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authorJ. Bruce Fields <bfields@redhat.com>2010-09-24 17:43:59 -0400
committerJ. Bruce Fields <bfields@redhat.com>2010-09-26 14:48:25 -0400
commit74ec1e1269eba65b5f8e810cf0363ddb7aa64de5 (patch)
tree11b0ab0612f275b0ddff4077be3ba8ee46f78f6c /fs/nfsd/export.c
parent049ef27b224ecc33958465fef83d5e4e8a056115 (diff)
nfsd: fix /proc/net/rpc/nfsd.export/content display
Note with "first" always 0, and "lastflags" initially 0, we always dump a spurious set of 0 flags at the start, among other problems. Fix. And attempt to make the code a little more obvious. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/export.c')
-rw-r--r--fs/nfsd/export.c40
1 files changed, 29 insertions, 11 deletions
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index a3c7d0ceb24f..067e2e612e2d 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -1470,25 +1470,43 @@ static void show_secinfo_flags(struct seq_file *m, int flags)
show_expflags(m, flags, NFSEXP_SECINFO_FLAGS);
}
+static bool secinfo_flags_equal(int f, int g)
+{
+ f &= NFSEXP_SECINFO_FLAGS;
+ g &= NFSEXP_SECINFO_FLAGS;
+ return f == g;
+}
+
+static int show_secinfo_run(struct seq_file *m, struct exp_flavor_info **fp, struct exp_flavor_info *end)
+{
+ int flags;
+
+ flags = (*fp)->flags;
+ seq_printf(m, ",sec=%d", (*fp)->pseudoflavor);
+ (*fp)++;
+ while (*fp != end && secinfo_flags_equal(flags, (*fp)->flags)) {
+ seq_printf(m, ":%d", (*fp)->pseudoflavor);
+ (*fp)++;
+ }
+ return flags;
+}
+
static void show_secinfo(struct seq_file *m, struct svc_export *exp)
{
struct exp_flavor_info *f;
struct exp_flavor_info *end = exp->ex_flavors + exp->ex_nflavors;
- int lastflags = 0, first = 0;
+ int flags;
if (exp->ex_nflavors == 0)
return;
- for (f = exp->ex_flavors; f < end; f++) {
- if (first || f->flags != lastflags) {
- if (!first)
- show_secinfo_flags(m, lastflags);
- seq_printf(m, ",sec=%d", f->pseudoflavor);
- lastflags = f->flags;
- } else {
- seq_printf(m, ":%d", f->pseudoflavor);
- }
+ f = exp->ex_flavors;
+ flags = show_secinfo_run(m, &f, end);
+ if (!secinfo_flags_equal(flags, exp->ex_flags))
+ show_secinfo_flags(m, flags);
+ while (f != end) {
+ flags = show_secinfo_run(m, &f, end);
+ show_secinfo_flags(m, flags);
}
- show_secinfo_flags(m, lastflags);
}
static void exp_flags(struct seq_file *m, int flag, int fsid,