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authorBoaz Harrosh <bharrosh@panasas.com>2009-11-08 07:54:08 -0500
committerBoaz Harrosh <bharrosh@panasas.com>2009-12-10 02:59:22 -0500
commit06886a5a3dc5a5abe0a4d257c26317bde7047be8 (patch)
tree858ac56e120c0473d764fc64a2660e6d79729c8c
parent8ce9bdd1fbe962933736d7977e972972cd5d754c (diff)
exofs: Move all operations to an io_engine
In anticipation for multi-device operations, we separate osd operations into an abstract I/O API. Currently only one device is used but later when adding more devices, we will drive all devices in parallel according to a "data_map" that describes how data is arranged on multiple devices. The file system level operates, like before, as if there is one object (inode-number) and an i_size. The io engine will split this to the same object-number but on multiple device. At first we introduce Mirror (raid 1) layout. But at the final outcome we intend to fully implement the pNFS-Objects data-map, including raid 0,4,5,6 over mirrored devices, over multiple device-groups. And more. See: http://tools.ietf.org/html/draft-ietf-nfsv4-pnfs-obj-12 * Define an io_state based API for accessing osd storage devices in an abstract way. Usage: First a caller allocates an io state with: exofs_get_io_state(struct exofs_sb_info *sbi, struct exofs_io_state** ios); Then calles one of: exofs_sbi_create(struct exofs_io_state *ios); exofs_sbi_remove(struct exofs_io_state *ios); exofs_sbi_write(struct exofs_io_state *ios); exofs_sbi_read(struct exofs_io_state *ios); exofs_oi_truncate(struct exofs_i_info *oi, u64 new_len); And when done exofs_put_io_state(struct exofs_io_state *ios); * Convert all source files to use this new API * Convert from bio_alloc to bio_kmalloc * In io engine we make use of the now fixed osd_req_decode_sense There are no functional changes or on disk additions after this patch. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Diffstat
-rw-r--r--fs/exofs/common.h18
-rw-r--r--fs/exofs/exofs.h87
-rw-r--r--fs/exofs/inode.c383
-rw-r--r--fs/exofs/ios.c386
-rw-r--r--fs/exofs/super.c120
5 files changed, 644 insertions, 350 deletions
diff --git a/fs/exofs/common.h b/fs/exofs/common.h
index c6718e4817fe..ce1c71692599 100644
--- a/fs/exofs/common.h
+++ b/fs/exofs/common.h
@@ -155,22 +155,4 @@ enum {
155 (((name_len) + offsetof(struct exofs_dir_entry, name) + \ 155 (((name_len) + offsetof(struct exofs_dir_entry, name) + \
156 EXOFS_DIR_ROUND) & ~EXOFS_DIR_ROUND) 156 EXOFS_DIR_ROUND) & ~EXOFS_DIR_ROUND)
157 157
158/*************************
159 * function declarations *
160 *************************/
161/* osd.c */
162void exofs_make_credential(u8 cred_a[OSD_CAP_LEN],
163 const struct osd_obj_id *obj);
164
165int exofs_check_ok_resid(struct osd_request *or, u64 *in_resid, u64 *out_resid);
166static inline int exofs_check_ok(struct osd_request *or)
167{
168 return exofs_check_ok_resid(or, NULL, NULL);
169}
170int exofs_sync_op(struct osd_request *or, int timeout, u8 *cred);
171int exofs_async_op(struct osd_request *or,
172 osd_req_done_fn *async_done, void *caller_context, u8 *cred);
173
174int extract_attr_from_req(struct osd_request *or, struct osd_attr *attr);
175
176#endif /*ifndef __EXOFS_COM_H__*/ 158#endif /*ifndef __EXOFS_COM_H__*/
diff --git a/fs/exofs/exofs.h b/fs/exofs/exofs.h
index 5ec72e020b22..2e08859a89e8 100644
--- a/fs/exofs/exofs.h
+++ b/fs/exofs/exofs.h
@@ -30,14 +30,13 @@
30 * along with exofs; if not, write to the Free Software 30 * along with exofs; if not, write to the Free Software
31 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 31 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
32 */ 32 */
33#ifndef __EXOFS_H__
34#define __EXOFS_H__
33 35
34#include <linux/fs.h> 36#include <linux/fs.h>
35#include <linux/time.h> 37#include <linux/time.h>
36#include "common.h" 38#include "common.h"
37 39
38#ifndef __EXOFS_H__
39#define __EXOFS_H__
40
41#define EXOFS_ERR(fmt, a...) printk(KERN_ERR "exofs: " fmt, ##a) 40#define EXOFS_ERR(fmt, a...) printk(KERN_ERR "exofs: " fmt, ##a)
42 41
43#ifdef CONFIG_EXOFS_DEBUG 42#ifdef CONFIG_EXOFS_DEBUG
@@ -56,6 +55,7 @@
56 */ 55 */
57struct exofs_sb_info { 56struct exofs_sb_info {
58 struct osd_dev *s_dev; /* returned by get_osd_dev */ 57 struct osd_dev *s_dev; /* returned by get_osd_dev */
58 struct exofs_fscb s_fscb; /* Written often, pre-allocate*/
59 osd_id s_pid; /* partition ID of file system*/ 59 osd_id s_pid; /* partition ID of file system*/
60 int s_timeout; /* timeout for OSD operations */ 60 int s_timeout; /* timeout for OSD operations */
61 uint64_t s_nextid; /* highest object ID used */ 61 uint64_t s_nextid; /* highest object ID used */
@@ -79,6 +79,50 @@ struct exofs_i_info {
79 struct inode vfs_inode; /* normal in-memory inode */ 79 struct inode vfs_inode; /* normal in-memory inode */
80}; 80};
81 81
82static inline osd_id exofs_oi_objno(struct exofs_i_info *oi)
83{
84 return oi->vfs_inode.i_ino + EXOFS_OBJ_OFF;
85}
86
87struct exofs_io_state;
88typedef void (*exofs_io_done_fn)(struct exofs_io_state *or, void *private);
89
90struct exofs_io_state {
91 struct kref kref;
92
93 void *private;
94 exofs_io_done_fn done;
95
96 struct exofs_sb_info *sbi;
97 struct osd_obj_id obj;
98 u8 *cred;
99
100 /* Global read/write IO*/
101 loff_t offset;
102 unsigned long length;
103 void *kern_buff;
104 struct bio *bio;
105
106 /* Attributes */
107 unsigned in_attr_len;
108 struct osd_attr *in_attr;
109 unsigned out_attr_len;
110 struct osd_attr *out_attr;
111
112 /* Variable array of size numdevs */
113 unsigned numdevs;
114 struct exofs_per_dev_state {
115 struct osd_request *or;
116 struct bio *bio;
117 } per_dev[];
118};
119
120static inline unsigned exofs_io_state_size(unsigned numdevs)
121{
122 return sizeof(struct exofs_io_state) +
123 sizeof(struct exofs_per_dev_state) * numdevs;
124}
125
82/* 126/*
83 * our inode flags 127 * our inode flags
84 */ 128 */
@@ -130,6 +174,42 @@ static inline struct exofs_i_info *exofs_i(struct inode *inode)
130/************************* 174/*************************
131 * function declarations * 175 * function declarations *
132 *************************/ 176 *************************/
177
178/* ios.c */
179void exofs_make_credential(u8 cred_a[OSD_CAP_LEN],
180 const struct osd_obj_id *obj);
181int exofs_read_kern(struct osd_dev *od, u8 *cred, struct osd_obj_id *obj,
182 u64 offset, void *p, unsigned length);
183
184int exofs_get_io_state(struct exofs_sb_info *sbi, struct exofs_io_state** ios);
185void exofs_put_io_state(struct exofs_io_state *ios);
186
187int exofs_check_io(struct exofs_io_state *ios, u64 *resid);
188
189int exofs_sbi_create(struct exofs_io_state *ios);
190int exofs_sbi_remove(struct exofs_io_state *ios);
191int exofs_sbi_write(struct exofs_io_state *ios);
192int exofs_sbi_read(struct exofs_io_state *ios);
193
194int extract_attr_from_ios(struct exofs_io_state *ios, struct osd_attr *attr);
195
196int exofs_oi_truncate(struct exofs_i_info *oi, u64 new_len);
197static inline int exofs_oi_write(struct exofs_i_info *oi,
198 struct exofs_io_state *ios)
199{
200 ios->obj.id = exofs_oi_objno(oi);
201 ios->cred = oi->i_cred;
202 return exofs_sbi_write(ios);
203}
204
205static inline int exofs_oi_read(struct exofs_i_info *oi,
206 struct exofs_io_state *ios)
207{
208 ios->obj.id = exofs_oi_objno(oi);
209 ios->cred = oi->i_cred;
210 return exofs_sbi_read(ios);
211}
212
133/* inode.c */ 213/* inode.c */
134void exofs_truncate(struct inode *inode); 214void exofs_truncate(struct inode *inode);
135int exofs_setattr(struct dentry *, struct iattr *); 215int exofs_setattr(struct dentry *, struct iattr *);
@@ -169,6 +249,7 @@ extern const struct file_operations exofs_file_operations;
169 249
170/* inode.c */ 250/* inode.c */
171extern const struct address_space_operations exofs_aops; 251extern const struct address_space_operations exofs_aops;
252extern const struct osd_attr g_attr_logical_length;
172 253
173/* namei.c */ 254/* namei.c */
174extern const struct inode_operations exofs_dir_inode_operations; 255extern const struct inode_operations exofs_dir_inode_operations;
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index 7bc71a7d30a8..7578950fd135 100644
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -37,17 +37,18 @@
37 37
38#include "exofs.h" 38#include "exofs.h"
39 39
40#ifdef CONFIG_EXOFS_DEBUG
41# define EXOFS_DEBUG_OBJ_ISIZE 1
42#endif
43
44#define EXOFS_DBGMSG2(M...) do {} while (0) 40#define EXOFS_DBGMSG2(M...) do {} while (0)
45 41
42enum { BIO_MAX_PAGES_KMALLOC =
43 (PAGE_SIZE - sizeof(struct bio)) / sizeof(struct bio_vec),
44};
45
46struct page_collect { 46struct page_collect {
47 struct exofs_sb_info *sbi; 47 struct exofs_sb_info *sbi;
48 struct request_queue *req_q; 48 struct request_queue *req_q;
