From 6c3ea4f47ea280811a7fe53a22f7832e4533c9ec Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 26 Jun 2024 18:18:36 +0200
Subject: Adding upstream version 1:4.15.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 libmisc/btrfs.c | 110 --------------------------------------------------------
 1 file changed, 110 deletions(-)
 delete mode 100644 libmisc/btrfs.c

(limited to 'libmisc/btrfs.c')

diff --git a/libmisc/btrfs.c b/libmisc/btrfs.c
deleted file mode 100644
index a2563f7..0000000
--- a/libmisc/btrfs.c
+++ /dev/null
@@ -1,110 +0,0 @@
-#include <linux/btrfs_tree.h>
-#include <linux/magic.h>
-#include <sys/statfs.h>
-#include <stdbool.h>
-
-#include "prototypes.h"
-
-static bool path_exists(const char *p)
-{
-	struct stat sb;
-
-	return stat(p, &sb) == 0;
-}
-
-static const char *btrfs_cmd(void)
-{
-	const char *const btrfs_paths[] = {"/sbin/btrfs",
-		"/bin/btrfs", "/usr/sbin/btrfs", "/usr/bin/btrfs", NULL};
-	const char *p;
-	int i;
-
-	for (i = 0, p = btrfs_paths[i]; p; i++, p = btrfs_paths[i])
-		if (path_exists(p))
-			return p;
-
-	return NULL;
-}
-
-static int run_btrfs_subvolume_cmd(const char *subcmd, const char *arg1, const char *arg2)
-{
-	int status = 0;
-	const char *cmd = btrfs_cmd();
-	const char *argv[] = {
-		"btrfs",
-		"subvolume",
-		subcmd,
-		arg1,
-		arg2,
-		NULL
-	};
-
-	if (access(cmd, X_OK)) {
-		return 1;
-	}
-
-	if (run_command(cmd, argv, NULL, &status))
-		return -1;
-	return status;
-}
-
-
-int btrfs_create_subvolume(const char *path)
-{
-	return run_btrfs_subvolume_cmd("create", path, NULL);
-}
-
-
-int btrfs_remove_subvolume(const char *path)
-{
-	return run_btrfs_subvolume_cmd("delete", "-C", path);
-}
-
-
-/* Adapted from btrfsprogs */
-/*
- * This intentionally duplicates btrfs_util_is_subvolume_fd() instead of opening
- * a file descriptor and calling it, because fstat() and fstatfs() don't accept
- * file descriptors opened with O_PATH on old kernels (before v3.6 and before
- * v3.12, respectively), but stat() and statfs() can be called on a path that
- * the user doesn't have read or write permissions to.
- *
- * returns:
- *   1 - btrfs subvolume
- *   0 - not btrfs subvolume
- *  -1 - error
- */
-int btrfs_is_subvolume(const char *path)
-{
-	struct stat st;
-	int ret;
-
-	ret = is_btrfs(path);
-	if (ret <= 0)
-		return ret;
-
-	ret = stat(path, &st);
-	if (ret == -1)
-		return -1;
-
-	if (st.st_ino != BTRFS_FIRST_FREE_OBJECTID || !S_ISDIR(st.st_mode)) {
-		return 0;
-	}
-
-	return 1;
-}
-
-
-/* Adapted from btrfsprogs */
-int is_btrfs(const char *path)
-{
-	struct statfs sfs;
-	int ret;
-
-	ret = statfs(path, &sfs);
-	if (ret == -1)
-		return -1;
-
-	return sfs.f_type == BTRFS_SUPER_MAGIC;
-}
-
-- 
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