| /Linux-v6.6/Documentation/filesystems/ |
| D | overlayfs.rst | 26 non-directory objects may report an st_dev from the lower filesystem or
83 Upper and Lower
87 and a 'lower' filesystem. When a name exists in both filesystems, the
89 'lower' filesystem is either hidden or, in the case of directories,
92 It would be more correct to refer to an upper and lower 'directory
96 lower.
98 A wide range of filesystems supported by Linux can be the lower filesystem,
100 needed for OverlayFS to work. The lower filesystem does not need to be
101 writable. The lower filesystem can even be another overlayfs. The upper
113 upper and lower filesystems and refers to a non-directory in either,
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| /Linux-v6.6/kernel/trace/ |
| D | pid_list.c | 83 * If chunk->data has no lower chunks, it will be the same in upper_empty()
94 unsigned int *upper2, unsigned int *lower) in pid_split() argument
105 *lower = pid & LOWER_MASK; in pid_split()
111 unsigned int upper2, unsigned int lower) in pid_join() argument
115 (lower & LOWER_MASK); in pid_join()
136 unsigned int lower; in trace_pid_list_is_set() local
142 if (pid_split(pid, &upper1, &upper2, &lower) < 0) in trace_pid_list_is_set()
150 ret = test_bit(lower, lower_chunk->data); in trace_pid_list_is_set()
175 unsigned int lower; in trace_pid_list_set() local
181 if (pid_split(pid, &upper1, &upper2, &lower) < 0) in trace_pid_list_set()
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| /Linux-v6.6/arch/mips/include/asm/ |
| D | maar.h | 30 * @lower: The lowest address that the MAAR pair will affect. Must be
38 * specified by attrs to the range of addresses from lower to higher.
40 static inline void write_maar_pair(unsigned idx, phys_addr_t lower, in write_maar_pair() argument
44 BUG_ON(lower & (0xffff | ~(MIPS_MAAR_ADDR << 4))); in write_maar_pair()
65 /* Write the lower address & attributes */ in write_maar_pair()
68 write_c0_maar((lower >> 4) | attrs); in write_maar_pair()
71 lower >>= MIPS_MAARX_ADDR_SHIFT; in write_maar_pair()
72 writex_c0_maar(((lower >> 4) & MIPS_MAARX_ADDR) | MIPS_MAARX_VH); in write_maar_pair()
88 * @lower: The lowest address that the MAAR pair will affect. Must be
97 * addresses from lower to upper inclusive.
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| /Linux-v6.6/drivers/net/ethernet/aquantia/atlantic/hw_atl/ |
| D | hw_atl_llh_internal.h | 111 /* lower bit position of bitfield itr_reg_res_dsbl */
121 /* lower bit position of bitfield itr_reset */
133 /* lower bit position of bitfield rsc_delay */
140 /* lower bit position of bitfield dca{d}_cpuid[7:0] */
156 /* lower bit position of bitfield dca_en */
174 /* lower bit position of bitfield dca_mode[3:0] */
194 /* lower bit position of bitfield desc{d}_data_size[4:0] */
213 /* lower bit position of bitfield dca{d}_desc_en */
232 /* lower bit position of bitfield desc{d}_en */
252 /* lower bit position of bitfield desc{d}_hdr_size[4:0] */
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| /Linux-v6.6/Documentation/filesystems/ext4/ |
| D | group_descr.rst | 38 checksum is the lower 16 bits of the checksum of the FS UUID, the group
56 - Lower 32-bits of location of block bitmap.
60 - Lower 32-bits of location of inode bitmap.
64 - Lower 32-bits of location of inode table.
68 - Lower 16-bits of free block count.
72 - Lower 16-bits of free inode count.
76 - Lower 16-bits of directory count.
84 - Lower 32-bits of location of snapshot exclusion bitmap.
88 - Lower 16-bits of the block bitmap checksum.
92 - Lower 16-bits of the inode bitmap checksum.
