diff options
40 files changed, 394 insertions, 158 deletions
diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/kernel/power7-pmu.c index 388cf57ad82..018d094d92f 100644 --- a/arch/powerpc/kernel/power7-pmu.c +++ b/arch/powerpc/kernel/power7-pmu.c @@ -317,7 +317,7 @@ static int power7_generic_events[] = { */ static int power7_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { [C(L1D)] = { /* RESULT_ACCESS RESULT_MISS */ - [C(OP_READ)] = { 0x400f0, 0xc880 }, + [C(OP_READ)] = { 0xc880, 0x400f0 }, [C(OP_WRITE)] = { 0, 0x300f0 }, [C(OP_PREFETCH)] = { 0xd8b8, 0 }, }, @@ -327,8 +327,8 @@ static int power7_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { [C(OP_PREFETCH)] = { 0x408a, 0 }, }, [C(LL)] = { /* RESULT_ACCESS RESULT_MISS */ - [C(OP_READ)] = { 0x6080, 0x6084 }, - [C(OP_WRITE)] = { 0x6082, 0x6086 }, + [C(OP_READ)] = { 0x16080, 0x26080 }, + [C(OP_WRITE)] = { 0x16082, 0x26082 }, [C(OP_PREFETCH)] = { 0, 0 }, }, [C(DTLB)] = { /* RESULT_ACCESS RESULT_MISS */ diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index f0ee7905540..8daab33fc17 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -886,7 +886,7 @@ void notrace init_irqwork_curcpu(void) * Therefore you cannot make any OBP calls, not even prom_printf, * from these two routines. */ -static void __cpuinit register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask) +static void __cpuinit notrace register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask) { unsigned long num_entries = (qmask + 1) / 64; unsigned long status; diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c index 2c0cc72d295..b75bf502cd4 100644 --- a/arch/sparc/kernel/nmi.c +++ b/arch/sparc/kernel/nmi.c @@ -103,7 +103,7 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) } if (!touched && __get_cpu_var(last_irq_sum) == sum) { local_inc(&__get_cpu_var(alert_counter)); - if (local_read(&__get_cpu_var(alert_counter)) == 5 * nmi_hz) + if (local_read(&__get_cpu_var(alert_counter)) == 30 * nmi_hz) die_nmi("BUG: NMI Watchdog detected LOCKUP", regs, panic_on_timeout); } else { diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c index eedffb4fec2..39fc6af21b7 100644 --- a/arch/sparc/prom/misc_64.c +++ b/arch/sparc/prom/misc_64.c @@ -88,7 +88,7 @@ void prom_cmdline(void) /* Drop into the prom, but completely terminate the program. * No chance of continuing. */ -void prom_halt(void) +void notrace prom_halt(void) { #ifdef CONFIG_SUN_LDOMS if (ldom_domaining_enabled) diff --git a/arch/sparc/prom/printf.c b/arch/sparc/prom/printf.c index 660943ee4c2..ca869266b9f 100644 --- a/arch/sparc/prom/printf.c +++ b/arch/sparc/prom/printf.c @@ -14,14 +14,14 @@ */ #include <linux/kernel.h> +#include <linux/compiler.h> #include <asm/openprom.h> #include <asm/oplib.h> static char ppbuf[1024]; -void -prom_write(const char *buf, unsigned int n) +void notrace prom_write(const char *buf, unsigned int n) { char ch; @@ -33,8 +33,7 @@ prom_write(const char *buf, unsigned int n) } } -void -prom_printf(const char *fmt, ...) +void notrace prom_printf(const char *fmt, ...) { va_list args; int i; diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c index 973be2f4419..4e28b35024e 100644 --- a/drivers/char/n_tty.c +++ b/drivers/char/n_tty.c @@ -300,8 +300,7 @@ static int do_output_char(unsigned char c, struct tty_struct *tty, int space) if (space < 2) return -1; tty->canon_column = tty->column = 0; - tty_put_char(tty, '\r'); - tty_put_char(tty, c); + tty->ops->write(tty, "\r\n", 2); return 2; } tty->canon_column = tty->column; diff --git a/drivers/char/pty.c b/drivers/char/pty.c index d083c73d784..b33d6688e91 100644 --- a/drivers/char/pty.c +++ b/drivers/char/pty.c @@ -109,21 +109,13 @@ static int pty_space(struct tty_struct *to) * the other side of the pty/tty pair. */ -static int pty_write(struct tty_struct *tty, const unsigned char *buf, - int count) +static int pty_write(struct tty_struct *tty, const unsigned char *buf, int c) { struct tty_struct *to = tty->link; - int c; if (tty->stopped) return 0; - /* This isn't locked but our 8K is quite sloppy so no - big deal */ - - c = pty_space(to); - if (c > count) - c = count; if (c > 0) { /* Stuff the data into the input queue of the other end */ c = tty_insert_flip_string(to, buf, c); diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c index 95fe0452dae..6c6a09b1c0f 100644 --- a/drivers/input/keyboard/atkbd.c +++ b/drivers/input/keyboard/atkbd.c @@ -880,6 +880,14 @@ static unsigned int atkbd_hp_zv6100_forced_release_keys[] = { }; /* + * Perform fixup for HP (Compaq) Presario R4000 R4100 R4200 that don't generate + * release for their volume buttons + */ +static unsigned int atkbd_hp_r4000_forced_release_keys[] = { + 0xae, 0xb0, -1U +}; + +/* * Samsung NC10,NC20 with Fn+F? key release not working */ static unsigned int atkbd_samsung_forced_release_keys[] = { @@ -1537,6 +1545,33 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = { .driver_data = atkbd_hp_zv6100_forced_release_keys, }, { + .ident = "HP Presario R4000", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"), + }, + .callback = atkbd_setup_forced_release, + .driver_data = atkbd_hp_r4000_forced_release_keys, + }, + { + .ident = "HP Presario R4100", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"), + }, + .callback = atkbd_setup_forced_release, + .driver_data = atkbd_hp_r4000_forced_release_keys, + }, + { + .ident = "HP Presario R4200", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"), + }, + .callback = atkbd_setup_forced_release, + .driver_data = atkbd_hp_r4000_forced_release_keys, + }, + { .ident = "Inventec Symphony", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"), diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h index ae04d8a494e..ccbf23ece8e 100644 --- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -382,6 +382,14 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"), }, }, + { + .ident = "Acer Aspire 5536", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5536"), + DMI_MATCH(DMI_PRODUCT_VERSION, "0100"), + }, + }, { } }; diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index 3710ff88fc1..556acff3952 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -171,6 +171,14 @@ static int set_chunk_size(struct dm_exception_store *store, */ chunk_size_ulong = round_up(chunk_size_ulong, PAGE_SIZE >> 9); + return dm_exception_store_set_chunk_size(store, chunk_size_ulong, + error); +} + +int dm_exception_store_set_chunk_size(struct dm_exception_store *store, + unsigned long chunk_size_ulong, + char **error) +{ /* Check chunk_size is a power of 2 */ if (!is_power_of_2(chunk_size_ulong)) { *error = "Chunk size is not a power of 2"; @@ -183,6 +191,11 @@ static int set_chunk_size(struct dm_exception_store *store, return -EINVAL; } + if (chunk_size_ulong > INT_MAX >> SECTOR_SHIFT) { + *error = "Chunk size is too high"; + return -EINVAL; + } + store->chunk_size = chunk_size_ulong; store->chunk_mask = chunk_size_ulong - 1; store->chunk_shift = ffs(chunk_size_ulong) - 1; diff --git a/drivers/md/dm-exception-store.h b/drivers/md/dm-exception-store.h index 2442c8c0789..812c71872ba 100644 --- a/drivers/md/dm-exception-store.h +++ b/drivers/md/dm-exception-store.h @@ -168,6 +168,10 @@ static inline chunk_t sector_to_chunk(struct dm_exception_store *store, int