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/linux-5.10/fs/overlayfs/
Dexport.c41 * Before encoding a non-upper directory file handle from real layer N, we need
53 * copied up and renamed, upper dir /a will be indexed by lower dir /a from
93 /* We can get upper/overlay path from indexed/lower dentry */ in ovl_connectable_layer()
158 * encoding also after copy up. If non-pure upper is not indexed, then it was
160 * about staying consistent with pre copy up encoding and we encode an upper
161 * file handle. Overlay root dentry is a private case of non-indexed upper.
168 * Pure upper | U
169 * Non-indexed upper | U
170 * Indexed upper | L (*)
171 * Non-upper | L (*)
[all …]
Dnamei.c173 * upper file handle could become stale when upper file is in ovl_decode_real_fh()
473 is_upper ? "upper" : "origin", real, in ovl_verify_set_fh()
478 /* Get upper dentry from index */
482 struct dentry *upper; in ovl_index_upper() local
491 upper = ovl_decode_real_fh(fh, ovl_upper_mnt(ofs), true); in ovl_index_upper()
494 if (IS_ERR_OR_NULL(upper)) in ovl_index_upper()
495 return upper ?: ERR_PTR(-ESTALE); in ovl_index_upper()
497 if (!d_is_dir(upper)) { in ovl_index_upper()
498 pr_warn_ratelimited("invalid index upper (%pd2, upper=%pd2).\n", in ovl_index_upper()
499 index, upper); in ovl_index_upper()
[all …]
Ddir.c233 static int ovl_set_opaque_xerr(struct dentry *dentry, struct dentry *upper, in ovl_set_opaque_xerr() argument
238 err = ovl_check_setxattr(dentry, upper, OVL_XATTR_OPAQUE, "y", 1, xerr); in ovl_set_opaque_xerr()
248 * Fail with -EIO when trying to create opaque dir and upper doesn't in ovl_set_opaque()
256 * Common operations required to be done after creation of file on upper.
303 /* Force lookup of new upper hardlink to find its lower */ in ovl_instantiate()
367 struct dentry *upper; in ovl_clear_empty() local
388 upper = upperpath.dentry; in ovl_clear_empty()
389 if (upper->d_parent->d_inode != udir) in ovl_clear_empty()
397 err = ovl_copy_xattr(dentry->d_sb, upper, opaquedir); in ovl_clear_empty()
411 err = ovl_do_rename(wdir, opaquedir, udir, upper, RENAME_EXCHANGE); in ovl_clear_empty()
[all …]
Dcopy_up.c332 struct dentry *upper) in ovl_set_origin() argument
340 * up and a pure upper inode. in ovl_set_origin()
349 * Do not fail when upper doesn't support xattrs. in ovl_set_origin()
351 err = ovl_check_setxattr(dentry, upper, OVL_XATTR_ORIGIN, fh->buf, in ovl_set_origin()
358 /* Store file handle of @upper dir in @index dir entry */
359 static int ovl_set_upper_fh(struct ovl_fs *ofs, struct dentry *upper, in ovl_set_upper_fh() argument
365 fh = ovl_encode_real_fh(upper, true); in ovl_set_upper_fh()
381 struct dentry *upper) in ovl_create_index() argument
393 * to upper dir. in ovl_create_index()
414 err = ovl_set_upper_fh(OVL_FS(dentry->d_sb), upper, temp); in ovl_create_index()
[all …]
Dinode.c116 * (upper fsid is 0). The lowest xinobit is reserved for mapping in ovl_map_dev_ino()
202 * upper files, so we cannot use the lower origin st_ino in ovl_getattr()
212 * upper hardlink is not broken and that a redirected in ovl_getattr()
239 * no origin on upper, we can end up here. in ovl_getattr()
266 * Return the overlay inode nlinks for indexed upper inodes. in ovl_getattr()
267 * Overlay inode nlink counts the union of the upper hardlinks in ovl_getattr()
268 * and non-covered lower hardlinks. It does not include the upper in ovl_getattr()
555 * upper fs:
617 * To avoid ino collision with legitimate xino values from upper in ovl_map_ino()
682 * With inodes index enabled, an overlay inode nlink counts the union of upper
[all …]
Dsuper.c138 struct dentry *upper; in ovl_dentry_revalidate_common() local
142 upper = ovl_dentry_upper(dentry); in ovl_dentry_revalidate_common()
143 if (upper) in ovl_dentry_revalidate_common()
144 ret = ovl_revalidate_real(upper, flags, weak); in ovl_dentry_revalidate_common()
257 /* Sync real dirty inodes in upper filesystem (if it exists) */
294 * Get the filesystem statistics. As writes always target the upper layer
295 * filesystem pass the statfs to the upper filesystem (if it exists)
595 /* Workdir/index are useless in non-upper mount */ in ovl_parse_opt()
598 pr_info("option \"workdir=%s\" is useless in a non-upper mount, ignore\n", in ovl_parse_opt()
604 pr_info("option \"index=on\" is useless in a non-upper mount, ignore\n"); in ovl_parse_opt()
[all …]
/linux-5.10/Documentation/filesystems/
Doverlayfs.rst27 upper filesystem that is providing the object. Similarly st_ino will
85 Upper and Lower
88 An overlay filesystem combines two filesystems - an 'upper' filesystem
90 object in the 'upper' filesystem is visible while the object in the
92 merged with the 'upper' object.
94 It would be more correct to refer to an upper and lower 'directory
97 requirement that the root of a filesystem be given for either upper or
102 overlayfs. The upper filesystem will normally be writable and if it
113 upper and lower filesystems and refers to a non-directory in either,
114 then the lower object is hidden - the name refers only to the upper
[all …]
/linux-5.10/arch/parisc/kernel/
Dsignal32.c45 sure to clear the upper 32-bits */ in restore_sigcontext32()
52 /* Load upper half */ in restore_sigcontext32()
66 /* Load upper half */ in restore_sigcontext32()
69 DBG(2,"restore_sigcontext32: upper half of iaoq[0] = %#lx\n", compat_regt); in restore_sigcontext32()
74 /* Load upper half */ in restore_sigcontext32()
77 DBG(2,"restore_sigcontext32: upper half of iaoq[1] = %#lx\n", compat_regt); in restore_sigcontext32()
84 /* Load the upper half for iasq */ in restore_sigcontext32()
87 DBG(2,"restore_sigcontext32: upper half of iasq[0] = %#lx\n", compat_regt); in restore_sigcontext32()
90 /* Load the upper half for iasq */ in restore_sigcontext32()
93 DBG(2,"restore_sigcontext32: upper half of iasq[1] = %#lx\n", compat_regt); in restore_sigcontext32()
[all …]
/linux-5.10/fs/btrfs/
Dbackref.h176 /* List of upper level edges, which link this node to its parents */
177 struct list_head upper; member
198 * 1 if corresponding block has been COWed but some upper level block
213 #define UPPER 1 macro
216 * Represent an edge connecting upper and lower backref nodes.
220 * list[LOWER] is linked to btrfs_backref_node::upper of lower level
221 * node, and list[UPPER] is linked to btrfs_backref_node::lower of
222 * upper level node.
224 * Also, build_backref_tree() uses list[UPPER] for pending edges, before
225 * linking list[UPPER] to its upper level nodes.
[all …]
Dbackref.c2505 INIT_LIST_HEAD(&node->upper);
2528 * upper edges and any uncached nodes in the path.
2536 struct btrfs_backref_node *upper; local
2543 while (!list_empty(&node->upper)) {
2544 edge = list_entry(node->upper.next, struct btrfs_backref_edge,
2546 upper = edge->node[UPPER];
2548 list_del(&edge->list[UPPER]);
2551 if (RB_EMPTY_NODE(&upper->rb_node)) {
2552 BUG_ON(!list_empty(&node->upper));
2554 node = upper;
[all …]
/linux-5.10/arch/mips/include/asm/
Dmaar.h32 * @upper: The highest address that the MAAR pair will affect. Must be
41 phys_addr_t upper, unsigned attrs) in write_maar_pair() argument
45 BUG_ON(((upper & 0xffff) != 0xffff) in write_maar_pair()
46 || ((upper & ~0xffffull) & ~(MIPS_MAAR_ADDR << 4))); in write_maar_pair()
52 * Write the upper address & attributes (both MIPS_MAAR_VL and in write_maar_pair()
57 write_c0_maar(((upper >> 4) & MIPS_MAAR_ADDR) | attrs); in write_maar_pair()
60 upper >>= MIPS_MAARX_ADDR_SHIFT; in write_maar_pair()
61 writex_c0_maar(((upper >> 4) & MIPS_MAARX_ADDR) | MIPS_MAARX_VH); in write_maar_pair()
90 * @upper: The highest address that the MAAR pair will affect. Must be
97 * addresses from lower to upper inclusive.
