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Diffstat (limited to 'fs/sysv/super.c')
-rw-r--r--fs/sysv/super.c41
1 files changed, 22 insertions, 19 deletions
diff --git a/fs/sysv/super.c b/fs/sysv/super.c
index 3d9c62be0c1..eda10959714 100644
--- a/fs/sysv/super.c
+++ b/fs/sysv/super.c
@@ -44,7 +44,7 @@ enum {
JAN_1_1980 = (10*365 + 2) * 24 * 60 * 60
};
-static void detected_xenix(struct sysv_sb_info *sbi)
+static void detected_xenix(struct sysv_sb_info *sbi, unsigned *max_links)
{
struct buffer_head *bh1 = sbi->s_bh1;
struct buffer_head *bh2 = sbi->s_bh2;
@@ -59,7 +59,7 @@ static void detected_xenix(struct sysv_sb_info *sbi)
sbd2 = (struct xenix_super_block *) (bh2->b_data - 512);
}
- sbi->s_link_max = XENIX_LINK_MAX;
+ *max_links = XENIX_LINK_MAX;
sbi->s_fic_size = XENIX_NICINOD;
sbi->s_flc_size = XENIX_NICFREE;
sbi->s_sbd1 = (char *)sbd1;
@@ -75,7 +75,7 @@ static void detected_xenix(struct sysv_sb_info *sbi)
sbi->s_nzones = fs32_to_cpu(sbi, sbd1->s_fsize);
}
-static void detected_sysv4(struct sysv_sb_info *sbi)
+static void detected_sysv4(struct sysv_sb_info *sbi, unsigned *max_links)
{
struct sysv4_super_block * sbd;
struct buffer_head *bh1 = sbi->s_bh1;
@@ -86,7 +86,7 @@ static void detected_sysv4(struct sysv_sb_info *sbi)
else
sbd = (struct sysv4_super_block *) bh2->b_data;
- sbi->s_link_max = SYSV_LINK_MAX;
+ *max_links = SYSV_LINK_MAX;
sbi->s_fic_size = SYSV_NICINOD;
sbi->s_flc_size = SYSV_NICFREE;
sbi->s_sbd1 = (char *)sbd;
@@ -103,7 +103,7 @@ static void detected_sysv4(struct sysv_sb_info *sbi)
sbi->s_nzones = fs32_to_cpu(sbi, sbd->s_fsize);
}
-static void detected_sysv2(struct sysv_sb_info *sbi)
+static void detected_sysv2(struct sysv_sb_info *sbi, unsigned *max_links)
{
struct sysv2_super_block *sbd;
struct buffer_head *bh1 = sbi->s_bh1;
@@ -114,7 +114,7 @@ static void detected_sysv2(struct sysv_sb_info *sbi)
else
sbd = (struct sysv2_super_block *) bh2->b_data;
- sbi->s_link_max = SYSV_LINK_MAX;
+ *max_links = SYSV_LINK_MAX;
sbi->s_fic_size = SYSV_NICINOD;
sbi->s_flc_size = SYSV_NICFREE;
sbi->s_sbd1 = (char *)sbd;
@@ -131,14 +131,14 @@ static void detected_sysv2(struct sysv_sb_info *sbi)
sbi->s_nzones = fs32_to_cpu(sbi, sbd->s_fsize);
}
-static void detected_coherent(struct sysv_sb_info *sbi)
+static void detected_coherent(struct sysv_sb_info *sbi, unsigned *max_links)
{
struct coh_super_block * sbd;
struct buffer_head *bh1 = sbi->s_bh1;
sbd = (struct coh_super_block *) bh1->b_data;
- sbi->s_link_max = COH_LINK_MAX;
+ *max_links = COH_LINK_MAX;
sbi->s_fic_size = COH_NICINOD;
sbi->s_flc_size = COH_NICFREE;
sbi->s_sbd1 = (char *)sbd;
@@ -154,12 +154,12 @@ static void detected_coherent(struct sysv_sb_info *sbi)
sbi->s_nzones = fs32_to_cpu(sbi, sbd->s_fsize);
}
-static void detected_v7(struct sysv_sb_info *sbi)