49 struct inode *inode; 49 struct inode *inode;
50 unsigned expected_pages; 50 unsigned expected_pages;
51 struct exofs_io_state *ios;
51 52
52 struct bio *bio; 53 struct bio *bio;
53 unsigned nr_pages; 54 unsigned nr_pages;
@@ -56,7 +57,7 @@ struct page_collect {
56}; 57};
57 58
58static void _pcol_init(struct page_collect *pcol, unsigned expected_pages, 59static void _pcol_init(struct page_collect *pcol, unsigned expected_pages,
59 struct inode *inode) 60 struct inode *inode)
60{ 61{
61 struct exofs_sb_info *sbi = inode->i_sb->s_fs_info; 62 struct exofs_sb_info *sbi = inode->i_sb->s_fs_info;
62 63
@@ -65,13 +66,11 @@ static void _pcol_init(struct page_collect *pcol, unsigned expected_pages,
65 pcol->inode = inode; 66 pcol->inode = inode;
66 pcol->expected_pages = expected_pages; 67 pcol->expected_pages = expected_pages;
67 68
69 pcol->ios = NULL;
68 pcol->bio = NULL; 70 pcol->bio = NULL;
69 pcol->nr_pages = 0; 71 pcol->nr_pages = 0;
70 pcol->length = 0; 72 pcol->length = 0;
71 pcol->pg_first = -1; 73 pcol->pg_first = -1;
72
73 EXOFS_DBGMSG("_pcol_init ino=0x%lx expected_pages=%u\n", inode->i_ino,
74 expected_pages);
75} 74}
76 75
77static void _pcol_reset(struct page_collect *pcol) 76static void _pcol_reset(struct page_collect *pcol)
@@ -82,35 +81,49 @@ static void _pcol_reset(struct page_collect *pcol)
82 pcol->nr_pages = 0; 81 pcol->nr_pages = 0;
83 pcol->length = 0; 82 pcol->length = 0;
84 pcol->pg_first = -1; 83 pcol->pg_first = -1;
85 EXOFS_DBGMSG("_pcol_reset ino=0x%lx expected_pages=%u\n", 84 pcol->ios = NULL;
86 pcol->inode->i_ino, pcol->expected_pages);
87 85
88 /* this is probably the end of the loop but in writes 86 /* this is probably the end of the loop but in writes
89 * it might not end here. don't be left with nothing 87 * it might not end here. don't be left with nothing
90 */ 88 */
91 if (!pcol->expected_pages) 89 if (!pcol->expected_pages)
92 pcol->expected_pages = 128; 90 pcol->expected_pages = BIO_MAX_PAGES_KMALLOC;
93} 91}
94 92
95static int pcol_try_alloc(struct page_collect *pcol) 93static int pcol_try_alloc(struct page_collect *pcol)
96{ 94{
97 int pages = min_t(unsigned, pcol->expected_pages, BIO_MAX_PAGES); 95 int pages = min_t(unsigned, pcol->expected_pages,
96 BIO_MAX_PAGES_KMALLOC);
97
98 if (!pcol->ios) { /* First time allocate io_state */
99 int ret = exofs_get_io_state(pcol->sbi, &pcol->ios);
100
101 if (ret)
102 return ret;
103 }
98 104
99 for (; pages; pages >>= 1) { 105 for (; pages; pages >>= 1) {
100 pcol->bio = bio_alloc(GFP_KERNEL, pages); 106 pcol->bio = bio_kmalloc(GFP_KERNEL, pages);
101 if (likely(pcol->bio)) 107 if (likely(pcol->bio))
102 return 0; 108 return 0;
103 } 109 }
104 110
105 EXOFS_ERR("Failed to kcalloc expected_pages=%u\n", 111 EXOFS_ERR("Failed to bio_kmalloc expected_pages=%u\n",
106 pcol->expected_pages); 112 pcol->expected_pages);
107 return -ENOMEM; 113 return -ENOMEM;
108} 114}
109 115
110static void pcol_free(struct page_collect *pcol) 116static void pcol_free(struct page_collect *pcol)
111{ 117{
112 bio_put(pcol->bio); 118 if (pcol->bio) {
113 pcol->bio = NULL; 119 bio_put(pcol->bio);
120 pcol->bio = NULL;
121 }
122
123 if (pcol->ios) {
124 exofs_put_io_state(pcol->ios);
125 pcol->ios = NULL;
126 }
114} 127}
115 128
116static int pcol_add_page(struct page_collect *pcol, struct page *page, 129static int pcol_add_page(struct page_collect *pcol, struct page *page,
@@ -163,22 +176,17 @@ static void update_write_page(struct page *page, int ret)
163/* Called at the end of reads, to optionally unlock pages and update their 176/* Called at the end of reads, to optionally unlock pages and update their
164 * status. 177 * status.
165 */ 178 */
166static int __readpages_done(struct osd_request *or, struct page_collect *pcol, 179static int __readpages_done(struct page_collect *pcol, bool do_unlock)
167 bool do_unlock)
168{ 180{
169 struct bio_vec *bvec; 181 struct bio_vec *bvec;
170 int i; 182 int i;
171 u64 resid; 183 u64 resid;
172 u64 good_bytes; 184 u64 good_bytes;
173 u64 length = 0; 185 u64 length = 0;
174 int ret = exofs_check_ok_resid(or, &resid, NULL); 186 int ret = exofs_check_io(pcol->ios, &resid);
175
176 osd_end_request(or);
177 187
178 if (likely(!ret)) 188 if (likely(!ret))
179 good_bytes = pcol->length; 189 good_bytes = pcol->length;
180 else if (!resid)
181 good_bytes = 0;
182 else 190 else
183 good_bytes = pcol->length - resid; 191 good_bytes = pcol->length - resid;
184 192
@@ -216,13 +224,13 @@ static int __readpages_done(struct osd_request *or, struct page_collect *pcol,
216} 224}
217 225
218/* callback of async reads */ 226/* callback of async reads */
219static void readpages_done(struct osd_request *or, void *p) 227static void readpages_done(struct exofs_io_state *ios, void *p)
220{ 228{
221 struct page_collect *pcol = p; 229 struct page_collect *pcol = p;
222 230
223 __readpages_done(or, pcol, true); 231 __readpages_done(pcol, true);
224 atomic_dec(&pcol->sbi->s_curr_pending); 232 atomic_dec(&pcol->sbi->s_curr_pending);
225 kfree(p); 233 kfree(pcol);
226} 234}
227 235
228static void _unlock_pcol_pages(struct page_collect *pcol, int ret, int rw) 236static void _unlock_pcol_pages(struct page_collect *pcol, int ret, int rw)
@@ -240,17 +248,13 @@ static void _unlock_pcol_pages(struct page_collect *pcol, int ret, int rw)
240 248
241 unlock_page(page); 249 unlock_page(page);
242 } 250 }
243 pcol_free(pcol);
244} 251}
245 252
246static int read_exec(struct page_collect *pcol, bool is_sync) 253static int read_exec(struct page_collect *pcol, bool is_sync)
247{ 254{
248 struct exofs_i_info *oi = exofs_i(pcol->inode); 255 struct exofs_i_info *oi = exofs_i(pcol->inode);
249 struct osd_obj_id obj = {pcol->sbi->s_pid, 256 struct exofs_io_state *ios = pcol->ios;
250 pcol->inode->i_ino + EXOFS_OBJ_OFF};
251 struct osd_request *or = NULL;
252 struct page_collect *pcol_copy = NULL; 257 struct page_collect *pcol_copy = NULL;
253 loff_t i_start = pcol->pg_first << PAGE_CACHE_SHIFT;
254 int ret; 258 int ret;
255 259
256 if (!pcol->bio) 260 if (!pcol->bio)
@@ -259,17 +263,13 @@ static int read_exec(struct page_collect *pcol, bool is_sync)
259 /* see comment in _readpage() about sync reads */ 263 /* see comment in _readpage() about sync reads */
260 WARN_ON(is_sync && (pcol->nr_pages != 1)); 264 WARN_ON(is_sync && (pcol->nr_pages != 1));
261 265
262 or = osd_start_request(pcol->sbi->s_dev, GFP_KERNEL); 266 ios->bio = pcol->bio;
263 if (unlikely(!or)) { 267 ios->length = pcol->length;
264 ret = -ENOMEM; 268 ios->offset = pcol->pg_first << PAGE_CACHE_SHIFT;
265 goto err;
266 }
267
268 osd_req_read(or, &obj, i_start, pcol->bio, pcol->length);
269 269
270 if (is_sync) { 270 if (is_sync) {
271 exofs_sync_op(or, pcol->sbi->s_timeout, oi->i_cred); 271 exofs_oi_read(oi, pcol->ios);
272 return __readpages_done(or, pcol, false); 272 return __readpages_done(pcol, false);
273 } 273 }
274 274
275 pcol_copy = kmalloc(sizeof(*pcol_copy), GFP_KERNEL); 275 pcol_copy = kmalloc(sizeof(*pcol_copy), GFP_KERNEL);
@@ -279,14 +279,16 @@ static int read_exec(struct page_collect *pcol, bool is_sync)
279 } 279 }
280 280
281 *pcol_copy = *pcol; 281 *pcol_copy = *pcol;
282 ret = exofs_async_op(or, readpages_done, pcol_copy, oi->i_cred); 282 ios->done = readpages_done;
283 ios->private = pcol_copy;
284 ret = exofs_oi_read(oi, ios);
283 if (unlikely(ret)) 285 if (unlikely(ret))
284 goto err; 286 goto err;
285 287
286 atomic_inc(&pcol->sbi->s_curr_pending); 288 atomic_inc(&pcol->sbi->s_curr_pending);
287 289
288 EXOFS_DBGMSG("read_exec obj=0x%llx start=0x%llx length=0x%lx\n", 290 EXOFS_DBGMSG("read_exec obj=0x%llx start=0x%llx length=0x%lx\n",
289 obj.id, _LLU(i_start), pcol->length); 291 ios->obj.id, _LLU(ios->offset), pcol->length);
290 292
291 /* pages ownership was passed to pcol_copy */ 293 /* pages ownership was passed to pcol_copy */
292 _pcol_reset(pcol); 294 _pcol_reset(pcol);
@@ -295,12 +297,10 @@ static int read_exec(struct page_collect *pcol, bool is_sync)
295err: 297err:
296 if (!is_sync) 298 if (!is_sync)
297 _unlock_pcol_pages(pcol, ret, READ); 299 _unlock_pcol_pages(pcol, ret, READ);
298 else /* Pages unlocked by caller in sync mode only free bio */ 300
299 pcol_free(pcol); 301 pcol_free(pcol);
300 302
301 kfree(pcol_copy); 303 kfree(pcol_copy);
302 if (or)
303 osd_end_request(or);
304 return ret; 304 return ret;
305} 305}
306 306
@@ -421,9 +421,8 @@ static int _readpage(struct page *page, bool is_sync)
421 421
422 _pcol_init(&pcol, 1, page->mapping->host); 422 _pcol_init(&pcol, 1, page->mapping->host);
423 423
424 /* readpage_strip might call read_exec(,async) inside at several places 424 /* readpage_strip might call read_exec(,is_sync==false) at several
425 * but this is safe for is_async=0 since read_exec will not do anything 425 * places but not if we have a single page.
