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https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-23 20:24:12 +08:00
dm: avoid spaces before function arguments or in favour of tabs
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
This commit is contained in:
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beecc8438c
commit
8ca817c43e
@ -78,9 +78,9 @@ static void __setup_new_cell(struct dm_cell_key *key,
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struct bio *holder,
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struct dm_bio_prison_cell *cell)
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{
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memcpy(&cell->key, key, sizeof(cell->key));
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cell->holder = holder;
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bio_list_init(&cell->bios);
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memcpy(&cell->key, key, sizeof(cell->key));
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cell->holder = holder;
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bio_list_init(&cell->bios);
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}
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static int cmp_keys(struct dm_cell_key *lhs,
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@ -181,14 +181,14 @@ static void continue_after_commit(struct batcher *b, struct continuation *k)
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*/
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static void issue_after_commit(struct batcher *b, struct bio *bio)
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{
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bool commit_scheduled;
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bool commit_scheduled;
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spin_lock_irq(&b->lock);
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commit_scheduled = b->commit_scheduled;
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bio_list_add(&b->bios, bio);
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spin_unlock_irq(&b->lock);
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spin_lock_irq(&b->lock);
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commit_scheduled = b->commit_scheduled;
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bio_list_add(&b->bios, bio);
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spin_unlock_irq(&b->lock);
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if (commit_scheduled)
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if (commit_scheduled)
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async_commit(b);
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}
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@ -242,7 +242,7 @@ static void __ebs_process_bios(struct work_struct *ws)
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* <offset>: offset in 512 bytes sectors into <dev_path>
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* <ebs>: emulated block size in units of 512 bytes exposed to the upper layer
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* [<ubs>]: underlying block size in units of 512 bytes imposed on the lower layer;
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* optional, if not supplied, retrieve logical block size from underlying device
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* optional, if not supplied, retrieve logical block size from underlying device
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*/
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static int ebs_ctr(struct dm_target *ti, unsigned int argc, char **argv)
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{
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@ -44,36 +44,36 @@ struct dm_exception_store_type {
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const char *name;
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struct module *module;
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int (*ctr) (struct dm_exception_store *store, char *options);
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int (*ctr)(struct dm_exception_store *store, char *options);
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/*
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* Destroys this object when you've finished with it.
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*/
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void (*dtr) (struct dm_exception_store *store);
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void (*dtr)(struct dm_exception_store *store);
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/*
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* The target shouldn't read the COW device until this is
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* called. As exceptions are read from the COW, they are
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* reported back via the callback.
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*/
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int (*read_metadata) (struct dm_exception_store *store,
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int (*callback)(void *callback_context,
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chunk_t old, chunk_t new),
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void *callback_context);
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int (*read_metadata)(struct dm_exception_store *store,
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int (*callback)(void *callback_context,
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chunk_t old, chunk_t new),
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void *callback_context);
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/*
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* Find somewhere to store the next exception.
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*/
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int (*prepare_exception) (struct dm_exception_store *store,
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struct dm_exception *e);
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int (*prepare_exception)(struct dm_exception_store *store,
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struct dm_exception *e);
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/*
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* Update the metadata with this exception.
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*/
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void (*commit_exception) (struct dm_exception_store *store,
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struct dm_exception *e, int valid,
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void (*callback) (void *, int success),
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void *callback_context);
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void (*commit_exception)(struct dm_exception_store *store,
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struct dm_exception *e, int valid,
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void (*callback)(void *, int success),
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void *callback_context);
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/*
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* Returns 0 if the exception store is empty.
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@ -83,30 +83,30 @@ struct dm_exception_store_type {
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* still-to-be-merged chunk and returns the number of
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* consecutive previous ones.
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*/
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int (*prepare_merge) (struct dm_exception_store *store,
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chunk_t *last_old_chunk, chunk_t *last_new_chunk);
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int (*prepare_merge)(struct dm_exception_store *store,
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chunk_t *last_old_chunk, chunk_t *last_new_chunk);
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/*
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* Clear the last n exceptions.
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* nr_merged must be <= the value returned by prepare_merge.
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*/
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int (*commit_merge) (struct dm_exception_store *store, int nr_merged);
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int (*commit_merge)(struct dm_exception_store *store, int nr_merged);
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/*
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* The snapshot is invalid, note this in the metadata.
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*/
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void (*drop_snapshot) (struct dm_exception_store *store);
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void (*drop_snapshot)(struct dm_exception_store *store);
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unsigned int (*status) (struct dm_exception_store *store,
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status_type_t status, char *result,
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unsigned int maxlen);
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unsigned int (*status)(struct dm_exception_store *store,
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status_type_t status, char *result,
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unsigned int maxlen);
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/*
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* Return how full the snapshot is.
