/*
 *  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,
};
inux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/tools/perf/pmu-events/jevents.c?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/tools/perf/pmu-events/jevents.c?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/jevents.c?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/pmu-events/jevents.c?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/tools/perf/pmu-events/jevents.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>perf</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>pmu-events</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/jevents.c?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>jevents.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'/><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'>2017-01-30 15:47:19 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-30 15:47:19 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/jevents.c?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/perf/pmu-events/jevents.c?id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>4078d3ae27d4ebb85bdcd4d84e9b9a4d059f22bb</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/perf/pmu-events/jevents.c?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>tools/perf/pmu-events/jevents.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/jevents.c?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>751321b3dd5040dc5be19bd23f985e80c914621a</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/pmu-events/jevents.c?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b&amp;id2=751321b3dd5040dc5be19bd23f985e80c914621a'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/jevents.c?h=nds-private-remove&amp;id=54791b276b4000b307339f269d3bf7db877d536f'>54791b276b4000b307339f269d3bf7db877d536f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/pmu-events/jevents.c?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b&amp;id2=54791b276b4000b307339f269d3bf7db877d536f'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc</div><div class='commit-msg'>Pull sparc fixes from David Miller:
 "Several small bug fixes and tidies, along with a fix for non-resumable
  memory errors triggered by userspace"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Handle PIO &amp; MEM non-resumable errors.
  sparc64: Zero pages on allocation for mondo and error queues.
  sparc: Fixed typo in sstate.c. Replaced panicing with panicking
  sparc: use symbolic names for tsb indexing
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>Diffstat</a> (limited to 'tools/perf/pmu-events/jevents.c')</div><table summary='diffstat' class='diffstat'>