C++ (Cpp) afs_root Examples

Example #1

struct super_block *
afs_read_super(struct super_block *sb, void *data, int silent)
{
    int code = 0;

    AFS_GLOCK();
    if (afs_was_mounted) {
	printf
	    ("You must reload the AFS kernel extensions before remounting AFS.\n");
	AFS_GUNLOCK();
	return NULL;
    }
    afs_was_mounted = 1;

    /* Set basics of super_block */
#if !defined(AFS_LINUX24_ENV)
    lock_super(sb);
#endif
    MOD_INC_USE_COUNT;

    afs_globalVFS = sb;
    sb->s_flags |= MS_NOATIME;
    sb->s_blocksize = 1024;
    sb->s_blocksize_bits = 10;
    sb->s_magic = AFS_VFSMAGIC;
    sb->s_op = &afs_sops;	/* Super block (vfs) ops */
#if defined(MAX_NON_LFS)
#ifdef AFS_64BIT_CLIENT
#if !defined(MAX_LFS_FILESIZE)
#if BITS_PER_LONG==32
#define MAX_LFS_FILESIZE (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1) 
#elif BITS_PER_LONG==64
#define MAX_LFS_FILESIZE 0x7fffffffffffffff
#endif
#endif
    sb->s_maxbytes = MAX_LFS_FILESIZE;
#else
    sb->s_maxbytes = MAX_NON_LFS;
#endif
#endif
    code = afs_root(sb);
    if (code) {
	afs_globalVFS = NULL;
        MOD_DEC_USE_COUNT;
    }

#if !defined(AFS_LINUX24_ENV)
    unlock_super(sb);
#endif

    AFS_GUNLOCK();
    return code ? NULL : sb;
}

Example #2

File: osi_vfsops.c Project: ysei/openafs

int
afs_fill_super(struct super_block *sb, void *data, int silent)
{
    int code = 0;
#if defined(HAVE_LINUX_BDI_INIT)
    int bdi_init_done = 0;
#endif

    AFS_GLOCK();
    if (afs_was_mounted) {
	printf
	    ("You must reload the AFS kernel extensions before remounting AFS.\n");
	AFS_GUNLOCK();
	return -EINVAL;
    }
    afs_was_mounted = 1;

    /* Set basics of super_block */
   __module_get(THIS_MODULE);

    afs_globalVFS = sb;
    sb->s_flags |= MS_NOATIME;
    sb->s_blocksize = 1024;
    sb->s_blocksize_bits = 10;
    sb->s_magic = AFS_VFSMAGIC;
    sb->s_op = &afs_sops;	/* Super block (vfs) ops */

#if defined(STRUCT_SUPER_BLOCK_HAS_S_D_OP)
    sb->s_d_op = &afs_dentry_operations;
#endif

    /* used for inodes backing_dev_info field, also */
    afs_backing_dev_info = kzalloc(sizeof(struct backing_dev_info), GFP_NOFS);
#if defined(HAVE_LINUX_BDI_INIT)
    code = bdi_init(afs_backing_dev_info);
    if (code)
	goto out;
    bdi_init_done = 1;
#endif
#if defined(STRUCT_BACKING_DEV_INFO_HAS_NAME)
    afs_backing_dev_info->name = "openafs";
#endif
    afs_backing_dev_info->ra_pages = 32;
#if defined (STRUCT_SUPER_BLOCK_HAS_S_BDI)
    sb->s_bdi = afs_backing_dev_info;
    /* The name specified here will appear in the flushing thread name - flush-afs */
    bdi_register(afs_backing_dev_info, NULL, "afs");
#endif
#if !defined(AFS_NONFSTRANS)
    sb->s_export_op = &afs_export_ops;
#endif
#if defined(MAX_NON_LFS)
#ifdef AFS_64BIT_CLIENT
#if !defined(MAX_LFS_FILESIZE)
#if BITS_PER_LONG==32
#define MAX_LFS_FILESIZE (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1) 
#elif BITS_PER_LONG==64
#define MAX_LFS_FILESIZE 0x7fffffffffffffff
#endif
#endif
    sb->s_maxbytes = MAX_LFS_FILESIZE;
#else
    sb->s_maxbytes = MAX_NON_LFS;
#endif
#endif
    code = afs_root(sb);
out:
    if (code) {
	afs_globalVFS = NULL;
	afs_FlushAllVCaches();
#if defined(HAVE_LINUX_BDI_INIT)
	if (bdi_init_done)
	    bdi_destroy(afs_backing_dev_info);
#endif
	kfree(afs_backing_dev_info);
        module_put(THIS_MODULE);
    }

    AFS_GUNLOCK();
    return code ? -EINVAL : 0;
}