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*/
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void (*usage) (struct dm_exception_store *store,
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sector_t *total_sectors, sector_t *sectors_allocated,
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sector_t *metadata_sectors);
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void (*usage)(struct dm_exception_store *store,
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sector_t *total_sectors, sector_t *sectors_allocated,
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sector_t *metadata_sectors);
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/* For internal device-mapper use only. */
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struct list_head list;
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@ -54,10 +54,10 @@ struct hash_cell {
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};
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struct vers_iter {
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size_t param_size;
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struct dm_target_versions *vers, *old_vers;
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char *end;
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uint32_t flags;
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size_t param_size;
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struct dm_target_versions *vers, *old_vers;
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char *end;
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uint32_t flags;
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};
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@ -661,36 +661,34 @@ static int list_devices(struct file *filp, struct dm_ioctl *param, size_t param_
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static void list_version_get_needed(struct target_type *tt, void *needed_param)
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{
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size_t *needed = needed_param;
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size_t *needed = needed_param;
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*needed += sizeof(struct dm_target_versions);
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*needed += strlen(tt->name) + 1;
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*needed += ALIGN_MASK;
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*needed += sizeof(struct dm_target_versions);
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*needed += strlen(tt->name) + 1;
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*needed += ALIGN_MASK;
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}
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static void list_version_get_info(struct target_type *tt, void *param)
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{
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struct vers_iter *info = param;
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struct vers_iter *info = param;
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/* Check space - it might have changed since the first iteration */
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if ((char *)info->vers + sizeof(tt->version) + strlen(tt->name) + 1 >
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info->end) {
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/* Check space - it might have changed since the first iteration */
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if ((char *)info->vers + sizeof(tt->version) + strlen(tt->name) + 1 > info->end) {
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info->flags = DM_BUFFER_FULL_FLAG;
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return;
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}
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info->flags = DM_BUFFER_FULL_FLAG;
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return;
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}
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if (info->old_vers)
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info->old_vers->next = (uint32_t) ((void *)info->vers - (void *)info->old_vers);
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if (info->old_vers)
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info->old_vers->next = (uint32_t) ((void *)info->vers -
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(void *)info->old_vers);
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info->vers->version[0] = tt->version[0];
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info->vers->version[1] = tt->version[1];
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info->vers->version[2] = tt->version[2];
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info->vers->next = 0;
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strcpy(info->vers->name, tt->name);
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info->vers->version[0] = tt->version[0];
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info->vers->version[1] = tt->version[1];
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info->vers->version[2] = tt->version[2];
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info->vers->next = 0;
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strcpy(info->vers->name, tt->name);
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info->old_vers = info->vers;
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info->vers = align_ptr((void *)(info->vers + 1) + strlen(tt->name) + 1);
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info->old_vers = info->vers;
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info->vers = align_ptr((void *)(info->vers + 1) + strlen(tt->name) + 1);
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}
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static int __list_versions(struct dm_ioctl *param, size_t param_size, const char *name)
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@ -2095,9 +2093,9 @@ static const struct file_operations _ctl_fops = {
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static struct miscdevice _dm_misc = {
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.minor = MAPPER_CTRL_MINOR,
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.name = DM_NAME,
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.name = DM_NAME,
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.nodename = DM_DIR "/" DM_CONTROL_NODE,
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.fops = &_ctl_fops
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.fops = &_ctl_fops
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};
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MODULE_ALIAS_MISCDEV(MAPPER_CTRL_MINOR);
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@ -608,7 +608,7 @@ static int run_pages_job(struct kcopyd_job *job)
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* of successful jobs.
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*/
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static int process_jobs(struct list_head *jobs, struct dm_kcopyd_client *kc,
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int (*fn) (struct kcopyd_job *))
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int (*fn)(struct kcopyd_job *))
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{
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struct kcopyd_job *job;
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int r, count = 0;
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@ -53,44 +53,43 @@ struct path_selector_type {
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/*
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* Constructs a path selector object, takes custom arguments
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*/
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int (*create) (struct path_selector *ps, unsigned int argc, char **argv);
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void (*destroy) (struct path_selector *ps);
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int (*create)(struct path_selector *ps, unsigned int argc, char **argv);
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void (*destroy)(struct path_selector *ps);
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/*
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* Add an opaque path object, along with some selector specific
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* path args (eg, path priority).
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*/
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int (*add_path) (struct path_selector *ps, struct dm_path *path,
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int argc, char **argv, char **error);
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int (*add_path)(struct path_selector *ps, struct dm_path *path,
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int argc, char **argv, char **error);
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/*
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* Chooses a path for this io, if no paths are available then
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* NULL will be returned.
