struct jffs2_inode_info *f = JFFS2_INODE_INFO(pg->mapping->host);
int ret;
- down(&f->sem);
+ mutex_lock(&f->sem);
ret = jffs2_do_readpage_unlock(pg->mapping->host, pg);
- up(&f->sem);
+ mutex_unlock(&f->sem);
return ret;
}
struct inode *inode = mapping->host;
struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
pgoff_t index = pos >> PAGE_CACHE_SHIFT;
- uint32_t pageofs = pos & (PAGE_CACHE_SIZE - 1);
+ uint32_t pageofs = index << PAGE_CACHE_SHIFT;
int ret = 0;
pg = __grab_cache_page(mapping, index);
if (ret)
goto out_page;
- down(&f->sem);
+ mutex_lock(&f->sem);
memset(&ri, 0, sizeof(ri));
ri.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
if (IS_ERR(fn)) {
ret = PTR_ERR(fn);
jffs2_complete_reservation(c);
- up(&f->sem);
+ mutex_unlock(&f->sem);
goto out_page;
}
ret = jffs2_add_full_dnode_to_inode(c, f, fn);
jffs2_mark_node_obsolete(c, fn->raw);
jffs2_free_full_dnode(fn);
jffs2_complete_reservation(c);
- up(&f->sem);
+ mutex_unlock(&f->sem);
goto out_page;
}
jffs2_complete_reservation(c);
inode->i_size = pageofs;
- up(&f->sem);
+ mutex_unlock(&f->sem);
}
/*
* case of a short-copy.
*/
if (!PageUptodate(pg)) {
- down(&f->sem);
+ mutex_lock(&f->sem);
ret = jffs2_do_readpage_nolock(inode, pg);
- up(&f->sem);
+ mutex_unlock(&f->sem);
if (ret)
goto out_page;
}
_whole_ page. This helps to reduce the number of
nodes in files which have many short writes, like
syslog files. */
- start = aligned_start = 0;
+ aligned_start = 0;
}
ri = jffs2_alloc_raw_inode();
}
/* Adjust writtenlen for the padding we did, so we don't confuse our caller */
- if (writtenlen < (start&3))
- writtenlen = 0;
- else
- writtenlen -= (start&3);
+ writtenlen -= min(writtenlen, (start - aligned_start));
if (writtenlen) {
- if (inode->i_size < (pg->index << PAGE_CACHE_SHIFT) + start + writtenlen) {
- inode->i_size = (pg->index << PAGE_CACHE_SHIFT) + start + writtenlen;
+ if (inode->i_size < pos + writtenlen) {
+ inode->i_size = pos + writtenlen;
inode->i_blocks = (inode->i_size + 511) >> 9;
inode->i_ctime = inode->i_mtime = ITIME(je32_to_cpu(ri->ctime));