dm_exception_store_type_register(struct dm_exception_store_type *type); int dm_exception_store_type_unregister(struct dm_exception_store_type *type); +int dm_exception_store_set_chunk_size(struct dm_exception_store *store, + unsigned long chunk_size_ulong, + char **error); + int dm_exception_store_create(struct dm_target *ti, int argc, char **argv, unsigned *args_used, struct dm_exception_store **store); diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c index e69b9656099..6e186b1a062 100644 --- a/drivers/md/dm-log-userspace-base.c +++ b/drivers/md/dm-log-userspace-base.c @@ -21,6 +21,7 @@ struct log_c { struct dm_target *ti; uint32_t region_size; region_t region_count; + uint64_t luid; char uuid[DM_UUID_LEN]; char *usr_argv_str; @@ -63,7 +64,7 @@ static int userspace_do_request(struct log_c *lc, const char *uuid, * restored. */ retry: - r = dm_consult_userspace(uuid, request_type, data, + r = dm_consult_userspace(uuid, lc->luid, request_type, data, data_size, rdata, rdata_size); if (r != -ESRCH) @@ -74,14 +75,15 @@ retry: set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(2*HZ); DMWARN("Attempting to contact userspace log server..."); - r = dm_consult_userspace(uuid, DM_ULOG_CTR, lc->usr_argv_str, + r = dm_consult_userspace(uuid, lc->luid, DM_ULOG_CTR, + lc->usr_argv_str, strlen(lc->usr_argv_str) + 1, NULL, NULL); if (!r) break; } DMINFO("Reconnected to userspace log server... DM_ULOG_CTR complete"); - r = dm_consult_userspace(uuid, DM_ULOG_RESUME, NULL, + r = dm_consult_userspace(uuid, lc->luid, DM_ULOG_RESUME, NULL, 0, NULL, NULL); if (!r) goto retry; @@ -111,10 +113,9 @@ static int build_constructor_string(struct dm_target *ti, return -ENOMEM; } - for (i = 0, str_size = 0; i < argc; i++) - str_size += sprintf(str + str_size, "%s ", argv[i]); - str_size += sprintf(str + str_size, "%llu", - (unsigned long long)ti->len); + str_size = sprintf(str, "%llu", (unsigned long long)ti->len); + for (i = 0; i < argc; i++) + str_size += sprintf(str + str_size, " %s", argv[i]); *ctr_str = str; return str_size; @@ -154,6 +155,9 @@ static int userspace_ctr(struct dm_dirty_log *log, struct dm_target *ti, return -ENOMEM; } + /* The ptr value is sufficient for local unique id */ + lc->luid = (uint64_t)lc; + lc->ti = ti; if (strlen(argv[0]) > (DM_UUID_LEN - 1)) { @@ -173,7 +177,7 @@ static int userspace_ctr(struct dm_dirty_log *log, struct dm_target *ti, } /* Send table string */ - r = dm_consult_userspace(lc->uuid, DM_ULOG_CTR, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_CTR, ctr_str, str_size, NULL, NULL); if (r == -ESRCH) { @@ -183,7 +187,7 @@ static int userspace_ctr(struct dm_dirty_log *log, struct dm_target *ti, /* Since the region size does not change, get it now */ rdata_size = sizeof(rdata); - r = dm_consult_userspace(lc->uuid, DM_ULOG_GET_REGION_SIZE, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_GET_REGION_SIZE, NULL, 0, (char *)&rdata, &rdata_size); if (r) { @@ -212,7 +216,7 @@ static void userspace_dtr(struct dm_dirty_log *log) int r; struct log_c *lc = log->context; - r = dm_consult_userspace(lc->uuid, DM_ULOG_DTR, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_DTR, NULL, 0, NULL, NULL); @@ -227,7 +231,7 @@ static int userspace_presuspend(struct dm_dirty_log *log) int r; struct log_c *lc = log->context; - r = dm_consult_userspace(lc->uuid, DM_ULOG_PRESUSPEND, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_PRESUSPEND, NULL, 0, NULL, NULL); @@ -239,7 +243,7 @@ static int userspace_postsuspend(struct dm_dirty_log *log) int r; struct log_c *lc = log->context; - r = dm_consult_userspace(lc->uuid, DM_ULOG_POSTSUSPEND, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_POSTSUSPEND, NULL, 