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| author | John Stultz <johnstul@us.ibm.com> | 2010-02-25 20:03:00 -0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-04-27 17:33:01 +0200 |
| commit | c76dc638bfdaa5733d1ff6bfdda87721fde340c8 (patch) | |
| tree | 55f4ddac939fbd873cc68fec0351f2a6d215ffd3 | |
| parent | 9e0b2cfd72583db7ad50e3e73958926fb65e0557 (diff) | |
| download | lwn-c76dc638bfdaa5733d1ff6bfdda87721fde340c8.tar.gz lwn-c76dc638bfdaa5733d1ff6bfdda87721fde340c8.zip | |
Make sure MNT_MOUNTED isn't cleared on remount
Originally found by Anton Blanchard, this patch makes sure
we keep the MNT_MOUNTED flag set in do_remount(). Without this
scalability suffers pretty badly.
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | fs/namespace.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index c1632069b06c..5459a05e8aa5 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1731,6 +1731,7 @@ static int do_remount(struct path *path, int flags, int mnt_flags, if (!err) { vfsmount_write_lock(); mnt_flags |= path->mnt->mnt_flags & MNT_PNODE_MASK; + mnt_flags |= path->mnt->mnt_flags & MNT_MOUNTED; path->mnt->mnt_flags = mnt_flags; vfsmount_write_unlock(); } |