/*
 *  linux/fs/affs/symlink.c
 *
 *  1995  Hans-Joachim Widmaier - Modified for affs.
 *
 *  Copyright (C) 1991, 1992  Linus Torvalds
 *
 *  affs symlink handling code
 */

#include "affs.h"

static int affs_symlink_readpage(struct file *file, struct page *page)
{
	struct buffer_head *bh;
	struct inode *inode = page->mapping->host;
	char *link = page_address(page);
	struct slink_front *lf;
	int			 i, j;
	char			 c;
	char			 lc;

	pr_debug("get_link(ino=%lu)\n", inode->i_ino);

	bh = affs_bread(inode->i_sb, inode->i_ino);
	if (!bh)
		goto fail;
	i  = 0;
	j  = 0;
	lf = (struct slink_front *)bh->b_data;
	lc = 0;

	if (strchr(lf->symname,':')) {	/* Handle assign or volume name */
		struct affs_sb_info *sbi = AFFS_SB(inode->i_sb);
		char *pf;
		spin_lock(&sbi->symlink_lock);
		pf = sbi->s_prefix ? sbi->s_prefix : "/";
		while (i < 1023 && (c = pf[i]))
			link[i++] = c;
		spin_unlock(&sbi->symlink_lock);
		while (i < 1023 && lf->symname[j] != ':')
			link[i++] = lf->symname[j++];
		if (i < 1023)
			link[i++] = '/';
		j++;
		lc = '/';
	}
	while (i < 1023 && (c = lf->symname[j])) {
		if (c == '/' && lc == '/' && i < 1020) {	/* parent dir */
			link[i++] = '.';
			link[i++] = '.';
		}
		link[i++] = c;
		lc = c;
		j++;
	}
	link[i] = '\0';
	affs_brelse(bh);
	SetPageUptodate(page);
	unlock_page(page);
	return 0;
fail:
	SetPageError(page);
	unlock_page(page);
	return -EIO;
}

const struct address_space_operations affs_symlink_aops = {
	.readpage	= affs_symlink_readpage,
};

const struct inode_operations affs_symlink_inode_operations = {
	.get_link	= page_get_link,
	.setattr	= affs_notify_change,
};
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=045169816b31b10faed984b01c390db1b32ee4c1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=045169816b31b10faed984b01c390db1b32ee4c1'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?id=045169816b31b10faed984b01c390db1b32ee4c1'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc2?id=045169816b31b10faed984b01c390db1b32ee4c1'>dwc2</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc2/hcd.c?id=045169816b31b10faed984b01c390db1b32ee4c1'>hcd.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='045169816b31b10faed984b01c390db1b32ee4c1'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-10 09:47:13 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-10 09:47:13 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc2/hcd.c?id=045169816b31b10faed984b01c390db1b32ee4c1'>045169816b31b10faed984b01c390db1b32ee4c1</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/dwc2/hcd.c?id=045169816b31b10faed984b01c390db1b32ee4c1'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=045169816b31b10faed984b01c390db1b32ee4c1'>ecb1d0c763f3d8cb0af749717b66ac47e6981d33</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/dwc2/hcd.c?id=045169816b31b10faed984b01c390db1b32ee4c1'>drivers/usb/dwc2/hcd.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc2/hcd.c?id=cd6628953e4216b65e7d91ab70ff8e5b65c9fde9'>cd6628953e4216b65e7d91ab70ff8e5b65c9fde9</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/dwc2/hcd.c?id=045169816b31b10faed984b01c390db1b32ee4c1&amp;id2=cd6628953e4216b65e7d91ab70ff8e5b65c9fde9'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc2/hcd.c?id=678b5c6b22fed89a13d5b2267f423069a9b11c80'>678b5c6b22fed89a13d5b2267f423069a9b11c80</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/dwc2/hcd.c?id=045169816b31b10faed984b01c390db1b32ee4c1&amp;id2=678b5c6b22fed89a13d5b2267f423069a9b11c80'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6</div><div class='commit-msg'>Pull crypto fixes from Herbert Xu:
 "This fixes the following issues:

   - Fix pointer size when caam is used with AArch64 boot loader on
     AArch32 kernel.

   - Fix ahash state corruption in marvell driver.

   - Fix buggy algif_aed tag handling.

   - Prevent mcryptd from being used with incompatible algorithms which
     can cause crashes"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: algif_aead - fix uninitialized variable warning
  crypto: mcryptd - Check mcryptd algorithm compatibility
  crypto: algif_aead - fix AEAD tag memory handling
  crypto: caam - fix pointer size for AArch64 boot loader, AArch32 kernel
  crypto: marvell - Don't corrupt state of an STD req for re-stepped ahash
  crypto: marvell - Don't copy hash operation twice into the SRAM
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=045169816b31b10faed984b01c390db1b32ee4c1'>Diffstat</a> (limited to 'drivers/usb/dwc2/hcd.c')</div><table summary='diffstat' class='diffstat'>