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fuse: clean up setting i_size in write 

Extract common code for setting i_size in write functions into a common
helper.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Miklos Szeredi 2008-04-30 00:54:41 -07:00 committed by Linus Torvalds
parent 3be5a52b30
commit 854512ec35
1 changed files with 15 additions and 13 deletions
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28
fs/fuse/file.c
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@ -610,13 +610,24 @@ static int fuse_write_begin(struct file *file, struct address_space *mapping,
return 0;
}
static void fuse_write_update_size(struct inode *inode, loff_t pos)
{
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
fi->attr_version = ++fc->attr_version;
if (pos > inode->i_size)
i_size_write(inode, pos);
spin_unlock(&fc->lock);
}
static int fuse_buffered_write(struct file *file, struct inode *inode,
loff_t pos, unsigned count, struct page *page)
{
int err;
size_t nres;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
unsigned offset = pos & (PAGE_CACHE_SIZE - 1);
struct fuse_req *req;
@ -643,12 +654,7 @@ static int fuse_buffered_write(struct file *file, struct inode *inode,
err = -EIO;
if (!err) {
pos += nres;
spin_lock(&fc->lock);
fi->attr_version = ++fc->attr_version;
if (pos > inode->i_size)
i_size_write(inode, pos);
spin_unlock(&fc->lock);
fuse_write_update_size(inode, pos);
if (count == PAGE_CACHE_SIZE)
SetPageUptodate(page);
}
@ -766,12 +772,8 @@ static ssize_t fuse_direct_io(struct file *file, const char __user *buf,
}
fuse_put_request(fc, req);
if (res > 0) {
if (write) {
spin_lock(&fc->lock);
if (pos > inode->i_size)
i_size_write(inode, pos);
spin_unlock(&fc->lock);
}
if (write)
fuse_write_update_size(inode, pos);
*ppos = pos;
}
fuse_invalidate_attr(inode);