bd851af48f
There is no reason to keep these tightly coupled data structures separate. Moreover, there is no reason to have a union of file descriptor and file pointer, since the second can be derived from the first. The result are somewhat cleaner VFS internals. Change-Id: I854da7d8291177878eecfc3077ef0a9e0cc82aaa
49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
#ifndef __VFS_GLO_H__
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#define __VFS_GLO_H__
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/* EXTERN should be extern except for the table file */
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#ifdef _TABLE
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#undef EXTERN
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#define EXTERN
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#endif
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#include <minix/param.h>
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/* File System global variables */
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EXTERN struct fproc *fp; /* pointer to caller's fproc struct */
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EXTERN int susp_count; /* number of procs suspended on pipe */
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EXTERN int nr_locks; /* number of locks currently in place */
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EXTERN int reviving; /* number of pipe processes to be revived */
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EXTERN int sending;
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EXTERN int verbose;
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EXTERN dev_t ROOT_DEV; /* device number of the root device */
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EXTERN int ROOT_FS_E; /* kernel endpoint of the root FS proc */
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EXTERN u32_t system_hz; /* system clock frequency. */
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/* The parameters of the call are kept here. */
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EXTERN message m_in; /* the input message itself */
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# define who_p ((int) (fp - fproc))
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# define fproc_addr(e) (&fproc[_ENDPOINT_P(e)])
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# define who_e (self != NULL ? fp->fp_endpoint : m_in.m_source)
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# define call_nr (m_in.m_type)
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# define job_m_in (self->w_m_in)
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# define job_m_out (self->w_m_out)
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# define job_call_nr (job_m_in.m_type)
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# define super_user (fp->fp_effuid == SU_UID ? 1 : 0)
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EXTERN struct worker_thread *self;
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EXTERN int deadlock_resolving;
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EXTERN mutex_t bsf_lock;/* Global lock for access to block special files */
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EXTERN struct worker_thread workers[NR_WTHREADS];
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EXTERN char mount_label[LABEL_MAX]; /* label of file system to mount */
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/* The following variables are used for returning results to the caller. */
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EXTERN int err_code; /* temporary storage for error number */
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/* Data initialized elsewhere. */
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extern int (* const call_vec[])(void);
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EXTERN struct kinfo kinfo; /* kernel information */
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#endif
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