426 * when we have a single page.
427 */ 426 */
428 ret = readpage_strip(&pcol, page); 427 ret = readpage_strip(&pcol, page);
429 if (ret) { 428 if (ret) {
@@ -442,8 +441,8 @@ static int exofs_readpage(struct file *file, struct page *page)
442 return _readpage(page, false); 441 return _readpage(page, false);
443} 442}
444 443
445/* Callback for osd_write. All writes are asynchronouse */ 444/* Callback for osd_write. All writes are asynchronous */
446static void writepages_done(struct osd_request *or, void *p) 445static void writepages_done(struct exofs_io_state *ios, void *p)
447{ 446{
448 struct page_collect *pcol = p; 447 struct page_collect *pcol = p;
449 struct bio_vec *bvec; 448 struct bio_vec *bvec;
@@ -451,16 +450,12 @@ static void writepages_done(struct osd_request *or, void *p)
451 u64 resid; 450 u64 resid;
452 u64 good_bytes; 451 u64 good_bytes;
453 u64 length = 0; 452 u64 length = 0;
453 int ret = exofs_check_io(ios, &resid);
454 454
455 int ret = exofs_check_ok_resid(or, NULL, &resid);
456
457 osd_end_request(or);
458 atomic_dec(&pcol->sbi->s_curr_pending); 455 atomic_dec(&pcol->sbi->s_curr_pending);
459 456
460 if (likely(!ret)) 457 if (likely(!ret))
461 good_bytes = pcol->length; 458 good_bytes = pcol->length;
462 else if (!resid)
463 good_bytes = 0;
464 else 459 else
465 good_bytes = pcol->length - resid; 460 good_bytes = pcol->length - resid;
466 461
@@ -498,23 +493,13 @@ static void writepages_done(struct osd_request *or, void *p)
498static int write_exec(struct page_collect *pcol) 493static int write_exec(struct page_collect *pcol)
499{ 494{
500 struct exofs_i_info *oi = exofs_i(pcol->inode); 495 struct exofs_i_info *oi = exofs_i(pcol->inode);
501 struct osd_obj_id obj = {pcol->sbi->s_pid, 496 struct exofs_io_state *ios = pcol->ios;
502 pcol->inode->i_ino + EXOFS_OBJ_OFF};
503 struct osd_request *or = NULL;
504 struct page_collect *pcol_copy = NULL; 497 struct page_collect *pcol_copy = NULL;
505 loff_t i_start = pcol->pg_first << PAGE_CACHE_SHIFT;
506 int ret; 498 int ret;
507 499
508 if (!pcol->bio) 500 if (!pcol->bio)
509 return 0; 501 return 0;
510 502
511 or = osd_start_request(pcol->sbi->s_dev, GFP_KERNEL);
512 if (unlikely(!or)) {
513 EXOFS_ERR("write_exec: Faild to osd_start_request()\n");
514 ret = -ENOMEM;
515 goto err;
516 }
517
518 pcol_copy = kmalloc(sizeof(*pcol_copy), GFP_KERNEL); 503 pcol_copy = kmalloc(sizeof(*pcol_copy), GFP_KERNEL);
519 if (!pcol_copy) { 504 if (!pcol_copy) {
520 EXOFS_ERR("write_exec: Faild to kmalloc(pcol)\n"); 505 EXOFS_ERR("write_exec: Faild to kmalloc(pcol)\n");
@@ -525,16 +510,22 @@ static int write_exec(struct page_collect *pcol)
525 *pcol_copy = *pcol; 510 *pcol_copy = *pcol;
526 511
527 pcol_copy->bio->bi_rw |= (1 << BIO_RW); /* FIXME: bio_set_dir() */ 512 pcol_copy->bio->bi_rw |= (1 << BIO_RW); /* FIXME: bio_set_dir() */
528 osd_req_write(or, &obj, i_start, pcol_copy->bio, pcol_copy->length); 513
529 ret = exofs_async_op(or, writepages_done, pcol_copy, oi->i_cred); 514 ios->bio = pcol_copy->bio;
515 ios->offset = pcol_copy->pg_first << PAGE_CACHE_SHIFT;
516 ios->length = pcol_copy->length;
517 ios->done = writepages_done;
518 ios->private = pcol_copy;
519
520 ret = exofs_oi_write(oi, ios);
530 if (unlikely(ret)) { 521 if (unlikely(ret)) {
531 EXOFS_ERR("write_exec: exofs_async_op() Faild\n"); 522 EXOFS_ERR("write_exec: exofs_oi_write() Faild\n");
532 goto err; 523 goto err;
533 } 524 }
534 525
535 atomic_inc(&pcol->sbi->s_curr_pending); 526 atomic_inc(&pcol->sbi->s_curr_pending);
536 EXOFS_DBGMSG("write_exec(0x%lx, 0x%llx) start=0x%llx length=0x%lx\n", 527 EXOFS_DBGMSG("write_exec(0x%lx, 0x%llx) start=0x%llx length=0x%lx\n",
537 pcol->inode->i_ino, pcol->pg_first, _LLU(i_start), 528 pcol->inode->i_ino, pcol->pg_first, _LLU(ios->offset),
538 pcol->length); 529 pcol->length);
539 /* pages ownership was passed to pcol_copy */ 530 /* pages ownership was passed to pcol_copy */
540 _pcol_reset(pcol); 531 _pcol_reset(pcol);
@@ -542,9 +533,9 @@ static int write_exec(struct page_collect *pcol)
542 533
543err: 534err:
544 _unlock_pcol_pages(pcol, ret, WRITE); 535 _unlock_pcol_pages(pcol, ret, WRITE);
536 pcol_free(pcol);
545 kfree(pcol_copy); 537 kfree(pcol_copy);
546 if (or) 538
547 osd_end_request(or);
548 return ret; 539 return ret;
549} 540}
550 541
@@ -588,6 +579,9 @@ static int writepage_strip(struct page *page,
588 if (PageError(page)) 579 if (PageError(page))
589 ClearPageError(page); 580 ClearPageError(page);
590 unlock_page(page); 581 unlock_page(page);
582 EXOFS_DBGMSG("writepage_strip(0x%lx, 0x%lx) "
583 "outside the limits\n",
584 inode->i_ino, page->index);
591 return 0; 585 return 0;
592 } 586 }
593 } 587 }
@@ -602,6 +596,9 @@ try_again:
602 ret = write_exec(pcol); 596 ret = write_exec(pcol);
603 if (unlikely(ret)) 597 if (unlikely(ret))
604 goto fail; 598 goto fail;
599
600 EXOFS_DBGMSG("writepage_strip(0x%lx, 0x%lx) Discontinuity\n",
601 inode->i_ino, page->index);
605 goto try_again; 602 goto try_again;
606 } 603 }
607 604
@@ -636,6 +633,8 @@ try_again:
636 return 0; 633 return 0;
637 634
638fail: 635fail:
636 EXOFS_DBGMSG("Error: writepage_strip(0x%lx, 0x%lx)=>%d\n",
637 inode->i_ino, page->index, ret);
639 set_bit(AS_EIO, &page->mapping->flags); 638 set_bit(AS_EIO, &page->mapping->flags);
640 unlock_page(page); 639 unlock_page(page);
641 return ret; 640 return ret;
@@ -654,14 +653,17 @@ static int exofs_writepages(struct address_space *mapping,
654 wbc->range_end >> PAGE_CACHE_SHIFT; 653 wbc->range_end >> PAGE_CACHE_SHIFT;
655 654
656 if (start || end) 655 if (start || end)
657 expected_pages = min(end - start + 1, 32L); 656 expected_pages = end - start + 1;
658 else 657 else
659 expected_pages = mapping->nrpages; 658 expected_pages = mapping->nrpages;
660 659
661 EXOFS_DBGMSG("inode(0x%lx) wbc->start=0x%llx wbc->end=0x%llx" 660 if (expected_pages < 32L)
662 " m->nrpages=%lu start=0x%lx end=0x%lx\n", 661 expected_pages = 32L;
662
663 EXOFS_DBGMSG("inode(0x%lx) wbc->start=0x%llx wbc->end=0x%llx "
664 "nrpages=%lu start=0x%lx end=0x%lx expected_pages=%ld\n",
663 mapping->host->i_ino, wbc->range_start, wbc->range_end, 665 mapping->host->i_ino, wbc->range_start, wbc->range_end,
664 mapping->nrpages, start, end); 666 mapping->nrpages, start, end, expected_pages);
665 667
666 _pcol_init(&pcol, expected_pages, mapping->host); 668 _pcol_init(&pcol, expected_pages, mapping->host);
667 669
@@ -773,19 +775,28 @@ static int exofs_get_block(struct inode *inode, sector_t iblock,
773const struct osd_attr g_attr_logical_length = ATTR_DEF( 775const struct osd_attr g_attr_logical_length = ATTR_DEF(
774 OSD_APAGE_OBJECT_INFORMATION, OSD_ATTR_OI_LOGICAL_LENGTH, 8); 776 OSD_APAGE_OBJECT_INFORMATION, OSD_ATTR_OI_LOGICAL_LENGTH, 8);
775 777
778static int _do_truncate(struct inode *inode)
779{
780 struct exofs_i_info *oi = exofs_i(inode);
781 loff_t isize = i_size_read(inode);
782 int ret;
783
784 inode->i_mtime = inode->i_ctime = CURRENT_TIME;
785
786 nobh_truncate_page(inode->i_mapping, isize, exofs_get_block);
787
788 ret = exofs_oi_truncate(oi, (u64)isize);
789 EXOFS_DBGMSG("(0x%lx) size=0x%llx\n", inode->i_ino, isize);
790 return ret;
791}
792
776/* 793/*
777 * Truncate a file to the specified size - all we have to do is set the size 794 * Truncate a file to the specified size - all we have to do is set the size
778 * attribute. We make sure the object exists first. 795 * attribute. We make sure the object exists first.
