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implement simple fs aops

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Implement new aops for some of the simpler filesystems.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nick Piggin
2007-10-16 01:25:03 -07:00
committed by Linus Torvalds
parent 674b892ede
commit 800d15a53e
6 changed files with 45 additions and 21 deletions
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16
fs/hugetlbfs/inode.c
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@ -189,15 +189,19 @@ static int hugetlbfs_readpage(struct file *file, struct page * page)
return -EINVAL;
}
static int hugetlbfs_prepare_write(struct file *file,
struct page *page, unsigned offset, unsigned to)
static int hugetlbfs_write_begin(struct file *file,
struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
{
return -EINVAL;
}
static int hugetlbfs_commit_write(struct file *file,
struct page *page, unsigned offset, unsigned to)
static int hugetlbfs_write_end(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned copied,
struct page *page, void *fsdata)
{
BUG();
return -EINVAL;
}
@ -569,8 +573,8 @@ static void hugetlbfs_destroy_inode(struct inode *inode)
static const struct address_space_operations hugetlbfs_aops = {
.readpage = hugetlbfs_readpage,
.prepare_write = hugetlbfs_prepare_write,
.commit_write = hugetlbfs_commit_write,
.write_begin = hugetlbfs_write_begin,
.write_end = hugetlbfs_write_end,
.set_page_dirty = hugetlbfs_set_page_dirty,
};