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-rw-r--r--Documentation/filesystems/f2fs.rst13
1 files changed, 12 insertions, 1 deletions
diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index 17df9a02ccff14..220f3e0d3f559f 100644
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -25,10 +25,14 @@ a consistency checking tool (fsck.f2fs), and a debugging tool (dump.f2fs).
- git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-tools.git
-For reporting bugs and sending patches, please use the following mailing list:
+For sending patches, please use the following mailing list:
- linux-f2fs-devel@lists.sourceforge.net
+For reporting bugs, please use the following f2fs bug tracker link:
+
+- https://bugzilla.kernel.org/enter_bug.cgi?product=File%20System&component=f2fs
+
Background and Design issues
============================
@@ -154,6 +158,8 @@ nobarrier This option can be used if underlying storage guarantees
If this option is set, no cache_flush commands are issued
but f2fs still guarantees the write ordering of all the
data writes.
+barrier If this option is set, cache_flush commands are allowed to be
+ issued.
fastboot This option is used when a system wants to reduce mount
time as much as possible, even though normal performance
can be sacrificed.
@@ -199,6 +205,7 @@ fault_type=%d Support configuring fault injection type, should be
FAULT_SLAB_ALLOC 0x000008000
FAULT_DQUOT_INIT 0x000010000
FAULT_LOCK_OP 0x000020000
+ FAULT_BLKADDR 0x000040000
=================== ===========
mode=%s Control block allocation mode which supports "adaptive"
and "lfs". In "lfs" mode, there should be no random
@@ -340,6 +347,10 @@ memory=%s Control memory mode. This supports "normal" and "low" modes.
Because of the nature of low memory devices, in this mode, f2fs
will try to save memory sometimes by sacrificing performance.
"normal" mode is the default mode and same as before.
+age_extent_cache Enable an age extent cache based on rb-tree. It records
+ data block update frequency of the extent per inode, in
+ order to provide better temperature hints for data block
+ allocation.
======================== ============================================================
Debugfs Entries