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HFS+: fix unlink of links

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Some time ago while attempting to handle invalid link counts, I botched
the unlink of links itself, so this patch fixes this now correctly, so
that only the link count of nodes that don't point to links is ignored.
Thanks to Vlado Plaga <rechner@vlado-do.de> to notify me of this
problem.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Roman Zippel 2008-04-09 17:44:07 +02:00 committed by Linus Torvalds
parent f4be31ec96
commit 76b0c26af2
1 changed files with 16 additions and 9 deletions
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25
fs/hfsplus/dir.c
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@ -340,16 +340,23 @@ static int hfsplus_unlink(struct inode *dir, struct dentry *dentry)
if (inode->i_nlink > 0)
drop_nlink(inode);
hfsplus_delete_inode(inode);
if (inode->i_ino != cnid && !inode->i_nlink) {
if (!atomic_read(&HFSPLUS_I(inode).opencnt)) {
res = hfsplus_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
if (!res)
hfsplus_delete_inode(inode);
} else
inode->i_flags |= S_DEAD;
} else
if (inode->i_ino == cnid)
clear_nlink(inode);
if (!inode->i_nlink) {
if (inode->i_ino != cnid) {
HFSPLUS_SB(sb).file_count--;
if (!atomic_read(&HFSPLUS_I(inode).opencnt)) {
res = hfsplus_delete_cat(inode->i_ino,
HFSPLUS_SB(sb).hidden_dir,
NULL);
if (!res)
hfsplus_delete_inode(inode);
} else
inode->i_flags |= S_DEAD;
} else
hfsplus_delete_inode(inode);
} else
HFSPLUS_SB(sb).file_count--;
inode->i_ctime = CURRENT_TIME_SEC;
mark_inode_dirty(inode);