+static void detected_v7(struct sysv_sb_info *sbi, unsigned *max_links)
{
struct buffer_head *bh2 = sbi->s_bh2;
struct v7_super_block *sbd = (struct v7_super_block *)bh2->b_data;
- sbi->s_link_max = V7_LINK_MAX;
+ *max_links = V7_LINK_MAX;
sbi->s_fic_size = V7_NICINOD;
sbi->s_flc_size = V7_NICFREE;
sbi->s_sbd1 = (char *)sbd;
@@ -290,7 +290,7 @@ static char *flavour_names[] = {
[FSTYPE_AFS] = "AFS",
};
-static void (*flavour_setup[])(struct sysv_sb_info *) = {
+static void (*flavour_setup[])(struct sysv_sb_info *, unsigned *) = {
[FSTYPE_XENIX] = detected_xenix,
[FSTYPE_SYSV4] = detected_sysv4,
[FSTYPE_SYSV2] = detected_sysv2,
@@ -310,7 +310,7 @@ static int complete_read_super(struct super_block *sb, int silent, int size)
sbi->s_firstinodezone = 2;
- flavour_setup[sbi->s_type](sbi);
+ flavour_setup[sbi->s_type](sbi, &sb->s_max_links);
sbi->s_truncate = 1;
sbi->s_ndatazones = sbi->s_nzones - sbi->s_firstdatazone;
@@ -332,21 +332,20 @@ static int complete_read_super(struct super_block *sb, int silent, int size)
sb->s_magic = SYSV_MAGIC_BASE + sbi->s_type;
/* set up enough so that it can read an inode */
sb->s_op = &sysv_sops;
+ if (sbi->s_forced_ro)
+ sb->s_flags |= MS_RDONLY;
+ if (sbi->s_truncate)
+ sb->s_d_op = &sysv_dentry_operations;
root_inode = sysv_iget(sb, SYSV_ROOT_INO);
if (IS_ERR(root_inode)) {
printk("SysV FS: get root inode failed\n");
return 0;
}
- sb->s_root = d_alloc_root(root_inode);
+ sb->s_root = d_make_root(root_inode);
if (!sb->s_root) {
- iput(root_inode);
printk("SysV FS: get root dentry failed\n");
return 0;
}
- if (sbi->s_forced_ro)
- sb->s_flags |= MS_RDONLY;
- if (sbi->s_truncate)
- sb->s_root->d_op = &sysv_dentry_operations;
return 1;
}
@@ -369,6 +368,7 @@ static int sysv_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_sb = sb;
sbi->s_block_base = 0;
+ mutex_init(&sbi->s_lock);
sb->s_fs_info = sbi;
sb_set_blocksize(sb, BLOCK_SIZE);
@@ -487,6 +487,7 @@ static int v7_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_sb = sb;
sbi->s_block_base = 0;
sbi->s_type = FSTYPE_V7;
+ mutex_init(&sbi->s_lock);
sb->s_fs_info = sbi;
sb_set_blocksize(sb, 512);
@@ -545,6 +546,7 @@ static struct file_system_type sysv_fs_type = {
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
+MODULE_ALIAS_FS("sysv");
static struct file_system_type v7_fs_type = {
.owner = THIS_MODULE,
@@ -553,6 +555,8 @@ static struct file_system_type v7_fs_type = {
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
+MODULE_ALIAS_FS("v7");
+MODULE_ALIAS("v7");
static int __init init_sysv_fs(void)
{
@@ -586,5 +590,4 @@ static void __exit exit_sysv_fs(void)
module_init(init_sysv_fs)
module_exit(exit_sysv_fs)
-MODULE_ALIAS("v7");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 13:08:12 +0000