/* * 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, }; t/?h=nds-private-remove'>summaryrefslogtreecommitdiff
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 19:03:21 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 20:22:18 +0100
commitaaaec6fc755447a1d056765b11b24d8ff2b81366 (patch)
treea7f4167960ee1df86739905b6ccdeb95465bfe5f /net/batman-adv/gateway_common.h
parent08d85f3ea99f1eeafc4e8507936190e86a16ee8c (diff)
x86/irq: Make irq activate operations symmetric
The recent commit which prevents double activation of interrupts unearthed interesting code in x86. The code (ab)uses irq_domain_activate_irq() to reconfigure an already activated interrupt. That trips over the prevention code now. Fix it by deactivating the interrupt before activating the new configuration. Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once" Reported-and-tested-by: Mike Galbraith <efault@gmx.de> Reported-and-tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos
Diffstat (limited to 'net/batman-adv/gateway_common.h')