tree a0cfdaca8be99980c09d2b38ff676834c85ab2c4
parent 40389687382bf0ae71458e7c0f828137a438a956
author Theodore Ts'o <tytso@mit.edu> 1280246165 -0400
committer Theodore Ts'o <tytso@mit.edu> 1280246165 -0400

jbd2: Remove __GFP_NOFAIL from jbd2 layer

__GFP_NOFAIL is going away, so add our own retry loop.  Also add
jbd2__journal_start() and jbd2__journal_restart() which take a gfp
mask, so that file systems can optionally (re)start transaction
handles using GFP_KERNEL.  If they do this, then they need to be
prepared to handle receiving an PTR_ERR(-ENOMEM) error, and be ready
to reflect that error up to userspace.

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