forked from luck/tmp_suning_uos_patched
f5e54d6e53
Same as with already do with the file operations: keep them in .rodata and prevents people from doing runtime patching. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/*
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* Symlink inode operations for Coda filesystem
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* Original version: (C) 1996 P. Braam and M. Callahan
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* Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
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*
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* Carnegie Mellon encourages users to contribute improvements to
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* the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/time.h>
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#include <linux/fs.h>
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#include <linux/stat.h>
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#include <linux/errno.h>
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#include <linux/pagemap.h>
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#include <linux/smp_lock.h>
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#include <linux/coda.h>
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#include <linux/coda_linux.h>
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#include <linux/coda_psdev.h>
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#include <linux/coda_fs_i.h>
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#include <linux/coda_proc.h>
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static int coda_symlink_filler(struct file *file, struct page *page)
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{
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struct inode *inode = page->mapping->host;
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int error;
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struct coda_inode_info *cii;
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unsigned int len = PAGE_SIZE;
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char *p = kmap(page);
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lock_kernel();
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cii = ITOC(inode);
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coda_vfs_stat.follow_link++;
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error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len);
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unlock_kernel();
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if (error)
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goto fail;
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SetPageUptodate(page);
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kunmap(page);
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unlock_page(page);
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return 0;
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fail:
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SetPageError(page);
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kunmap(page);
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unlock_page(page);
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return error;
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}
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const struct address_space_operations coda_symlink_aops = {
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.readpage = coda_symlink_filler,
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};
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