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splice: update mtime and atime on files

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Splice should update the modification and access times on regular
files just like read and write. Not updating mtime will confuse
backup tools, etc...

This patch only adds the time updates for regular files.  For pipes
and other special files that splice touches the need for updating the
times is less clear.  Let's discuss and fix that separately.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Miklos Szeredi 2009-08-15 08:43:22 +02:00 committed by Jens Axboe
parent d62f843b29
commit 723590ed52
1 changed files with 6 additions and 2 deletions
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8
fs/splice.c
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@ -502,8 +502,10 @@ ssize_t generic_file_splice_read(struct file *in, loff_t *ppos,
len = left; len = left;
ret = __generic_file_splice_read(in, ppos, pipe, len, flags); ret = __generic_file_splice_read(in, ppos, pipe, len, flags);
if (ret > 0) if (ret > 0) {
*ppos += ret; *ppos += ret;
file_accessed(in);
}
return ret; return ret;
} }
@ -963,8 +965,10 @@ generic_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
mutex_lock_nested(&inode->i_mutex, I_MUTEX_CHILD); mutex_lock_nested(&inode->i_mutex, I_MUTEX_CHILD);
ret = file_remove_suid(out); ret = file_remove_suid(out);
if (!ret) if (!ret) {
file_update_time(out);
ret = splice_from_pipe_feed(pipe, &sd, pipe_to_file); ret = splice_from_pipe_feed(pipe, &sd, pipe_to_file);
}
mutex_unlock(&inode->i_mutex); mutex_unlock(&inode->i_mutex);
} while (ret > 0); } while (ret > 0);
splice_from_pipe_end(pipe, &sd); splice_from_pipe_end(pipe, &sd);