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From: Topi Miettinen <toiwoton@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Topi Miettinen <toiwoton@gmail.com>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	linux-fsdevel@vger.kernel.org (open list:FILESYSTEMS (VFS and
	infrastructure))
Subject: [PATCH 03/14] resource limits: track highwater mark of file sizes
Date: Fri, 15 Jul 2016 13:35:50 +0300	[thread overview]
Message-ID: <1468578983-28229-4-git-send-email-toiwoton@gmail.com> (raw)
In-Reply-To: <1468578983-28229-1-git-send-email-toiwoton@gmail.com>

Track maximum size of files created, to be able to configure
RLIMIT_FSIZE resource limits. The information is available
with taskstats and cgroupstats netlink socket.

Signed-off-by: Topi Miettinen <toiwoton@gmail.com>
---
 fs/attr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/attr.c b/fs/attr.c
index 25b24d0..546f4f9 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -116,6 +116,8 @@ int inode_newsize_ok(const struct inode *inode, loff_t offset)
 			return -ETXTBSY;
 	}
 
+	update_resource_highwatermark(RLIMIT_FSIZE, offset);
+
 	return 0;
 out_sig:
 	send_sig(SIGXFSZ, current, 0);
-- 
2.8.1


  reply	other threads:[~2016-07-15 10:37 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-15 10:35 [PATCH 00/14] Present useful limits to user (v2) Topi Miettinen
2016-07-15 10:35 ` Topi Miettinen [this message]
2016-07-15 10:35 ` [PATCH 04/14] resource limits: track highwater mark of VM data segment Topi Miettinen
2016-07-15 10:35 ` [PATCH 06/14] resource limits: track highwater mark of cores dumped Topi Miettinen
2016-07-15 10:35 ` [PATCH 08/14] resource limits: track highwater mark of number of files Topi Miettinen
2016-07-15 12:43 ` [PATCH 00/14] Present useful limits to user (v2) Peter Zijlstra
2016-07-15 13:52   ` Topi Miettinen
2016-07-15 13:59     ` Peter Zijlstra
2016-07-15 16:57       ` Topi Miettinen
2016-07-15 20:54       ` H. Peter Anvin
2016-07-15 13:04 ` Balbir Singh
2016-07-15 16:35   ` Topi Miettinen
2016-07-18 22:05     ` Doug Ledford
2016-07-19 16:53       ` Topi Miettinen
2016-07-15 14:19 ` Richard Weinberger
2016-07-15 17:19   ` Topi Miettinen
2016-07-18 21:25   ` Doug Ledford
2016-08-03 18:20 ` Topi Miettinen

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