#include <linux/splice.h>
#include <linux/mount.h>
#include <linux/writeback.h>
+#include <linux/falloc.h>
#define MLOG_MASK_PREFIX ML_INODE
#include <cluster/masklog.h>
int ret;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
handle_t *handle;
+ struct ocfs2_dinode *di = (struct ocfs2_dinode *) bh->b_data;
mlog_entry_void();
goto out;
}
+ ret = ocfs2_journal_access(handle, inode, bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret) {
+ mlog_errno(ret);
+ goto out_commit;
+ }
+
+ /*
+ * Don't use ocfs2_mark_inode_dirty() here as we don't always
+ * have i_mutex to guard against concurrent changes to other
+ * inode fields.
+ */
inode->i_atime = CURRENT_TIME;
- ret = ocfs2_mark_inode_dirty(handle, inode, bh);
+ di->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
+ di->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
+
+ ret = ocfs2_journal_dirty(handle, bh);
if (ret < 0)
mlog_errno(ret);
+out_commit:
ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
out:
mlog_exit(ret);
}
if (size_change && attr->ia_size != i_size_read(inode)) {
+ if (attr->ia_size > sb->s_maxbytes) {
+ status = -EFBIG;
+ goto bail_unlock;
+ }
+
if (i_size_read(inode) > attr->ia_size)
status = ocfs2_truncate_file(inode, bh, attr->ia_size);
else
/*
* Parts of this function taken from xfs_change_file_space()
*/
-int ocfs2_change_file_space(struct file *file, unsigned int cmd,
- struct ocfs2_space_resv *sr)
+static int __ocfs2_change_file_space(struct file *file, struct inode *inode,
+ loff_t f_pos, unsigned int cmd,
+ struct ocfs2_space_resv *sr,
+ int change_size)
{
int ret;
s64 llen;
- struct inode *inode = file->f_path.dentry->d_inode;
+ loff_t size;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct buffer_head *di_bh = NULL;
handle_t *handle;
- unsigned long long max_off = ocfs2_max_file_offset(inode->i_sb->s_blocksize_bits);
-
- if ((cmd == OCFS2_IOC_RESVSP || cmd == OCFS2_IOC_RESVSP64) &&
- !ocfs2_writes_unwritten_extents(osb))
- return -ENOTTY;
- else if ((cmd == OCFS2_IOC_UNRESVSP || cmd == OCFS2_IOC_UNRESVSP64) &&
- !ocfs2_sparse_alloc(osb))
- return -ENOTTY;
-
- if (!S_ISREG(inode->i_mode))
- return -EINVAL;
-
- if (!(file->f_mode & FMODE_WRITE))
- return -EBADF;
+ unsigned long long max_off = inode->i_sb->s_maxbytes;
if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))
return -EROFS;
case 0: /*SEEK_SET*/
break;
case 1: /*SEEK_CUR*/
- sr->l_start += file->f_pos;
+ sr->l_start += f_pos;
break;
case 2: /*SEEK_END*/
sr->l_start += i_size_read(inode);
ret = -EINVAL;
goto out_meta_unlock;
}
+ size = sr->l_start + sr->l_len;
if (cmd == OCFS2_IOC_RESVSP || cmd == OCFS2_IOC_RESVSP64) {
if (sr->l_len <= 0) {
}
}
- if (should_remove_suid(file->f_path.dentry)) {
+ if (file && should_remove_suid(file->f_path.dentry)) {
ret = __ocfs2_write_remove_suid(inode, di_bh);
if (ret) {
mlog_errno(ret);
goto out_meta_unlock;
}
+ if (change_size && i_size_read(inode) < size)
+ i_size_write(inode, size);
+
inode->i_ctime = inode->i_mtime = CURRENT_TIME;
ret = ocfs2_mark_inode_dirty(handle, inode, di_bh);
if (ret < 0)
return ret;
}
+int ocfs2_change_file_space(struct file *file, unsigned int cmd,
+ struct ocfs2_space_resv *sr)
+{
+ struct inode *inode = file->f_path.dentry->d_inode;
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);;
+
+ if ((cmd == OCFS2_IOC_RESVSP || cmd == OCFS2_IOC_RESVSP64) &&
+ !ocfs2_writes_unwritten_extents(osb))
+ return -ENOTTY;
+ else if ((cmd == OCFS2_IOC_UNRESVSP || cmd == OCFS2_IOC_UNRESVSP64) &&
+ !ocfs2_sparse_alloc(osb))
+ return -ENOTTY;
+
+ if (!S_ISREG(inode->i_mode))
+ return -EINVAL;
+
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EBADF;
+
+ return __ocfs2_change_file_space(file, inode, file->f_pos, cmd, sr, 0);
+}
+
+static long ocfs2_fallocate(struct inode *inode, int mode, loff_t offset,
+ loff_t len)
+{
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct ocfs2_space_resv sr;
+ int change_size = 1;
+
+ if (!ocfs2_writes_unwritten_extents(osb))
+ return -EOPNOTSUPP;
+
+ if (S_ISDIR(inode->i_mode))
+ return -ENODEV;
+
+ if (mode & FALLOC_FL_KEEP_SIZE)
+ change_size = 0;
+
+ sr.l_whence = 0;
+ sr.l_start = (s64)offset;
+ sr.l_len = (s64)len;
+
+ return __ocfs2_change_file_space(NULL, inode, offset,
+ OCFS2_IOC_RESVSP64, &sr, change_size);
+}
+
static int ocfs2_prepare_inode_for_write(struct dentry *dentry,
loff_t *ppos,
size_t count,
}
dst = kmap_atomic(page, KM_USER0);
- memcpy(dst + (pos & (PAGE_CACHE_SIZE - 1)), buf, bytes);
+ memcpy(dst + (pos & (loff_t)(PAGE_CACHE_SIZE - 1)), buf, bytes);
kunmap_atomic(dst, KM_USER0);
flush_dcache_page(page);
ocfs2_put_write_source(user_page);
src = buf->ops->map(pipe, buf, 1);
dst = kmap_atomic(page, KM_USER1);
memcpy(dst + offset, src + buf->offset, count);
- kunmap_atomic(page, KM_USER1);
+ kunmap_atomic(dst, KM_USER1);
buf->ops->unmap(pipe, buf, src);
copied = ocfs2_write_end(file, file->f_mapping, sd->pos, count, count,
.setattr = ocfs2_setattr,
.getattr = ocfs2_getattr,
.permission = ocfs2_permission,
+ .fallocate = ocfs2_fallocate,
};
const struct inode_operations ocfs2_special_file_iops = {