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Diffstat (limited to 'fs/minix/inode.c')
-rw-r--r--fs/minix/inode.c43
1 files changed, 29 insertions, 14 deletions
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index bf4cd316af81..84f6242ba6fc 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -18,7 +18,6 @@
18#include <linux/highuid.h> 18#include <linux/highuid.h>
19#include <linux/vfs.h> 19#include <linux/vfs.h>
20 20
21static void minix_read_inode(struct inode * inode);
22static int minix_write_inode(struct inode * inode, int wait); 21static int minix_write_inode(struct inode * inode, int wait);
23static int minix_statfs(struct dentry *dentry, struct kstatfs *buf); 22static int minix_statfs(struct dentry *dentry, struct kstatfs *buf);
24static int minix_remount (struct super_block * sb, int * flags, char * data); 23static int minix_remount (struct super_block * sb, int * flags, char * data);
@@ -96,7 +95,6 @@ static void destroy_inodecache(void)
96static const struct super_operations minix_sops = { 95static const struct super_operations minix_sops = {
97 .alloc_inode = minix_alloc_inode, 96 .alloc_inode = minix_alloc_inode,
98 .destroy_inode = minix_destroy_inode, 97 .destroy_inode = minix_destroy_inode,
99 .read_inode = minix_read_inode,
100 .write_inode = minix_write_inode, 98 .write_inode = minix_write_inode,
101 .delete_inode = minix_delete_inode, 99 .delete_inode = minix_delete_inode,
102 .put_super = minix_put_super, 100 .put_super = minix_put_super,
@@ -149,6 +147,7 @@ static int minix_fill_super(struct super_block *s, void *data, int silent)
149 unsigned long i, block; 147 unsigned long i, block;
150 struct inode *root_inode; 148 struct inode *root_inode;
151 struct minix_sb_info *sbi; 149 struct minix_sb_info *sbi;
150 int ret = -EINVAL;
152 151
153 sbi = kzalloc(sizeof(struct minix_sb_info), GFP_KERNEL); 152 sbi = kzalloc(sizeof(struct minix_sb_info), GFP_KERNEL);
154 if (!sbi) 153 if (!sbi)
@@ -246,10 +245,13 @@ static int minix_fill_super(struct super_block *s, void *data, int silent)
246 245
247 /* set up enough so that it can read an inode */ 246 /* set up enough so that it can read an inode */
248 s->s_op = &minix_sops; 247 s->s_op = &minix_sops;
249 root_inode = iget(s, MINIX_ROOT_INO); 248 root_inode = minix_iget(s, MINIX_ROOT_INO);
250 if (!root_inode || is_bad_inode(root_inode)) 249 if (IS_ERR(root_inode)) {
250 ret = PTR_ERR(root_inode);
251 goto out_no_root; 251 goto out_no_root;
252 }
252 253
254 ret = -ENOMEM;
253 s->s_root = d_alloc_root(root_inode); 255 s->s_root = d_alloc_root(root_inode);
254 if (!s->s_root) 256 if (!s->s_root)
255 goto out_iput; 257 goto out_iput;
@@ -290,6 +292,7 @@ out_freemap:
290 goto out_release; 292 goto out_release;
291 293
292out_no_map: 294out_no_map:
295 ret = -ENOMEM;
293 if (!silent) 296 if (!silent)
294 printk("MINIX-fs: can't allocate map\n"); 297 printk("MINIX-fs: can't allocate map\n");
295 goto out_release; 298 goto out_release;
@@ -316,7 +319,7 @@ out_bad_sb:
316out: 319out:
317 s->s_fs_info = NULL; 320 s->s_fs_info = NULL;
318 kfree(sbi); 321 kfree(sbi);
319 return -EINVAL; 322 return ret;
320} 323}
321 324
322static int minix_statfs(struct dentry *dentry, struct kstatfs *buf) 325static int minix_statfs(struct dentry *dentry, struct kstatfs *buf)
@@ -409,7 +412,7 @@ void minix_set_inode(struct inode *inode, dev_t rdev)
409/* 412/*
410 * The minix V1 function to read an inode. 413 * The minix V1 function to read an inode.
