forked from Minki/linux
433675486a
iscsit_close_session() uses in_interrupt() to decide if it needs to check the return value of iscsit_check_session_usage_count() if it was not able to sleep. The usage of in_interrupt() in drivers is phased out and Linus clearly requested that code which changes behaviour depending on context should either be separated or the context be conveyed in an argument passed by the caller, which usually knows the context. iscsit_close_session() has two callers: - iscsit_handle_time2retain_timeout() A timer_list callback. - iscsit_close_connection() Runs in preemptible context, acquires a mutex. Add an argument to iscsit_close_session() indicating if sleeping is possible. Link: https://lore.kernel.org/r/20201220203638.43615-2-bigeasy@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
61 lines
2.5 KiB
C
61 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef ISCSI_TARGET_H
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#define ISCSI_TARGET_H
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#include <linux/types.h>
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#include <linux/spinlock.h>
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struct iscsi_cmd;
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struct iscsi_conn;
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struct iscsi_np;
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struct iscsi_portal_group;
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struct iscsi_session;
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struct iscsi_tpg_np;
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struct kref;
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struct sockaddr_storage;
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extern struct iscsi_tiqn *iscsit_get_tiqn_for_login(unsigned char *);
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extern struct iscsi_tiqn *iscsit_get_tiqn(unsigned char *, int);
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extern void iscsit_put_tiqn_for_login(struct iscsi_tiqn *);
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extern struct iscsi_tiqn *iscsit_add_tiqn(unsigned char *);
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extern void iscsit_del_tiqn(struct iscsi_tiqn *);
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extern int iscsit_access_np(struct iscsi_np *, struct iscsi_portal_group *);
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extern void iscsit_login_kref_put(struct kref *);
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extern int iscsit_deaccess_np(struct iscsi_np *, struct iscsi_portal_group *,
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struct iscsi_tpg_np *);
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extern bool iscsit_check_np_match(struct sockaddr_storage *,
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struct iscsi_np *, int);
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extern struct iscsi_np *iscsit_add_np(struct sockaddr_storage *,
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int);
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extern int iscsit_reset_np_thread(struct iscsi_np *, struct iscsi_tpg_np *,
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struct iscsi_portal_group *, bool);
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extern int iscsit_del_np(struct iscsi_np *);
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extern int iscsit_reject_cmd(struct iscsi_cmd *cmd, u8, unsigned char *);
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extern void iscsit_set_unsolicited_dataout(struct iscsi_cmd *);
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extern int iscsit_logout_closesession(struct iscsi_cmd *, struct iscsi_conn *);
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extern int iscsit_logout_closeconnection(struct iscsi_cmd *, struct iscsi_conn *);
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extern int iscsit_logout_removeconnforrecovery(struct iscsi_cmd *, struct iscsi_conn *);
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extern int iscsit_send_async_msg(struct iscsi_conn *, u16, u8, u8);
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extern int iscsit_build_r2ts_for_cmd(struct iscsi_conn *, struct iscsi_cmd *, bool recovery);
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extern void iscsit_thread_get_cpumask(struct iscsi_conn *);
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extern int iscsi_target_tx_thread(void *);
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extern int iscsi_target_rx_thread(void *);
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extern int iscsit_close_connection(struct iscsi_conn *);
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extern int iscsit_close_session(struct iscsi_session *, bool can_sleep);
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extern void iscsit_fail_session(struct iscsi_session *);
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extern void iscsit_stop_session(struct iscsi_session *, int, int);
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extern int iscsit_release_sessions_for_tpg(struct iscsi_portal_group *, int);
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extern struct iscsit_global *iscsit_global;
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extern const struct target_core_fabric_ops iscsi_ops;
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extern struct kmem_cache *lio_dr_cache;
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extern struct kmem_cache *lio_ooo_cache;
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extern struct kmem_cache *lio_qr_cache;
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extern struct kmem_cache *lio_r2t_cache;
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extern struct ida sess_ida;
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extern struct mutex auth_id_lock;
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#endif /*** ISCSI_TARGET_H ***/
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