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[PATCH] Make address_space_operations->invalidatepage return void

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The return value of this function is never used, so let's be honest and
declare it as void.

Some places where invalidatepage returned 0, I have inserted comments
suggesting a BUG_ON.

[akpm@osdl.org: JBD BUG fix]
[akpm@osdl.org: rework for git-nfs]
[akpm@osdl.org: don't go BUG in block_invalidate_page()]
Signed-off-by: Neil Brown <neilb@suse.de>
Acked-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
NeilBrown
2006-03-26 01:37:18 -08:00
committed by Linus Torvalds
parent 3978d7179d
commit 2ff28e22bd
11 changed files with 33 additions and 38 deletions
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4
include/linux/buffer_head.h
View File

@@ -189,8 +189,8 @@ extern int buffer_heads_over_limit;
* address_spaces.
*/
int try_to_release_page(struct page * page, gfp_t gfp_mask);
int block_invalidatepage(struct page *page, unsigned long offset);
int do_invalidatepage(struct page *page, unsigned long offset);
void block_invalidatepage(struct page *page, unsigned long offset);
void do_invalidatepage(struct page *page, unsigned long offset);
int block_write_full_page(struct page *page, get_block_t *get_block,
struct writeback_control *wbc);
int block_read_full_page(struct page*, get_block_t*);

2
include/linux/fs.h
View File

@@ -369,7 +369,7 @@ struct address_space_operations {
int (*commit_write)(struct file *, struct page *, unsigned, unsigned);
/* Unfortunately this kludge is needed for FIBMAP. Don't use it */
sector_t (*bmap)(struct address_space *, sector_t);
int (*invalidatepage) (struct page *, unsigned long);
void (*invalidatepage) (struct page *, unsigned long);
int (*releasepage) (struct page *, gfp_t);
ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov,
loff_t offset, unsigned long nr_segs);

2
include/linux/jbd.h
View File

@@ -895,7 +895,7 @@ extern int journal_dirty_metadata (handle_t *, struct buffer_head *);
extern void journal_release_buffer (handle_t *, struct buffer_head *);
extern int journal_forget (handle_t *, struct buffer_head *);
extern void journal_sync_buffer (struct buffer_head *);
extern int journal_invalidatepage(journal_t *,
extern void journal_invalidatepage(journal_t *,
struct page *, unsigned long);
extern int journal_try_to_free_buffers(journal_t *, struct page *, gfp_t);
extern int journal_stop(handle_t *);