411 */ 414 */
412static void V1_minix_read_inode(struct inode * inode) 415static struct inode *V1_minix_iget(struct inode *inode)
413{ 416{
414 struct buffer_head * bh; 417 struct buffer_head * bh;
415 struct minix_inode * raw_inode; 418 struct minix_inode * raw_inode;
@@ -418,8 +421,8 @@ static void V1_minix_read_inode(struct inode * inode)
418 421
419 raw_inode = minix_V1_raw_inode(inode->i_sb, inode->i_ino, &bh); 422 raw_inode = minix_V1_raw_inode(inode->i_sb, inode->i_ino, &bh);
420 if (!raw_inode) { 423 if (!raw_inode) {
421 make_bad_inode(inode); 424 iget_failed(inode);
422 return; 425 return ERR_PTR(-EIO);
423 } 426 }
424 inode->i_mode = raw_inode->i_mode; 427 inode->i_mode = raw_inode->i_mode;
425 inode->i_uid = (uid_t)raw_inode->i_uid; 428 inode->i_uid = (uid_t)raw_inode->i_uid;
@@ -435,12 +438,14 @@ static void V1_minix_read_inode(struct inode * inode)
435 minix_inode->u.i1_data[i] = raw_inode->i_zone[i]; 438 minix_inode->u.i1_data[i] = raw_inode->i_zone[i];
436 minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0])); 439 minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0]));
437 brelse(bh); 440 brelse(bh);
441 unlock_new_inode(inode);
442 return inode;
438} 443}
439 444
440/* 445/*
441 * The minix V2 function to read an inode. 446 * The minix V2 function to read an inode.
442 */ 447 */
443static void V2_minix_read_inode(struct inode * inode) 448static struct inode *V2_minix_iget(struct inode *inode)
444{ 449{
445 struct buffer_head * bh; 450 struct buffer_head * bh;
446 struct minix2_inode * raw_inode; 451 struct minix2_inode * raw_inode;
@@ -449,8 +454,8 @@ static void V2_minix_read_inode(struct inode * inode)
449 454
450 raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh); 455 raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh);
451 if (!raw_inode) { 456 if (!raw_inode) {
452 make_bad_inode(inode); 457 iget_failed(inode);
453 return; 458 return ERR_PTR(-EIO);
454 } 459 }
455 inode->i_mode = raw_inode->i_mode; 460 inode->i_mode = raw_inode->i_mode;
456 inode->i_uid = (uid_t)raw_inode->i_uid; 461 inode->i_uid = (uid_t)raw_inode->i_uid;
@@ -468,17 +473,27 @@ static void V2_minix_read_inode(struct inode * inode)
468 minix_inode->u.i2_data[i] = raw_inode->i_zone[i]; 473 minix_inode->u.i2_data[i] = raw_inode->i_zone[i];
469 minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0])); 474 minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0]));
470 brelse(bh); 475 brelse(bh);
476 unlock_new_inode(inode);
477 return inode;
471} 478}
472 479
473/* 480/*
474 * The global function to read an inode. 481 * The global function to read an inode.
475 */ 482 */
476static void minix_read_inode(struct inode * inode) 483struct inode *minix_iget(struct super_block *sb, unsigned long ino)
477{ 484{
485 struct inode *inode;
486
487 inode = iget_locked(sb, ino);
488 if (!inode)
489 return ERR_PTR(-ENOMEM);
490 if (!(inode->i_state & I_NEW))
491 return inode;
492
478 if (INODE_VERSION(inode) == MINIX_V1) 493 if (INODE_VERSION(inode) == MINIX_V1)
479 V1_minix_read_inode(inode); 494 return V1_minix_iget(inode);
480 else 495 else
481 V2_minix_read_inode(inode); 496 return V2_minix_iget(inode);
482} 497}
483 498
484/* 499/*