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authorLinus Torvalds <torvalds@linux-foundation.org>2015-10-24 07:17:58 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2015-10-24 07:17:58 +0900
commit37902bc190f1396a8c232783b29ddfcaa4026028 (patch)
treebb13b0d32a6509c935d60af64adc9a86308c0619
parent03867292476e6fa7679395838d768dda0a0816c7 (diff)
parent0f89abf56abbd0e1c6e3cef9813e6d9f05383c1e (diff)
Merge branch 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason: "I have two more small fixes this week: Qu's fix avoids unneeded COW during fallocate, and Christian found a memory leak in the error handling of an earlier fix" * 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs: fix possible leak in btrfs_ioctl_balance() btrfs: Avoid truncate tailing page if fallocate range doesn't exceed inode size
-rw-r--r--fs/btrfs/file.c2
-rw-r--r--fs/btrfs/ioctl.c5
2 files changed, 5 insertions, 2 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index b823fac91c92..8c6f247ba81d 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2584,7 +2584,7 @@ static long btrfs_fallocate(struct file *file, int mode,
alloc_start);
if (ret)
goto out;
- } else {
+ } else if (offset + len > inode->i_size) {
/*
* If we are fallocating from the end of the file onward we
* need to zero out the end of the page if i_size lands in the
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 3e3e6130637f..8d20f3b1cab0 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -4641,7 +4641,7 @@ locked:
if (bctl->flags & ~(BTRFS_BALANCE_ARGS_MASK | BTRFS_BALANCE_TYPE_MASK)) {
ret = -EINVAL;
- goto out_bargs;
+ goto out_bctl;
}
do_balance:
@@ -4655,12 +4655,15 @@ do_balance:
need_unlock = false;
ret = btrfs_balance(bctl, bargs);
+ bctl = NULL;
if (arg) {
if (copy_to_user(arg, bargs, sizeof(*bargs)))
ret = -EFAULT;
}
+out_bctl:
+ kfree(bctl);
out_bargs:
kfree(bargs);
out_unlock: