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From: Jan Kara <jack@suse.cz>
To: <linux-fsdevel@vger.kernel.org>
Cc: Amir Goldstein <amir73il@gmail.com>,
	Josef Bacik <josef@toxicpanda.com>,
	brauner@kernel.org,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Al Viro <viro@ZenIV.linux.org.uk>,
	linux-xfs@vger.kernel.org, linux-btrfs@vger.kernel.org,
	linux-ext4@vger.kernel.org, linux-mm@kvack.org,
	Jan Kara <jack@suse.cz>
Subject: [PATCH 05/19] fanotify: rename a misnamed constant
Date: Thu, 21 Nov 2024 12:22:04 +0100	[thread overview]
Message-ID: <20241121112218.8249-6-jack@suse.cz> (raw)
In-Reply-To: <20241121112218.8249-1-jack@suse.cz>

From: Amir Goldstein <amir73il@gmail.com>

FANOTIFY_PIDFD_INFO_HDR_LEN is not the length of the header.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/8776ab90fe538225aeb561c560296bafd16b97c4.1731684329.git.josef@toxicpanda.com
---
 fs/notify/fanotify/fanotify_user.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 8dcd46fe6964..8d8afa09560b 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -118,7 +118,7 @@ struct kmem_cache *fanotify_perm_event_cachep __ro_after_init;
 #define FANOTIFY_EVENT_ALIGN 4
 #define FANOTIFY_FID_INFO_HDR_LEN \
 	(sizeof(struct fanotify_event_info_fid) + sizeof(struct file_handle))
-#define FANOTIFY_PIDFD_INFO_HDR_LEN \
+#define FANOTIFY_PIDFD_INFO_LEN \
 	sizeof(struct fanotify_event_info_pidfd)
 #define FANOTIFY_ERROR_INFO_LEN \
 	(sizeof(struct fanotify_event_info_error))
@@ -173,14 +173,14 @@ static size_t fanotify_event_len(unsigned int info_mode,
 		dot_len = 1;
 	}
 
-	if (info_mode & FAN_REPORT_PIDFD)
-		event_len += FANOTIFY_PIDFD_INFO_HDR_LEN;
-
 	if (fanotify_event_has_object_fh(event)) {
 		fh_len = fanotify_event_object_fh_len(event);
 		event_len += fanotify_fid_info_len(fh_len, dot_len);
 	}
 
+	if (info_mode & FAN_REPORT_PIDFD)
+		event_len += FANOTIFY_PIDFD_INFO_LEN;
+
 	return event_len;
 }
 
@@ -502,7 +502,7 @@ static int copy_pidfd_info_to_user(int pidfd,
 				   size_t count)
 {
 	struct fanotify_event_info_pidfd info = { };
-	size_t info_len = FANOTIFY_PIDFD_INFO_HDR_LEN;
+	size_t info_len = FANOTIFY_PIDFD_INFO_LEN;
 
 	if (WARN_ON_ONCE(info_len > count))
 		return -EFAULT;
-- 
2.35.3


  parent reply	other threads:[~2024-11-21 11:22 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-21 11:21 [PATCH v9 00/19] fanotify: add pre-content hooks Jan Kara
2024-11-21 11:22 ` [PATCH 01/19] fs: get rid of __FMODE_NONOTIFY kludge Jan Kara
2024-11-21 11:22 ` [PATCH 02/19] fsnotify: opt-in for permission events at file open time Jan Kara
2024-11-21 11:22 ` [PATCH 03/19] fsnotify: check if file is actually being watched for pre-content events on open Jan Kara
2024-11-21 16:01   ` Amir Goldstein
2024-11-22 10:58     ` Jan Kara
2024-11-21 11:22 ` [PATCH 04/19] fanotify: don't skip extra event info if no info_mode is set Jan Kara
2024-11-21 11:22 ` Jan Kara [this message]
2024-11-21 11:22 ` [PATCH 06/19] fanotify: reserve event bit of deprecated FAN_DIR_MODIFY Jan Kara
2024-11-21 11:22 ` [PATCH 07/19] fsnotify: introduce pre-content permission events Jan Kara
2024-11-21 11:22 ` [PATCH 08/19] fsnotify: pass optional file access range in pre-content event Jan Kara
2024-11-21 11:22 ` [PATCH 09/19] fsnotify: generate pre-content permission event on truncate Jan Kara
2024-11-21 11:22 ` [PATCH 10/19] fanotify: introduce FAN_PRE_ACCESS permission event Jan Kara
2024-11-21 11:22 ` [PATCH 11/19] fanotify: report file range info with pre-content events Jan Kara
2024-11-21 11:22 ` [PATCH 12/19] fanotify: allow to set errno in FAN_DENY permission response Jan Kara
2024-11-21 11:22 ` [PATCH 13/19] fanotify: disable readahead if we have pre-content watches Jan Kara
2024-11-21 11:22 ` [PATCH 14/19] mm: don't allow huge faults for files with pre content watches Jan Kara
2024-11-21 11:22 ` [PATCH 15/19] fsnotify: generate pre-content permission event on page fault Jan Kara
2024-11-21 11:22 ` [PATCH 16/19] xfs: add pre-content fsnotify hook for DAX faults Jan Kara
2024-11-21 11:22 ` [PATCH 17/19] btrfs: disable defrag on pre-content watched files Jan Kara
2024-11-21 11:22 ` [PATCH 18/19] ext4: add pre-content fsnotify hook for DAX faults Jan Kara
2024-11-21 11:22 ` [PATCH 19/19] fs: enable pre-content events on supported file systems Jan Kara
2024-11-21 16:06 ` [PATCH v9 00/19] fanotify: add pre-content hooks Amir Goldstein

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