Author: kib
Date: Mon May 2 13:18:17 2016
New Revision: 298922
URL: https://svnweb.freebsd.org/changeset/base/298922
Log:
Issue NOTE_EXTEND when a directory entry is added to or removed from
the monitored directory as the result of rename(2) operation. The
renames staying in the directory are not reported.
Submitted by: Vladimir Kondratyev <w...@cicgroup.ru>
MFC after: 2 weeks
Modified:
head/lib/libc/sys/kqueue.2
head/sys/kern/vfs_subr.c
Modified: head/lib/libc/sys/kqueue.2
==============================================================================
--- head/lib/libc/sys/kqueue.2 Mon May 2 13:13:32 2016 (r298921)
+++ head/lib/libc/sys/kqueue.2 Mon May 2 13:18:17 2016 (r298922)
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd May 1, 2016
+.Dd May 2, 2016
.Dt KQUEUE 2
.Os
.Sh NAME
@@ -376,7 +376,13 @@ was called on the file referenced by the
.It Dv NOTE_WRITE
A write occurred on the file referenced by the descriptor.
.It Dv NOTE_EXTEND
-The file referenced by the descriptor was extended.
+For regular file, the file referenced by the descriptor was extended.
+.Pp
+For directory, reports that a directory entry was added or removed,
+as the result of rename operation.
+The
+.Dv NOTE_EXTEND
+event is not reported when a name is changed inside the directory.
.It Dv NOTE_ATTRIB
The file referenced by the descriptor had its attributes changed.
.It Dv NOTE_LINK
Modified: head/sys/kern/vfs_subr.c
==============================================================================
--- head/sys/kern/vfs_subr.c Mon May 2 13:13:32 2016 (r298921)
+++ head/sys/kern/vfs_subr.c Mon May 2 13:18:17 2016 (r298922)
@@ -4660,6 +4660,7 @@ vop_rename_post(void *ap, int rc)
VFS_KNOTE_UNLOCKED(a->a_fdvp, hint);
VFS_KNOTE_UNLOCKED(a->a_tdvp, hint);
} else {
+ hint |= NOTE_EXTEND;
if (a->a_fvp->v_type == VDIR)
hint |= NOTE_LINK;
VFS_KNOTE_UNLOCKED(a->a_fdvp, hint);
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