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*/
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struct dm_path *(*select_path) (struct path_selector *ps,
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size_t nr_bytes);
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struct dm_path *(*select_path)(struct path_selector *ps, size_t nr_bytes);
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/*
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* Notify the selector that a path has failed.
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*/
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void (*fail_path) (struct path_selector *ps, struct dm_path *p);
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void (*fail_path)(struct path_selector *ps, struct dm_path *p);
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/*
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* Ask selector to reinstate a path.
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*/
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int (*reinstate_path) (struct path_selector *ps, struct dm_path *p);
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int (*reinstate_path)(struct path_selector *ps, struct dm_path *p);
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/*
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* Table content based on parameters added in ps_add_path_fn
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* or path selector status
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*/
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int (*status) (struct path_selector *ps, struct dm_path *path,
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status_type_t type, char *result, unsigned int maxlen);
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int (*status)(struct path_selector *ps, struct dm_path *path,
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status_type_t type, char *result, unsigned int maxlen);
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int (*start_io) (struct path_selector *ps, struct dm_path *path,
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size_t nr_bytes);
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int (*end_io) (struct path_selector *ps, struct dm_path *path,
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size_t nr_bytes, u64 start_time);
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int (*start_io)(struct path_selector *ps, struct dm_path *path,
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size_t nr_bytes);
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int (*end_io)(struct path_selector *ps, struct dm_path *path,
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size_t nr_bytes, u64 start_time);
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};
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/* Register a path selector */
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@ -123,8 +123,8 @@ static int ql_add_path(struct path_selector *ps, struct dm_path *path,
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/*
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* Arguments: [<repeat_count>]
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* <repeat_count>: The number of I/Os before switching path.
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* If not given, default (QL_MIN_IO) is used.
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* <repeat_count>: The number of I/Os before switching path.
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* If not given, default (QL_MIN_IO) is used.
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*/
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if (argc > 1) {
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*error = "queue-length ps: incorrect number of arguments";
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@ -121,11 +121,11 @@ static int st_add_path(struct path_selector *ps, struct dm_path *path,
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/*
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* Arguments: [<repeat_count> [<relative_throughput>]]
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* <repeat_count>: The number of I/Os before switching path.
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* If not given, default (ST_MIN_IO) is used.
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* <relative_throughput>: The relative throughput value of
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* <repeat_count>: The number of I/Os before switching path.
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* If not given, default (ST_MIN_IO) is used.
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* <relative_throughput>: The relative throughput value of
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* the path among all paths in the path-group.
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* The valid range: 0-<ST_MAX_RELATIVE_THROUGHPUT>
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* The valid range: 0-<ST_MAX_RELATIVE_THROUGHPUT>
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* If not given, minimum value '1' is used.
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* If '0' is given, the path isn't selected while
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* other paths having a positive value are available.
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@ -595,7 +595,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
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* We do different things with the write io depending on the
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* state of the region that it's in:
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*
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* SYNC: increment pending, use kcopyd to write to *all* mirrors
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* SYNC: increment pending, use kcopyd to write to *all* mirrors
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* RECOVERING: delay the io until recovery completes
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* NOSYNC: increment pending, just write to the default mirror
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*---------------------------------------------------------------------
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@ -695,7 +695,7 @@ static int persistent_prepare_exception(struct dm_exception_store *store,
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static void persistent_commit_exception(struct dm_exception_store *store,
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struct dm_exception *e, int valid,
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void (*callback) (void *, int success),
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void (*callback)(void *, int success),
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void *callback_context)
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{
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unsigned int i;
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@ -56,7 +56,7 @@ static int transient_prepare_exception(struct dm_exception_store *store,
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static void transient_commit_exception(struct dm_exception_store *store,
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struct dm_exception *e, int valid,
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void (*callback) (void *, int success),
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void (*callback)(void *, int success),
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void *callback_context)
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{
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/* Just succeed */
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@ -123,11 +123,11 @@ struct dm_snapshot {
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* The merge operation failed if this flag is set.
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* Failure modes are handled as follows:
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* - I/O error reading the header
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* => don't load the target; abort.
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* => don't load the target; abort.
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* - Header does not have "valid" flag set
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* => use the origin; forget about the snapshot.
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* => use the origin; forget about the snapshot.
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* - I/O error when reading exceptions
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* => don't load the target; abort.
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* => don't load the target; abort.
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* (We can't use the intermediate origin state.)
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* - I/O error while merging
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* => stop merging; set merge_failed; process I/O normally.
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@ -3,7 +3,7 @@
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* Device Mapper Uevent Support (dm-uevent)
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*
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* Copyright IBM Corporation, 2007
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* Author: Mike Anderson <andmike@linux.vnet.ibm.com>
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* Author: Mike Anderson <andmike@linux.vnet.ibm.com>
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*/
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#include <linux/list.h>
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#include <linux/slab.h>
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