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gfs2: use is_subdir()

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... instead of reimplementing it with misguiding name (is_ancestor(x, y)
would normally imply "x is an ancestor of y", not the other way round).
With races, while we are at it...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Al Viro 2023-12-20 05:31:57 +00:00 committed by Andreas Gruenbacher
parent 34d7224643
commit 34d63b8162
1 changed files with 1 additions and 11 deletions
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12
fs/gfs2/super.c
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@ -1065,16 +1065,6 @@ static int gfs2_drop_inode(struct inode *inode)
return generic_drop_inode(inode);
}
static int is_ancestor(const struct dentry *d1, const struct dentry *d2)
{
do {
if (d1 == d2)
return 1;
d1 = d1->d_parent;
} while (!IS_ROOT(d1));
return 0;
}
/**
* gfs2_show_options - Show mount options for /proc/mounts
* @s: seq_file structure
@ -1096,7 +1086,7 @@ static int gfs2_show_options(struct seq_file *s, struct dentry *root)
statfs_slow = sdp->sd_tune.gt_statfs_slow;
spin_unlock(&sdp->sd_tune.gt_spin);
if (is_ancestor(root, sdp->sd_master_dir))
if (is_subdir(root, sdp->sd_master_dir))
seq_puts(s, ",meta");
if (args->ar_lockproto[0])
seq_show_option(s, "lockproto", args->ar_lockproto);