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-rw-r--r--Documentation/filesystems/vfat.txt20
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt
index ead764b2728..d230dd9c99b 100644
--- a/Documentation/filesystems/vfat.txt
+++ b/Documentation/filesystems/vfat.txt
@@ -111,6 +111,15 @@ tz=UTC -- Interpret timestamps as UTC rather than local time.
useful when mounting devices (like digital cameras)
that are set to UTC in order to avoid the pitfalls of
local time.
+time_offset=minutes
+ -- Set offset for conversion of timestamps from local time
+ used by FAT to UTC. I.e. <minutes> minutes will be subtracted
+ from each timestamp to convert it to UTC used internally by
+ Linux. This is useful when time zone set in sys_tz is
+ not the time zone used by the filesystem. Note that this
+ option still does not provide correct time stamps in all
+ cases in presence of DST - time stamps in a different DST
+ setting will be off by one hour.
showexec -- If set, the execute permission bits of the file will be
allowed only if the extension part of the name is .EXE,
@@ -137,6 +146,17 @@ errors=panic|continue|remount-ro
without doing anything or remount the partition in
read-only mode (default behavior).
+discard -- If set, issues discard/TRIM commands to the block
+ device when blocks are freed. This is useful for SSD devices
+ and sparse/thinly-provisoned LUNs.
+
+nfs -- This option maintains an index (cache) of directory
+ inodes by i_logstart which is used by the nfs-related code to
+ improve look-ups.
+
+ Enable this only if you want to export the FAT filesystem
+ over NFS
+
<bool>: 0,1,yes,no,true,false
TODO