fs/ntfs3: Do not use driver own alloc wrappers

Problem with these wrapper is that we cannot take off example GFP_NOFS
flag. It is not recomended use those in all places. Also if we change
one driver specific wrapper to kernel wrapper then it would look really
weird. People should be most familiar with kernel wrappers so let's just
use those ones.

Driver specific alloc wrapper also confuse some static analyzing tools,
good example is example kernels checkpatch tool. After we converter
these to kernel specific then warnings is showed.

Following Coccinelle script was used to automate changing.

virtual patch

@alloc depends on patch@
expression x;
expression y;
@@
(
-	ntfs_malloc(x)
+	kmalloc(x, GFP_NOFS)
|
-	ntfs_zalloc(x)
+	kzalloc(x, GFP_NOFS)
|
-	ntfs_vmalloc(x)
+	kvmalloc(x, GFP_NOFS)
|
-	ntfs_free(x)
+	kfree(x)
|
-	ntfs_vfree(x)
+	kvfree(x)
|
-	ntfs_memdup(x, y)
+	kmemdup(x, y, GFP_NOFS)
)

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 59344985c2e8..8d27c520bec5 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -900,7 +900,7 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from)
 		return -EOPNOTSUPP;
 	}
 
-	pages = ntfs_malloc(pages_per_frame * sizeof(struct page *));
+	pages = kmalloc(pages_per_frame * sizeof(struct page *), GFP_NOFS);
 	if (!pages)
 		return -ENOMEM;
 
@@ -1076,7 +1076,7 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from)
 	}
 
 out:
-	ntfs_free(pages);
+	kfree(pages);
 
 	current->backing_dev_info = NULL;