diff options
| -rw-r--r-- | fs/nilfs2/ioctl.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index 35ba60ea961..02e91e167ca 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -34,9 +34,6 @@ #include "dat.h" -#define KMALLOC_SIZE_MIN 4096 /* 4KB */ -#define KMALLOC_SIZE_MAX 131072 /* 128 KB */ - static int nilfs_ioctl_wrap_copy(struct the_nilfs *nilfs, struct nilfs_argv *argv, int dir, ssize_t (*dofunc)(struct the_nilfs *, @@ -44,21 +41,20 @@ static int nilfs_ioctl_wrap_copy(struct the_nilfs *nilfs, void *, size_t, size_t)) { void *buf; - size_t ksize, maxmembs, total, n; + size_t maxmembs, total, n; ssize_t nr; int ret, i; if (argv->v_nmembs == 0) return 0; - for (ksize = KMALLOC_SIZE_MAX; ksize >= KMALLOC_SIZE_MIN; ksize /= 2) { - buf = kmalloc(ksize, GFP_NOFS); - if (buf != NULL) - break; - } - if (ksize < KMALLOC_SIZE_MIN) + if (argv->v_size > PAGE_SIZE) + return -EINVAL; + + buf = (void *)__get_free_pages(GFP_NOFS, 0); + if (unlikely(!buf)) return -ENOMEM; - maxmembs = ksize / argv->v_size; + maxmembs = PAGE_SIZE / argv->v_size; ret = 0; total = 0; @@ -89,7 +85,7 @@ static int nilfs_ioctl_wrap_copy(struct the_nilfs *nilfs, } argv->v_nmembs = total; - kfree(buf); + free_pages((unsigned long)buf, 0); return ret; } |