Hi,
This is a trivial patch to protect super_block flags.
super_block flags must be protected by the proper semaphore
when modifying it.
Signed-off-by: Jiro SEKIBA <jir@xxxxxxxxx>
---
fs/nilfs2/super.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 8173fae..3ee02b8 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -110,7 +110,9 @@ void nilfs_error(struct super_block *sb, const char *function,
if (nilfs_test_opt(sbi, ERRORS_RO)) {
printk(KERN_CRIT "Remounting filesystem read-only\n");
+ down_write(&nilfs->ns_super_sem);
sb->s_flags |= MS_RDONLY;
+ up_write(&nilfs->ns_super_sem);
}
}
--
1.5.6.5
--
To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
