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Diffstat (limited to 'include')
-rw-r--r--include/linux/file.h6
-rw-r--r--include/linux/fs.h6
2 files changed, 9 insertions, 3 deletions
diff --git a/include/linux/file.h b/include/linux/file.h
index cbacf4faf447..f2517fa2d610 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -28,12 +28,14 @@ static inline void fput_light(struct file *file, int fput_needed)
struct fd {
struct file *file;
- int need_put;
+ unsigned int flags;
};
+#define FDPUT_FPUT 1
+#define FDPUT_POS_UNLOCK 2
static inline void fdput(struct fd fd)
{
- if (fd.need_put)
+ if (fd.flags & FDPUT_FPUT)
fput(fd.file);
}
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 60829565e552..ebfde04bca06 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -123,6 +123,9 @@ typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
/* File is opened with O_PATH; almost nothing can be done with it */
#define FMODE_PATH ((__force fmode_t)0x4000)
+/* File needs atomic accesses to f_pos */
+#define FMODE_ATOMIC_POS ((__force fmode_t)0x8000)
+
/* File was opened by fanotify and shouldn't generate fanotify events */
#define FMODE_NONOTIFY ((__force fmode_t)0x1000000)
@@ -780,13 +783,14 @@ struct file {
const struct file_operations *f_op;
/*
- * Protects f_ep_links, f_flags, f_pos vs i_size in lseek SEEK_CUR.
+ * Protects f_ep_links, f_flags.
* Must not be taken from IRQ context.
*/
spinlock_t f_lock;
atomic_long_t f_count;
unsigned int f_flags;
fmode_t f_mode;
+ struct mutex f_pos_lock;
loff_t f_pos;
struct fown_struct f_owner;
const struct cred *f_cred;