ext4: make trim/discard optional (and off by default)
authorEric Sandeen <sandeen@redhat.com>
Thu, 19 Nov 2009 19:25:42 +0000 (14:25 -0500)
committerTheodore Ts'o <tytso@mit.edu>
Thu, 19 Nov 2009 19:25:42 +0000 (14:25 -0500)
commit5328e635315734d42080de9a5a1ee87bf4cae0a4
tree4952c04c9b1faec9a3c82a3743805efad05ed96e
parent2bba702d4f88d7b010ec37e2527b552588404ae7
ext4: make trim/discard optional (and off by default)

It is anticipated that when sb_issue_discard starts doing
real work on trim-capable devices, we may see issues.  Make
this mount-time optional, and default it to off until we know
that things are working out OK.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Documentation/filesystems/ext4.txt
fs/ext4/ext4.h
fs/ext4/mballoc.c
fs/ext4/super.c