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1 | /* |
2 | * glusterfs engine |
3 | * |
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4 | * common Glusterfs's gfapi interface |
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5 | * |
6 | */ |
7 | |
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8 | #include "gfapi.h" |
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9 | |
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10 | struct fio_option gfapi_options[] = { |
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11 | { |
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12 | .name = "volume", |
13 | .lname = "Glusterfs volume", |
14 | .type = FIO_OPT_STR_STORE, |
15 | .help = "Name of the Glusterfs volume", |
16 | .off1 = offsetof(struct gf_options, gf_vol), |
17 | .category = FIO_OPT_C_ENGINE, |
18 | .group = FIO_OPT_G_GFAPI, |
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19 | }, |
20 | { |
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21 | .name = "brick", |
22 | .lname = "Glusterfs brick name", |
23 | .type = FIO_OPT_STR_STORE, |
24 | .help = "Name of the Glusterfs brick to connect", |
25 | .off1 = offsetof(struct gf_options, gf_brick), |
26 | .category = FIO_OPT_C_ENGINE, |
27 | .group = FIO_OPT_G_GFAPI, |
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28 | }, |
29 | { |
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30 | .name = NULL, |
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31 | }, |
32 | }; |
33 | |
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34 | int fio_gf_setup(struct thread_data *td) |
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35 | { |
36 | int r = 0; |
37 | struct gf_data *g = NULL; |
38 | struct gf_options *opt = td->eo; |
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39 | struct stat sb = {0, }; |
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40 | |
41 | dprint(FD_IO, "fio setup\n"); |
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42 | |
43 | if (td->io_ops->data) |
44 | return 0; |
45 | |
46 | g = malloc(sizeof(struct gf_data)); |
47 | if (!g){ |
48 | log_err("malloc failed.\n"); |
49 | return -ENOMEM; |
50 | } |
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51 | g->fs = NULL; g->fd = NULL; g->aio_events = NULL; |
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52 | |
53 | g->fs = glfs_new (opt->gf_vol); |
54 | if (!g->fs){ |
55 | log_err("glfs_new failed.\n"); |
56 | goto cleanup; |
57 | } |
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58 | glfs_set_logging (g->fs, "/tmp/fio_gfapi.log", 7); |
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59 | /* default to tcp */ |
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60 | r = glfs_set_volfile_server(g->fs, "tcp", opt->gf_brick, 0); |
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61 | if (r){ |
62 | log_err("glfs_set_volfile_server failed.\n"); |
63 | goto cleanup; |
64 | } |
65 | r = glfs_init(g->fs); |
66 | if (r){ |
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67 | log_err("glfs_init failed. Is glusterd running on brick?\n"); |
68 | goto cleanup; |
69 | } |
70 | sleep(2); |
71 | r = glfs_lstat (g->fs, ".", &sb); |
72 | if (r){ |
73 | log_err("glfs_lstat failed.\n"); |
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74 | goto cleanup; |
75 | } |
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76 | dprint(FD_FILE, "fio setup %p\n", g->fs); |
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77 | td->io_ops->data = g; |
78 | cleanup: |
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79 | if (r){ |
80 | if (g){ |
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81 | if (g->fs){ |
82 | glfs_fini(g->fs); |
83 | } |
84 | free(g); |
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85 | td->io_ops->data = NULL; |
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86 | } |
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87 | } |
88 | return r; |
89 | } |
90 | |
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91 | void fio_gf_cleanup(struct thread_data *td) |
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92 | { |
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93 | struct gf_data *g = td->io_ops->data; |
94 | |
95 | if (g) { |
96 | if (g->aio_events) |
97 | free(g->aio_events); |
98 | if (g->fd) |
99 | glfs_close(g->fd); |
100 | if (g->fs) |
101 | glfs_fini(g->fs); |
102 | free(g); |
103 | td->io_ops->data = NULL; |
104 | } |
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105 | } |
106 | |
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107 | int fio_gf_get_file_size(struct thread_data *td, struct fio_file *f) |
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108 | { |
109 | struct stat buf; |
110 | int ret; |
111 | struct gf_data *g = td->io_ops->data; |
112 | |
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113 | dprint(FD_FILE, "get file size %s\n", f->file_name); |
114 | |
115 | if (!g || !g->fs) |
116 | { |
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117 | return 0; |
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118 | } |
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119 | if (fio_file_size_known(f)) |
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120 | return 0; |
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121 | |
122 | ret = glfs_lstat (g->fs, f->file_name, &buf); |
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123 | if (ret < 0){ |
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124 | log_err("glfs_lstat failed.\n"); |
125 | return ret; |