[all …]
/linux-5.10/net/tipc/
Dname_table.c53 * @upper: service range upper bound
55 * @max: largest 'upper' in this node subtree
63 u32 upper; member
90 #define service_range_upper(sr) ((sr)->upper)
99 ((sr)->lower <= (end) && (sr)->upper >= (start)) in RB_DECLARE_CALLBACKS_MAX()
222 static struct publication *tipc_publ_create(u32 type, u32 lower, u32 upper, in tipc_publ_create() argument
233 publ->upper = upper; in tipc_publ_create()
272 u32 lower, u32 upper) in tipc_service_find_range() argument
276 service_range_foreach_match(sr, sc, lower, upper) { in tipc_service_find_range()
278 if (sr->lower == lower && sr->upper == upper) in tipc_service_find_range()
[all …]
Dname_table.h56 * @upper: name sequence upper bound
79 u32 upper; member
116 void tipc_nametbl_mc_lookup(struct net *net, u32 type, u32 lower, u32 upper,
121 u32 upper, struct tipc_nlist *nodes);
126 u32 upper, u32 scope, u32 port,
128 int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 upper,
131 u32 lower, u32 upper, u32 scope,
134 u32 lower, u32 upper,
/linux-5.10/drivers/power/supply/
Dbq27xxx_battery_hdq.c45 int upper, lower; in bq27xxx_battery_hdq_read() local
51 * lower and the upper part in bq27xxx_battery_hdq_read()
53 upper = w1_bq27000_read(sl, reg + 1); in bq27xxx_battery_hdq_read()
55 temp = upper; in bq27xxx_battery_hdq_read()
56 if (upper < 0) in bq27xxx_battery_hdq_read()
57 return upper; in bq27xxx_battery_hdq_read()
63 upper = w1_bq27000_read(sl, reg + 1); in bq27xxx_battery_hdq_read()
64 } while (temp != upper && --timeout); in bq27xxx_battery_hdq_read()
69 return (upper << 8) | lower; in bq27xxx_battery_hdq_read()
/linux-5.10/Documentation/filesystems/ext4/
Dgroup_descr.rst116 - Upper 32-bits of location of block bitmap.
120 - Upper 32-bits of location of inodes bitmap.
124 - Upper 32-bits of location of inodes table.
128 - Upper 16-bits of free block count.
132 - Upper 16-bits of free inode count.
136 - Upper 16-bits of directory count.
140 - Upper 16-bits of unused inode count.
144 - Upper 32-bits of location of snapshot exclusion bitmap.
148 - Upper 16-bits of the block bitmap checksum.
152 - Upper 16-bits of the inode bitmap checksum.
/linux-5.10/fs/ext4/
Dinode-test.c19 * For constructing the nonnegative timestamp upper bound value.
30 * For constructing the negative timestamp upper bound value.
35 * Upper bound for nanoseconds value supported by the encoding.
45 "1969-12-31 Upper bound of 32bit < 0 timestamp, no extra bits"
49 "2038-01-19 Upper bound of 32bit >=0 timestamp, no extra bits"
53 "2106-02-07 Upper bound of 32bit <0 timestamp, lo extra sec bit on"
57 "2174-02-25 Upper bound of 32bit >=0 timestamp, lo extra sec bit on"
61 "2242-03-16 Upper bound of 32bit <0 timestamp, hi extra sec bit on"
65 "2310-04-04 Upper bound of 32bit >=0 timestamp, hi extra sec bit on"
67 "2310-04-04 Upper bound of 32bit>=0 timestamp, hi extra sec bit 1. 1 ns"
[all …]
/linux-5.10/arch/arm/kernel/
Dmodule.c88 u32 upper, lower, sign, j1, j2; in apply_relocate() local
224 upper = __mem_to_opcode_thumb16(*(u16 *)loc); in apply_relocate()
232 * S = upper[10] = offset[24] in apply_relocate()
235 * imm10 = upper[9:0] = offset[21:12] in apply_relocate()
240 sign = (upper >> 10) & 1; in apply_relocate()
245 ((upper & 0x03ff) << 12) | in apply_relocate()
274 upper = (u16)((upper & 0xf800) | (sign << 10) | in apply_relocate()
280 *(u16 *)loc = __opcode_to_mem_thumb16(upper); in apply_relocate()
286 upper = __mem_to_opcode_thumb16(*(u16 *)loc); in apply_relocate()
292 * i = upper[10] in apply_relocate()
[all …]
/linux-5.10/net/llc/
Dllc_if.c2 * llc_if.c - Defines LLC interface to upper layer
30 * llc_build_and_send_pkt - Connection data sending for upper layers.
