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| author | Konstantin Belousov <kib@FreeBSD.org> | 2022-10-20 14:30:00 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2022-12-09 12:15:37 +0000 |
| commit | 83aff0f08c525ea3c394f3dd6598665cd369d53c (patch) | |
| tree | 85260671e72554c5f5c12f6c9d1f71d4a0840609 | |
| parent | e77f2f9dc683bb5ac725c5844fc36c831138e841 (diff) | |
| download | src-83aff0f08c525ea3c394f3dd6598665cd369d53c.tar.gz src-83aff0f08c525ea3c394f3dd6598665cd369d53c.zip | |
Add 'show tmpfs' ddb command
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D37097
| -rw-r--r-- | sys/fs/tmpfs/tmpfs_vfsops.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sys/fs/tmpfs/tmpfs_vfsops.c b/sys/fs/tmpfs/tmpfs_vfsops.c index 7bd44decd830..51a16ae6f5cf 100644 --- a/sys/fs/tmpfs/tmpfs_vfsops.c +++ b/sys/fs/tmpfs/tmpfs_vfsops.c @@ -43,6 +43,7 @@ * allocate and release resources. */ +#include "opt_ddb.h" #include "opt_tmpfs.h" #include <sys/cdefs.h> @@ -696,3 +697,44 @@ struct vfsops tmpfs_vfsops = { .vfs_uninit = tmpfs_uninit, }; VFS_SET(tmpfs_vfsops, tmpfs, VFCF_JAIL); + +#ifdef DDB +#include <ddb/ddb.h> + +static void +db_print_tmpfs(struct mount *mp, struct tmpfs_mount *tmp) +{ + db_printf("mp %p (%s) tmp %p\n", mp, + mp->mnt_stat.f_mntonname, tmp); + db_printf( + "\tsize max %ju pages max %lu pages used %lu\n" + "\tinodes max %ju inodes inuse %ju refcount %ju\n" + "\tmaxfilesize %ju r%c %snamecache %smtime\n", + (uintmax_t)tmp->tm_size_max, tmp->tm_pages_max, tmp->tm_pages_used, + (uintmax_t)tmp->tm_nodes_max, (uintmax_t)tmp->tm_nodes_inuse, + (uintmax_t)tmp->tm_refcount, (uintmax_t)tmp->tm_maxfilesize, + tmp->tm_ronly ? 'o' : 'w', tmp->tm_nonc ? "no" : "", + tmp->tm_nomtime ? "no" : ""); +} + +DB_SHOW_COMMAND(tmpfs, db_show_tmpfs) +{ + struct mount *mp; + struct tmpfs_mount *tmp; + + if (have_addr) { + mp = (struct mount *)addr; + tmp = VFS_TO_TMPFS(mp); + db_print_tmpfs(mp, tmp); + return; + } + + TAILQ_FOREACH(mp, &mountlist, mnt_list) { + if (strcmp(mp->mnt_stat.f_fstypename, tmpfs_vfsconf.vfc_name) == + 0) { + tmp = VFS_TO_TMPFS(mp); + db_print_tmpfs(mp, tmp); + } + } +} +#endif /* DDB */ |