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Revision 4249a05ff670e7b1aeea77f1a5451080ea86c88d authored by Alexey Romanov on 13 October 2022, 11:28:25 UTC, committed by Andrew Morton on 21 October 2022, 04:27:21 UTC 
zsmalloc: zs_destroy_pool: add size_class NULL check
 
Inside the zs_destroy_pool() function, there can still be NULL size_class
pointers: if when the next size_class is allocated, inside
zs_create_pool() function, kzalloc will return NULL and handling the error
condition, zs_create_pool() will call zs_destroy_pool().

Link: https://lkml.kernel.org/r/20221013112825.61869-1-avromanov@sberdevices.ru
Fixes: f24263a5a076 ("zsmalloc: remove unnecessary size_class NULL check")
Signed-off-by: Alexey Romanov <avromanov@sberdevices.ru>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
1 parent 7329e3e
Raw File
cancel.h 
// SPDX-License-Identifier: GPL-2.0

#include <linux/io_uring_types.h>

struct io_cancel_data {
	struct io_ring_ctx *ctx;
	union {
		u64 data;
		struct file *file;
	};
	u32 flags;
	int seq;
};


int io_async_cancel_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_async_cancel(struct io_kiocb *req, unsigned int issue_flags);

int io_try_cancel(struct io_uring_task *tctx, struct io_cancel_data *cd,
		  unsigned int issue_flags);
void init_hash_table(struct io_hash_table *table, unsigned size);

int io_sync_cancel(struct io_ring_ctx *ctx, void __user *arg);
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