779 */ 796 */
780void exofs_truncate(struct inode *inode) 797void exofs_truncate(struct inode *inode)
781{ 798{
782 struct exofs_sb_info *sbi = inode->i_sb->s_fs_info;
783 struct exofs_i_info *oi = exofs_i(inode); 799 struct exofs_i_info *oi = exofs_i(inode);
784 struct osd_obj_id obj = {sbi->s_pid, inode->i_ino + EXOFS_OBJ_OFF};
785 struct osd_request *or;
786 struct osd_attr attr;
787 loff_t isize = i_size_read(inode);
788 __be64 newsize;
789 int ret; 800 int ret;
790 801
791 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) 802 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)
@@ -795,22 +806,6 @@ void exofs_truncate(struct inode *inode)
795 return; 806 return;
796 if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) 807 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
797 return; 808 return;
798 inode->i_mtime = inode->i_ctime = CURRENT_TIME;
799
800 nobh_truncate_page(inode->i_mapping, isize, exofs_get_block);
801
802 or = osd_start_request(sbi->s_dev, GFP_KERNEL);
803 if (unlikely(!or)) {
804 EXOFS_ERR("ERROR: exofs_truncate: osd_start_request failed\n");
805 goto fail;
806 }
807
808 osd_req_set_attributes(or, &obj);
809
810 newsize = cpu_to_be64((u64)isize);
811 attr = g_attr_logical_length;
812 attr.val_ptr = &newsize;
813 osd_req_add_set_attr_list(or, &attr, 1);
814 809
815 /* if we are about to truncate an object, and it hasn't been 810 /* if we are about to truncate an object, and it hasn't been
816 * created yet, wait 811 * created yet, wait
@@ -818,8 +813,7 @@ void exofs_truncate(struct inode *inode)
818 if (unlikely(wait_obj_created(oi))) 813 if (unlikely(wait_obj_created(oi)))
819 goto fail; 814 goto fail;
820 815
821 ret = exofs_sync_op(or, sbi->s_timeout, oi->i_cred); 816 ret = _do_truncate(inode);
822 osd_end_request(or);
823 if (ret) 817 if (ret)
824 goto fail; 818 goto fail;
825 819
@@ -849,66 +843,57 @@ int exofs_setattr(struct dentry *dentry, struct iattr *iattr)
849 843
850/* 844/*
851 * Read an inode from the OSD, and return it as is. We also return the size 845 * Read an inode from the OSD, and return it as is. We also return the size
852 * attribute in the 'sanity' argument if we got compiled with debugging turned 846 * attribute in the 'obj_size' argument.
853 * on.
854 */ 847 */
855static int exofs_get_inode(struct super_block *sb, struct exofs_i_info *oi, 848static int exofs_get_inode(struct super_block *sb, struct exofs_i_info *oi,
856 struct exofs_fcb *inode, uint64_t *sanity) 849 struct exofs_fcb *inode, uint64_t *obj_size)
857{ 850{
858 struct exofs_sb_info *sbi = sb->s_fs_info; 851 struct exofs_sb_info *sbi = sb->s_fs_info;
859 struct osd_request *or; 852 struct osd_attr attrs[2];
860 struct osd_attr attr; 853 struct exofs_io_state *ios;
861 struct osd_obj_id obj = {sbi->s_pid,
862 oi->vfs_inode.i_ino + EXOFS_OBJ_OFF};
863 int ret; 854 int ret;
864 855
865 exofs_make_credential(oi->i_cred, &obj); 856 *obj_size = ~0;
866 857 ret = exofs_get_io_state(sbi, &ios);
867 or = osd_start_request(sbi->s_dev, GFP_KERNEL); 858 if (unlikely(ret)) {
868 if (unlikely(!or)) { 859 EXOFS_ERR("%s: exofs_get_io_state failed.\n", __func__);
869 EXOFS_ERR("exofs_get_inode: osd_start_request failed.\n"); 860 return ret;
870 return -ENOMEM;
871 } 861 }
872 osd_req_get_attributes(or, &obj);
873 862
874 /* we need the inode attribute */ 863 ios->obj.id = exofs_oi_objno(oi);
875 osd_req_add_get_attr_list(or, &g_attr_inode_data, 1); 864 exofs_make_credential(oi->i_cred, &ios->obj);
865 ios->cred = oi->i_cred;
876 866
877#ifdef EXOFS_DEBUG_OBJ_ISIZE 867 attrs[0] = g_attr_inode_data;
878 /* we get the size attributes to do a sanity check */ 868 attrs[1] = g_attr_logical_length;
879 osd_req_add_get_attr_list(or, &g_attr_logical_length, 1); 869 ios->in_attr = attrs;
880#endif 870 ios->in_attr_len = ARRAY_SIZE(attrs);
881 871
882 ret = exofs_sync_op(or, sbi->s_timeout, oi->i_cred); 872 ret = exofs_sbi_read(ios);
883 if (ret) 873 if (ret)
884 goto out; 874 goto out;
885 875
886 attr = g_attr_inode_data; 876 ret = extract_attr_from_ios(ios, &attrs[0]);
887 ret = extract_attr_from_req(or, &attr);
888 if (ret) { 877 if (ret) {
889 EXOFS_ERR("exofs_get_inode: extract_attr_from_req failed\n"); 878 EXOFS_ERR("%s: extract_attr of inode_data failed\n", __func__);
890 goto out; 879 goto out;
891 } 880 }
881 WARN_ON(attrs[0].len != EXOFS_INO_ATTR_SIZE);
882 memcpy(inode, attrs[0].val_ptr, EXOFS_INO_ATTR_SIZE);
892 883
893 WARN_ON(attr.len != EXOFS_INO_ATTR_SIZE); 884 ret = extract_attr_from_ios(ios, &attrs[1]);
894 memcpy(inode, attr.val_ptr, EXOFS_INO_ATTR_SIZE);
895
896#ifdef EXOFS_DEBUG_OBJ_ISIZE
897 attr = g_attr_logical_length;
898 ret = extract_attr_from_req(or, &attr);
899 if (ret) { 885 if (ret) {
900 EXOFS_ERR("ERROR: extract attr from or failed\n"); 886 EXOFS_ERR("%s: extract_attr of logical_length failed\n",
887 __func__);
901 goto out; 888 goto out;
902 } 889 }
903 *sanity = get_unaligned_be64(attr.val_ptr); 890 *obj_size = get_unaligned_be64(attrs[1].val_ptr);
904#endif
905 891
906out: 892out:
907 osd_end_request(or); 893 exofs_put_io_state(ios);
908 return ret; 894 return ret;
909} 895}
910 896
911
912static void __oi_init(struct exofs_i_info *oi) 897static void __oi_init(struct exofs_i_info *oi)
913{ 898{
914 init_waitqueue_head(&oi->i_wq); 899 init_waitqueue_head(&oi->i_wq);
@@ -922,7 +907,7 @@ struct inode *exofs_iget(struct super_block *sb, unsigned long ino)
922 struct exofs_i_info *oi; 907 struct exofs_i_info *oi;
923 struct exofs_fcb fcb; 908 struct exofs_fcb fcb;
924 struct inode *inode; 909 struct inode *inode;
925 uint64_t uninitialized_var(sanity); 910 uint64_t obj_size;
926 int ret; 911 int ret;
927 912
928 inode = iget_locked(sb, ino); 913 inode = iget_locked(sb, ino);
@@ -934,7 +919,7 @@ struct inode *exofs_iget(struct super_block *sb, unsigned long ino)
934 __oi_init(oi); 919 __oi_init(oi);
935 920
936 /* read the inode from the osd */ 921 /* read the inode from the osd */
937 ret = exofs_get_inode(sb, oi, &fcb, &sanity); 922 ret = exofs_get_inode(sb, oi, &fcb, &obj_size);
938 if (ret) 923 if (ret)
939 goto bad_inode; 924 goto bad_inode;
940 925
@@ -955,13 +940,12 @@ struct inode *exofs_iget(struct super_block *sb, unsigned long ino)
955 inode->i_blkbits = EXOFS_BLKSHIFT; 940 inode->i_blkbits = EXOFS_BLKSHIFT;
956 inode->i_generation = le32_to_cpu(fcb.i_generation); 941 inode->i_generation = le32_to_cpu(fcb.i_generation);
957 942
958#ifdef EXOFS_DEBUG_OBJ_ISIZE 943 if ((inode->i_size != obj_size) &&
959 if ((inode->i_size != sanity) &&
960 (!exofs_inode_is_fast_symlink(inode))) { 944 (!exofs_inode_is_fast_symlink(inode))) {
961 EXOFS_ERR("WARNING: Size of inode=%llu != object=%llu\n", 945 EXOFS_ERR("WARNING: Size of inode=%llu != object=%llu\n",
962 inode->i_size, _LLU(sanity)); 946 inode->i_size, _LLU(obj_size));
947 /* FIXME: call exofs_inode_recovery() */
963 } 948 }
964#endif
965 949
966 oi->i_dir_start_lookup = 0; 950 oi->i_dir_start_lookup = 0;
967 951
@@ -1027,23 +1011,30 @@ int __exofs_wait_obj_created(struct exofs_i_info *oi)
1027 * set the obj_created flag so that other methods know that the object exists on 1011 * set the obj_created flag so that other methods know that the object exists on
1028 * the OSD. 1012 * the OSD.
