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untangle fsnotify_d_instantiate() a bit

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First of all, don't bother calling it if inode is NULL -
that makes inode argument unused.  Moreover, do it *before*
dropping ->d_lock, not right after that (and don't bother
grabbing ->d_lock in it, of course).

Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2016-03-09 17:58:49 -05:00
commit 27f203f655
3 changed files with 4 additions and 17 deletions
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3
fs/dcache.c
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@ -1750,8 +1750,9 @@ static void __d_instantiate(struct dentry *dentry, struct inode *inode)
raw_write_seqcount_begin(&dentry->d_seq);
__d_set_inode_and_type(dentry, inode, add_flags);
raw_write_seqcount_end(&dentry->d_seq);
if (inode)
__fsnotify_d_instantiate(dentry);
spin_unlock(&dentry->d_lock);
fsnotify_d_instantiate(dentry, inode);
}
/**