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Subject[PATCH 013 of 20] knfsd: nfsd: factor out code from show_expflags

From: J. Bruce Fields <bfields@citi.umich.edu>

Factor out some code to be shared by secinfo display code. Remove some
unnecessary conditional printing of commas where we know the condition
is true.

Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>

### Diffstat output
./fs/nfsd/export.c | 23 +++++++++++++++--------
1 file changed, 15 insertions(+), 8 deletions(-)
diff .prev/fs/nfsd/export.c ./fs/nfsd/export.c
--- .prev/fs/nfsd/export.c 2007-07-10 11:39:34.000000000 +1000
+++ ./fs/nfsd/export.c 2007-07-10 11:46:05.000000000 +1000
@@ -1453,28 +1453,35 @@ static struct flags {
{ 0, {"", ""}}
};

-static void exp_flags(struct seq_file *m, int flag, int fsid,
- uid_t anonu, uid_t anong, struct nfsd4_fs_locations *fsloc)
+static void show_expflags(struct seq_file *m, int flags, int mask)
{
- int first = 0;
struct flags *flg;
+ int state, first = 0;

for (flg = expflags; flg->flag; flg++) {
- int state = (flg->flag & flag)?0:1;
+ if (flg->flag & ~mask)
+ continue;
+ state = (flg->flag & flags) ? 0 : 1;
if (*flg->name[state])
seq_printf(m, "%s%s", first++?",":"", flg->name[state]);
}
+}
+
+static void exp_flags(struct seq_file *m, int flag, int fsid,
+ uid_t anonu, uid_t anong, struct nfsd4_fs_locations *fsloc)
+{
+ show_expflags(m, flag, NFSEXP_ALLFLAGS);
if (flag & NFSEXP_FSID)
- seq_printf(m, "%sfsid=%d", first++?",":"", fsid);
+ seq_printf(m, ",fsid=%d", fsid);
if (anonu != (uid_t)-2 && anonu != (0x10000-2))
- seq_printf(m, "%sanonuid=%d", first++?",":"", anonu);
+ seq_printf(m, ",sanonuid=%d", anonu);
if (anong != (gid_t)-2 && anong != (0x10000-2))
- seq_printf(m, "%sanongid=%d", first++?",":"", anong);
+ seq_printf(m, ",sanongid=%d", anong);
if (fsloc && fsloc->locations_count > 0) {
char *loctype = (fsloc->migrated) ? "refer" : "replicas";
int i;

- seq_printf(m, "%s%s=", first++?",":"", loctype);
+ seq_printf(m, ",%s=", loctype);
seq_escape(m, fsloc->locations[0].path, ",;@ \t\n\\");
seq_putc(m, '@');
seq_escape(m, fsloc->locations[0].hosts, ",;@ \t\n\\");
-
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