22840dea11
The stat.st_ino field must always be filled with the inode number given as part of the fdr_stat request anyway, so libfsdriver can simply fill in the number and allow the file system not to bother. Change-Id: Ia7a849d0b23dfc83010df0d48fa26e4225427694
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/* Created (MFS based):
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* February 2010 (Evgeniy Ivanov)
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*/
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#include "fs.h"
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/statvfs.h>
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#include "inode.h"
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#include "super.h"
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/*===========================================================================*
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* fs_stat *
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*===========================================================================*/
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int fs_stat(ino_t ino_nr, struct stat *statbuf)
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{
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struct inode *rip;
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mode_t mo;
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int s;
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if ((rip = get_inode(fs_dev, ino_nr)) == NULL)
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return(EINVAL);
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/* Update the atime, ctime, and mtime fields in the inode, if need be. */
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if (rip->i_update) update_times(rip);
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/* Fill in the statbuf struct. */
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mo = rip->i_mode & I_TYPE;
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/* true iff special */
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s = (mo == I_CHAR_SPECIAL || mo == I_BLOCK_SPECIAL);
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statbuf->st_mode = rip->i_mode;
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statbuf->st_nlink = rip->i_links_count;
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statbuf->st_uid = rip->i_uid;
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statbuf->st_gid = rip->i_gid;
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statbuf->st_rdev = (s ? (dev_t)rip->i_block[0] : NO_DEV);
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statbuf->st_size = rip->i_size;
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statbuf->st_atime = rip->i_atime;
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statbuf->st_mtime = rip->i_mtime;
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statbuf->st_ctime = rip->i_ctime;
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statbuf->st_blksize = rip->i_sp->s_block_size;
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statbuf->st_blocks = rip->i_blocks;
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put_inode(rip); /* release the inode */
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return(OK);
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}
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/*===========================================================================*
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* fs_statvfs *
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*===========================================================================*/
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int fs_statvfs(struct statvfs *st)
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{
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struct super_block *sp;
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sp = get_super(fs_dev);
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st->f_flag = ST_NOTRUNC;
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st->f_bsize = sp->s_block_size;
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st->f_frsize = sp->s_block_size;
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st->f_iosize = sp->s_block_size;
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st->f_blocks = sp->s_blocks_count;
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st->f_bfree = sp->s_free_blocks_count;
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st->f_bavail = sp->s_free_blocks_count - sp->s_r_blocks_count;
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st->f_files = sp->s_inodes_count;
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st->f_ffree = sp->s_free_inodes_count;
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st->f_favail = sp->s_free_inodes_count;
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st->f_namemax = EXT2_NAME_MAX;
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return(OK);
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}
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/*===========================================================================*
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* blockstats *
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*===========================================================================*/
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void fs_blockstats(u64_t *blocks, u64_t *free, u64_t *used)
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{
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struct super_block *sp = get_super(fs_dev);
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*blocks = sp->s_blocks_count;
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*free = sp->s_free_blocks_count;
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*used = *blocks - *free;
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}
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