AuxXxilium/linux_dsm_epyc7002
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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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Pull vfs fix from Al Viro:
 "Followup to procfs-seq_file series this window"

This fixes a memory leak by making sure that proc seq files release any
private data on close.  The 'proc_seq_open' has to be properly paired
with 'proc_seq_release' that releases the extra private data.

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  proc: add proc_seq_release
This commit is contained in:
Linus Torvalds 2018-07-01 12:32:19 -07:00
commit 4a770e638f
1 changed files with 10 additions and 1 deletions
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11
fs/proc/generic.c
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@ -564,11 +564,20 @@ static int proc_seq_open(struct inode *inode, struct file *file)
return seq_open(file, de->seq_ops);
}
static int proc_seq_release(struct inode *inode, struct file *file)
{
struct proc_dir_entry *de = PDE(inode);
if (de->state_size)
return seq_release_private(inode, file);
return seq_release(inode, file);
}
static const struct file_operations proc_seq_fops = {
.open = proc_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
.release = proc_seq_release,
};
struct proc_dir_entry *proc_create_seq_private(const char *name, umode_t mode,