A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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switch mnt_hash to hlist

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fixes RCU bug - walking through hlist is safe in face of element moves,
since it's self-terminating.  Cyclic lists are not - if we end up jumping
to another hash chain, we'll loop infinitely without ever hitting the
original list head.

[fix for dumb braino folded]

Spotted by: Max Kellermann <[email protected]>
Cc: [email protected]
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2014-03-20 21:10:51 -04:00
commit 38129a13e6
4 changed files with 61 additions and 50 deletions
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2
fs/mount.h
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@ -25,7 +25,7 @@ struct mountpoint {
};
struct mount {
struct list_head mnt_hash;
struct hlist_node mnt_hash;
struct mount *mnt_parent;
struct dentry *mnt_mountpoint;
struct vfsmount mnt;