From: Harshad Shirwadkar <harshadshirwadkar@xxxxxxxxx>
We are running out of mount option bits. Add handling for using
s_mount_opt2. This patch was originally submitted as a part of fast
commit patch series. Resending it here with this patch series too.
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@xxxxxxxxx>
Reviewed-by: Andreas Dilger <adilger@xxxxxxxxx>
---
fs/ext4/super.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 13bdddc081e0..656eccf6fc9b 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1738,6 +1738,7 @@ static int clear_qf_name(struct super_block *sb, int qtype)
#define MOPT_EXT4_ONLY (MOPT_NO_EXT2 | MOPT_NO_EXT3)
#define MOPT_STRING 0x0400
#define MOPT_SKIP 0x0800
+#define MOPT_2 0x1000
static const struct mount_opts {
int token;
@@ -2207,10 +2208,17 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token,
WARN_ON(1);
return -1;
}
- if (arg != 0)
- sbi->s_mount_opt |= m->mount_opt;
- else
- sbi->s_mount_opt &= ~m->mount_opt;
+ if (m->flags & MOPT_2) {
+ if (arg != 0)
+ sbi->s_mount_opt2 |= m->mount_opt;
+ else
+ sbi->s_mount_opt2 &= ~m->mount_opt;
+ } else {
+ if (arg != 0)
+ sbi->s_mount_opt |= m->mount_opt;
+ else
+ sbi->s_mount_opt &= ~m->mount_opt;
+ }
}
return 1;
}
--
2.28.0.297.g1956fa8f8d-goog