1029 */ 1013 */
1030static void create_done(struct osd_request *or, void *p) 1014static void create_done(struct exofs_io_state *ios, void *p)
1031{ 1015{
1032 struct inode *inode = p; 1016 struct inode *inode = p;
1033 struct exofs_i_info *oi = exofs_i(inode); 1017 struct exofs_i_info *oi = exofs_i(inode);
1034 struct exofs_sb_info *sbi = inode->i_sb->s_fs_info; 1018 struct exofs_sb_info *sbi = inode->i_sb->s_fs_info;
1035 int ret; 1019 int ret;
1036 1020
1037 ret = exofs_check_ok(or); 1021 ret = exofs_check_io(ios, NULL);
1038 osd_end_request(or); 1022 exofs_put_io_state(ios);
1023
1039 atomic_dec(&sbi->s_curr_pending); 1024 atomic_dec(&sbi->s_curr_pending);
1040 1025
1041 if (unlikely(ret)) { 1026 if (unlikely(ret)) {
1042 EXOFS_ERR("object=0x%llx creation faild in pid=0x%llx", 1027 EXOFS_ERR("object=0x%llx creation faild in pid=0x%llx",
1043 _LLU(sbi->s_pid), _LLU(inode->i_ino + EXOFS_OBJ_OFF)); 1028 _LLU(exofs_oi_objno(oi)), _LLU(sbi->s_pid));
1044 make_bad_inode(inode); 1029 /*TODO: When FS is corrupted creation can fail, object already
1045 } else 1030 * exist. Get rid of this asynchronous creation, if exist
1046 set_obj_created(oi); 1031 * increment the obj counter and try the next object. Until we
1032 * succeed. All these dangling objects will be made into lost
1033 * files by chkfs.exofs
1034 */
1035 }
1036
1037 set_obj_created(oi);
1047 1038
1048 atomic_dec(&inode->i_count); 1039 atomic_dec(&inode->i_count);
1049 wake_up(&oi->i_wq); 1040 wake_up(&oi->i_wq);
@@ -1058,8 +1049,7 @@ struct inode *exofs_new_inode(struct inode *dir, int mode)
1058 struct inode *inode; 1049 struct inode *inode;
1059 struct exofs_i_info *oi; 1050 struct exofs_i_info *oi;
1060 struct exofs_sb_info *sbi; 1051 struct exofs_sb_info *sbi;
1061 struct osd_request *or; 1052 struct exofs_io_state *ios;
1062 struct osd_obj_id obj;
1063 int ret; 1053 int ret;
1064 1054
1065 sb = dir->i_sb; 1055 sb = dir->i_sb;
@@ -1096,28 +1086,28 @@ struct inode *exofs_new_inode(struct inode *dir, int mode)
1096 1086
1097 mark_inode_dirty(inode); 1087 mark_inode_dirty(inode);
1098 1088
1099 obj.partition = sbi->s_pid; 1089 ret = exofs_get_io_state(sbi, &ios);
1100 obj.id = inode->i_ino + EXOFS_OBJ_OFF; 1090 if (unlikely(ret)) {
1101 exofs_make_credential(oi->i_cred, &obj); 1091 EXOFS_ERR("exofs_new_inode: exofs_get_io_state failed\n");
1102 1092 return ERR_PTR(ret);
1103 or = osd_start_request(sbi->s_dev, GFP_KERNEL);
1104 if (unlikely(!or)) {
1105 EXOFS_ERR("exofs_new_inode: osd_start_request failed\n");
1106 return ERR_PTR(-ENOMEM);
1107 } 1093 }
1108 1094
1109 osd_req_create_object(or, &obj); 1095 ios->obj.id = exofs_oi_objno(oi);
1096 exofs_make_credential(oi->i_cred, &ios->obj);
1110 1097
1111 /* increment the refcount so that the inode will still be around when we 1098 /* increment the refcount so that the inode will still be around when we
1112 * reach the callback 1099 * reach the callback
1113 */ 1100 */
1114 atomic_inc(&inode->i_count); 1101 atomic_inc(&inode->i_count);
1115 1102
1116 ret = exofs_async_op(or, create_done, inode, oi->i_cred); 1103 ios->done = create_done;
1104 ios->private = inode;
1105 ios->cred = oi->i_cred;
1106 ret = exofs_sbi_create(ios);
1117 if (ret) { 1107 if (ret) {
1118 atomic_dec(&inode->i_count); 1108 atomic_dec(&inode->i_count);
1119 osd_end_request(or); 1109 exofs_put_io_state(ios);
1120 return ERR_PTR(-EIO); 1110 return ERR_PTR(ret);
1121 } 1111 }
1122 atomic_inc(&sbi->s_curr_pending); 1112 atomic_inc(&sbi->s_curr_pending);
1123 1113
@@ -1135,11 +1125,11 @@ struct updatei_args {
1135/* 1125/*
1136 * Callback function from exofs_update_inode(). 1126 * Callback function from exofs_update_inode().
1137 */ 1127 */
1138static void updatei_done(struct osd_request *or, void *p) 1128static void updatei_done(struct exofs_io_state *ios, void *p)
1139{ 1129{
1140 struct updatei_args *args = p; 1130 struct updatei_args *args = p;
1141 1131
1142 osd_end_request(or); 1132 exofs_put_io_state(ios);
1143 1133
1144 atomic_dec(&args->sbi->s_curr_pending); 1134 atomic_dec(&args->sbi->s_curr_pending);
1145 1135
@@ -1155,8 +1145,7 @@ static int exofs_update_inode(struct inode *inode, int do_sync)
1155 struct exofs_i_info *oi = exofs_i(inode); 1145 struct exofs_i_info *oi = exofs_i(inode);
1156 struct super_block *sb = inode->i_sb; 1146 struct super_block *sb = inode->i_sb;
1157 struct exofs_sb_info *sbi = sb->s_fs_info; 1147 struct exofs_sb_info *sbi = sb->s_fs_info;
1158 struct osd_obj_id obj = {sbi->s_pid, inode->i_ino + EXOFS_OBJ_OFF}; 1148 struct exofs_io_state *ios;
1159 struct osd_request *or;
1160 struct osd_attr attr; 1149 struct osd_attr attr;
1161 struct exofs_fcb *fcb; 1150 struct exofs_fcb *fcb;
1162 struct updatei_args *args; 1151 struct updatei_args *args;
@@ -1193,18 +1182,16 @@ static int exofs_update_inode(struct inode *inode, int do_sync)
1193 } else 1182 } else
1194 memcpy(fcb->i_data, oi->i_data, sizeof(fcb->i_data)); 1183 memcpy(fcb->i_data, oi->i_data, sizeof(fcb->i_data));
1195 1184
1196 or = osd_start_request(sbi->s_dev, GFP_KERNEL); 1185 ret = exofs_get_io_state(sbi, &ios);
1197 if (unlikely(!or)) { 1186 if (unlikely(ret)) {
1198 EXOFS_ERR("exofs_update_inode: osd_start_request failed.\n"); 1187 EXOFS_ERR("%s: exofs_get_io_state failed.\n", __func__);
1199 ret = -ENOMEM;
1200 goto free_args; 1188 goto free_args;
1201 } 1189 }
1202 1190
1203 osd_req_set_attributes(or, &obj);
1204
1205 attr = g_attr_inode_data; 1191 attr = g_attr_inode_data;
1206 attr.val_ptr = fcb; 1192 attr.val_ptr = fcb;
1207 osd_req_add_set_attr_list(or, &attr, 1); 1193 ios->out_attr_len = 1;
1194 ios->out_attr = &attr;
1208 1195
1209 if (!obj_created(oi)) { 1196 if (!obj_created(oi)) {
1210 EXOFS_DBGMSG("!obj_created\n"); 1197 EXOFS_DBGMSG("!obj_created\n");
@@ -1213,22 +1200,19 @@ static int exofs_update_inode(struct inode *inode, int do_sync)
1213 EXOFS_DBGMSG("wait_event done\n"); 1200 EXOFS_DBGMSG("wait_event done\n");
1214 } 1201 }
1215 1202
1216 if (do_sync) { 1203 if (!do_sync) {
1217 ret = exofs_sync_op(or, sbi->s_timeout, oi->i_cred);
1218 osd_end_request(or);
1219 goto free_args;
1220 } else {
1221 args->sbi = sbi; 1204 args->sbi = sbi;
1205 ios->done = updatei_done;
1206 ios->private = args;
1207 }
1222 1208
1223 ret = exofs_async_op(or, updatei_done, args, oi->i_cred); 1209 ret = exofs_oi_write(oi, ios);
1224 if (ret) { 1210 if (!do_sync && !ret) {
1225 osd_end_request(or);
1226 goto free_args;
1227 }
1228 atomic_inc(&sbi->s_curr_pending); 1211 atomic_inc(&sbi->s_curr_pending);
1229 goto out; /* deallocation in updatei_done */ 1212 goto out; /* deallocation in updatei_done */
1230 } 1213 }
1231 1214
1215 exofs_put_io_state(ios);
1232free_args: 1216free_args:
1233 kfree(args); 1217 kfree(args);
1234out: 1218out:
@@ -1245,11 +1229,12 @@ int exofs_write_inode(struct inode *inode, int wait)
1245 * Callback function from exofs_delete_inode() - don't have much cleaning up to 1229 * Callback function from exofs_delete_inode() - don't have much cleaning up to
1246 * do. 1230 * do.
