seq_hlist_next_percpu – move to the next position of the percpu hlist array Synopsis struct hlist_node *seq_hlist_next_percpu(void *v, struct hlist_head __percpu *head, int *cpu, loff_t *pos); Arguments v pointer to current hlist_node head pointer to percpu array of struct hlist_heads cpu pointer to cpu “cursor” pos start position of sequence Description Called at seq_file->op->next. Copyright
seq_hlist_next – move to the next position of the hlist Synopsis struct hlist_node *seq_hlist_next(void *v, struct hlist_head *head, loff_t *ppos); Arguments v the current iterator head the head of the hlist ppos the current position Description Called at seq_file->op->next. Copyright
seq_file_path – seq_file interface to print a pathname of a file Synopsis int seq_file_path(struct seq_file *m, struct file *file, const char *esc); Arguments m the seq_file handle file the struct file to print esc set of characters to escape in the output Description return the absolute path to the file. Copyright
seq_escape – print string into buffer, escaping some characters Synopsis void seq_escape(struct seq_file *m, const char *s, const char *esc); Arguments m target buffer s string esc set of characters that need escaping Description Puts string into buffer, replacing each occurrence of character from esc with usual octal escape. Use seq_has_overflowed to check for errors….
securityfs_remove – removes a file or directory from the securityfs filesystem Synopsis void securityfs_remove(struct dentry *dentry); Arguments dentry a pointer to a the dentry of the file or directory to be removed. Description This function removes a file or directory in securityfs that was previously created with a call to another securityfs function (like securityfs_create_file…
securityfs_create_file – create a file in the securityfs filesystem Synopsis struct dentry *securityfs_create_file(const char *name, umode_t mode, struct dentry *parent, void *data, const struct file_operations *fops); Arguments name a pointer to a string containing the name of the file to create. mode the permission that the file should have parent a pointer to the parent…
securityfs_create_dir – create a directory in the securityfs filesystem Synopsis struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); Arguments name a pointer to a string containing the name of the directory to create. parent a pointer to the parent dentry for this file. This should be a directory dentry if set. If this parameter is…
security_module_enable – Load given security module on boot ? Synopsis int security_module_enable(const char *module); Arguments module the name of the module Description Each LSM must pass this method before registering its own operations to avoid security registration races. This method may also be used to check if your LSM is currently loaded during kernel initialization….
security_init – initializes the security framework Synopsis int security_init(void); Arguments void no arguments Description This should be called early in the kernel initialization sequence. Copyright
search_read_bbts – [GENERIC] scan the device for bad block table(s) Synopsis void search_read_bbts(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md); Arguments mtd MTD device structure buf temporary buffer td descriptor for the bad block table md descriptor for the bad block table mirror Description Search and read the bad block table(s). Author…
search_bbt – [GENERIC] scan the device for a specific bad block table Synopsis int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td); Arguments mtd MTD device structure buf temporary buffer td descriptor for the bad block table Description Read the bad block table by searching for a given ident pattern. Search is preformed either from…
sdev_evt_send_simple – send asserted event to uevent thread Synopsis void sdev_evt_send_simple(struct scsi_device *sdev, enum scsi_device_event evt_type, gfp_t gfpflags); Arguments sdev scsi_device event occurred on evt_type type of event to send gfpflags GFP flags for allocation Description Assert scsi device event asynchronously, given an event type. Authors James Bottomley <James.Bottomley [at] hansenpartnership.com> Author. Rob Landley <rob…
sdev_evt_send – send asserted event to uevent thread Synopsis void sdev_evt_send(struct scsi_device *sdev, struct scsi_event *evt); Arguments sdev scsi_device event occurred on evt event to send Description Assert scsi device event asynchronously. Authors James Bottomley <James.Bottomley [at] hansenpartnership.com> Author. Rob Landley <rob [at] landley.net> Author. Copyright
sdev_evt_alloc – allocate a new scsi event Synopsis struct scsi_event *sdev_evt_alloc(enum scsi_device_event evt_type, gfp_t gfpflags); Arguments evt_type type of event to allocate gfpflags GFP flags for allocation Description Allocates and returns a new scsi_event. Authors James Bottomley <James.Bottomley [at] hansenpartnership.com> Author. Rob Landley <rob [at] landley.net> Author. Copyright
scsicam_bios_param – Determine geometry of a disk in cylinders/heads/sectors. Synopsis int scsicam_bios_param(struct block_device *bdev, sector_t capacity, int *ip); Arguments bdev which device capacity size of the disk in sectors ip return value: ip[0]=heads, ip[1]=sectors, ip[2]=cylinders Description determine the BIOS mapping/geometry used for a drive in a SCSI-CAM system, storing the results in ip as required…
scsi_vpd_lun_id – return a unique device identification Synopsis int scsi_vpd_lun_id(struct scsi_device *sdev, char *id, size_t id_len); Arguments sdev SCSI device id buffer for the identification id_len length of the buffer Description Copies a unique device identification into id based on the information in the VPD page 0x83 of the device. The string will be formatted…
scsi_unlock_floptical – unlock device via a special MODE SENSE command Synopsis void scsi_unlock_floptical(struct scsi_device *sdev, unsigned char *result); Arguments sdev scsi device to send command to result area to store the result of the MODE SENSE Description Send a vendor specific MODE SENSE (not a MODE SELECT) command. Called for BLIST_KEY devices. Authors James Bottomley…
scsi_track_queue_full – track QUEUE_FULL events to adjust queue depth Synopsis int scsi_track_queue_full(struct scsi_device *sdev, int depth); Arguments sdev SCSI Device in question depth Current number of outstanding SCSI commands on this device, not counting the one returned as QUEUE_FULL. Description This function will track successive QUEUE_FULL events on a specific SCSI device to determine if…
scsi_test_unit_ready – test if unit is ready Synopsis int scsi_test_unit_ready(struct scsi_device *sdev, int timeout, int retries, struct scsi_sense_hdr *sshdr_external); Arguments sdev scsi device to change the state of. timeout command timeout retries number of retries before failing sshdr_external Optional pointer to struct scsi_sense_hdr for returning sense. Make sure that this is cleared before passing in….
scsi_target_reap_ref_release – remove target from visibility Synopsis void scsi_target_reap_ref_release(struct kref *kref); Arguments kref the reap_ref in the target being released Description Called on last put of reap_ref, which is the indication that no device under this target is visible anymore, so render the target invisible in sysfs. Note: we have to be in user context…