Messages in this thread Patch in this message | | | From | Pieter Smith <> | Subject | [PATCH 04/56] fs: Macros to define splice file_operations | Date | Thu, 13 Nov 2014 22:22:41 +0100 |
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Provides a CONFIG_SYSCALL_SPLICE compatible way of defining the .splice_read and .splice_write file_operations so that they can later be compiled out when the kernel is configured without the splice-family syscalls
Signed-off-by: Pieter Smith <pieter@boesman.nl> --- include/linux/fs.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/include/linux/fs.h b/include/linux/fs.h index 9418772..a88de9f 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1512,6 +1512,32 @@ struct file_operations { int (*show_fdinfo)(struct seq_file *m, struct file *f); }; +#ifdef CONFIG_SYSCALL_SPLICE + +/* + * Define and init the splice_read member of a file_operations struct + */ +#define SPLICE_READ_INIT(read) .splice_read = read, + +/* + * Define and init the splice_read member of a file_operations struct + */ +#define SPLICE_WRITE_INIT(write) .splice_write = write, + +#else /* #ifdef CONFIG_SYSCALL_SPLICE */ + +/* + * Define and init the splice_read member of a file_operations struct + */ +#define SPLICE_READ_INIT(read) + +/* + * Define and init the splice_read member of a file_operations struct + */ +#define SPLICE_WRITE_INIT(write) + +#endif /* #ifdef CONFIG_SYSCALL_SPLICE */ + struct inode_operations { struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int); void * (*follow_link) (struct dentry *, struct nameidata *); -- 1.9.1
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