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Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/fs.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index c1884e974ff4..db85196f6308 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -964,7 +964,12 @@ struct file {
#define f_dentry f_path.dentry
#define f_vfsmnt f_path.mnt
const struct file_operations *f_op;
- spinlock_t f_lock; /* f_ep_links, f_flags, no IRQ */
+
+ /*
+ * Protects f_ep_links, f_flags, f_pos vs i_size in lseek SEEK_CUR.
+ * Must not be taken from IRQ context.
+ */
+ spinlock_t f_lock;
#ifdef CONFIG_SMP
int f_sb_list_cpu;
#endif
@@ -2398,8 +2403,6 @@ file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping);
extern loff_t noop_llseek(struct file *file, loff_t offset, int origin);
extern loff_t no_llseek(struct file *file, loff_t offset, int origin);
extern loff_t generic_file_llseek(struct file *file, loff_t offset, int origin);
-extern loff_t generic_file_llseek_unlocked(struct file *file, loff_t offset,
- int origin);
extern int generic_file_open(struct inode * inode, struct file * filp);
extern int nonseekable_open(struct inode * inode, struct file * filp);