tree cc15e47e67f295501669969e9f54dd1ad627e9db
parent bcb942c2013a92ff9a627ee79f14e52dba097538
author Andreas Dilger <adilger@whamcloud.com> 1307463749 -0600
committer Theodore Ts'o <tytso@mit.edu> 1307468223 -0400

mke2fs: Don't erase flash device if "-n" is given

If "mke2fs -n" is used, there should be no changes to the underlying
device.  Unfortunately, when the "discard" option was added in commit
c7cd908be59f48c66b4f3ac9a631ffe3dde4f1ab, it did not check for the "-n"
flag, and will discard all data on a flash device even if "-n" is given.

Check for the "noaction" flag before discarding any filesystem data.

Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>