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[PATCH] xip: fs/mm: execute in place

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- generic_file* file operations do no longer have a xip/non-xip split
- filemap_xip.c implements a new set of fops that require get_xip_page
  aop to work proper. all new fops are exported GPL-only (don't like to
  see whatever code use those except GPL modules)
- __xip_unmap now uses page_check_address, which is no longer static
  in rmap.c, and defined in linux/rmap.h
- mm/filemap.h is now much more clean, plainly having just Linus'
  inline funcs moved here from filemap.c
- fix includes in filemap_xip to make it build cleanly on i386

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Carsten Otte
2005-06-23 22:05:25 -07:00
committed by Linus Torvalds
parent 420edbcc09
commit ceffc07852
8 changed files with 707 additions and 75 deletions
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18
include/linux/fs.h
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@@ -330,6 +330,8 @@ struct address_space_operations {
int (*releasepage) (struct page *, int);
ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov,
loff_t offset, unsigned long nr_segs);
struct page* (*get_xip_page)(struct address_space *, sector_t,
int);
};
struct backing_dev_info;
@@ -1497,6 +1499,22 @@ extern loff_t remote_llseek(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);
#ifdef CONFIG_FS_XIP
extern ssize_t xip_file_aio_read(struct kiocb *iocb, char __user *buf,
size_t count, loff_t pos);
extern ssize_t xip_file_readv(struct file *filp, const struct iovec *iov,
unsigned long nr_segs, loff_t *ppos);
extern ssize_t xip_file_sendfile(struct file *in_file, loff_t *ppos,
size_t count, read_actor_t actor,
void *target);
extern int xip_file_mmap(struct file * file, struct vm_area_struct * vma);
extern ssize_t xip_file_aio_write(struct kiocb *iocb, const char __user *buf,
size_t count, loff_t pos);
extern ssize_t xip_file_writev(struct file *file, const struct iovec *iov,
unsigned long nr_segs, loff_t *ppos);
extern int xip_truncate_page(struct address_space *mapping, loff_t from);
#endif
static inline void do_generic_file_read(struct file * filp, loff_t *ppos,
read_descriptor_t * desc,
read_actor_t actor)