From fdd3cceef46f2c18c618669cfae5c0f47d6982f9 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 2 Sep 2013 20:53:00 +1000 Subject: xfs: factor all the kmalloc-or-vmalloc fallback allocations We have quite a few places now where we do: x = kmem_zalloc(large size) if (!x) x = kmem_zalloc_large(large size) and do a similar dance when freeing the memory. kmem_free() already does the correct freeing dance, and kmem_zalloc_large() is only ever called in these constructs, so just factor it all into kmem_zalloc_large() and kmem_free(). Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers --- fs/xfs/xfs_ioctl.c | 34 +++++++++++----------------------- 1 file changed, 11 insertions(+), 23 deletions(-) (limited to 'fs/xfs/xfs_ioctl.c') diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 21d9c9df9fb7..668e8f4ccf5e 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -456,12 +456,9 @@ xfs_attrlist_by_handle( if (IS_ERR(dentry)) return PTR_ERR(dentry); - kbuf = kmem_zalloc(al_hreq.buflen, KM_SLEEP | KM_MAYFAIL); - if (!kbuf) { - kbuf = kmem_zalloc_large(al_hreq.buflen); - if (!kbuf) - goto out_dput; - } + kbuf = kmem_zalloc_large(al_hreq.buflen, KM_SLEEP); + if (!kbuf) + goto out_dput; cursor = (attrlist_cursor_kern_t *)&al_hreq.pos; error = -xfs_attr_list(XFS_I(dentry->d_inode), kbuf, al_hreq.buflen, @@ -472,12 +469,9 @@ xfs_attrlist_by_handle( if (copy_to_user(al_hreq.buffer, kbuf, al_hreq.buflen)) error = -EFAULT; - out_kfree: - if (is_vmalloc_addr(kbuf)) - kmem_free_large(kbuf); - else - kmem_free(kbuf); - out_dput: +out_kfree: + kmem_free(kbuf); +out_dput: dput(dentry); return error; } @@ -495,12 +489,9 @@ xfs_attrmulti_attr_get( if (*len > XATTR_SIZE_MAX) return EINVAL; - kbuf = kmem_zalloc(*len, KM_SLEEP | KM_MAYFAIL); - if (!kbuf) { - kbuf = kmem_zalloc_large(*len); - if (!kbuf) - return ENOMEM; - } + kbuf = kmem_zalloc_large(*len, KM_SLEEP); + if (!kbuf) + return ENOMEM; error = xfs_attr_get(XFS_I(inode), name, kbuf, (int *)len, flags); if (error) @@ -509,11 +500,8 @@ xfs_attrmulti_attr_get( if (copy_to_user(ubuf, kbuf, *len)) error = EFAULT; - out_kfree: - if (is_vmalloc_addr(kbuf)) - kmem_free_large(kbuf); - else - kmem_free(kbuf); +out_kfree: + kmem_free(kbuf); return error; } -- cgit v1.2.3