No functional changes in this patch, just in preparation for
allowing applications to pass in hints about data life times
for writes.
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
---
fs/inode.c | 1 +
include/linux/fs.h | 10 ++++++++++
2 files changed, 11 insertions(+)
diff --git a/fs/inode.c b/fs/inode.c
index db5914783a71..c911a2b9b5a4 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -149,6 +149,7 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
inode->i_blocks = 0;
inode->i_bytes = 0;
inode->i_generation = 0;
+ inode->i_stream = WRITE_LIFE_UNKNOWN;
inode->i_pipe = NULL;
inode->i_bdev = NULL;
inode->i_cdev = NULL;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 803e5a9b2654..bb8c246eeda8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -30,6 +30,7 @@
#include <linux/percpu-rwsem.h>
#include <linux/workqueue.h>
#include <linux/delayed_call.h>
+#include <linux/blk_types.h>
#include <asm/byteorder.h>
#include <uapi/linux/fs.h>
@@ -629,6 +630,7 @@ struct inode {
#ifdef CONFIG_IMA
atomic_t i_readcount; /* struct files open RO */
#endif
+ unsigned int i_stream;
const struct file_operations *i_fop; /* former ->i_op->default_file_ops */
struct file_lock_context *i_flctx;
struct address_space i_data;
@@ -655,6 +657,14 @@ struct inode {
void *i_private; /* fs or device private pointer */
};
+static inline unsigned int inode_streamid(struct inode *inode)
+{
+ if (inode)
+ return inode->i_stream;
+
+ return 0;
+}
+
static inline unsigned int i_blocksize(const struct inode *node)
{
return (1 << node->i_blkbits);
--
2.7.4