0, NULL, NULL); @@ -252,7 +256,7 @@ static int userspace_resume(struct dm_dirty_log *log) struct log_c *lc = log->context; lc->in_sync_hint = 0; - r = dm_consult_userspace(lc->uuid, DM_ULOG_RESUME, + r = dm_consult_userspace(lc->uuid, lc->luid, DM_ULOG_RESUME, NULL, 0, NULL, NULL); @@ -561,6 +565,7 @@ static int userspace_status(struct dm_dirty_log *log, status_type_t status_type, char *result, unsigned maxlen) { int r = 0; + char *table_args; size_t sz = (size_t)maxlen; struct log_c *lc = log->context; @@ -577,8 +582,12 @@ static int userspace_status(struct dm_dirty_log *log, status_type_t status_type, break; case STATUSTYPE_TABLE: sz = 0; - DMEMIT("%s %u %s %s", log->type->name, lc->usr_argc + 1, - lc->uuid, lc->usr_argv_str); + table_args = strstr(lc->usr_argv_str, " "); + BUG_ON(!table_args); /* There will always be a ' ' */ + table_args++; + + DMEMIT("%s %u %s %s ", log->type->name, lc->usr_argc, + lc->uuid, table_args); break; } return (r) ? 0 : (int)sz; diff --git a/drivers/md/dm-log-userspace-transfer.c b/drivers/md/dm-log-userspace-transfer.c index 8ce74d95ae4..ba0edad2d04 100644 --- a/drivers/md/dm-log-userspace-transfer.c +++ b/drivers/md/dm-log-userspace-transfer.c @@ -147,7 +147,8 @@ static void cn_ulog_callback(void *data) /** * dm_consult_userspace - * @uuid: log's uuid (must be DM_UUID_LEN in size) + * @uuid: log's universal unique identifier (must be DM_UUID_LEN in size) + * @luid: log's local unique identifier * @request_type: found in include/linux/dm-log-userspace.h * @data: data to tx to the server * @data_size: size of data in bytes @@ -163,7 +164,7 @@ static void cn_ulog_callback(void *data) * * Returns: 0 on success, -EXXX on failure **/ -int dm_consult_userspace(const char *uuid, int request_type, +int dm_consult_userspace(const char *uuid, uint64_t luid, int request_type, char *data, size_t data_size, char *rdata, size_t *rdata_size) { @@ -190,6 +191,7 @@ resend: memset(tfr, 0, DM_ULOG_PREALLOCED_SIZE - overhead_size); memcpy(tfr->uuid, uuid, DM_UUID_LEN); + tfr->luid = luid; tfr->seq = dm_ulog_seq++; /* diff --git a/drivers/md/dm-log-userspace-transfer.h b/drivers/md/dm-log-userspace-transfer.h index c26d8e4e271..04ee874f915 100644 --- a/drivers/md/dm-log-userspace-transfer.h +++ b/drivers/md/dm-log-userspace-transfer.h @@ -11,7 +11,7 @@ int dm_ulog_tfr_init(void); void dm_ulog_tfr_exit(void); -int dm_consult_userspace(const char *uuid, int request_type, +int dm_consult_userspace(const char *uuid, uint64_t luid, int request_type, char *data, size_t data_size, char *rdata, size_t *rdata_size); diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 9726577cde4..33f179e66bf 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -648,7 +648,13 @@ static void do_writes(struct mirror_set *ms, struct bio_list *writes) */ dm_rh_inc_pending(ms->rh, &sync); dm_rh_inc_pending(ms->rh, &nosync); - ms->log_failure = dm_rh_flush(ms->rh) ? 1 : 0; + + /* + * If the flush fails on a previous call and succeeds here, + * we must not reset the log_failure variable. We need + * userspace interaction to do that. + */ + ms->log_failure = dm_rh_flush(ms->rh) ? 