From: Eric Biggers <ebiggers@xxxxxxxxxx>
When a filesystem encryption key is removed, we need all files which had
been "unlocked" (had ->i_crypt_info set up) with it to appear "locked"
again. This is most easily done by evicting the inodes. This can
currently be done using 'echo 2 > /proc/sys/vm/drop_caches'; however,
that is overkill and not usable by non-root users.
In preparation for allowing fs/crypto/ to evict just the needed inodes,
make inode_lru_list_del() non-static.
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
fs/inode.c | 4 +---
include/linux/fs.h | 1 +
2 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/fs/inode.c b/fs/inode.c
index 0cd47fe0dbe5..037df483c9af 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -426,10 +426,8 @@ void inode_add_lru(struct inode *inode)
inode_lru_list_add(inode);
}
-
-static void inode_lru_list_del(struct inode *inode)
+void inode_lru_list_del(struct inode *inode)
{
-
if (list_lru_del(&inode->i_sb->s_inode_lru, &inode->i_lru))
this_cpu_dec(nr_unused);
}
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 70d929ac89f9..326cbb044596 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2986,6 +2986,7 @@ extern void unlock_new_inode(struct inode *);
extern void discard_new_inode(struct inode *);
extern unsigned int get_next_ino(void);
extern void evict_inodes(struct super_block *sb);
+extern void inode_lru_list_del(struct inode *inode);
extern void __iget(struct inode * inode);
extern void iget_failed(struct inode *);
--
2.20.1
