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authorLinus Torvalds <torvalds@linux-foundation.org>2021-08-06 12:55:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-08-06 12:55:07 -0700
commitc9194f32bfd932e976a158d1af97a63be68a2aab (patch)
tree2c003b0cf9bccd8c1a670f3d45a770414785c45c
parent2c4b1ec683f28e0054bb25a55d50fe552d0611ea (diff)
parent877ba3f729fd3d8ef0e29bc2a55e57cfa54b2e43 (diff)
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o: "A regression fix, bug fix, and a comment cleanup for ext4" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix potential htree corruption when growing large_dir directories ext4: remove conflicting comment from __ext4_forget ext4: fix potential uninitialized access to retval in kmmpd
-rw-r--r--fs/ext4/ext4_jbd2.c3
-rw-r--r--fs/ext4/mmp.c2
-rw-r--r--fs/ext4/namei.c2
3 files changed, 2 insertions, 5 deletions
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index b96ecba91899..b60f0152ea57 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -244,9 +244,6 @@ int __ext4_journal_get_write_access(const char *where, unsigned int line,
* "bh" may be NULL: a metadata block may have been freed from memory
* but there may still be a record of it in the journal, and that record
* still needs to be revoked.
- *
- * If the handle isn't valid we're not journaling, but we still need to
- * call into ext4_journal_revoke() to put the buffer head.
*/
int __ext4_forget(const char *where, unsigned int line, handle_t *handle,
int is_metadata, struct inode *inode,
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index bc364c119af6..cebea4270817 100644
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -138,7 +138,7 @@ static int kmmpd(void *data)
unsigned mmp_check_interval;
unsigned long last_update_time;
unsigned long diff;
- int retval;
+ int retval = 0;
mmp_block = le64_to_cpu(es->s_mmp_block);
mmp = (struct mmp_struct *)(bh->b_data);
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 5fd56f616cf0..f3bbcd4efb56 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2517,7 +2517,7 @@ again:
goto journal_error;
err = ext4_handle_dirty_dx_node(handle, dir,
frame->bh);
- if (err)
+ if (restart || err)
goto journal_error;
} else {
struct dx_root *dxroot;