[RFC PATCH v2 08/20] fs/inode.c: export inode_lru_list_del()
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STALE2807d
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From: Eric Biggers <ebiggers@kernel.org>
Date: 2019-02-11 17:30:30
Also in:
keyrings, linux-api, linux-ext4, linux-f2fs-devel, linux-fscrypt, linux-fsdevel
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
Revision v2 of 7 in this series.
Revisions (7)
From: Eric Biggers <redacted> 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 <redacted> --- 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 *);
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2.20.1