = dir_fid.f_oid;
+ ver = dir_fid.f_ver;
+ } else {
+ /*
+ * This needs a bit of hand-holding since old 1.x
+ * lmm_oi have { oi.oi_id = mds_inum, oi.oi_seq = 0 }
+ * and 2.x lmm_oi have { oi.oi_id = mds_oid,
+ * oi.oi_seq = mds_seq } instead of a real FID.
+ * Ideally the 2.x code would have stored this like a
+ * FID with { oi_id = mds_seq, oi_seq = mds_oid } so
+ * the ostid union lu_fid { f_seq = mds_seq,
+ * f_oid = mds_oid } worked properly (especially since
+ * IGIF FIDs use mds_inum as the FID SEQ), but
+ * unfortunately that didn't happen.
+ *
+ * Print it to look like an IGIF FID, even though the
+ * fields are reversed on disk, so that it makes sense
+ * to userspace.
+ *
+ * Don't use ostid_id() and ostid_seq(), since they
+ * assume the oi_fid fields are in the right order.
+ * This is why there are separate lmm_oi_seq() and
+ * lmm_oi_id() routines for this.
+ *
+ * For newer layout types hopefully this will be a
+ * real FID.
+ */
+ seq = lmm_oi_seq(&lum->lmm_oi) == 0 ?
+ lmm_oi_id(&lum->lmm_oi) :
+ lmm_oi_seq(&lum->lmm_oi);
+ oid = lmm_oi_seq(&lum->lmm_oi) == 0 ?
+ 0 : (__u32)lmm_oi_id(&lum->lmm_oi);
+ ver = (__u32)(lmm_oi_id(&lum->lmm_oi) >> 32);
+ }
+
if (yaml)
llapi_printf(LLAPI_MSG_NORMAL, DFID_NOBRACE"\n",
(unsigned long long)seq, oid, ver);
if (flags & LMV_HASH_FLAG_LOST_LMV)
llapi_printf(LLAPI_MSG_NORMAL, ",lost_lmv");
- separator = "\n";
+ if (verbose & VERBOSE_HASH_TYPE && !yaml)
+ separator = " ";
+ else
+ separator = "\n";
+ }
+
+ if ((verbose & VERBOSE_INHERIT) && lum->lum_magic == LMV_USER_MAGIC) {
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+ if (verbose & ~VERBOSE_INHERIT)
+ llapi_printf(LLAPI_MSG_NORMAL, "lmv_max_inherit: ");
+ if (lum->lum_max_inherit == LMV_INHERIT_UNLIMITED)
+ llapi_printf(LLAPI_MSG_NORMAL, "-1");
+ else if (lum->lum_max_inherit == LMV_INHERIT_NONE)
+ llapi_printf(LLAPI_MSG_NORMAL, "0");
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%hhu",
+ lum->lum_max_inherit);
+ if (verbose & VERBOSE_INHERIT && !yaml)
+ separator = " ";
+ else
+ separator = "\n";
}
+ if ((verbose & VERBOSE_INHERIT_RR) &&
+ lum->lum_magic == LMV_USER_MAGIC &&
+ lum->lum_stripe_offset == LMV_OFFSET_DEFAULT) {
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+ if (verbose & ~VERBOSE_INHERIT_RR)
+ llapi_printf(LLAPI_MSG_NORMAL, "lmv_max_inherit_rr: ");
+ if (lum->lum_max_inherit_rr == LMV_INHERIT_RR_UNLIMITED)
+ llapi_printf(LLAPI_MSG_NORMAL, "-1");
+ else if (lum->lum_max_inherit_rr == LMV_INHERIT_RR_NONE)
+ llapi_printf(LLAPI_MSG_NORMAL, "0");
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%hhu",
+ lum->lum_max_inherit_rr);
+ if (verbose & VERBOSE_INHERIT_RR && !yaml)
+ separator = " ";
+ else
+ separator = "\n";
+ }
+
+ separator = "\n";
+
if (verbose & VERBOSE_OBJID && lum->lum_magic != LMV_USER_MAGIC) {
llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
if (lum->lum_stripe_count > 0)
}
}
-int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
+static int llapi_file_get_stripe1(const char *path, struct lov_user_md *lum)
{
const char *fname;
char *dname;
return rc;
}
+int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
+{
+ char *canon_path = NULL;
+ int rc, rc2;
+
+ rc = llapi_file_get_stripe1(path, lum);
+ if (!(rc == -ENOTTY || rc == -ENODATA))
+ goto out;
+
+ /* Handle failure due to symlinks by dereferencing path manually. */
+ canon_path = canonicalize_file_name(path);
+ if (canon_path == NULL)
+ goto out; /* Keep original rc. */
+
+ rc2 = llapi_file_get_stripe1(canon_path, lum);
+ if (rc2 < 0)
+ goto out; /* Keep original rc. */
+
+ rc = 0;
+out:
+ free(canon_path);
+
+ return rc;
+}
+
int llapi_file_lookup(int dirfd, const char *name)
{
struct obd_ioctl_data data = { 0 };
}
/**
- * Get a 64-bit value representing the version of file data pointed by fd.
