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>

1 files changed, 9 insertions, 0 deletions

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 146e58ab716e..b6f3fbf2a376 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,