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authorTheodore Ts'o <tytso@mit.edu>2009-12-01 09:04:42 -0500
committerTheodore Ts'o <tytso@mit.edu>2009-12-01 09:04:42 -0500
commite6ec116b67f46e0e7808276476554727b2e6240b (patch)
treeef80d636a8d45ff7779532e493916e2873adf390
parent3f0ca309858ee186435c608ee9eaafd1c8dcb53a (diff)
downloadop-kernel-dev-e6ec116b67f46e0e7808276476554727b2e6240b.zip
op-kernel-dev-e6ec116b67f46e0e7808276476554727b2e6240b.tar.gz
jbd2: Add ENOMEM checking in and for jbd2_journal_write_metadata_buffer()
OOM happens. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
-rw-r--r--fs/jbd2/commit.c4
-rw-r--r--fs/jbd2/journal.c4
2 files changed, 8 insertions, 0 deletions
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index d4cfd6d..8896c1d 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -636,6 +636,10 @@ void jbd2_journal_commit_transaction(journal_t *journal)
JBUFFER_TRACE(jh, "ph3: write metadata");
flags = jbd2_journal_write_metadata_buffer(commit_transaction,
jh, &new_jh, blocknr);
+ if (flags < 0) {
+ jbd2_journal_abort(journal, flags);
+ continue;
+ }
set_bit(BH_JWrite, &jh2bh(new_jh)->b_state);
wbuf[bufs++] = jh2bh(new_jh);
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index af60d98..3f473fa 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -358,6 +358,10 @@ repeat:
jbd_unlock_bh_state(bh_in);
tmp = jbd2_alloc(bh_in->b_size, GFP_NOFS);
+ if (!tmp) {
+ jbd2_journal_put_journal_head(new_jh);
+ return -ENOMEM;
+ }
jbd_lock_bh_state(bh_in);
if (jh_in->b_frozen_data) {
jbd2_free(tmp, bh_in->b_size);
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