From b0c013e2928d3696ceb6401311dbc1d7fcccd6dd Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sun, 11 Aug 2019 16:30:41 -0400 Subject: ext4: add a new ioctl EXT4_IOC_CLEAR_ES_CACHE The new ioctl EXT4_IOC_CLEAR_ES_CACHE will force an inode's extent status cache to be cleared out. This is intended for use for debugging. Signed-off-by: Theodore Ts'o --- fs/ext4/ext4.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/ext4/ext4.h') diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index bf660aa7a9e0..b22f24f1d365 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -649,6 +649,8 @@ enum { #define EXT4_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY #define EXT4_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT #define EXT4_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY +/* ioctl codes 19--39 are reserved for fscrypt */ +#define EXT4_IOC_CLEAR_ES_CACHE _IO('f', 40) #define EXT4_IOC_FSGETXATTR FS_IOC_FSGETXATTR #define EXT4_IOC_FSSETXATTR FS_IOC_FSSETXATTR -- cgit v1.2.3