/* * Copyright (c) 2010 Werner Fink, Jiri Slaby * * Licensed under GPLv2 */ #include #include #include #include #include /* * This is handler for /proc/consoles */ static int show_console_dev(struct seq_file *m, void *v) { static const struct { short flag; char name; } con_flags[] = { { CON_ENABLED, 'E' }, { CON_CONSDEV, 'C' }, { CON_BOOT, 'B' }, { CON_PRINTBUFFER, 'p' }, { CON_BRL, 'b' }, { CON_ANYTIME, 'a' }, }; char flags[ARRAY_SIZE(con_flags) + 1]; struct console *con = v; unsigned int a; dev_t dev = 0; if (con->device) { const struct tty_driver *driver; int index; driver = con->device(con, &index); if (driver) { dev = MKDEV(driver->major, driver->minor_start); dev += index; } } for (a = 0; a < ARRAY_SIZE(con_flags); a++) flags[a] = (con->flags & con_flags[a].flag) ? con_flags[a].name : ' '; flags[a] = 0; seq_setwidth(m, 21 - 1); seq_printf(m, "%s%d", con->name, con->index); seq_pad(m, ' '); seq_printf(m, "%c%c%c (%s)", con->read ? 'R' : '-', con->write ? 'W' : '-', con->unblank ? 'U' : '-', flags); if (dev) seq_printf(m, " %4d:%d", MAJOR(dev), MINOR(dev)); seq_printf(m, "\n"); return 0; } static void *c_start(struct seq_file *m, loff_t *pos) { struct console *con; loff_t off = 0; console_lock(); for_each_console(con) if (off++ == *pos) break; return con; } static void *c_next(struct seq_file *m, void *v, loff_t *pos) { struct console *con = v; ++*pos; return con->next; } static void c_stop(struct seq_file *m, void *v) { console_unlock(); } static const struct seq_operations consoles_op = { .start = c_start, .next = c_next, .stop = c_stop, .show = show_console_dev }; static int consoles_open(struct inode *inode, struct file *file) { return seq_open(file, &consoles_op); } static const struct file_operations proc_consoles_operations = { .open = consoles_open, .read = seq_read, .llseek = seq_lseek, .release = seq_release, }; static int __init proc_consoles_init(void) { proc_create("consoles", 0, NULL, &proc_consoles_operations); return 0; } fs_initcall(proc_consoles_init); ee-defrag.c?h=nds-private-remove&id=970d14e3989160ee9e97c7d75ecbc893fd29dab9'>diff
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authorBhumika Goyal <bhumirks@gmail.com>2017-01-25 00:54:07 +0530
committerDan Williams <dan.j.williams@intel.com>2017-01-31 18:16:30 -0800
commit970d14e3989160ee9e97c7d75ecbc893fd29dab9 (patch)
tree4a731cac4efedb17f86a912ec56c151d26792abe /fs/btrfs/tree-defrag.c
parent7a308bb3016f57e5be11a677d15b821536419d36 (diff)
nvdimm: constify device_type structures
Declare device_type structure as const as it is only stored in the type field of a device structure. This field is of type const, so add const to declaration of device_type structure. File size before: text data bss dec hex filename 19278 3199 16 22493 57dd nvdimm/namespace_devs.o File size after: text data bss dec hex filename 19929 3160 16 23105 5a41 nvdimm/namespace_devs.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'fs/btrfs/tree-defrag.c')