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erofs: get rid of the remaining kmap_atomic() 

It's unnecessary to use kmap_atomic() compared with kmap_local_page().
In addition, kmap_atomic() is deprecated now.

Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Yue Hu <huyue2@coolpad.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20230627161240.331-1-hsiangkao@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
This commit is contained in:
Gao Xiang 2023-06-28 00:12:39 +08:00
parent 06c2afb862
commit 123ec246eb
1 changed files with 9 additions and 9 deletions
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18
fs/erofs/decompressor.c
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@ -148,7 +148,7 @@ static void *z_erofs_lz4_handle_overlap(struct z_erofs_lz4_decompress_ctx *ctx,
*maptype = 0;
return inpage;
}
kunmap_atomic(inpage);
kunmap_local(inpage);
might_sleep();
src = erofs_vm_map_ram(rq->in, ctx->inpages);
if (!src)
@ -162,7 +162,7 @@ static void *z_erofs_lz4_handle_overlap(struct z_erofs_lz4_decompress_ctx *ctx,
src = erofs_get_pcpubuf(ctx->inpages);
if (!src) {
DBG_BUGON(1);
kunmap_atomic(inpage);
kunmap_local(inpage);
return ERR_PTR(-EFAULT);
}
@ -173,9 +173,9 @@ static void *z_erofs_lz4_handle_overlap(struct z_erofs_lz4_decompress_ctx *ctx,
min_t(unsigned int, total, PAGE_SIZE - *inputmargin);
if (!inpage)
inpage = kmap_atomic(*in);
inpage = kmap_local_page(*in);
memcpy(tmp, inpage + *inputmargin, page_copycnt);
kunmap_atomic(inpage);
kunmap_local(inpage);
inpage = NULL;
tmp += page_copycnt;
total -= page_copycnt;
@ -214,7 +214,7 @@ static int z_erofs_lz4_decompress_mem(struct z_erofs_lz4_decompress_ctx *ctx,
int ret, maptype;
DBG_BUGON(*rq->in == NULL);
headpage = kmap_atomic(*rq->in);
headpage = kmap_local_page(*rq->in);
/* LZ4 decompression inplace is only safe if zero_padding is enabled */
if (erofs_sb_has_zero_padding(EROFS_SB(rq->sb))) {
@ -223,7 +223,7 @@ static int z_erofs_lz4_decompress_mem(struct z_erofs_lz4_decompress_ctx *ctx,
min_t(unsigned int, rq->inputsize,
rq->sb->s_blocksize - rq->pageofs_in));
if (ret) {
kunmap_atomic(headpage);
kunmap_local(headpage);
return ret;
}
may_inplace = !((rq->pageofs_in + rq->inputsize) &
@ -261,7 +261,7 @@ static int z_erofs_lz4_decompress_mem(struct z_erofs_lz4_decompress_ctx *ctx,
}
if (maptype == 0) {
kunmap_atomic(headpage);
kunmap_local(headpage);
} else if (maptype == 1) {
vm_unmap_ram(src, ctx->inpages);
} else if (maptype == 2) {
@ -289,7 +289,7 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq,
/* one optimized fast path only for non bigpcluster cases yet */
if (ctx.inpages == 1 && ctx.outpages == 1 && !rq->inplace_io) {
DBG_BUGON(!*rq->out);
dst = kmap_atomic(*rq->out);
dst = kmap_local_page(*rq->out);
dst_maptype = 0;
goto dstmap_out;
}
@ -311,7 +311,7 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq,
dstmap_out:
ret = z_erofs_lz4_decompress_mem(&ctx, dst + rq->pageofs_out);
if (!dst_maptype)
kunmap_atomic(dst);
kunmap_local(dst);
else if (dst_maptype == 2)
vm_unmap_ram(dst, ctx.outpages);
return ret;