| 1 | // SPDX-License-Identifier: GPL-2.0 |
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| 2 | /* |
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| 3 | * QNX6 file system, Linux implementation. |
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| 4 | * |
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| 5 | * Version : 1.0.0 |
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| 6 | * |
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| 7 | * History : |
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| 8 | * |
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| 9 | * 01-02-2012 by Kai Bankett (chaosman@ontika.net) : first release. |
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| 10 | * 16-02-2012 pagemap extension by Al Viro |
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| 11 | * |
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| 12 | */ |
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| 13 | |
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| 14 | #include "qnx6.h" |
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| 15 | |
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| 16 | struct dentry *qnx6_lookup(struct inode *dir, struct dentry *dentry, |
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| 17 | unsigned int flags) |
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| 18 | { |
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| 19 | unsigned ino; |
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| 20 | struct page *page; |
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| 21 | struct inode *foundinode = NULL; |
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| 22 | const char *name = dentry->d_name.name; |
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| 23 | int len = dentry->d_name.len; |
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| 24 | |
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| 25 | if (len > QNX6_LONG_NAME_MAX) |
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| 26 | return ERR_PTR(error: -ENAMETOOLONG); |
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| 27 | |
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| 28 | ino = qnx6_find_entry(len, dir, name, res_page: &page); |
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| 29 | if (ino) { |
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| 30 | foundinode = qnx6_iget(sb: dir->i_sb, ino); |
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| 31 | qnx6_put_page(page); |
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| 32 | if (IS_ERR(ptr: foundinode)) |
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| 33 | pr_debug("lookup->iget -> error %ld\n" , |
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| 34 | PTR_ERR(foundinode)); |
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| 35 | } else { |
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| 36 | pr_debug("%s(): not found %s\n" , __func__, name); |
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| 37 | } |
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| 38 | return d_splice_alias(foundinode, dentry); |
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| 39 | } |
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| 40 | |
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