shmem.c (860f2759d94bf9db637d85d75d074de88af54688) shmem.c (5f00110f7273f9ff04ac69a5f85bb535a4fd0987)
1/*
2 * Resizable virtual memory filesystem for Linux.
3 *
4 * Copyright (C) 2000 Linus Torvalds.
5 * 2000 Transmeta Corp.
6 * 2000-2001 Christoph Rohland
7 * 2000-2001 SAP AG
8 * 2002 Red Hat Inc.

--- 2472 unchanged lines hidden (view full) ---

2481
2482static int shmem_remount_fs(struct super_block *sb, int *flags, char *data)
2483{
2484 struct shmem_sb_info *sbinfo = SHMEM_SB(sb);
2485 struct shmem_sb_info config = *sbinfo;
2486 unsigned long inodes;
2487 int error = -EINVAL;
2488
1/*
2 * Resizable virtual memory filesystem for Linux.
3 *
4 * Copyright (C) 2000 Linus Torvalds.
5 * 2000 Transmeta Corp.
6 * 2000-2001 Christoph Rohland
7 * 2000-2001 SAP AG
8 * 2002 Red Hat Inc.

--- 2472 unchanged lines hidden (view full) ---

2481
2482static int shmem_remount_fs(struct super_block *sb, int *flags, char *data)
2483{
2484 struct shmem_sb_info *sbinfo = SHMEM_SB(sb);
2485 struct shmem_sb_info config = *sbinfo;
2486 unsigned long inodes;
2487 int error = -EINVAL;
2488
2489 config.mpol = NULL;
2489 if (shmem_parse_options(data, &config, true))
2490 return error;
2491
2492 spin_lock(&sbinfo->stat_lock);
2493 inodes = sbinfo->max_inodes - sbinfo->free_inodes;
2494 if (percpu_counter_compare(&sbinfo->used_blocks, config.max_blocks) > 0)
2495 goto out;
2496 if (config.max_inodes < inodes)

--- 8 unchanged lines hidden (view full) ---

2505 if (config.max_inodes && !sbinfo->max_inodes)
2506 goto out;
2507
2508 error = 0;
2509 sbinfo->max_blocks = config.max_blocks;
2510 sbinfo->max_inodes = config.max_inodes;
2511 sbinfo->free_inodes = config.max_inodes - inodes;
2512
2490 if (shmem_parse_options(data, &config, true))
2491 return error;
2492
2493 spin_lock(&sbinfo->stat_lock);
2494 inodes = sbinfo->max_inodes - sbinfo->free_inodes;
2495 if (percpu_counter_compare(&sbinfo->used_blocks, config.max_blocks) > 0)
2496 goto out;
2497 if (config.max_inodes < inodes)

--- 8 unchanged lines hidden (view full) ---

2506 if (config.max_inodes && !sbinfo->max_inodes)
2507 goto out;
2508
2509 error = 0;
2510 sbinfo->max_blocks = config.max_blocks;
2511 sbinfo->max_inodes = config.max_inodes;
2512 sbinfo->free_inodes = config.max_inodes - inodes;
2513
2513 mpol_put(sbinfo->mpol);
2514 sbinfo->mpol = config.mpol; /* transfers initial ref */
2514 /*
2515 * Preserve previous mempolicy unless mpol remount option was specified.
2516 */
2517 if (config.mpol) {
2518 mpol_put(sbinfo->mpol);
2519 sbinfo->mpol = config.mpol; /* transfers initial ref */
2520 }
2515out:
2516 spin_unlock(&sbinfo->stat_lock);
2517 return error;
2518}
2519
2520static int shmem_show_options(struct seq_file *seq, struct dentry *root)
2521{
2522 struct shmem_sb_info *sbinfo = SHMEM_SB(root->d_sb);

--- 466 unchanged lines hidden --- 		2521out:
2522 spin_unlock(&sbinfo->stat_lock);
2523 return error;
2524}
2525
2526static int shmem_show_options(struct seq_file *seq, struct dentry *root)
2527{
2528 struct shmem_sb_info *sbinfo = SHMEM_SB(root->d_sb);

--- 466 unchanged lines hidden ---