8 /* Here we keep miscellaneous functions which are used all over the UBI code */
10 #include "ubi.h"
14  * @ubi: UBI device description object
22 int ubi_calc_data_len(const struct ubi_device *ubi, const void *buf,  in ubi_calc_data_len()  argument
27 	ubi_assert(!(length & (ubi->min_io_size - 1)));  in ubi_calc_data_len()
34 	length = ALIGN(i + 1, ubi->min_io_size);  in ubi_calc_data_len()
40  * @ubi: UBI device description object
48 int ubi_check_volume(struct ubi_device *ubi, int vol_id)  in ubi_check_volume()  argument
52 	struct ubi_volume *vol = ubi->volumes[vol_id];  in ubi_check_volume()
71 		err = ubi_eba_read_leb(ubi, vol, i, buf, 0, size, 1);  in ubi_check_volume()
85  * @ubi: UBI device description object
90  * to availability. Should be called with ubi->volumes_lock held.
92 void ubi_update_reserved(struct ubi_device *ubi)  in ubi_update_reserved()  argument
94 	int need = ubi->beb_rsvd_level - ubi->beb_rsvd_pebs;  in ubi_update_reserved()
96 	if (need <= 0 || ubi->avail_pebs == 0)  in ubi_update_reserved()
99 	need = min_t(int, need, ubi->avail_pebs);  in ubi_update_reserved()
100 	ubi->avail_pebs -= need;  in ubi_update_reserved()
101 	ubi->rsvd_pebs += need;  in ubi_update_reserved()
102 	ubi->beb_rsvd_pebs += need;  in ubi_update_reserved()
103 	ubi_msg(ubi, "reserved more %d PEBs for bad PEB handling", need);  in ubi_update_reserved()
109  * @ubi: UBI device description object
111 void ubi_calculate_reserved(struct ubi_device *ubi)  in ubi_calculate_reserved()  argument
117 	ubi->beb_rsvd_level = ubi->bad_peb_limit - ubi->bad_peb_count;  in ubi_calculate_reserved()
118 	if (ubi->beb_rsvd_level < 0) {  in ubi_calculate_reserved()
119 		ubi->beb_rsvd_level = 0;  in ubi_calculate_reserved()
120 …ubi_warn(ubi, "number of bad PEBs (%d) is above the expected limit (%d), not reserving any PEBs fo…  in ubi_calculate_reserved()
121 			 ubi->bad_peb_count, ubi->bad_peb_limit);  in ubi_calculate_reserved()
144 /* Normal UBI messages */
145 void ubi_msg(const struct ubi_device *ubi, const char *fmt, ...)  in ubi_msg()  argument
155 	pr_notice(UBI_NAME_STR "%d: %pV\n", ubi->ubi_num, &vaf);  in ubi_msg()
160 /* UBI warning messages */
161 void ubi_warn(const struct ubi_device *ubi, const char *fmt, ...)  in ubi_warn()  argument
172 		ubi->ubi_num, __builtin_return_address(0), &vaf);  in ubi_warn()
177 /* UBI error messages */
178 void ubi_err(const struct ubi_device *ubi, const char *fmt, ...)  in ubi_err()  argument
189 	       ubi->ubi_num, __builtin_return_address(0), &vaf);  in ubi_err()