1247 */ 1231 */
1248static void delete_done(struct osd_request *or, void *p) 1232static void delete_done(struct exofs_io_state *ios, void *p)
1249{ 1233{
1250 struct exofs_sb_info *sbi; 1234 struct exofs_sb_info *sbi = p;
1251 osd_end_request(or); 1235
1252 sbi = p; 1236 exofs_put_io_state(ios);
1237
1253 atomic_dec(&sbi->s_curr_pending); 1238 atomic_dec(&sbi->s_curr_pending);
1254} 1239}
1255 1240
@@ -1263,8 +1248,7 @@ void exofs_delete_inode(struct inode *inode)
1263 struct exofs_i_info *oi = exofs_i(inode); 1248 struct exofs_i_info *oi = exofs_i(inode);
1264 struct super_block *sb = inode->i_sb; 1249 struct super_block *sb = inode->i_sb;
1265 struct exofs_sb_info *sbi = sb->s_fs_info; 1250 struct exofs_sb_info *sbi = sb->s_fs_info;
1266 struct osd_obj_id obj = {sbi->s_pid, inode->i_ino + EXOFS_OBJ_OFF}; 1251 struct exofs_io_state *ios;
1267 struct osd_request *or;
1268 int ret; 1252 int ret;
1269 1253
1270 truncate_inode_pages(&inode->i_data, 0); 1254 truncate_inode_pages(&inode->i_data, 0);
@@ -1281,25 +1265,26 @@ void exofs_delete_inode(struct inode *inode)
1281 1265
1282 clear_inode(inode); 1266 clear_inode(inode);
1283 1267
1284 or = osd_start_request(sbi->s_dev, GFP_KERNEL); 1268 ret = exofs_get_io_state(sbi, &ios);
1285 if (unlikely(!or)) { 1269 if (unlikely(ret)) {
1286 EXOFS_ERR("exofs_delete_inode: osd_start_request failed\n"); 1270 EXOFS_ERR("%s: exofs_get_io_state failed\n", __func__);
1287 return; 1271 return;
1288 } 1272 }
1289 1273
1290 osd_req_remove_object(or, &obj);
1291
1292 /* if we are deleting an obj that hasn't been created yet, wait */ 1274 /* if we are deleting an obj that hasn't been created yet, wait */
1293 if (!obj_created(oi)) { 1275 if (!obj_created(oi)) {
1294 BUG_ON(!obj_2bcreated(oi)); 1276 BUG_ON(!obj_2bcreated(oi));
1295 wait_event(oi->i_wq, obj_created(oi)); 1277 wait_event(oi->i_wq, obj_created(oi));
1296 } 1278 }
1297 1279
1298 ret = exofs_async_op(or, delete_done, sbi, oi->i_cred); 1280 ios->obj.id = exofs_oi_objno(oi);
1281 ios->done = delete_done;
1282 ios->private = sbi;
1283 ios->cred = oi->i_cred;
1284 ret = exofs_sbi_remove(ios);
1299 if (ret) { 1285 if (ret) {
1300 EXOFS_ERR( 1286 EXOFS_ERR("%s: exofs_sbi_remove failed\n", __func__);
1301 "ERROR: @exofs_delete_inode exofs_async_op failed\n"); 1287 exofs_put_io_state(ios);
1302 osd_end_request(or);
1303 return; 1288 return;
1304 } 1289 }
1305 atomic_inc(&sbi->s_curr_pending); 1290 atomic_inc(&sbi->s_curr_pending);
diff --git a/fs/exofs/ios.c b/fs/exofs/ios.c
index 4372542df284..bb2f9d341fdf 100644
--- a/fs/exofs/ios.c
+++ b/fs/exofs/ios.c
@@ -23,88 +23,327 @@
23 */ 23 */
24 24
25#include <scsi/scsi_device.h> 25#include <scsi/scsi_device.h>
26#include <scsi/osd_sense.h>
27 26
28#include "exofs.h" 27#include "exofs.h"
29 28
30int exofs_check_ok_resid(struct osd_request *or, u64 *in_resid, u64 *out_resid) 29void exofs_make_credential(u8 cred_a[OSD_CAP_LEN], const struct osd_obj_id *obj)
31{ 30{
32 struct osd_sense_info osi; 31 osd_sec_init_nosec_doall_caps(cred_a, obj, false, true);
33 int ret = osd_req_decode_sense(or, &osi); 32}
34 33
35 if (ret) { /* translate to Linux codes */ 34int exofs_read_kern(struct osd_dev *od, u8 *cred, struct osd_obj_id *obj,
36 if (osi.additional_code == scsi_invalid_field_in_cdb) { 35 u64 offset, void *p, unsigned length)
37 if (osi.cdb_field_offset == OSD_CFO_STARTING_BYTE) 36{
38 ret = -EFAULT; 37 struct osd_request *or = osd_start_request(od, GFP_KERNEL);
39 if (osi.cdb_field_offset == OSD_CFO_OBJECT_ID) 38/* struct osd_sense_info osi = {.key = 0};*/
40 ret = -ENOENT; 39 int ret;
41 else 40
42 ret = -EINVAL; 41 if (unlikely(!or)) {
43 } else if (osi.additional_code == osd_quota_error) 42 EXOFS_DBGMSG("%s: osd_start_request failed.\n", __func__);
44 ret = -ENOSPC; 43 return -ENOMEM;
45 else 44 }
46 ret = -EIO; 45 ret = osd_req_read_kern(or, obj, offset, p, length);
46 if (unlikely(ret)) {
47 EXOFS_DBGMSG("%s: osd_req_read_kern failed.\n", __func__);
48 goto out;
47 } 49 }
48 50
49 /* FIXME: should be include in osd_sense_info */ 51 ret = osd_finalize_request(or, 0, cred, NULL);
50 if (in_resid) 52 if (unlikely(ret)) {
51 *in_resid = or->in.req ? or->in.req->resid_len : 0; 53 EXOFS_DBGMSG("Faild to osd_finalize_request() => %d\n", ret);
54 goto out;
55 }
52 56
53 if (out_resid) 57 ret = osd_execute_request(or);
54 *out_resid = or->out.req ? or->out.req->resid_len : 0; 58 if (unlikely(ret))
59 EXOFS_DBGMSG("osd_execute_request() => %d\n", ret);
60 /* osd_req_decode_sense(or, ret); */
55 61
62out:
63 osd_end_request(or);
56 return ret; 64 return ret;
57} 65}
58 66
59void exofs_make_credential(u8 cred_a[OSD_CAP_LEN], const struct osd_obj_id *obj) 67int exofs_get_io_state(struct exofs_sb_info *sbi, struct exofs_io_state** pios)
60{ 68{
61 osd_sec_init_nosec_doall_caps(cred_a, obj, false, true); 69 struct exofs_io_state *ios;
70
71 /*TODO: Maybe use kmem_cach per sbi of size
72 * exofs_io_state_size(sbi->s_numdevs)
73 */
74 ios = kzalloc(exofs_io_state_size(1), GFP_KERNEL);
75 if (unlikely(!ios)) {
76 *pios = NULL;
77 return -ENOMEM;
78 }
79
80 ios->sbi = sbi;
81 ios->obj.partition = sbi->s_pid;
82 *pios = ios;
83 return 0;
62} 84}
63 85
64/* 86void exofs_put_io_state(struct exofs_io_state *ios)
65 * Perform a synchronous OSD operation.
66 */
67int exofs_sync_op(struct osd_request *or, int timeout, uint8_t *credential)
68{ 87{
69 int ret; 88 if (ios) {
89 unsigned i;
70 90
71 or->timeout = timeout; 91 for (i = 0; i < ios->numdevs; i++) {
72 ret = osd_finalize_request(or, 0, credential, NULL); 92 struct exofs_per_dev_state *per_dev = &ios->per_dev[i];
73 if (ret) { 93
74 EXOFS_DBGMSG("Faild to osd_finalize_request() => %d\n", ret); 94 if (per_dev->or)
75 return ret; 95 osd_end_request(per_dev->or);
96 if (per_dev->bio)
97 bio_put(per_dev->bio);
98 }
99
100 kfree(ios);
76 } 101 }
102}
77 103
78 ret = osd_execute_request(or); 104static void _sync_done(struct exofs_io_state *ios, void *p)
105{
106 struct completion *waiting = p;
79 107
80 if (ret) 108 complete(waiting);
81 EXOFS_DBGMSG("osd_execute_request() => %d\n", ret); 109}
82 /* osd_req_decode_sense(or, ret); */ 110
111static void _last_io(struct kref *kref)
112{
113 struct exofs_io_state *ios = container_of(
114 kref, struct exofs_io_state, kref);
115
116 ios->done(ios, ios->private);
117}
118
119static void _done_io(struct osd_request *or, void *p)
120{
121 struct exofs_io_state *ios = p;
122
123 kref_put(&ios->kref, _last_io);
124}
125
126static int exofs_io_execute(struct exofs_io_state *ios)
127{
128 DECLARE_COMPLETION_ONSTACK(wait);
129 bool sync = (ios->done == NULL);
130 int i, ret;
131
132 if (sync) {
133 ios->done = _sync_done;
134 ios->private = &wait;
135 }
136
137 for (i = 0; i < ios->numdevs; i++) {
138 struct osd_request *or = ios->per_dev[i].or;
139 if (unlikely(!or))
140 continue;
141
142 ret = osd_finalize_request(or, 0, ios->cred, NULL);
143 if (unlikely(ret)) {
144 EXOFS_DBGMSG("Faild to osd_finalize_request() => %d\n",
145 ret);
146 return ret;
147 }
148 }
149
150 kref_init(&ios->kref);
151
152 for (i = 0; i < ios->numdevs; i++) {
153 struct osd_request *or = ios->per_dev[i].or;
154 if (unlikely(!or))
155 continue;
156
157 kref_get(&ios->kref);
158 osd_execute_request_async(or, _done_io, ios);
159 }
160
161 kref_put(&ios->kref, _last_io);
162 ret = 0;
163
164 if (sync) {
165 wait_for_completion(&wait);
166 ret = exofs_check_io(ios, NULL);
167 }
83 return ret; 168 return ret;
84} 169}
85 170
86/* 171int exofs_check_io(struct exofs_io_state *ios, u64 *resid)
87 * Perform an asynchronous OSD operation.
