Huangzhaoyang <huangzhaoy...@gmail.com> wrote:
[adding linux-cachefs to the cc list]
> Kswapd uses GFP_KERNEL as gfp_flag which make the judgment of
> context is unexpected. fix it by using current_is_kswapd.
>
> Signed-off-by: Zhaoyang Huang <zhaoyang.hu...@unisoc.com>
> ---
> fs/afs/file.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/afs/file.c b/fs/afs/file.c
> index eb11d04..6c199d5 100644
> --- a/fs/afs/file.c
> +++ b/fs/afs/file.c
> @@ -485,7 +485,7 @@ static int afs_releasepage(struct page *page, gfp_t
> gfp_flags)
> * elected to wait */
> #ifdef CONFIG_AFS_FSCACHE
> if (PageFsCache(page)) {
> - if (!(gfp_flags & __GFP_DIRECT_RECLAIM) || !(gfp_flags &
> __GFP_FS))
> + if (current_is_kswapd() || !(gfp_flags & __GFP_FS))
> return false;
> wait_on_page_fscache(page);
> }
I have several of these in my fscache-rewrite branch, spread across a number
of filesystems. Should I fix all of them the same way?
fs/9p/vfs_addr.c: if (!gfpflags_allow_blocking(gfp) || !(gfp &
__GFP_FS))
fs/afs/file.c: if (!gfpflags_allow_blocking(gfp) || !(gfp & __GFP_FS))
fs/nfs/file.c: if (!gfpflags_allow_blocking(gfp) || !(gfp & __GFP_FS))
fs/nfs/fscache.h: if (!gfpflags_allow_blocking(gfp) || !(gfp &
__GFP_FS))
David
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