From 126622343a8488917c5e0891eae1bc936a63f49a Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Fri, 5 Dec 2014 14:37:37 -0800
Subject: f2fs: release inmemory pages when the file was closed

If file is closed, let's drop inmemory pages.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 146e58a..b6f3fbf 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -901,6 +901,14 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
 	return f2fs_convert_inline_inode(inode);
 }
 
+static int f2fs_release_file(struct inode *inode, struct file *filp)
+{
+	/* some remained atomic pages should discarded */
+	if (f2fs_is_atomic_file(inode) || f2fs_is_volatile_file(inode))
+		commit_inmem_pages(inode, true);
+	return 0;
+}
+
 static int f2fs_ioc_commit_atomic_write(struct file *filp)
 {
 	struct inode *inode = file_inode(filp);
@@ -1010,6 +1018,7 @@ const struct file_operations f2fs_file_operations = {
 	.read_iter	= generic_file_read_iter,
 	.write_iter	= generic_file_write_iter,
 	.open		= generic_file_open,
+	.release	= f2fs_release_file,
 	.mmap		= f2fs_file_mmap,
 	.fsync		= f2fs_sync_file,
 	.fallocate	= f2fs_fallocate,
-- 
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