Add man-page documentation for the new 'discard' and 'nfs' options
available for vfat/msdos filesystems.
Signed-off-by: Steven J. Magnani <steve@xxxxxxxxxxxxxxx>
---
--- a/sys-utils/mount.8 2012-07-30 07:16:34.224450761 -0500
+++ b/sys-utils/mount.8 2012-07-30 07:14:07.693240720 -0500
@@ -1744,6 +1744,11 @@ flag. A version string and a list of fi
printed (these data are also printed if the parameters appear to be
inconsistent).
.TP
+.B discard
+If set, causes discard/TRIM commands to be issued to the block device
+when blocks are freed. This is useful for SSD devices and
+sparse/thinly-provisoned LUNs.
+.TP
.BR fat= {12 | 16 | 32 }
Specify a 12, 16 or 32 bit fat. This overrides
the automatic FAT type detection routine. Use with caution!
@@ -1753,6 +1758,11 @@ Character set to use for converting betw
and 16 bit Unicode characters. The default is iso8859-1.
Long filenames are stored on disk in Unicode format.
.TP
+.B nfs
+If set, enables in-memory indexing of directory inodes to reduce the
+frequency of ESTALE errors in NFS client operations. Useful only when
+the filesystem is exported via NFS.
+.TP
.BI tz=UTC
This option disables the conversion of timestamps
between local time (as used by Windows on FAT) and UTC
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