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126 | } |
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127 | |
128 | f->real_file_size = buf.st_size; |
129 | fio_file_set_size_known(f); |
130 | |
131 | return 0; |
132 | |
133 | } |
134 | |
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135 | int fio_gf_open_file(struct thread_data *td, struct fio_file *f) |
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136 | { |
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137 | |
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138 | int flags = 0; |
139 | int ret = 0; |
140 | struct gf_data *g = td->io_ops->data; |
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141 | struct stat sb = {0, }; |
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142 | |
143 | if (td_write(td)) { |
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144 | if (!read_only) |
145 | flags = O_RDWR; |
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146 | } else if (td_read(td)) { |
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147 | if (!read_only) |
148 | flags = O_RDWR; |
149 | else |
150 | flags = O_RDONLY; |
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151 | } |
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152 | dprint(FD_FILE, "fio file %s open mode %s td rw %s\n", f->file_name, |
153 | flags == O_RDONLY? "ro":"rw", td_read(td)? "read":"write"); |
154 | g->fd = glfs_creat(g->fs, f->file_name, flags, 0644); |
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155 | if (!g->fd){ |
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156 | log_err("glfs_creat failed.\n"); |
157 | ret = errno; |
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158 | } |
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159 | /* file for read doesn't exist or shorter than required, create/extend it */ |
160 | if (td_read(td)){ |
161 | if (glfs_lstat (g->fs, f->file_name, &sb) || sb.st_size < f->real_file_size){ |
162 | dprint(FD_FILE, "fio extend file %s from %ld to %ld\n", f->file_name, sb.st_size, f->real_file_size); |
163 | ret = glfs_ftruncate (g->fd, f->real_file_size); |
164 | if (ret){ |
165 | log_err("failed fio extend file %s to %ld\n", f->file_name, f->real_file_size); |
166 | }else{ |
167 | unsigned long long left; |
168 | unsigned int bs; |
169 | char *b; |
170 | int r; |
171 | |
172 | /* fill the file, copied from extend_file */ |
173 | b = malloc(td->o.max_bs[DDIR_WRITE]); |
174 | |
175 | left = f->real_file_size; |
176 | while (left && !td->terminate) { |
177 | bs = td->o.max_bs[DDIR_WRITE]; |
178 | if (bs > left) |
179 | bs = left; |
180 | |
181 | fill_io_buffer(td, b, bs, bs); |
182 | |
183 | r = glfs_write(g->fd, b, bs, 0); |
184 | dprint(FD_IO, "fio write %d of %ld file %s\n", r, f->real_file_size, f->file_name); |
185 | |
186 | if (r > 0) { |
187 | left -= r; |
188 | continue; |
189 | } else { |
190 | if (r < 0) { |
191 | int __e = errno; |
192 | |
193 | if (__e == ENOSPC) { |
194 | if (td->o.fill_device) |
195 | break; |
196 | log_info("fio: ENOSPC on laying out " |
197 | "file, stopping\n"); |
198 | break; |
199 | } |
200 | td_verror(td, errno, "write"); |
201 | } else |
202 | td_verror(td, EIO, "write"); |
203 | |
204 | break; |
205 | } |
206 | } |
207 | |
208 | if (b) free(b); |
209 | glfs_lseek(g->fd, 0, SEEK_SET); |
210 | |
211 | if (td->terminate) { |
212 | dprint(FD_FILE, "terminate unlink %s\n", f->file_name); |
213 | unlink(f->file_name); |
214 | } else if (td->o.create_fsync) { |
215 | if (glfs_fsync(g->fd) < 0) { |
216 | dprint(FD_FILE, "failed to sync, close %s\n", f->file_name); |
217 | td_verror(td, errno, "fsync"); |
218 | glfs_close(g->fd); |
219 | g->fd = NULL; |
220 | return 1; |
221 | } |
222 | } |
223 | } |
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224 | } |
225 | } |
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226 | #if defined(GFAPI_USE_FADVISE) |
227 | { |
228 | int r = 0; |
229 | if (td_random(td)){ |
230 | r = glfs_fadvise(g->fd, 0, f->real_file_size, POSIX_FADV_RANDOM); |
231 | }else{ |
232 | r = glfs_fadvise(g->fd, 0, f->real_file_size, POSIX_FADV_SEQUENTIAL); |
233 | } |
234 | if (r){ |
235 | dprint(FD_FILE, "fio %p fadvise %s status %d\n", g->fs, f->file_name, r); |
236 | } |
237 | } |
238 | #endif |
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239 | dprint(FD_FILE, "fio %p created %s\n", g->fs, f->file_name); |
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240 | f->fd = -1; |
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241 | f->shadow_fd = -1; |
242 | |
243 | return ret; |
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244 | } |
245 | |
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246 | int fio_gf_close_file(struct thread_data *td, struct fio_file *f) |
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247 | { |
248 | int ret = 0; |
249 | struct gf_data *g = td->io_ops->data; |
250 | |
251 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
252 | |
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253 | if (g){ |
254 | if (g->fd && glfs_close(g->fd) < 0) |
255 | ret = errno; |
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256 | |
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257 | if (g->fs) |
258 | glfs_fini(g->fs); |
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259 | |
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260 | g->fd = NULL; |
261 | free(g); |
262 | } |
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263 | td->io_ops->data = NULL; |
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264 | f->engine_data = 0; |
265 | |
266 | return ret; |
267 | } |
268 | |