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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 15:24:40 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 15:24:40 +0900
commitdd1d1399f2884102172f761816c32aa311bceafb (patch)
treef3c350bd0a1c43bc61d6aefde32d5d5a8aa22011 /Documentation
parenta9986464564609dd0962e6023513f7d3d313dc80 (diff)
parent29e59c14ae5c21d25db1580d9651b5855d656a30 (diff)
downloadlinux-dd1d1399f2884102172f761816c32aa311bceafb.tar.bz2
Merge tag 'for-f2fs-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim: "This patch-set includes the following major enhancement patches. - add a sysfs to control reclaiming free segments - enhance the f2fs global lock procedures - enhance the victim selection flow - wait for selected node blocks during fsync - add some tracepoints - add a config to remove abundant BUG_ONs The other bug fixes are as follows. - fix deadlock on acl operations - fix some bugs with respect to orphan inodes And, there are a bunch of cleanups" * tag 'for-f2fs-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (42 commits) f2fs: issue more large discard command f2fs: fix memory leak after kobject init failed in fill_super f2fs: cleanup waiting routine for writeback pages in cp f2fs: avoid to use a NULL point in destroy_segment_manager f2fs: remove unnecessary TestClearPageError when wait pages writeback f2fs: update f2fs document f2fs: avoid to wait all the node blocks during fsync f2fs: check all ones or zeros bitmap with bitops for better mount performance f2fs: change the method of calculating the number summary blocks f2fs: fix calculating incorrect free size when update xattr in __f2fs_setxattr f2fs: add an option to avoid unnecessary BUG_ONs f2fs: introduce CONFIG_F2FS_CHECK_FS for BUG_ON control f2fs: fix a deadlock during init_acl procedure f2fs: clean up acl flow for better readability f2fs: remove unnecessary segment bitmap updates f2fs: add tracepoint for vm_page_mkwrite f2fs: add tracepoint for set_page_dirty f2fs: remove redundant set_page_dirty from write_compacted_summaries f2fs: add reclaiming control by sysfs f2fs: introduce f2fs_balance_fs_bg for some background jobs ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/filesystems/f2fs.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 3cd27bed6349..a3fe811bbdbc 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -119,6 +119,7 @@ active_logs=%u Support configuring the number of active logs. In the
Default number is 6.
disable_ext_identify Disable the extension list configured by mkfs, so f2fs
does not aware of cold files such as media files.
+inline_xattr Enable the inline xattrs feature.
================================================================================
DEBUGFS ENTRIES
@@ -164,6 +165,12 @@ Files in /sys/fs/f2fs/<devname>
gc_idle = 1 will select the Cost Benefit approach
& setting gc_idle = 2 will select the greedy aproach.
+ reclaim_segments This parameter controls the number of prefree
+ segments to be reclaimed. If the number of prefree
+ segments is larger than this number, f2fs tries to
+ conduct checkpoint to reclaim the prefree segments
+ to free segments. By default, 100 segments, 200MB.
+
================================================================================
USAGE
================================================================================