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Add clarifications to the e4defrag and resize2fs man pages

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Addresses-Debian-Bug: #761144
Addresses-Debian-Bug: #770750

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

by 1 commit.
This commit is contained in:
Theodore Ts'o 2016-06-03 23:28:33 -04:00
parent 50a6f4a2cf
commit 97b7a94679
2 changed files with 17 additions and 2 deletions
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10
misc/e4defrag.8.in
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@ -66,6 +66,16 @@ is a device or a mount point,
.B e4defrag
doesn't defragment files in mount point of other device.
.PP
It safe to run e4defrag on a file while it is actively in use by another
application. Since the contents of file blocks are copied using the
page cache, this can result in a performance slowdown to both e4defrag
and the application due to contention over the system's memory and disk
bandwidth.
.PP
If the file system's free space is fragmented, or if there is
insufficient free space available, e4defrag may not be able
to improve the file's fragmentation.
.PP
Non-privileged users can execute
.B e4defrag
to their own file, but the score is not printed if

9
resize/resize2fs.8.in
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@ -133,7 +133,8 @@ really useful for doing
time trials.
.TP
.B \-M
Shrink the filesystem to the minimum size.
Shrink the file system to minimize its size as much as possible,
given the files stored in the file system.
.TP
.B \-p
Prints out a percentage completion bars for each
@ -142,7 +143,11 @@ operation during an offline resize, so that the user can keep track
of what the program is doing.
.TP
.B \-P
Print the minimum size of the filesystem and exit.
Print an extimate of the number of file system blocks in the file system
if it is shrunk using
.BR resize2fs 's
.B \-M
option and then exit.
.TP
.B \-s
Turns off the 64bit feature and frees blocks that are no longer in use.