- *
- * Each write or truncate, flushed on OST, will change this value. You can use
- * this value to verify if file data was modified. This only checks the file
- * data, not metadata.
- *
- * \param flags 0: no flush pages, usually used it the process has already
- * taken locks;
- * LL_DV_RD_FLUSH: OSTs will take LCK_PR to flush dirty pages
- * from clients;
- * LL_DV_WR_FLUSH: OSTs will take LCK_PW to flush all caching
- * pages from clients.
- *
- * \retval 0 on success.
- * \retval -errno on error.
- */
-int llapi_get_data_version(int fd, __u64 *data_version, __u64 flags)
-{
- int rc;
- struct ioc_data_version idv;
-
- idv.idv_flags = (__u32)flags;
-
- rc = ioctl(fd, LL_IOC_DATA_VERSION, &idv);
- if (rc)
- rc = -errno;
- else
- *data_version = idv.idv_version;
-
- return rc;
-}
-
-/**
* Flush cached pages from all clients.
*
* \param fd File descriptor
return llapi_get_data_version(fd, &dv, LL_DV_WR_FLUSH);
}
-/*
- * Fetch layout version from OST objects. Layout version on OST objects are
- * only set when the file is a mirrored file AND after the file has been
- * written at least once.
- *
- * It actually fetches the least layout version from the objects.
- */
-int llapi_get_ost_layout_version(int fd, __u32 *layout_version)
-{
- int rc;
- struct ioc_data_version idv = { 0 };
-
- rc = ioctl(fd, LL_IOC_DATA_VERSION, &idv);
- if (rc)
- rc = -errno;
- else
- *layout_version = idv.idv_layout_version;
-
- return rc;
-}
-
-/*
- * Create a file without any name and open it for read/write
- *
- * - file is created as if it were a standard file in the given \a directory
- * - file does not appear in \a directory and mtime does not change because
- * the filename is handled specially by the Lustre MDS.
- * - file is destroyed at final close
- *
- * \param[in] directory directory from which to inherit layout/MDT idx
- * \param[in] mdt_idx MDT index on which the file is created,
- * \a idx == -1 means no specific MDT is requested
- * \param[in] mode standard open(2) mode
- * \param[in] stripe_param stripe parameters. May be NULL.
- *
- * \retval a file descriptor on success.
- * \retval -errno on error.
- */
-int llapi_create_volatile_param(const char *directory, int mdt_idx,
- int open_flags, mode_t mode,
- const struct llapi_stripe_param *stripe_param)
-{
- char file_path[PATH_MAX];
- int saved_errno = errno;
- int fd;
- unsigned int rnumber;
- int rc;
-
- do {
- rnumber = random();
- if (mdt_idx == -1)
- rc = snprintf(file_path, sizeof(file_path),
- "%s/" LUSTRE_VOLATILE_HDR "::%.4X",
- directory, rnumber);
- else
- rc = snprintf(file_path, sizeof(file_path),
- "%s/" LUSTRE_VOLATILE_HDR ":%.4X:%.4X",
- directory, mdt_idx, rnumber);
-
- if (rc < 0 || rc >= sizeof(file_path))
- return -ENAMETOOLONG;
-
- /*
- * Either open O_WRONLY or O_RDWR, creating RDONLY
- * is non-sensical here
- */
- if ((open_flags & O_ACCMODE) == O_RDONLY)
- open_flags = O_RDWR | (open_flags & ~O_ACCMODE);
-
- open_flags |= O_CREAT | O_EXCL | O_NOFOLLOW;
-
- if (stripe_param != NULL) {
- fd = llapi_file_open_param(file_path, open_flags,
- mode, stripe_param);
- if (fd < 0)
- rc = fd;
- } else {
- fd = open(file_path, open_flags, mode);
- if (fd < 0)
- rc = -errno;
- }
- } while (fd < 0 && rc == -EEXIST);
-
- if (fd < 0) {
- llapi_error(LLAPI_MSG_ERROR, rc,
- "Cannot create volatile file '%s' in '%s'",
- file_path + strlen(directory) + 1 +
- LUSTRE_VOLATILE_HDR_LEN,
- directory);
- return rc;
- }
-
- /*
- * Unlink file in case this wasn't a Lustre filesystem and the magic
- * volatile filename wasn't handled as intended. The effect is the
- * same. If volatile open was supported then we expect unlink() to
- * return -ENOENT.
- */
- (void)unlink(file_path);
-
- /*
- * Since we are returning successfully we restore errno (and
- * mask out possible EEXIST from open() and ENOENT from unlink().
- */
- errno = saved_errno;
-
- return fd;
-}
-
-/*
- * Create a file without any name open it for read/write
- *
- * - file is created as if it were a standard file in the given \a directory
- * - file does not appear in \a directory and mtime does not change because
- * the filename is handled specially by the Lustre MDS.
- * - file is removed at final close
- * - file modes are rw------- since it doesn't make sense to have a read-only
- * or write-only file that cannot be opened again.