34 * This function is called when upper layer wants to send data using
71 * llc_establish_connection - Called by upper layer to establish a conn
77 * Upper layer calls this to establish an LLC connection with a remote
80 * establishment will inform to upper layer via calling it's confirm
121 * llc_send_disc - Called by upper layer to close a connection
124 * Upper layer calls this when it wants to close an established LLC
/linux-5.10/arch/x86/include/asm/
Ddiv64.h49 u32 upper; in div_u64_rem() local
51 upper = d.v32[1]; in div_u64_rem()
53 if (upper >= divisor) { in div_u64_rem()
54 d.v32[1] = upper / divisor; in div_u64_rem()
55 upper %= divisor; in div_u64_rem()
58 "rm" (divisor), "0" (d.v32[0]), "1" (upper)); in div_u64_rem()
/linux-5.10/drivers/video/fbdev/
Darcfb.c247 static void arcfb_lcd_update_page(struct arcfb_par *par, unsigned int upper, in arcfb_lcd_update_page() argument
257 yindex = upper >> 6; in arcfb_lcd_update_page()
260 ks108_set_yaddr(par, chipindex, upper/8); in arcfb_lcd_update_page()
264 (upper * linesize); in arcfb_lcd_update_page()
295 * lcd chips. update_page uses the upper/left values to decide which
296 * chip to select for the right. upper is needed for setting the page
302 unsigned int distance, upper, lower; in arcfb_lcd_update_vert() local
305 upper = top; in arcfb_lcd_update_vert()
310 arcfb_lcd_update_page(par, upper, left, right, 8); in arcfb_lcd_update_vert()
311 upper = lower + 1; in arcfb_lcd_update_vert()
[all …]
/linux-5.10/arch/m68k/fpsp040/
Dbinstr.S23 | to force the first byte formed to have a 0 in the upper 4 bits.
40 | upper word of d0. If it is the ls digit, write the word
51 | d2: upper 32-bits of fraction for mul by 8
53 | d4: upper 32-bits of fraction for mul by 2
106 addxl %d4,%d2 |add with extend upper 32 bits
109 swap %d6 |with d6 = 0; put 0 in upper word
117 aslw #4,%d7 |first digit in upper 4 bits d7b
131 lslw #4,%d7 |move it to upper 4 bits
/linux-5.10/arch/m68k/include/asm/
Damigahw.h280 unsigned int :28, second1:4; /* upper digit */
282 unsigned int :28, minute1:4; /* upper digit */
284 unsigned int :28, hour1:4; /* upper digit */
287 unsigned int :28, day1:4; /* upper digit */
289 unsigned int :28, month1:4; /* upper digit */
291 unsigned int :28, year1:4; /* upper digit */
302 unsigned int :28, second1:4; /* upper digit */
304 unsigned int :28, minute1:4; /* upper digit */
306 unsigned int :28, hour1:4; /* upper digit */
308 unsigned int :28, day1:4; /* upper digit */
[all …]
/linux-5.10/drivers/clocksource/
Darm_global_timer.c55 * 1. Read the upper 32-bit timer counter register
57 * 3. Read the upper 32-bit timer counter register again. If the value is
58 * different to the 32-bit upper value read previously, go back to step 2.
65 u32 upper, old_upper; in _gt_counter_read() local
67 upper = readl_relaxed(gt_base + GT_COUNTER1); in _gt_counter_read()
69 old_upper = upper; in _gt_counter_read()
71 upper = readl_relaxed(gt_base + GT_COUNTER1); in _gt_counter_read()
72 } while (upper != old_upper); in _gt_counter_read()
74 counter = upper; in _gt_counter_read()
90 * 3. Write the upper 32-bit Comparator Value Register.
/linux-5.10/arch/x86/kernel/
Dprobe_roms.c201 unsigned long start, length, upper; in probe_roms() local
206 upper = adapter_rom_resources[0].start; in probe_roms()
207 for (start = video_rom_resource.start; start < upper; start += 2048) { in probe_roms()
229 if (start < upper) in probe_roms()
230 start = upper; in probe_roms()
234 upper = system_rom_resource.start; in probe_roms()
242 upper = extension_rom_resource.start; in probe_roms()
247 for (i = 0; i < ARRAY_SIZE(adapter_rom_resources) && start < upper; start += 2048) { in probe_roms()
259 if (!length || start + length > upper || !romchecksum(rom, length)) in probe_roms()
/linux-5.10/drivers/thermal/
Dgov_step_wise.c23 * c. if the trend is THERMAL_TREND_RAISE_FULL, use upper limit
55 next_target = (cur_state + 1) >= instance->upper ? in get_target_state()
56 instance->upper : in get_target_state()
69 next_target = cur_state < instance->upper ? in get_target_state()
70 (cur_state + 1) : instance->upper; in get_target_state()
77 next_target = instance->upper; in get_target_state()
86 if (next_target > instance->upper) in get_target_state()
87 next_target = instance->upper; in get_target_state()

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