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| /Linux-v6.6/fs/overlayfs/ |
| D | export.c | 43 * lower decoded dentry. This is done by following the overlay ancestry up to a
53 * copied up and renamed, upper dir /a will be indexed by lower dir /a from
56 * dentry from the connected lower dentry /a/b/c.
61 * and when the time comes to decode the file handle from lower dentry /a/b/c,
66 * entry /a in the lower layers above layer N and find the indexed dir /a from
68 * will need to verify there are no redirects in lower layers above N. In the
87 * lower layer in ovl_connectable_layer()
93 /* We can get upper/overlay path from indexed/lower dentry */ in ovl_connectable_layer()
99 * have the same uppermost lower layer as the origin's layer. We may need to
175 * L = lower file handle
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| D | inode.c | 187 * If lower filesystem supports NFS file handles, this also guaranties in ovl_getattr()
205 * Lower hardlinks may be broken on copy up to different in ovl_getattr()
206 * upper files, so we cannot use the lower origin st_ino in ovl_getattr()
210 * same dir on a lower layer. With the "verify_lower" in ovl_getattr()
211 * feature, we do not use the lower origin st_ino, if in ovl_getattr()
227 * If we are querying a metacopy dentry and lower in ovl_getattr()
230 * vfs_getattr(). If lower itself is metacopy, then in ovl_getattr()
242 * If lower is not same as lowerdata or if there was in ovl_getattr()
277 * and non-covered lower hardlinks. It does not include the upper in ovl_getattr()
469 * of the POSIX ACLs retrieved from the lower layer to this function to not
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| D | params.c | 338 path_put(&ctx->lower[nr].path); in ovl_parse_param_drop_lowerdir()
339 kfree(ctx->lower[nr].name); in ovl_parse_param_drop_lowerdir()
340 ctx->lower[nr].name = NULL; in ovl_parse_param_drop_lowerdir()
350 * Set "/lower1", "/lower2", and "/lower3" as lower layers and
351 * "/data1" and "/data2" as data lower layers. Any existing lower
368 /* drop all existing lower layers */ in ovl_parse_param_lowerdir()
375 pr_err("cannot append lower layer"); in ovl_parse_param_lowerdir()
390 pr_err("too many lower directories, limit is %d\n", OVL_MAX_STACK); in ovl_parse_param_lowerdir()
420 l = krealloc_array(ctx->lower, nr_lower, sizeof(*ctx->lower), in ovl_parse_param_lowerdir()
425 ctx->lower = l; in ovl_parse_param_lowerdir()
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| D | namei.c | 50 * that will stop further lookup in lower layers (d->stop=true) in ovl_check_redirect()
52 * element and that should force continue lookup in lower in ovl_check_redirect()
170 * Make sure that the stored uuid matches the uuid of the lower in ovl_decode_real_fh()
185 * Treat stale file handle to lower file as "origin unknown". in ovl_decode_real_fh()
379 /* Only regular file is acceptable as lower data */ in ovl_lookup_data_layer()
423 * If lower fs uuid is not unique among lower fs we cannot match in ovl_check_origin_fh()
583 * OVL_XATTR_ORIGIN and that origin file handle can be decoded to lower path.
703 * Lookup in indexdir for the index entry of a lower real inode or a copy up
704 * origin inode. The index entry name is the hex representation of the lower
707 * If the index dentry in negative, then either no lower aliases have been
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| D | super.c | 34 struct dentry *real = NULL, *lower; in ovl_d_real() local
65 lower = ovl_dentry_lowerdata(dentry); in ovl_d_real()
66 if (!lower) in ovl_d_real()
68 real = lower; in ovl_d_real()
421 /* Check if lower fs has 32bit inode numbers */ in ovl_lower_dir()
524 * attempted to be used as a lower layer in a new overlay mount.