88 */
89int exofs_async_op(struct osd_request *or, osd_req_done_fn *async_done,
90 void *caller_context, u8 *cred)
91{ 172{
92 int ret; 173 enum osd_err_priority acumulated_osd_err = 0;
174 int acumulated_lin_err = 0;
175 int i;
93 176
94 ret = osd_finalize_request(or, 0, cred, NULL); 177 for (i = 0; i < ios->numdevs; i++) {
95 if (ret) { 178 struct osd_sense_info osi;
96 EXOFS_DBGMSG("Faild to osd_finalize_request() => %d\n", ret); 179 int ret = osd_req_decode_sense(ios->per_dev[i].or, &osi);
97 return ret; 180
181 if (likely(!ret))
182 continue;
183
184 if (unlikely(ret == -EFAULT)) {
185 EXOFS_DBGMSG("%s: EFAULT Need page clear\n", __func__);
186 /*FIXME: All the pages in this device range should:
187 * clear_highpage(page);
188 */
189 }
190
191 if (osi.osd_err_pri >= acumulated_osd_err) {
192 acumulated_osd_err = osi.osd_err_pri;
193 acumulated_lin_err = ret;
194 }
195 }
196
197 /* TODO: raid specific residual calculations */
198 if (resid) {
199 if (likely(!acumulated_lin_err))
200 *resid = 0;
201 else
202 *resid = ios->length;
203 }
204
205 return acumulated_lin_err;
206}
207
208int exofs_sbi_create(struct exofs_io_state *ios)
209{
210 int i, ret;
211
212 for (i = 0; i < 1; i++) {
213 struct osd_request *or;
214
215 or = osd_start_request(ios->sbi->s_dev, GFP_KERNEL);
216 if (unlikely(!or)) {
217 EXOFS_ERR("%s: osd_start_request failed\n", __func__);
218 ret = -ENOMEM;
219 goto out;
220 }
221 ios->per_dev[i].or = or;
222 ios->numdevs++;
223
224 osd_req_create_object(or, &ios->obj);
225 }
226 ret = exofs_io_execute(ios);
227
228out:
229 return ret;
230}
231
232int exofs_sbi_remove(struct exofs_io_state *ios)
233{
234 int i, ret;
235
236 for (i = 0; i < 1; i++) {
237 struct osd_request *or;
238
239 or = osd_start_request(ios->sbi->s_dev, GFP_KERNEL);
240 if (unlikely(!or)) {
241 EXOFS_ERR("%s: osd_start_request failed\n", __func__);
242 ret = -ENOMEM;
243 goto out;
244 }
245 ios->per_dev[i].or = or;
246 ios->numdevs++;
247
248 osd_req_remove_object(or, &ios->obj);
249 }
250 ret = exofs_io_execute(ios);
251
252out:
253 return ret;
254}
255
256int exofs_sbi_write(struct exofs_io_state *ios)
257{
258 int i, ret;
259
260 for (i = 0; i < 1; i++) {
261 struct osd_request *or;
262
263 or = osd_start_request(ios->sbi->s_dev, GFP_KERNEL);
264 if (unlikely(!or)) {
265 EXOFS_ERR("%s: osd_start_request failed\n", __func__);
266 ret = -ENOMEM;
267 goto out;
268 }
269 ios->per_dev[i].or = or;
270 ios->numdevs++;
271
272 if (ios->bio) {
273 struct bio *bio;
274
275 bio = ios->bio;
276
277 osd_req_write(or, &ios->obj, ios->offset, bio,
278 ios->length);
279/* EXOFS_DBGMSG("write sync=%d\n", sync);*/
280 } else if (ios->kern_buff) {
281 osd_req_write_kern(or, &ios->obj, ios->offset,
282 ios->kern_buff, ios->length);
283/* EXOFS_DBGMSG("write_kern sync=%d\n", sync);*/
284 } else {
285 osd_req_set_attributes(or, &ios->obj);
286/* EXOFS_DBGMSG("set_attributes sync=%d\n", sync);*/
287 }
288
289 if (ios->out_attr)
290 osd_req_add_set_attr_list(or, ios->out_attr,
291 ios->out_attr_len);
292
293 if (ios->in_attr)
294 osd_req_add_get_attr_list(or, ios->in_attr,
295 ios->in_attr_len);
98 } 296 }
297 ret = exofs_io_execute(ios);
298
299out:
300 return ret;
301}
302
303int exofs_sbi_read(struct exofs_io_state *ios)
304{
305 int i, ret;
306
307 for (i = 0; i < 1; i++) {
308 struct osd_request *or;
309
310 or = osd_start_request(ios->sbi->s_dev, GFP_KERNEL);
311 if (unlikely(!or)) {
312 EXOFS_ERR("%s: osd_start_request failed\n", __func__);
313 ret = -ENOMEM;
314 goto out;
315 }
316 ios->per_dev[i].or = or;
317 ios->numdevs++;
318
319 if (ios->bio) {
320 osd_req_read(or, &ios->obj, ios->offset, ios->bio,
321 ios->length);
322/* EXOFS_DBGMSG("read sync=%d\n", sync);*/
323 } else if (ios->kern_buff) {
324 osd_req_read_kern(or, &ios->obj, ios->offset,
325 ios->kern_buff, ios->length);
326/* EXOFS_DBGMSG("read_kern sync=%d\n", sync);*/
327 } else {
328 osd_req_get_attributes(or, &ios->obj);
329/* EXOFS_DBGMSG("get_attributes sync=%d\n", sync);*/
330 }
331
332 if (ios->out_attr)
333 osd_req_add_set_attr_list(or, ios->out_attr,
334 ios->out_attr_len);
99 335
100 ret = osd_execute_request_async(or, async_done, caller_context); 336 if (ios->in_attr)
337 osd_req_add_get_attr_list(or, ios->in_attr,
338 ios->in_attr_len);
339 }
340 ret = exofs_io_execute(ios);
101 341
102 if (ret) 342out:
103 EXOFS_DBGMSG("osd_execute_request_async() => %d\n", ret);
104 return ret; 343 return ret;
105} 344}
106 345
107int extract_attr_from_req(struct osd_request *or, struct osd_attr *attr) 346int extract_attr_from_ios(struct exofs_io_state *ios, struct osd_attr *attr)
108{ 347{
109 struct osd_attr cur_attr = {.attr_page = 0}; /* start with zeros */ 348 struct osd_attr cur_attr = {.attr_page = 0}; /* start with zeros */
110 void *iter = NULL; 349 void *iter = NULL;
@@ -112,7 +351,8 @@ int extract_attr_from_req(struct osd_request *or, struct osd_attr *attr)
112 351
113 do { 352 do {
114 nelem = 1; 353 nelem = 1;
115 osd_req_decode_get_attr_list(or, &cur_attr, &nelem, &iter); 354 osd_req_decode_get_attr_list(ios->per_dev[0].or,
355 &cur_attr, &nelem, &iter);
116 if ((cur_attr.attr_page == attr->attr_page) && 356 if ((cur_attr.attr_page == attr->attr_page) &&
117 (cur_attr.attr_id == attr->attr_id)) { 357 (cur_attr.attr_id == attr->attr_id)) {
118 attr->len = cur_attr.len; 358 attr->len = cur_attr.len;
@@ -123,3 +363,43 @@ int extract_attr_from_req(struct osd_request *or, struct osd_attr *attr)
123 363
124 return -EIO; 364 return -EIO;
125} 365}
366
367int exofs_oi_truncate(struct exofs_i_info *oi, u64 size)
368{
369 struct exofs_sb_info *sbi = oi->vfs_inode.i_sb->s_fs_info;
370 struct exofs_io_state *ios;
371 struct osd_attr attr;
372 __be64 newsize;
373 int i, ret;
374
375 if (exofs_get_io_state(sbi, &ios))
376 return -ENOMEM;
377
378 ios->obj.id = exofs_oi_objno(oi);
379 ios->cred = oi->i_cred;
380
381 newsize = cpu_to_be64(size);
382 attr = g_attr_logical_length;
383 attr.val_ptr = &newsize;
384
385 for (i = 0; i < 1; i++) {
386 struct osd_request *or;
387
388 or = osd_start_request(sbi->s_dev, GFP_KERNEL);
389 if (unlikely(!or)) {
390 EXOFS_ERR("%s: osd_start_request failed\n", __func__);
391 ret = -ENOMEM;
392 goto out;
393 }
394 ios->per_dev[i].or = or;
395 ios->numdevs++;
396
397 osd_req_set_attributes(or, &ios->obj);
398 osd_req_add_set_attr_list(or, &attr, 1);
399 }
400 ret = exofs_io_execute(ios);
401
402out:
403 exofs_put_io_state(ios);
404 return ret;
405}
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index 28add3eac0a4..4cd97f526d49 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -203,49 +203,40 @@ int exofs_sync_fs(struct super_block *sb, int wait)
203{ 203{
204 struct exofs_sb_info *sbi; 204 struct exofs_sb_info *sbi;
205 struct exofs_fscb *fscb; 205 struct exofs_fscb *fscb;
206 struct osd_request *or; 206 struct exofs_io_state *ios;
207 struct osd_obj_id obj;
208 int ret = -ENOMEM; 207 int ret = -ENOMEM;
209 208
210 fscb = kzalloc(sizeof(struct exofs_fscb), GFP_KERNEL);
211 if (!fscb) {
212 EXOFS_ERR("exofs_write_super: memory allocation failed.\n");
213 return -ENOMEM;
214 }
215
216 lock_super(sb); 209 lock_super(sb);
217 sbi = sb->s_fs_info; 210 sbi = sb->s_fs_info;
211 fscb = &sbi->s_fscb;
212
213 ret = exofs_get_io_state(sbi, &ios);
214 if (ret)
215 goto out;
216
217 ios->length = sizeof(*fscb);
218 memset(fscb, 0, ios->length);
218 fscb->s_nextid = cpu_to_le64(sbi->s_nextid); 219 fscb->s_nextid = cpu_to_le64(sbi->s_nextid);
219 fscb->s_numfiles = cpu_to_le32(sbi->s_numfiles); 220 fscb->s_numfiles = cpu_to_le32(sbi->s_numfiles);
220 fscb->s_magic = cpu_to_le16(sb->s_magic); 221 fscb->s_magic = cpu_to_le16(sb->s_magic);
221 fscb->s_newfs = 0; 222 fscb->s_newfs = 0;
222 223
223 or = osd_start_request(sbi->s_dev, GFP_KERNEL); 224 ios->obj.id = EXOFS_SUPER_ID;
224 if (unlikely(!or)) { 225 ios->offset = 0;
