linux-kernel - Re: [PATCH v1] fs: hugetlb: simplify remove_inode

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Message-ID: <f3fa9edc-370c-4087-a201-6419185a0e72@kernel.org>
Date: Wed, 4 Feb 2026 12:41:04 +0100
From: "David Hildenbrand (arm)" <david@...nel.org>
To: Jiaqi Yan <jiaqiyan@...gle.com>, jane.chu@...cle.com,
 muchun.song@...ux.dev
Cc: osalvador@...e.de, william.roche@...cle.com, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] fs: hugetlb: simplify remove_inode_hugepages() return
 type

On 2/3/26 00:36, Jiaqi Yan wrote:
> When remove_inode_hugepages is introduced in
> commit c86272287bc6 ("hugetlb: create remove_inode_single_folio to remove single file folio")
> it used to return a boolean to indicate if it bailed out due to race with
> page faults. However, since the race is already solved by [1],
> remove_inode_hugepages() doesn't have any path to return false anymore.
> 
> Simplify remove_inode_hugepages() return type to void, remove the
> unnecessary ret variable, and adjust the call site in
> remove_inode_hugepages(). No functional change in this commit.
> 
> [1] https://lore.kernel.org/all/20220914221810.95771-10-mike.kravetz@oracle.com
> 
> Suggested-by: Jane Chu <jane.chu@...cle.com>
> Signed-off-by: Jiaqi Yan <jiaqiyan@...gle.com>
> ---
>   fs/hugetlbfs/inode.c | 18 +++++++-----------
>   1 file changed, 7 insertions(+), 11 deletions(-)
> 
> diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
> index 3b4c152c5c73a..83d71cea7e384 100644
> --- a/fs/hugetlbfs/inode.c
> +++ b/fs/hugetlbfs/inode.c
> @@ -515,13 +515,11 @@ hugetlb_vmdelete_list(struct rb_root_cached *root, pgoff_t start, pgoff_t end,
>    * Called with hugetlb fault mutex held.
>    * Returns true if page was actually removed, false otherwise.
>    */
> -static bool remove_inode_single_folio(struct hstate *h, struct inode *inode,
> -					struct address_space *mapping,
> -					struct folio *folio, pgoff_t index,
> -					bool truncate_op)
> +static void remove_inode_single_folio(struct hstate *h, struct inode *inode,
> +				      struct address_space *mapping,
> +				      struct folio *folio, pgoff_t index,
> +				      bool truncate_op)

While you are touching this, this would look better with two-tab 
alignment on second parameter line.

Acked-by: David Hildenbrand (arm) <david@...nel.org>

-- 
Cheers,

David