Subject: + nilfs2-implementation-of-nilfs_ioctl_set_suinfo-ioctl-fix.patch added to -mm tree
To: konishi.ryusuke@xxxxxxxxxxxxx,andreas.rohner@xxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 04 Feb 2014 13:38:32 -0800
The patch titled
Subject: nilfs2: add description of NILFS_IOCTL_SET_SUINFO ioctl
has been added to the -mm tree. Its filename is
nilfs2-implementation-of-nilfs_ioctl_set_suinfo-ioctl-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/nilfs2-implementation-of-nilfs_ioctl_set_suinfo-ioctl-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/nilfs2-implementation-of-nilfs_ioctl_set_suinfo-ioctl-fix.patch
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------------------------------------------------------
From: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
Subject: nilfs2: add description of NILFS_IOCTL_SET_SUINFO ioctl
Add description of NILFS_IOCTL_SET_SUINFO ioctl in
Documentation/filesystems/nilfs2.txt to make it up-to-date.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
Cc: Andreas Rohner <andreas.rohner@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/filesystems/nilfs2.txt | 7 +++++++
1 file changed, 7 insertions(+)
diff -puN Documentation/filesystems/nilfs2.txt~nilfs2-implementation-of-nilfs_ioctl_set_suinfo-ioctl-fix Documentation/filesystems/nilfs2.txt
--- a/Documentation/filesystems/nilfs2.txt~nilfs2-implementation-of-nilfs_ioctl_set_suinfo-ioctl-fix
+++ a/Documentation/filesystems/nilfs2.txt
@@ -111,6 +111,13 @@ Table of NILFS2 specific ioctls
nilfs_resize utilities and by nilfs_cleanerd
daemon.
+ NILFS_IOCTL_SET_SUINFO Modify segment usage info of requested
+ segments. This ioctl is used by
+ nilfs_cleanerd daemon to skip unnecessary
+ cleaning operation of segments and reduce
+ performance penalty or wear of flash device
+ due to redundant move of in-use blocks.
+
NILFS_IOCTL_GET_SUSTAT Return segment usage statistics. This ioctl
is used in lssu, nilfs_resize utilities and
by nilfs_cleanerd daemon.
_
Patches currently in -mm which might be from konishi.ryusuke@xxxxxxxxxxxxx are
nilfs2-update-maintainers-file-entries.patch
nilfs2-add-struct-nilfs_suinfo_update-and-flags.patch
nilfs2-add-nilfs_sufile_set_suinfo-to-update-segment-usage.patch
nilfs2-implementation-of-nilfs_ioctl_set_suinfo-ioctl.patch
nilfs2-implementation-of-nilfs_ioctl_set_suinfo-ioctl-fix.patch
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