tree 5c9cb128fed29a83add1932b12443edaa6fd06cc
parent 296c355cd6443d89fa251885a8d78778fe111dc4
author Theodore Ts'o <tytso@mit.edu> 1254285126 -0400
committer Theodore Ts'o <tytso@mit.edu> 1254285126 -0400

jbd2: Use tracepoints for history file

The /proc/fs/jbd2/<dev>/history was maintained manually; by using
tracepoints, we can get all of the existing functionality of the /proc
file plus extra capabilities thanks to the ftrace infrastructure.  We
save memory as a bonus.

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