548 pr_err("upper fs is r/o, try multi-lower layers mount\n"); in ovl_get_upper()
888 /* Verify lower root is upper root origin */ in ovl_get_indexdir()
953 * We allow using single lower with null uuid for index and nfs_export in ovl_lower_uuid_ok()
954 * for example to support those features with single lower squashfs. in ovl_lower_uuid_ok()
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| /Linux-v6.6/drivers/base/regmap/ |
| D | regcache-maple.c | 43 unsigned long *entry, *upper, *lower; in regcache_maple_write() local
62 lower = mas_find(&mas, reg - 1); in regcache_maple_write()
63 if (lower) { in regcache_maple_write()
81 if (lower) in regcache_maple_write()
82 memcpy(entry, lower, lower_sz); in regcache_maple_write()
100 kfree(lower); in regcache_maple_write()
112 unsigned long *entry, *lower, *upper; in regcache_maple_drop() local
117 lower = NULL; in regcache_maple_drop()
135 lower = kmemdup(entry, ((min - mas.index) * in regcache_maple_drop()
138 if (!lower) { in regcache_maple_drop()
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| /Linux-v6.6/fs/ecryptfs/ |
| D | read_write.c | 19 * @offset: Byte offset in the lower file to which to write the data
20 * @size: Number of bytes from @data to write at @offset in the lower
23 * Write data to the lower file.
45 * lower file
49 * lower file
53 * the contents of @page_for_lower to the lower inode.
86 * written to the lower page cache (via VFS writes). This function
87 * takes care of all the address translation to locations in the lower
209 * @offset: Byte offset in the lower file from which to read the data
210 * @size: Number of bytes to read from @offset of the lower file and
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| D | kthread.c | 38 * the lower file with RW permissions.
108 * @lower_file: Result of dentry_open by root on lower dentry
109 * @lower_dentry: Lower dentry for file to open
110 * @lower_mnt: Lower vfsmount for file to open
113 * This function gets a r/w file opened against the lower dentry.
132 * lower file is fput() when all eCryptfs files for the inode are in ecryptfs_privileged_open()
147 "aborting privileged request to open lower file\n", in ecryptfs_privileged_open()
|
| /Linux-v6.6/arch/powerpc/mm/ptdump/ |
| D | bats.c | 15 static void bat_show_603(struct seq_file *m, int idx, u32 lower, u32 upper, bool is_d) in bat_show_603() argument
20 phys_addr_t brpn = PHYS_BAT_ADDR(lower); in bat_show_603()
44 if (lower & BPP_RX) in bat_show_603()
46 else if (lower & BPP_RW) in bat_show_603()
51 seq_puts(m, lower & _PAGE_WRITETHRU ? "w " : " "); in bat_show_603()
52 seq_puts(m, lower & _PAGE_NO_CACHE ? "i " : " "); in bat_show_603()
53 seq_puts(m, lower & _PAGE_COHERENT ? "m " : " "); in bat_show_603()
54 seq_puts(m, lower & _PAGE_GUARDED ? "g " : " "); in bat_show_603()
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| /Linux-v6.6/drivers/nvmem/ |
| D | stm32-romem.c | 30 u8 lower; member
37 u8 lower; member
92 if (otp < priv->lower) { in stm32_bsec_read()
93 /* read lower data from shadow registers */ in stm32_bsec_read()
140 if (offset + bytes >= priv->lower * 4) in stm32_bsec_write()
159 return stm32_bsec_optee_ta_write(priv->ctx, priv->lower, offset, buf, bytes); in stm32_bsec_pta_write()
211 priv->lower = 0; in stm32_romem_probe()
221 priv->lower = cfg->lower; in stm32_romem_probe()
253 * - Lower: 1K bits, 2:1 redundancy, incremental bit programming
254 * => 32 (x 32-bits) lower shadow registers = words 0 to 31
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| /Linux-v6.6/drivers/net/ethernet/aquantia/atlantic/hw_atl2/ |
| D | hw_atl2_llh_internal.h | 38 /* lower bit position of bitfield rpf_new_rpf_en */