1 : ms->log_failure; /* * Dispatch io. diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index 6e3fe4f1493..d5b2e08750d 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -106,6 +106,13 @@ struct pstore { void *zero_area; /* + * An area used for header. The header can be written + * concurrently with metadata (when invalidating the snapshot), + * so it needs a separate buffer. + */ + void *header_area; + + /* * Used to keep track of which metadata area the data in * 'chunk' refers to. */ @@ -148,16 +155,27 @@ static int alloc_area(struct pstore *ps) */ ps->area = vmalloc(len); if (!ps->area) - return r; + goto err_area; ps->zero_area = vmalloc(len); - if (!ps->zero_area) { - vfree(ps->area); - return r; - } + if (!ps->zero_area) + goto err_zero_area; memset(ps->zero_area, 0, len); + ps->header_area = vmalloc(len); + if (!ps->header_area) + goto err_header_area; + return 0; + +err_header_area: + vfree(ps->zero_area); + +err_zero_area: + vfree(ps->area); + +err_area: + return r; } static void free_area(struct pstore *ps) @@ -169,6 +187,10 @@ static void free_area(struct pstore *ps) if (ps->zero_area) vfree(ps->zero_area); ps->zero_area = NULL; + + if (ps->header_area) + vfree(ps->header_area); + ps->header_area = NULL; } struct mdata_req { @@ -188,7 +210,8 @@ static void do_metadata(struct work_struct *work) /* * Read or write a chunk aligned and sized block of data from a device. */ -static int chunk_io(struct pstore *ps, chunk_t chunk, int rw, int metadata) +static int chunk_io(struct pstore *ps, void *area, chunk_t chunk, int rw, + int metadata) { struct dm_io_region where = { .bdev = ps->store->cow->bdev, @@ -198,7 +221,7 @@ static int chunk_io(struct pstore *ps, chunk_t chunk, int rw, int metadata) struct dm_io_request io_req = { .bi_rw = rw, .mem.type = DM_IO_VMA, - .mem.ptr.vma = ps->area, + .mem.ptr.vma = area, .client = ps->io_client, .notify.fn = NULL, }; @@ -240,7 +263,7 @@ static int area_io(struct pstore *ps, int rw) chunk = area_location(ps, ps->current_area); - r = chunk_io(ps, chunk, rw, 0); + r = chunk_io(ps, ps->area, chunk, rw, 0); if (r) return r; @@ -254,20 +277,7 @@ static void zero_memory_area(struct pstore *ps) static int zero_disk_area(struct pstore *ps, chunk_t area) { - struct dm_io_region where = { - .bdev = ps->store->cow->bdev, - .sector = ps->store->chunk_size * area_location(ps, area), - .count = ps->store->chunk_size, - }; - struct dm_io_request io_req = { - .bi_rw = WRITE, - .mem.type = DM_IO_VMA, - .mem.ptr.vma = ps->zero_area, - .client = ps->io_client, - .notify.fn = NULL, - }; - - return dm_io(&io_req, 1, &where, NULL); + return chunk_io(ps, ps->zero_area, area_location(ps, area), WRITE, 0); } static int read_header(struct pstore *ps, int *new_snapshot) @@ -276,6 +286,7 @@ static int read_header(struct pstore *ps, int *new_snapshot) struct disk_header *dh; chunk_t chunk_size; int chunk_size_supplied = 1; + char *chunk_err; /* * Use default chunk size (or hardsect_size, if larger) if none supplied @@ -297,11 +308,11 @@ static int read_header(struct pstore *ps, int *new_snapshot) if (r) return r; - r = chunk_io(ps, 0, READ, 1); + r = chunk_io(ps, ps->header_area, 0, READ, 1); if (r) goto bad; - dh = (struct disk_header *) ps->area; + dh = ps->header_area; if (le32_to_cpu(dh->magic) == 0) { *new_snapshot = 1; @@ -319,20 +330,25 @@ static int read_header(struct pstore *ps, int *new_snapshot) ps->version = le32_to_cpu(dh->version); chunk_size = le32_to_cpu(dh->chunk_size); - if (!chunk_size_supplied || ps->store->chunk_size == chunk_size) + if (ps->store->chunk_size == chunk_size) return 0; - DMWARN("chunk size %llu in device metadata overrides " - "table chunk size of %llu.", - (unsigned long long)chunk_size, - (unsigned long long)ps->store->chunk_size); + if (chunk_size_supplied) + DMWARN("chunk size %llu in device metadata overrides " + "table chunk size of %llu.", + (unsigned long long)chunk_size, + (unsigned long long)ps->store->chunk_size); /* We had a bogus chunk_size. Fix stuff up. */ free_area(ps); - ps->store->chunk_size = chunk_size; - ps->store->chunk_mask = chunk_size - 1; - ps->store->chunk_shift = ffs(chunk_size) - 1; + r = dm_exception_store_set_chunk_size(ps->store, chunk_size, + &chunk_err); + if (r) { + DMERR("invalid on-disk chunk size %llu: %s.", + (unsigned long long)chunk_size, chunk_err); + return r; + } r = dm_io_client_resize(sectors_to_pages(ps->store->chunk_size), ps->io_client); @@ -351,15 +367,15 @@ static int write_header(struct pstore *ps) { struct disk_header *dh; - memset(ps->area, 0, ps->store->chunk_size << SECTOR_SHIFT); + memset(ps->header_area, 0, ps->store->chunk_size << SECTOR_SHIFT); - dh = (struct disk_header *) ps->area; + dh = ps->header_area; dh->magic = cpu_to_le32(SNAP_MAGIC); dh->valid = cpu_to_le32(ps->valid); dh->version = cpu_to_le32(ps->version); dh->chunk_size = cpu_to_le32(ps->store->chunk_size); - return chunk_io(ps, 0, WRITE, 1); + return chunk_io(ps, ps->header_area, 0, WRITE, 1); } /* @@ -679,6 +695,8 @@ static int persistent_ctr(struct dm_exception_store *store, ps->valid = 1; ps->version = SNAPSHOT_DISK_VERSION; ps->area = NULL; + ps->zero_area = NULL; + ps->header_area = NULL; ps->next_free = 2; /* skipping the header and first area */ ps->current_committed = 0; diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index d573165cd2b..57f1bf7f3b7 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -1176,6 +1176,15 @@ static int snapshot_status(struct dm_target *ti, status_type_t type, return 0; } +static int snapshot_iterate_devices(struct dm_target *ti, + iterate_devices_callout_fn fn, void *data) +{ + struct dm_snapshot *snap = ti->private; + + return fn(ti, snap->origin, 0, ti->len, data); +} + + /*----------------------------------------------------------------- * Origin methods *---------------------------------------------------------------*/ @@ -1410,20 +1419,29 @@ static int origin_status(struct dm_target *ti, status_type_t type, char *result, return 0; } +static int origin_iterate_devices(struct dm_target *ti, + iterate_devices_callout_fn fn, void *data) +{ + struct dm_dev *dev = ti->private; + + return fn(ti, dev, 0, ti->len, data); +} + static struct target_type origin_target = { .name = "snapshot-origin", - .version = {1, 6, 0}, + .version = {1, 7, 0}, .module = THIS_MODULE, .ctr = origin_ctr, .dtr = origin_dtr, .map = origin_map, .resume = origin_resume, .status = origin_status, + .iterate_devices = origin_iterate_devices, }; static struct target_type snapshot_target = { .name = "snapshot", - .version = {1, 6, 0}, + .version = {1, 7, 0}, .module = THIS_MODULE, .ctr = snapshot_ctr, .dtr = snapshot_dtr, @@ -1431,6 +1449,7 @@ static struct target_type snapshot_target = { .end_io = snapshot_end_io, .resume = snapshot_resume, .status = snapshot_status, + .iterate_devices = snapshot_iterate_devices, }; static int __init dm_snapshot_init(void) diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c index 4e0e5937e42..3e563d25173 100644 --- a/drivers/md/dm-stripe.c +++ b/drivers/md/dm-stripe.c @@ -329,9 +329,19 @@ static int stripe_iterate_devices(struct dm_target *ti, return ret; } +static void stripe_io_hints(struct dm_target *ti, + struct queue_limits *limits) +{ + struct stripe_c *sc = ti->private; + unsigned chunk_size = (sc->chunk_mask + 1) << 9; + + blk_limits_io_min(limits, chunk_size); + limits->io_opt = chunk_size * sc->stripes; +} + static struct target_type stripe_target = { .name = "striped", - .version = {1, 2, 0}, + .version = {1, 3, 0}, .module = THIS_MODULE, .ctr = stripe_ctr, .dtr = stripe_dtr, @@ -339,6 +349,7 @@ static struct target_type stripe_target = { .end_io = stripe_end_io, .status = stripe_status, .iterate_devices = stripe_iterate_devices, + .io_hints = stripe_io_hints, |