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https://github.com/kdave/btrfs-progs
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ed89c67132
Clang 19 reports:
In file included from common/fsfeatures.c:34:
./common/tree-search.h:11:2: warning: field '' with variable sized type
'union btrfs_tree_search_args::(anonymous at
./common/tree-search.h:11:2)' not at the end of a struct or class is a
GNU extension [-Wgnu-variable-sized-type-not-at-end]
which is correct. This does not still fix the problem with tree search
v2, disabled in d73e698248 ("btrfs-progs: temporarily disable usage
of v2 of search tree ioctl").
Signed-off-by: David Sterba <dsterba@suse.com>
35 lines
887 B
C
35 lines
887 B
C
#ifndef __COMMON_TREE_SEARCH_H__
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#define __COMMON_TREE_SEARCH_H__
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#include "kerncompat.h"
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#include <stdbool.h>
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#include "kernel-shared/uapi/btrfs.h"
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#define BTRFS_TREE_SEARCH_V2_BUF_SIZE 65536
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struct btrfs_tree_search_args {
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bool use_v2;
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union {
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struct btrfs_ioctl_search_args args1;
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struct btrfs_ioctl_search_args_v2 args2;
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u8 filler[sizeof(struct btrfs_ioctl_search_args_v2) +
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BTRFS_TREE_SEARCH_V2_BUF_SIZE];
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};
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};
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int btrfs_tree_search_ioctl(int fd, struct btrfs_tree_search_args *sa);
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static inline struct btrfs_ioctl_search_key *btrfs_tree_search_sk(struct btrfs_tree_search_args *sa)
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{
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/* Same offset for v1 and v2. */
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return &sa->args1.key;
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}
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static inline void *btrfs_tree_search_data(struct btrfs_tree_search_args *sa, unsigned long offset) {
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if (sa->use_v2)
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return (void *)(sa->args2.buf + offset);
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return (void *)(sa->args1.buf + offset);
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}
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#endif
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