diff options
Diffstat (limited to 'kernel/acct.c')
| -rw-r--r-- | kernel/acct.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/acct.c b/kernel/acct.c index b9bd7f098ee5..8d6e145138bb 100644 --- a/kernel/acct.c +++ b/kernel/acct.c @@ -540,6 +540,12 @@ static void do_acct_process(struct bsd_acct_struct *acct, ac.ac_swaps = encode_comp_t(0); /* + * Get freeze protection. If the fs is frozen, just skip the write + * as we could deadlock the system otherwise. + */ + if (!file_start_write_trylock(file)) + goto out; + /* * Kernel segment override to datasegment and write it * to the accounting file. */ @@ -554,6 +560,7 @@ static void do_acct_process(struct bsd_acct_struct *acct, sizeof(acct_t), &file->f_pos); current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim; set_fs(fs); + file_end_write(file); out: revert_creds(orig_cred); } |