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kernel/acct.c: fix coding style warnings and errors 

Signed-off-by: Ionut Alexa <ionut.m.alexa@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Ionut Alexa 2014-07-31 09:28:36 +10:00 committed by Al Viro
parent 3064c3563b
commit 2577d92ebd
1 changed files with 16 additions and 12 deletions
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28
kernel/acct.c
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@ -108,14 +108,14 @@ static int check_free_space(struct bsd_acct_struct *acct)
do_div(suspend, 100); do_div(suspend, 100);
if (sbuf.f_bavail <= suspend) { if (sbuf.f_bavail <= suspend) {
acct->active = 0; acct->active = 0;
printk(KERN_INFO "Process accounting paused\n"); pr_info("Process accounting paused\n");
} }
} else { } else {
u64 resume = sbuf.f_blocks * RESUME; u64 resume = sbuf.f_blocks * RESUME;
do_div(resume, 100); do_div(resume, 100);
if (sbuf.f_bavail >= resume) { if (sbuf.f_bavail >= resume) {
acct->active = 1; acct->active = 1;
printk(KERN_INFO "Process accounting resumed\n"); pr_info("Process accounting resumed\n");
} }
} }
@ -280,6 +280,7 @@ SYSCALL_DEFINE1(acct, const char __user *, name)
if (name) { if (name) {
struct filename *tmp = getname(name); struct filename *tmp = getname(name);
if (IS_ERR(tmp)) if (IS_ERR(tmp))
return PTR_ERR(tmp); return PTR_ERR(tmp);
mutex_lock(&acct_on_mutex); mutex_lock(&acct_on_mutex);
@ -337,7 +338,7 @@ static comp_t encode_comp_t(unsigned long value)
return exp; return exp;
} }
#if ACCT_VERSION==1 || ACCT_VERSION==2 #if ACCT_VERSION == 1 || ACCT_VERSION == 2
/* /*
* encode an u64 into a comp2_t (24 bits) * encode an u64 into a comp2_t (24 bits)
* *
@ -350,7 +351,7 @@ static comp_t encode_comp_t(unsigned long value)
#define MANTSIZE2 20 /* 20 bit mantissa. */ #define MANTSIZE2 20 /* 20 bit mantissa. */
#define EXPSIZE2 5 /* 5 bit base 2 exponent. */ #define EXPSIZE2 5 /* 5 bit base 2 exponent. */
#define MAXFRACT2 ((1ul << MANTSIZE2) - 1) /* Maximum fractional value. */ #define MAXFRACT2 ((1ul << MANTSIZE2) - 1) /* Maximum fractional value. */
#define MAXEXP2 ((1 <<EXPSIZE2) - 1) /* Maximum exponent. */ #define MAXEXP2 ((1 << EXPSIZE2) - 1) /* Maximum exponent. */
static comp2_t encode_comp2_t(u64 value) static comp2_t encode_comp2_t(u64 value)
{ {
@ -381,7 +382,7 @@ static comp2_t encode_comp2_t(u64 value)
} }
#endif #endif
#if ACCT_VERSION==3 #if ACCT_VERSION == 3
/* /*
* encode an u64 into a 32 bit IEEE float * encode an u64 into a 32 bit IEEE float
*/ */
@ -390,8 +391,9 @@ static u32 encode_float(u64 value)
unsigned exp = 190; unsigned exp = 190;
unsigned u; unsigned u;
if (value==0) return 0; if (value == 0)
while ((s64)value > 0){ return 0;
while ((s64)value > 0) {
value <<= 1; value <<= 1;
exp--; exp--;
} }
@ -429,16 +431,17 @@ static void fill_ac(acct_t *ac)
run_time -= current->group_leader->start_time; run_time -= current->group_leader->start_time;
/* convert nsec -> AHZ */ /* convert nsec -> AHZ */
elapsed = nsec_to_AHZ(run_time); elapsed = nsec_to_AHZ(run_time);
#if ACCT_VERSION==3 #if ACCT_VERSION == 3
ac->ac_etime = encode_float(elapsed); ac->ac_etime = encode_float(elapsed);
#else #else
ac->ac_etime = encode_comp_t(elapsed < (unsigned long) -1l ? ac->ac_etime = encode_comp_t(elapsed < (unsigned long) -1l ?
(unsigned long) elapsed : (unsigned long) -1l); (unsigned long) elapsed : (unsigned long) -1l);
#endif #endif
#if ACCT_VERSION==1 || ACCT_VERSION==2 #if ACCT_VERSION == 1 || ACCT_VERSION == 2
{ {
/* new enlarged etime field */ /* new enlarged etime field */
comp2_t etime = encode_comp2_t(elapsed); comp2_t etime = encode_comp2_t(elapsed);
ac->ac_etime_hi = etime >> 16; ac->ac_etime_hi = etime >> 16;
ac->ac_etime_lo = (u16) etime; ac->ac_etime_lo = (u16) etime;
} }
@ -491,12 +494,12 @@ static void do_acct_process(struct bsd_acct_struct *acct)
/* we really need to bite the bullet and change layout */ /* we really need to bite the bullet and change layout */
ac.ac_uid = from_kuid_munged(file->f_cred->user_ns, orig_cred->uid); ac.ac_uid = from_kuid_munged(file->f_cred->user_ns, orig_cred->uid);
ac.ac_gid = from_kgid_munged(file->f_cred->user_ns, orig_cred->gid); ac.ac_gid = from_kgid_munged(file->f_cred->user_ns, orig_cred->gid);
#if ACCT_VERSION==1 || ACCT_VERSION==2 #if ACCT_VERSION == 1 || ACCT_VERSION == 2
/* backward-compatible 16 bit fields */ /* backward-compatible 16 bit fields */
ac.ac_uid16 = ac.ac_uid; ac.ac_uid16 = ac.ac_uid;
ac.ac_gid16 = ac.ac_gid; ac.ac_gid16 = ac.ac_gid;
#endif #endif
#if ACCT_VERSION==3 #if ACCT_VERSION == 3
ac.ac_pid = task_tgid_nr_ns(current, ns); ac.ac_pid = task_tgid_nr_ns(current, ns);
rcu_read_lock(); rcu_read_lock();
ac.ac_ppid = task_tgid_nr_ns(rcu_dereference(current->real_parent), ns); ac.ac_ppid = task_tgid_nr_ns(rcu_dereference(current->real_parent), ns);
@ -530,6 +533,7 @@ void acct_collect(long exitcode, int group_dead)
if (group_dead && current->mm) { if (group_dead && current->mm) {
struct vm_area_struct *vma; struct vm_area_struct *vma;
down_read(&current->mm->mmap_sem); down_read(&current->mm->mmap_sem);
vma = current->mm->mmap; vma = current->mm->mmap;
while (vma) { while (vma) {