225 EXOFS_ERR("exofs_write_super: osd_start_request failed.\n"); 226 ios->kern_buff = fscb;
226 goto out; 227 ios->cred = sbi->s_cred;
227 }
228
229 obj.partition = sbi->s_pid;
230 obj.id = EXOFS_SUPER_ID;
231 ret = osd_req_write_kern(or, &obj, 0, fscb, sizeof(*fscb));
232 if (unlikely(ret)) {
233 EXOFS_ERR("exofs_write_super: osd_req_write_kern failed.\n");
234 goto out;
235 }
236 228
237 ret = exofs_sync_op(or, sbi->s_timeout, sbi->s_cred); 229 ret = exofs_sbi_write(ios);
238 if (unlikely(ret)) { 230 if (unlikely(ret)) {
239 EXOFS_ERR("exofs_write_super: exofs_sync_op failed.\n"); 231 EXOFS_ERR("%s: exofs_sbi_write failed.\n", __func__);
240 goto out; 232 goto out;
241 } 233 }
242 sb->s_dirt = 0; 234 sb->s_dirt = 0;
243 235
244out: 236out:
245 if (or) 237 EXOFS_DBGMSG("s_nextid=0x%llx ret=%d\n", _LLU(sbi->s_nextid), ret);
246 osd_end_request(or); 238 exofs_put_io_state(ios);
247 unlock_super(sb); 239 unlock_super(sb);
248 kfree(fscb);
249 return ret; 240 return ret;
250} 241}
251 242
@@ -302,24 +293,23 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
302 struct inode *root; 293 struct inode *root;
303 struct exofs_mountopt *opts = data; 294 struct exofs_mountopt *opts = data;
304 struct exofs_sb_info *sbi; /*extended info */ 295 struct exofs_sb_info *sbi; /*extended info */
296 struct osd_dev *od; /* Master device */
305 struct exofs_fscb fscb; /*on-disk superblock info */ 297 struct exofs_fscb fscb; /*on-disk superblock info */
306 struct osd_request *or = NULL;
307 struct osd_obj_id obj; 298 struct osd_obj_id obj;
308 int ret; 299 int ret;
309 300
310 sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); 301 sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
311 if (!sbi) 302 if (!sbi)
312 return -ENOMEM; 303 return -ENOMEM;
313 sb->s_fs_info = sbi;
314 304
315 /* use mount options to fill superblock */ 305 /* use mount options to fill superblock */
316 sbi->s_dev = osduld_path_lookup(opts->dev_name); 306 od = osduld_path_lookup(opts->dev_name);
317 if (IS_ERR(sbi->s_dev)) { 307 if (IS_ERR(od)) {
318 ret = PTR_ERR(sbi->s_dev); 308 ret = PTR_ERR(od);
319 sbi->s_dev = NULL;
320 goto free_sbi; 309 goto free_sbi;
321 } 310 }
322 311
312 sbi->s_dev = od;
323 sbi->s_pid = opts->pid; 313 sbi->s_pid = opts->pid;
324 sbi->s_timeout = opts->timeout; 314 sbi->s_timeout = opts->timeout;
325 315
@@ -333,35 +323,13 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
333 sb->s_bdev = NULL; 323 sb->s_bdev = NULL;
334 sb->s_dev = 0; 324 sb->s_dev = 0;
335 325
336 /* read data from on-disk superblock object */
337 obj.partition = sbi->s_pid; 326 obj.partition = sbi->s_pid;
338 obj.id = EXOFS_SUPER_ID; 327 obj.id = EXOFS_SUPER_ID;
339 exofs_make_credential(sbi->s_cred, &obj); 328 exofs_make_credential(sbi->s_cred, &obj);
340 329
341 or = osd_start_request(sbi->s_dev, GFP_KERNEL); 330 ret = exofs_read_kern(od, sbi->s_cred, &obj, 0, &fscb, sizeof(fscb));
342 if (unlikely(!or)) { 331 if (unlikely(ret))
343 if (!silent)
344 EXOFS_ERR(
345 "exofs_fill_super: osd_start_request failed.\n");
346 ret = -ENOMEM;
347 goto free_sbi;
348 }
349 ret = osd_req_read_kern(or, &obj, 0, &fscb, sizeof(fscb));
350 if (unlikely(ret)) {
351 if (!silent)
352 EXOFS_ERR(
353 "exofs_fill_super: osd_req_read_kern failed.\n");
354 ret = -ENOMEM;
355 goto free_sbi;
356 }
357
358 ret = exofs_sync_op(or, sbi->s_timeout, sbi->s_cred);
359 if (unlikely(ret)) {
360 if (!silent)
361 EXOFS_ERR("exofs_fill_super: exofs_sync_op failed.\n");
362 ret = -EIO;
363 goto free_sbi; 332 goto free_sbi;
364 }
365 333
366 sb->s_magic = le16_to_cpu(fscb.s_magic); 334 sb->s_magic = le16_to_cpu(fscb.s_magic);
367 sbi->s_nextid = le64_to_cpu(fscb.s_nextid); 335 sbi->s_nextid = le64_to_cpu(fscb.s_nextid);
@@ -380,6 +348,7 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
380 spin_lock_init(&sbi->s_next_gen_lock); 348 spin_lock_init(&sbi->s_next_gen_lock);
381 349
382 /* set up operation vectors */ 350 /* set up operation vectors */
351 sb->s_fs_info = sbi;
383 sb->s_op = &exofs_sops; 352 sb->s_op = &exofs_sops;
384 sb->s_export_op = &exofs_export_ops; 353 sb->s_export_op = &exofs_export_ops;
385 root = exofs_iget(sb, EXOFS_ROOT_ID - EXOFS_OBJ_OFF); 354 root = exofs_iget(sb, EXOFS_ROOT_ID - EXOFS_OBJ_OFF);
@@ -406,16 +375,14 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
406 } 375 }
407 376
408 _exofs_print_device("Mounting", opts->dev_name, sbi->s_dev, sbi->s_pid); 377 _exofs_print_device("Mounting", opts->dev_name, sbi->s_dev, sbi->s_pid);
409 ret = 0; 378 return 0;
410out:
411 if (or)
412 osd_end_request(or);
413 return ret;
414 379
415free_sbi: 380free_sbi:
381 EXOFS_ERR("Unable to mount exofs on %s pid=0x%llx err=%d\n",
382 opts->dev_name, sbi->s_pid, ret);
416 osduld_put_device(sbi->s_dev); /* NULL safe */ 383 osduld_put_device(sbi->s_dev); /* NULL safe */
417 kfree(sbi); 384 kfree(sbi);
418 goto out; 385 return ret;
419} 386}
420 387
421/* 388/*
@@ -444,7 +411,7 @@ static int exofs_statfs(struct dentry *dentry, struct kstatfs *buf)
444{ 411{
445 struct super_block *sb = dentry->d_sb; 412 struct super_block *sb = dentry->d_sb;
446 struct exofs_sb_info *sbi = sb->s_fs_info; 413 struct exofs_sb_info *sbi = sb->s_fs_info;
447 struct osd_obj_id obj = {sbi->s_pid, 0}; 414 struct exofs_io_state *ios;
448 struct osd_attr attrs[] = { 415 struct osd_attr attrs[] = {
449 ATTR_DEF(OSD_APAGE_PARTITION_QUOTAS, 416 ATTR_DEF(OSD_APAGE_PARTITION_QUOTAS,
450 OSD_ATTR_PQ_CAPACITY_QUOTA, sizeof(__be64)), 417 OSD_ATTR_PQ_CAPACITY_QUOTA, sizeof(__be64)),
@@ -453,26 +420,25 @@ static int exofs_statfs(struct dentry *dentry, struct kstatfs *buf)
453 }; 420 };
454 uint64_t capacity = ULLONG_MAX; 421 uint64_t capacity = ULLONG_MAX;
455 uint64_t used = ULLONG_MAX; 422 uint64_t used = ULLONG_MAX;
456 struct osd_request *or;
457 uint8_t cred_a[OSD_CAP_LEN]; 423 uint8_t cred_a[OSD_CAP_LEN];
458 int ret; 424 int ret;
459 425
460 /* get used/capacity attributes */ 426 ret = exofs_get_io_state(sbi, &ios);
461 exofs_make_credential(cred_a, &obj); 427 if (ret) {
462 428 EXOFS_DBGMSG("exofs_get_io_state failed.\n");
463 or = osd_start_request(sbi->s_dev, GFP_KERNEL); 429 return ret;
464 if (unlikely(!or)) {
465 EXOFS_DBGMSG("exofs_statfs: osd_start_request failed.\n");
466 return -ENOMEM;
467 } 430 }
468 431
469 osd_req_get_attributes(or, &obj); 432 exofs_make_credential(cred_a, &ios->obj);
470 osd_req_add_get_attr_list(or, attrs, ARRAY_SIZE(attrs)); 433 ios->cred = sbi->s_cred;
471 ret = exofs_sync_op(or, sbi->s_timeout, cred_a); 434 ios->in_attr = attrs;
435 ios->in_attr_len = ARRAY_SIZE(attrs);
436
437 ret = exofs_sbi_read(ios);
472 if (unlikely(ret)) 438 if (unlikely(ret))
473 goto out; 439 goto out;
474 440
475 ret = extract_attr_from_req(or, &attrs[0]); 441 ret = extract_attr_from_ios(ios, &attrs[0]);
476 if (likely(!ret)) { 442 if (likely(!ret)) {
477 capacity = get_unaligned_be64(attrs[0].val_ptr); 443 capacity = get_unaligned_be64(attrs[0].val_ptr);
478 if (unlikely(!capacity)) 444 if (unlikely(!capacity))
@@ -480,7 +446,7 @@ static int exofs_statfs(struct dentry *dentry, struct kstatfs *buf)
480 } else 446 } else
481 EXOFS_DBGMSG("exofs_statfs: get capacity failed.\n"); 447 EXOFS_DBGMSG("exofs_statfs: get capacity failed.\n");
482 448
483 ret = extract_attr_from_req(or, &attrs[1]); 449 ret = extract_attr_from_ios(ios, &attrs[1]);
484 if (likely(!ret)) 450 if (likely(!ret))
485 used = get_unaligned_be64(attrs[1].val_ptr); 451 used = get_unaligned_be64(attrs[1].val_ptr);
486 else 452 else
@@ -497,7 +463,7 @@ static int exofs_statfs(struct dentry *dentry, struct kstatfs *buf)
497 buf->f_namelen = EXOFS_NAME_LEN; 463 buf->f_namelen = EXOFS_NAME_LEN;
498 464
499out: 465out:
500 osd_end_request(or); 466 exofs_put_io_state(ios);
501 return ret; 467 return ret;
502} 468}
503 469
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-25 10:02:35 -0500