Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #ifndef __LOG_DOT_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #define __LOG_DOT_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/writeback.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "incore.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "inode.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  * gfs2_log_lock - acquire the right to mess with the log manager
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  * @sdp: the filesystem
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) __acquires(&sdp->sd_log_lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	spin_lock(&sdp->sd_log_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  * gfs2_log_unlock - release the right to mess with the log manager
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)  * @sdp: the filesystem
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) __releases(&sdp->sd_log_lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	spin_unlock(&sdp->sd_log_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 					  unsigned int value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	if (++value == sdp->sd_jdesc->jd_blocks) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		value = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	sdp->sd_log_head = sdp->sd_log_tail = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	if (gfs2_is_jdata(ip) || !gfs2_is_ordered(sdp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	if (list_empty(&ip->i_ordered)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 		spin_lock(&sdp->sd_ordered_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 		if (list_empty(&ip->i_ordered))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 			list_add(&ip->i_ordered, &sdp->sd_log_ordered);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 		spin_unlock(&sdp->sd_ordered_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) extern void gfs2_ordered_del_inode(struct gfs2_inode *ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) extern void gfs2_remove_from_ail(struct gfs2_bufdata *bd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 				  u64 seq, u32 tail, u32 lblock, u32 flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 				  int op_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 			   u32 type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) extern void log_flush_wait(struct gfs2_sbd *sdp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) extern int gfs2_logd(void *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) extern void gfs2_glock_remove_revoke(struct gfs2_glock *gl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) extern void gfs2_write_revokes(struct gfs2_sbd *sdp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #endif /* __LOG_DOT_H__ */