Re: Important for fs devs: rcu-walk merged upstream
From: Miklos Szeredi <miklos@szeredi.hu>
Date: 2011-01-11 11:08:10
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Subsystem:
documentation, the rest · Maintainers:
Jonathan Corbet, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2011-01-14 · Re: Important for fs devs: rcu-walk merged upstream · Miklos Szeredi <miklos@szeredi.hu>
- 2011-01-14 · Re: Important for fs devs: rcu-walk merged upstream · Nick Piggin <npiggin@gmail.com>
- 2011-01-14 · Re: Important for fs devs: rcu-walk merged upstream · Miklos Szeredi <miklos@szeredi.hu>
- 2011-01-14 · Re: Important for fs devs: rcu-walk merged upstream · Nick Piggin <npiggin@gmail.com>
- 2011-01-13 · Re: Important for fs devs: rcu-walk merged upstream · Miklos Szeredi <miklos@szeredi.hu>
On Tue, 11 Jan 2011, Nick Piggin wrote:
On Saturday, 8 January 2011, Marco Stornelli [off-list ref] wrote:quoted
Il 08/01/2011 03:54, Nick Piggin ha scritto:quoted
The vfs-scale branch is now upstream. If you haven't looked yet, your filesystem is likely to have been touched, so check it out. Also look at Documentation/filesystems/porting and path-lookup.txt.Nick, in the porting file I read: ..........hazards on dentries and inodes (see Documentation/filesystems/path-walk.txt). .......... ^^^^^^^^^^^^^ Should it be "path-lookup.txt"? MarcoHi, yes thanks I'll fix it
Also you use IPERM_RCU instead of IPERM_FLAG_RCU in the documentation. Thanks, Miklos
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 07a32b4..c2819ee 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting@@ -383,5 +383,5 @@ Documentation/filesystems/vfs.txt for more details. permission and check_acl are inode permission checks that are called on many or all directory inodes on the way down a path walk (to check for -exec permission). These must now be rcu-walk aware (flags & IPERM_RCU). See -Documentation/filesystems/vfs.txt for more details. +exec permission). These must now be rcu-walk aware (flags & IPERM_FLAG_RCU). +See Documentation/filesystems/vfs.txt for more details.
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index fbb324e..de8a967 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt@@ -415,9 +415,9 @@ otherwise noted. permission: called by the VFS to check for access rights on a POSIX-like filesystem. - May be called in rcu-walk mode (flags & IPERM_RCU). If in rcu-walk - mode, the filesystem must check the permission without blocking or - storing to the inode. + May be called in rcu-walk mode (flags & IPERM_FLAG_RCU). If in + rcu-walk mode, the filesystem must check the permission without + blocking or storing to the inode. If a situation is encountered that rcu-walk cannot handle, return -ECHILD and it will be called again in ref-walk mode.
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