57 /* lower bit position of bitfield l2_uc_req_tag0{f}[2:0] */
75 /* lower bit position of bitfield rpf_l2_bc_req_tag */
92 /* lower bit position of bitfield rpf_rss_red1_data[4:0] */
111 /* lower bit position of bitfield vlan_req_tag0{f}[3:0] */
127 /* Lower bit position of bitfield rx_q{Q}_tc_map[2:0] */
146 /* lower bit position of bitfield tx_tc_q_rand_map_en */
164 /* lower bit position of bitfield tx_buffer_clk_gate_en */
180 /* lower bit position of bitfield tx_q_tc_map{q} */
199 /* lower bit position of bitfield data_tc_arb_mode */
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| /Linux-v6.6/net/tipc/ |
| D | subscr.c | 53 tipc_evt_write(evt, found_lower, p->sr.lower); in tipc_sub_send_event()
58 tipc_evt_write(evt, found_lower, s->seq.lower); in tipc_sub_send_event()
76 u32 found_lower = found->lower; in tipc_sub_check_overlap()
79 if (found_lower < subscribed->lower) in tipc_sub_check_overlap()
80 found_lower = subscribed->lower; in tipc_sub_check_overlap()
135 u32 lower = tipc_sub_read(s, seq.lower); in tipc_sub_subscribe() local
142 lower > upper) { in tipc_sub_subscribe()
158 sub->s.seq.lower = lower; in tipc_sub_subscribe()
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| D | name_table.c | 53 * @lower: service range lower bound
63 u32 lower; member
100 ((sr)->lower <= (end) && (sr)->upper >= (start)) in RB_DECLARE_CALLBACKS_MAX()
142 * subtree. If not, it has lower > end, then nodes on
158 if (sr->lower <= end &&
188 * subtree. If not, it has lower > end, then any next in service_range_match_next()
208 if (sr->lower <= end) { in service_range_match_next()
287 service_range_foreach_match(sr, sc, ua->sr.lower, ua->sr.upper) { in tipc_service_find_range()
289 if (sr->lower == ua->sr.lower && sr->upper == ua->sr.upper) in tipc_service_find_range()
301 u32 lower = p->sr.lower; in tipc_service_create_range() local
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| /Linux-v6.6/arch/arm/kernel/ |
| D | module.c | 91 * lower cache efficiency for variables that are referenced often from many
129 u32 upper, lower, sign, j1, j2; in apply_relocate() local
324 lower = __mem_to_opcode_thumb16(*(u16 *)(loc + 2)); in apply_relocate()
335 * imm11 = lower[10:0] = offset[11:1] in apply_relocate()
336 * J1 = lower[13] in apply_relocate()
337 * J2 = lower[11] in apply_relocate()
340 j1 = (lower >> 13) & 1; in apply_relocate()
341 j2 = (lower >> 11) & 1; in apply_relocate()
345 ((lower & 0x07ff) << 1); in apply_relocate()
374 lower = (u16)((lower & 0xd000) | in apply_relocate()
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| /Linux-v6.6/fs/ext4/ |
| D | inode-test.c | 14 * For constructing the nonnegative timestamp lower bound value.
25 * For constructing the negative timestamp lower bound value.
43 "1901-12-13 Lower bound of 32bit < 0 timestamp, no extra bits"
47 "1970-01-01 Lower bound of 32bit >=0 timestamp, no extra bits"
51 "2038-01-19 Lower bound of 32bit <0 timestamp, lo extra sec bit on"
55 "2106-02-07 Lower bound of 32bit >=0 timestamp, lo extra sec bit on"
59 "2174-02-25 Lower bound of 32bit <0 timestamp, hi extra sec bit on"
63 "2242-03-16 Lower bound of 32bit >=0 timestamp, hi extra sec bit on"
69 "2378-04-22 Lower bound of 32bit>= timestamp. Extra sec bits 1. Max ns"
71 "2378-04-22 Lower bound of 32bit >=0 timestamp. All extra sec bits on"
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| /Linux-v6.6/fs/btrfs/ |
| D | backref.h | 352 /* List of lower level edges, which link this node to its children */
353 struct list_head lower; member
386 #define LOWER 0 macro
390 * Represent an edge connecting upper and lower backref nodes.
