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Code Issues Releases Wiki Activity

splice: report related fsnotify events 

The fsnotify ACCESS and MODIFY event are missing when manipulating a file
with splice(2).

Signed-off-by: Chung-Chiang Cheng <cccheng@synology.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Acked-by: Jan Kara <jack@suse.cz>
Message-Id: <20230322062519.409752-1-cccheng@synology.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Chung-Chiang Cheng 2023-03-22 14:25:19 +08:00 committed by Christian Brauner
parent 364595a685
commit 983652c691
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
1 changed files with 8 additions and 0 deletions
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8
fs/splice.c
View File

@ -30,6 +30,7 @@
#include <linux/export.h>
#include <linux/syscalls.h>
#include <linux/uio.h>
#include <linux/fsnotify.h>
#include <linux/security.h>
#include <linux/gfp.h>
#include <linux/socket.h>
@ -1165,6 +1166,9 @@ long do_splice(struct file *in, loff_t *off_in, struct file *out,
ret = do_splice_from(ipipe, out, &offset, len, flags);
file_end_write(out);
if (ret > 0)
fsnotify_modify(out);
if (!off_out)
out->f_pos = offset;
else
@ -1188,6 +1192,10 @@ long do_splice(struct file *in, loff_t *off_in, struct file *out,
flags |= SPLICE_F_NONBLOCK;
ret = splice_file_to_pipe(in, opipe, &offset, len, flags);
if (ret > 0)
fsnotify_access(in);
if (!off_in)
in->f_pos = offset;
else