- * - if user wants another mode it must use fchmod() on the open file, no
- * security problems arise because it cannot be opened by another process.
- *
- * \param[in] directory directory from which to inherit layout/MDT idx
- * \param[in] idx MDT index on which the file is created,
- * \a idx == -1 means no specific MDT is requested
- * \param[in] open_flags standard open(2) flags
- *
- * \retval a file descriptor on success.
- * \retval -errno on error.
- */
-int llapi_create_volatile_idx(const char *directory, int mdt_idx,
- int open_flags)
-{
- return llapi_create_volatile_param(directory, mdt_idx, open_flags,
- S_IRUSR | S_IWUSR, NULL);
-}
-
-/**
- * Swap the layouts between 2 file descriptors
- * the 2 files must be open for writing
- * first fd received the ioctl, second fd is passed as arg
- * this is assymetric but avoid use of root path for ioctl
- */
-int llapi_fswap_layouts_grouplock(int fd1, int fd2, __u64 dv1, __u64 dv2,
- int gid, __u64 flags)
-{
- struct lustre_swap_layouts lsl;
- struct stat st1;
- struct stat st2;
- int rc;
-
- if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
- rc = fstat(fd1, &st1);
- if (rc < 0)
- return -errno;
-
- rc = fstat(fd2, &st2);
- if (rc < 0)
- return -errno;
- }
- lsl.sl_fd = fd2;
- lsl.sl_flags = flags;
- lsl.sl_gid = gid;
- lsl.sl_dv1 = dv1;
- lsl.sl_dv2 = dv2;
- rc = ioctl(fd1, LL_IOC_LOV_SWAP_LAYOUTS, &lsl);
- if (rc < 0)
- return -errno;
-
- if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
- struct timeval tv1[2];
- struct timeval tv2[2];
-
- memset(tv1, 0, sizeof(tv1));
- memset(tv2, 0, sizeof(tv2));
-
- if (flags & SWAP_LAYOUTS_KEEP_ATIME) {
- tv1[0].tv_sec = st1.st_atime;
- tv2[0].tv_sec = st2.st_atime;
- } else {
- tv1[0].tv_sec = st2.st_atime;
- tv2[0].tv_sec = st1.st_atime;
- }
-
- if (flags & SWAP_LAYOUTS_KEEP_MTIME) {
- tv1[1].tv_sec = st1.st_mtime;
- tv2[1].tv_sec = st2.st_mtime;
- } else {
- tv1[1].tv_sec = st2.st_mtime;
- tv2[1].tv_sec = st1.st_mtime;
- }
-
- rc = futimes(fd1, tv1);
- if (rc < 0)
- return -errno;
-
- rc = futimes(fd2, tv2);
- if (rc < 0)
- return -errno;
- }
-
- return 0;
-}
-
-int llapi_fswap_layouts(int fd1, int fd2, __u64 dv1, __u64 dv2, __u64 flags)
-{
- int rc;
- int grp_id;
-
- do
- grp_id = random();
- while (grp_id == 0);
-
- rc = llapi_fswap_layouts_grouplock(fd1, fd2, dv1, dv2, grp_id, flags);
- if (rc < 0)
- return rc;
-
- return 0;
-}
-
-/**
- * Swap the layouts between 2 files
- * the 2 files are open in write
- */
-int llapi_swap_layouts(const char *path1, const char *path2,
- __u64 dv1, __u64 dv2, __u64 flags)
-{
- int fd1, fd2, rc;
-
- fd1 = open(path1, O_WRONLY | O_LOV_DELAY_CREATE);
- if (fd1 < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc,
- "error: cannot open '%s' for write", path1);
- goto out;
- }
-
- fd2 = open(path2, O_WRONLY | O_LOV_DELAY_CREATE);
- if (fd2 < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc,
- "error: cannot open '%s' for write", path2);
- goto out_close;
- }
-
- rc = llapi_fswap_layouts(fd1, fd2, dv1, dv2, flags);
- if (rc < 0)
- llapi_error(LLAPI_MSG_ERROR, rc,
- "error: cannot swap layout between '%s' and '%s'",
- path1, path2);
-
- close(fd2);
-out_close:
- close(fd1);
-out:
- return rc;
-}
-
-/**
- * Take group lock.
- *
- * \param fd File to lock.
- * \param gid Group Identifier.
- *
- * \retval 0 on success.
- * \retval -errno on failure.
- */
-int llapi_group_lock(int fd, int gid)
-{
- int rc;
-
- rc = ioctl(fd, LL_IOC_GROUP_LOCK, gid);
- if (rc < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "cannot get group lock");
- }
- return rc;
-}
-
-/**
- * Put group lock.
- *
- * \param fd File to unlock.
- * \param gid Group Identifier.
- *
- * \retval 0 on success.
- * \retval -errno on failure.
- */
-int llapi_group_unlock(int fd, int gid)
-{
- int rc;
-
- rc = ioctl(fd, LL_IOC_GROUP_UNLOCK, gid);
- if (rc < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "cannot put group lock");
- }
- return rc;
-}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff