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| author | Scott Wolchok <swolchok@umich.edu> | 2012-12-20 15:05:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-20 17:40:21 -0800 |
| commit | a68c2f12b4b28994aaf622bbe5724b7258cc2fcf (patch) | |
| tree | c78116c77b068c3b57aa3bdddd40c2ecdd0d5a9f /fs/read_write.c | |
| parent | 891348ca0f66206f1dc0e30d63757e3df1ae2d15 (diff) | |
| download | lwn-a68c2f12b4b28994aaf622bbe5724b7258cc2fcf.tar.gz lwn-a68c2f12b4b28994aaf622bbe5724b7258cc2fcf.zip | |
sendfile: allows bypassing of notifier events
do_sendfile() in fs/read_write.c does not call the fsnotify functions,
unlike its neighbors. This manifests as a lack of inotify ACCESS events
when a file is sent using sendfile(2).
Addresses
https://bugzilla.kernel.org/show_bug.cgi?id=12812
[akpm@linux-foundation.org: use fsnotify_modify(out.file), not fsnotify_access(), per Dave]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Scott Wolchok <swolchok@umich.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/read_write.c')
| -rw-r--r-- | fs/read_write.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/read_write.c b/fs/read_write.c index 1edaf099ddd7..bb34af315280 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -935,6 +935,8 @@ ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos, size_t count, if (retval > 0) { add_rchar(current, retval); add_wchar(current, retval); + fsnotify_access(in.file); + fsnotify_modify(out.file); } inc_syscr(current); |