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tmpfs: add VOP_STAT handler

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This commit is contained in:
Mateusz Guzik 2020-08-07 23:07:47 +00:00
parent 51ea7bea91
commit 9a14439f2f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=364045
2 changed files with 50 additions and 0 deletions
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49
sys/fs/tmpfs/tmpfs_vnops.c
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@ -56,6 +56,8 @@ __FBSDID("$FreeBSD$");
#include <sys/unistd.h>
#include <sys/vnode.h>
#include <sys/smr.h>
#include <security/audit/audit.h>
#include <security/mac/mac_framework.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
@ -405,6 +407,52 @@ tmpfs_access(struct vop_access_args *v)
return error;
}
int
tmpfs_stat(struct vop_stat_args *v)
{
struct vnode *vp = v->a_vp;
struct stat *sb = v->a_sb;
vm_object_t obj;
struct tmpfs_node *node;
int error;
node = VP_TO_TMPFS_NODE(vp);
tmpfs_update_getattr(vp);
error = vop_stat_helper_pre(v);
if (__predict_false(error))
return (error);
sb->st_dev = vp->v_mount->mnt_stat.f_fsid.val[0];
sb->st_ino = node->tn_id;
sb->st_mode = node->tn_mode | VTTOIF(vp->v_type);
sb->st_nlink = node->tn_links;
sb->st_uid = node->tn_uid;
sb->st_gid = node->tn_gid;
sb->st_rdev = (vp->v_type == VBLK || vp->v_type == VCHR) ?
node->tn_rdev : NODEV;
sb->st_size = node->tn_size;
sb->st_atim.tv_sec = node->tn_atime.tv_sec;
sb->st_atim.tv_nsec = node->tn_atime.tv_nsec;
sb->st_mtim.tv_sec = node->tn_mtime.tv_sec;
sb->st_mtim.tv_nsec = node->tn_mtime.tv_nsec;
sb->st_ctim.tv_sec = node->tn_ctime.tv_sec;
sb->st_ctim.tv_nsec = node->tn_ctime.tv_nsec;
sb->st_birthtim.tv_sec = node->tn_birthtime.tv_sec;
sb->st_birthtim.tv_nsec = node->tn_birthtime.tv_nsec;
sb->st_blksize = PAGE_SIZE;
sb->st_flags = node->tn_flags;
sb->st_gen = node->tn_gen;
if (vp->v_type == VREG) {
obj = node->tn_reg.tn_aobj;
sb->st_blocks = (u_quad_t)obj->resident_page_count * PAGE_SIZE;
} else
sb->st_blocks = node->tn_size;
sb->st_blocks /= S_BLKSIZE;
return (vop_stat_helper_post(v, error));
}
int
tmpfs_getattr(struct vop_getattr_args *v)
{
@ -1675,6 +1723,7 @@ struct vop_vector tmpfs_vnodeop_entries = {
.vop_close = tmpfs_close,
.vop_fplookup_vexec = tmpfs_fplookup_vexec,
.vop_access = tmpfs_access,
.vop_stat = tmpfs_stat,
.vop_getattr = tmpfs_getattr,
.vop_setattr = tmpfs_setattr,
.vop_read = tmpfs_read,

1
sys/fs/tmpfs/tmpfs_vnops.h
View File

@ -50,6 +50,7 @@ extern struct vop_vector tmpfs_vnodeop_nonc_entries;
vop_access_t tmpfs_access;
vop_fplookup_vexec_t tmpfs_fplookup_vexec;
vop_stat_t tmpfs_stat;
vop_getattr_t tmpfs_getattr;
vop_setattr_t tmpfs_setattr;
vop_pathconf_t tmpfs_pathconf;