394 * list[LOWER] is linked to btrfs_backref_node::upper of lower level
395 * node, and list[UPPER] is linked to btrfs_backref_node::lower of
456 struct btrfs_backref_node *lower, in btrfs_backref_link_edge() argument
460 ASSERT(upper && lower && upper->level == lower->level + 1); in btrfs_backref_link_edge()
461 edge->node[LOWER] = lower; in btrfs_backref_link_edge()
464 list_add_tail(&edge->list[LOWER], &lower->upper); in btrfs_backref_link_edge()
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| /Linux-v6.6/drivers/power/supply/ |
| D | bq27xxx_battery_hdq.c | 45 int upper, lower; in bq27xxx_battery_hdq_read() local
51 * lower and the upper part in bq27xxx_battery_hdq_read()
59 lower = w1_bq27000_read(sl, reg); in bq27xxx_battery_hdq_read()
60 if (lower < 0) in bq27xxx_battery_hdq_read()
61 return lower; in bq27xxx_battery_hdq_read()
69 return (upper << 8) | lower; in bq27xxx_battery_hdq_read()
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| /Linux-v6.6/arch/m68k/include/asm/ |
| D | amigahw.h | 279 unsigned int :28, second2:4; /* lower digit */
281 unsigned int :28, minute2:4; /* lower digit */
283 unsigned int :28, hour2:4; /* lower digit */
286 unsigned int :28, day2:4; /* lower digit */
288 unsigned int :28, month2:4; /* lower digit */
290 unsigned int :28, year2:4; /* lower digit */
301 unsigned int :28, second2:4; /* lower digit */
303 unsigned int :28, minute2:4; /* lower digit */
305 unsigned int :28, hour2:4; /* lower digit */
307 unsigned int :28, day2:4; /* lower digit */
[all …]
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| /Linux-v6.6/drivers/net/ethernet/microchip/lan966x/ |
| D | lan966x_lag.c | 284 struct net_device *lower; in lan966x_lag_netdev_prechangeupper() local
288 netdev_for_each_lower_dev(dev, lower, iter) { in lan966x_lag_netdev_prechangeupper()
289 if (!lan966x_netdevice_check(lower)) in lan966x_lag_netdev_prechangeupper()
292 port = netdev_priv(lower); in lan966x_lag_netdev_prechangeupper()
296 err = lan966x_port_prechangeupper(lower, dev, info); in lan966x_lag_netdev_prechangeupper()
308 struct net_device *lower; in lan966x_lag_netdev_changeupper() local
312 netdev_for_each_lower_dev(dev, lower, iter) { in lan966x_lag_netdev_changeupper()
313 if (!lan966x_netdevice_check(lower)) in lan966x_lag_netdev_changeupper()
316 port = netdev_priv(lower); in lan966x_lag_netdev_changeupper()
320 err = lan966x_port_changeupper(lower, dev, info); in lan966x_lag_netdev_changeupper()
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| /Linux-v6.6/drivers/thermal/ |
| D | gov_step_wise.c | 24 * If the temperature is lower than a trip point,
26 * b. if the trend is THERMAL_TREND_DROPPING, use lower cooling
28 * equals lower limit, deactivate the thermal instance
48 next_target = clamp((cur_state + 1), instance->lower, instance->upper); in get_target_state()
58 next_target = clamp((cur_state + 1), instance->lower, instance->upper); in get_target_state()
61 if (cur_state <= instance->lower) in get_target_state()
64 next_target = clamp((cur_state - 1), instance->lower, instance->upper); in get_target_state()
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