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| 2 | |
| 3 | * Copyright (c) 2013
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| 4 | * Phillip Lougher <[email protected]>
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| 5 |
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| 6 |
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| 7 | #include <linux/fs.h>
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| 8 | #include <linux/vfs.h>
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| 9 | #include <linux/kernel.h>
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| 10 | #include <linux/slab.h>
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| 11 | #include <linux/string.h>
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| 12 | #include <linux/pagemap.h>
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| 13 | #include <linux/mutex.h>
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| 14 |
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| 15 | #include "squashfs_fs.h"
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| 16 | #include "squashfs_fs_sb.h"
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| 17 | #include "squashfs_fs_i.h"
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| 18 | #include "squashfs.h"
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| 19 |
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| 20 |
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| 21 | int squashfs_readpage_block(struct folio *folio, u64 block, int bsize, int expected)
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| 22 | {
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| 23 | struct inode *i = folio->mapping->host;
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| 24 | struct squashfs_cache_entry *buffer = squashfs_get_datablock(i->i_sb,
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| 25 | block, bsize);
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| 26 | int res = buffer->error;
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| 27 |
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| 28 | if (res)
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| 29 | ERROR("Unable to read page, block %llx, size %x\n", block,
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| 30 | bsize);
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| 31 | else
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| 32 | squashfs_copy_cache(folio, buffer, expected, 0);
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| 33 |
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| 34 | squashfs_cache_put(buffer);
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| 35 | return res;
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| 36 | }
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