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SubjectRe: [PATCH] fs/super.c stuff (6/10)
diff -urN S6-pre2-dquot/arch/parisc/hpux/sys_hpux.c S6-pre2-drop_super/arch/parisc/hpux/sys_hpux.c
--- S6-pre2-dquot/arch/parisc/hpux/sys_hpux.c Fri Feb 16 20:46:44 2001
+++ S6-pre2-drop_super/arch/parisc/hpux/sys_hpux.c Sun Jun 10 18:38:23 2001
@@ -109,9 +109,11 @@

lock_kernel();
s = get_super(to_kdev_t(dev));
+ unlock_kernel();
if (s == NULL)
goto out;
err = vfs_statfs(s, &sbuf);
+ drop_super(s);
if (err)
goto out;

@@ -124,7 +126,6 @@
/* Changed to hpux_ustat: */
err = copy_to_user(ubuf,&tmp,sizeof(struct hpux_ustat)) ? -EFAULT : 0;
out:
- unlock_kernel();
return err;
}

diff -urN S6-pre2-dquot/fs/dquot.c S6-pre2-drop_super/fs/dquot.c
--- S6-pre2-dquot/fs/dquot.c Sun Jun 10 18:46:54 2001
+++ S6-pre2-drop_super/fs/dquot.c Sun Jun 10 18:38:23 2001
@@ -1602,6 +1602,8 @@
if (sb && sb_has_quota_enabled(sb, type))
ret = set_dqblk(sb, id, type, flags, (struct dqblk *) addr);
out:
+ if (sb)
+ drop_super(sb);
unlock_kernel();
return ret;
}
diff -urN S6-pre2-dquot/fs/inode.c S6-pre2-drop_super/fs/inode.c
--- S6-pre2-dquot/fs/inode.c Sun Jun 10 18:43:02 2001
+++ S6-pre2-drop_super/fs/inode.c Sun Jun 10 18:38:23 2001
@@ -605,8 +605,10 @@
fsync_dev(dev);

res = 0;
- if (sb)
+ if (sb) {
res = invalidate_inodes(sb);
+ drop_super(sb);
+ }
invalidate_buffers(dev);
return res;
}
diff -urN S6-pre2-dquot/fs/super.c S6-pre2-drop_super/fs/super.c
--- S6-pre2-dquot/fs/super.c Sun Jun 10 18:36:27 2001
+++ S6-pre2-drop_super/fs/super.c Sun Jun 10 18:38:23 2001
@@ -491,7 +491,6 @@
kill_super(sb);
}

-
/* Use octal escapes, like mount does, for embedded spaces etc. */
static unsigned char need_escaping[] = { ' ', '\t', '\n', '\\' };

@@ -640,6 +639,10 @@
#undef MANGLE
#undef FREEROOM
}
+
+void drop_super(struct super_block *sb)
+{
+}

/*
* Note: check the dirty flag before waiting, so we don't
@@ -709,6 +712,7 @@
if (s == NULL)
goto out;
err = vfs_statfs(s, &sbuf);
+ drop_super(s);
if (err)
goto out;

diff -urN S6-pre2-dquot/include/linux/fs.h S6-pre2-drop_super/include/linux/fs.h
--- S6-pre2-dquot/include/linux/fs.h Sun Jun 10 18:39:04 2001
+++ S6-pre2-drop_super/include/linux/fs.h Sun Jun 10 18:38:31 2001
@@ -1320,11 +1320,12 @@

extern struct file_system_type *get_fs_type(const char *name);
extern struct super_block *get_super(kdev_t);
+extern void drop_super(struct super_block *sb);
static inline int is_mounted(kdev_t dev)
{
struct super_block *sb = get_super(dev);
if (sb) {
- /* drop_super(sb); will go here */
+ drop_super(sb);
return 1;
}
return 0;
diff -urN S6-pre2-dquot/kernel/ksyms.c S6-pre2-drop_super/kernel/ksyms.c
--- S6-pre2-dquot/kernel/ksyms.c Fri Jun 8 18:29:03 2001
+++ S6-pre2-drop_super/kernel/ksyms.c Sun Jun 10 18:38:23 2001
@@ -129,6 +129,7 @@
EXPORT_SYMBOL(update_atime);
EXPORT_SYMBOL(get_fs_type);
EXPORT_SYMBOL(get_super);
+EXPORT_SYMBOL(drop_super);
EXPORT_SYMBOL(getname);
EXPORT_SYMBOL(names_cachep);
EXPORT_SYMBOL(fput);


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