| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | * Squashfs - a compressed read only filesystem for Linux |
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| 4 | * |
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| 5 | * Copyright (c) 2010 |
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| 6 | * Phillip Lougher <phillip@squashfs.org.uk> |
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| 7 | * |
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| 8 | * xattr.h |
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| 9 | */ |
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| 10 | |
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| 11 | #ifdef CONFIG_SQUASHFS_XATTR |
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| 12 | extern __le64 *squashfs_read_xattr_id_table(struct super_block *, u64, |
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| 13 | u64 *, unsigned int *); |
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| 14 | extern int squashfs_xattr_lookup(struct super_block *, unsigned int, int *, |
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| 15 | unsigned int *, unsigned long long *); |
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| 16 | #else |
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| 17 | static inline __le64 *squashfs_read_xattr_id_table(struct super_block *sb, |
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| 18 | u64 start, u64 *xattr_table_start, unsigned int *xattr_ids) |
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| 19 | { |
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| 20 | struct squashfs_xattr_id_table *id_table; |
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| 21 | |
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| 22 | id_table = squashfs_read_table(sb, start, sizeof(*id_table)); |
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| 23 | if (IS_ERR(id_table)) |
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| 24 | return (__le64 *) id_table; |
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| 25 | |
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| 26 | *xattr_table_start = le64_to_cpu(id_table->xattr_table_start); |
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| 27 | kfree(id_table); |
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| 28 | |
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| 29 | ERROR("Xattrs in filesystem, these will be ignored\n" ); |
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| 30 | return ERR_PTR(-ENOTSUPP); |
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| 31 | } |
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| 32 | |
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| 33 | static inline int squashfs_xattr_lookup(struct super_block *sb, |
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| 34 | unsigned int index, int *count, unsigned int *size, |
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| 35 | unsigned long long *xattr) |
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| 36 | { |
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| 37 | return 0; |
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| 38 | } |
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| 39 | #define squashfs_listxattr NULL |
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| 40 | #define squashfs_xattr_handlers NULL |
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| 41 | #endif |
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| 42 | |
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