/*
* 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,
};
mg/pistachio-internal-dac.c'>logtreecommitdiff
Merge tag 'docs-4.10' of git://git.lwn.net/linux
HEADmasterPull documentation update from Jonathan Corbet:
"These are the documentation changes for 4.10.
It's another busy cycle for the docs tree, as the sphinx conversion
continues. Highlights include:
- Further work on PDF output, which remains a bit of a pain but
should be more solid now.
- Five more DocBook template files converted to Sphinx. Only 27 to
go... Lots of plain-text files have also been converted and
integrated.
- Images in binary formats have been replaced with more
source-friendly versions.
- Various bits of organizational work, including the renaming of
various files discussed at the kernel summit.
- New documentation for the device_link mechanism.
... and, of course, lots of typo fixes and small updates"
* tag 'docs-4.10' of git://git.lwn.net/linux: (193 commits)
dma-buf: Extract dma-buf.rst
Update Documentation/00-INDEX
docs: 00-INDEX: document directories/files with no docs
docs: 00-INDEX: remove non-existing entries
docs: 00-INDEX: add missing entries for documentation files/dirs
docs: 00-INDEX: consolidate process/ and admin-guide/ description
scripts: add a script to check if Documentation/00-INDEX is sane
Docs: change sh -> awk in REPORTING-BUGS
Documentation/core-api/device_link: Add initial documentation
core-api: remove an unexpected unident
ppc/idle: Add documentation for powersave=off
Doc: Correct typo, "Introdution" => "Introduction"
Documentation/atomic_ops.txt: convert to ReST markup
Documentation/local_ops.txt: convert to ReST markup
Documentation/assoc_array.txt: convert to ReST markup
docs-rst: parse-headers.pl: cleanup the documentation
docs-rst: fix media cleandocs target
docs-rst: media/Makefile: reorganize the rules
docs-rst: media: build SVG from graphviz files
docs-rst: replace bayer.png by a SVG image
...