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Code Issues Releases Wiki Activity

locks: Parse lock type earlier

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Same reason as for previous patch.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Pavel Emelyanov
2014-09-02 17:04:11 +04:00
parent 0095b40a29
commit efac9ed8b3
3 changed files with 37 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
file-lock.c
View File

@@ -72,40 +72,10 @@ static int dump_one_file_lock(FileLockEntry *fle)
fle, PB_FILE_LOCK);
}
static int fill_flock_entry(FileLockEntry *fle, int fl_kind,
const char *fl_type, const char *fl_option)
static void fill_flock_entry(FileLockEntry *fle, int fl_kind, int fl_ltype)
{
fle->flag |= fl_kind;
if (!strcmp(fl_type, "MSNFS")) {
fle->type |= LOCK_MAND;
if (!strcmp(fl_option, "READ")) {
fle->type |= LOCK_READ;
} else if (!strcmp(fl_option, "RW")) {
fle->type |= LOCK_RW;
} else if (!strcmp(fl_option, "WRITE")) {
fle->type |= LOCK_WRITE;
} else {
pr_err("Unknown lock option!\n");
goto err;
}
} else {
if (!strcmp(fl_option, "UNLCK")) {
fle->type |= F_UNLCK;
} else if (!strcmp(fl_option, "WRITE")) {
fle->type |= F_WRLCK;
} else if (!strcmp(fl_option, "READ")) {
fle->type |= F_RDLCK;
} else {
pr_err("Unknown lock option!\n");
goto err;
}
}
return 0;
err:
return -1;
fle->type = fl_ltype;
}
static int get_fd_by_ino(unsigned long i_no, struct parasite_drain_fd *dfds,
@@ -143,19 +113,14 @@ int dump_task_file_locks(struct parasite_ctl *ctl,
list_for_each_entry(fl, &file_lock_list, list) {
if (fl->fl_owner != pid)
continue;
pr_info("lockinfo: %lld:%d %s %s %d %02x:%02x:%ld %lld %s\n",
fl->fl_id, fl->fl_kind, fl->fl_type, fl->fl_option,
pr_info("lockinfo: %lld:%d %x %d %02x:%02x:%ld %lld %s\n",
fl->fl_id, fl->fl_kind, fl->fl_ltype,
fl->fl_owner, fl->maj, fl->min, fl->i_no,
fl->start, fl->end);
file_lock_entry__init(&fle);
fle.pid = ctl->pid.virt;
ret = fill_flock_entry(&fle, fl->fl_kind, fl->fl_type,
fl->fl_option);
if (ret)
goto err;
fill_flock_entry(&fle, fl->fl_kind, fl->fl_ltype);
fle.fd = get_fd_by_ino(fl->i_no, dfds, pid);
if (fle.fd < 0) {
ret = -1;

3
include/file-lock.h
View File

@@ -32,8 +32,7 @@
struct file_lock {
long long fl_id;
int fl_kind;
char fl_type[15];
char fl_option[10];
int fl_ltype;
pid_t fl_owner;
int maj, min;

36
proc_parse.c
View File

@@ -1415,16 +1415,16 @@ static int parse_file_lock_buf(char *buf, struct file_lock *fl,
bool is_blocked)
{
int num;
char fl_flag[10];
char fl_flag[10], fl_type[15], fl_option[10];
if (is_blocked) {
num = sscanf(buf, "%lld: -> %s %s %s %d %x:%x:%ld %lld %s",
&fl->fl_id, fl_flag, fl->fl_type, fl->fl_option,
&fl->fl_id, fl_flag, fl_type, fl_option,
&fl->fl_owner, &fl->maj, &fl->min, &fl->i_no,
&fl->start, fl->end);
} else {
num = sscanf(buf, "%lld:%s %s %s %d %x:%x:%ld %lld %s",
&fl->fl_id, fl_flag, fl->fl_type, fl->fl_option,
&fl->fl_id, fl_flag, fl_type, fl_option,
&fl->fl_owner, &fl->maj, &fl->min, &fl->i_no,
&fl->start, fl->end);
}
@@ -1441,6 +1441,32 @@ static int parse_file_lock_buf(char *buf, struct file_lock *fl,
else
fl->fl_kind = FL_UNKNOWN;
if (!strcmp(fl_type, "MSNFS")) {
fl->fl_ltype |= LOCK_MAND;
if (!strcmp(fl_option, "READ")) {
fl->fl_ltype |= LOCK_READ;
} else if (!strcmp(fl_option, "RW")) {
fl->fl_ltype |= LOCK_RW;
} else if (!strcmp(fl_option, "WRITE")) {
fl->fl_ltype |= LOCK_WRITE;
} else {
pr_err("Unknown lock option!\n");
return -1;
}
} else {
if (!strcmp(fl_option, "UNLCK")) {
fl->fl_ltype |= F_UNLCK;
} else if (!strcmp(fl_option, "WRITE")) {
fl->fl_ltype |= F_WRLCK;
} else if (!strcmp(fl_option, "READ")) {
fl->fl_ltype |= F_RDLCK;
} else {
pr_err("Unknown lock option!\n");
return -1;
}
}
return 0;
}
@@ -1506,8 +1532,8 @@ int parse_file_locks(void)
goto err;
}
pr_info("lockinfo: %lld:%d %s %s %d %02x:%02x:%ld %lld %s\n",
fl->fl_id, fl->fl_kind, fl->fl_type, fl->fl_option,
pr_info("lockinfo: %lld:%d %x %d %02x:%02x:%ld %lld %s\n",
fl->fl_id, fl->fl_kind, fl->fl_ltype,
fl->fl_owner, fl->maj, fl->min, fl->i_no,
fl->start, fl->end);