#define DEBUG_SUBSYSTEM S_LLITE
#include <linux/version.h>
-#include <linux/lustre_lite.h>
-#include <linux/lprocfs_status.h>
+#include <lustre_lite.h>
+#include <lprocfs_status.h>
#include <linux/seq_file.h>
-#include <linux/obd_support.h>
+#include <obd_support.h>
#include "llite_internal.h"
-/* /proc/lustre/llite mount point registration */
struct proc_dir_entry *proc_lustre_fs_root;
-struct file_operations llite_dump_pgcache_fops;
-
-#ifndef LPROCFS
-int lprocfs_register_mountpoint(struct proc_dir_entry *parent,
- struct super_block *sb, char *osc, char *mdc)
-{
- return 0;
-}
-void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi){}
-#else
-long long mnt_instance;
+#ifdef LPROCFS
+/* /proc/lustre/llite mount point registration */
+struct file_operations llite_dump_pgcache_fops;
+struct file_operations ll_ra_stats_fops;
+struct file_operations ll_rw_extents_stats_fops;
+struct file_operations ll_rw_extents_stats_pp_fops;
+struct file_operations ll_rw_offset_stats_fops;
static int ll_rd_blksize(char *page, char **start, off_t off, int count,
int *eof, void *data)
int rc;
LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, jiffies - HZ);
+ rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ);
if (!rc) {
*eof = 1;
rc = snprintf(page, count, "%u\n", osfs.os_bsize);
int rc;
LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, jiffies - HZ);
+ rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ);
if (!rc) {
__u32 blk_size = osfs.os_bsize >> 10;
__u64 result = osfs.os_blocks;
int rc;
LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, jiffies - HZ);
+ rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ);
if (!rc) {
__u32 blk_size = osfs.os_bsize >> 10;
__u64 result = osfs.os_bfree;
int rc;
LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, jiffies - HZ);
+ rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ);
if (!rc) {
__u32 blk_size = osfs.os_bsize >> 10;
__u64 result = osfs.os_bavail;
int rc;
LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, jiffies - HZ);
+ rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ);
if (!rc) {
*eof = 1;
rc = snprintf(page, count, LPU64"\n", osfs.os_files);
int rc;
LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, jiffies - HZ);
+ rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ);
if (!rc) {
*eof = 1;
rc = snprintf(page, count, LPU64"\n", osfs.os_ffree);
}
+static int ll_rd_client_type(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)data);
+ int rc;
+
+ LASSERT(sbi != NULL);
+
+ *eof = 1;
+ if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
+ rc = snprintf(page, count, "remote client\n");
+ else
+ rc = snprintf(page, count, "local client\n");
+
+ return rc;
+}
+
static int ll_rd_fstype(char *page, char **start, off_t off, int count,
int *eof, void *data)
{
return snprintf(page, count, "%s\n", ll_s2sbi(sb)->ll_sb_uuid.uuid);
}
-static int ll_rd_read_ahead(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int ll_rd_max_readahead_mb(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
- struct super_block *sb = (struct super_block*)data;
+ struct super_block *sb = data;
struct ll_sb_info *sbi = ll_s2sbi(sb);
- int val, rc;
- ENTRY;
+ long pages_number;
+ int mult;
- *eof = 1;
- val = (sbi->ll_flags & LL_SBI_READAHEAD) ? 1 : 0;
- rc = snprintf(page, count, "%d\n", val);
- RETURN(rc);
+ spin_lock(&sbi->ll_lock);
+ pages_number = sbi->ll_ra_info.ra_max_pages;
+ spin_unlock(&sbi->ll_lock);
+
+ mult = 1 << (20 - PAGE_CACHE_SHIFT);
+ return lprocfs_read_frac_helper(page, count, pages_number, mult);
}
-static int ll_wr_read_ahead(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int ll_wr_max_readahead_mb(struct file *file, const char *buffer,
+ unsigned long count, void *data)
{
- struct super_block *sb = (struct super_block*)data;
+ struct super_block *sb = data;
struct ll_sb_info *sbi = ll_s2sbi(sb);
- int readahead;
- ENTRY;
+ int mult, rc, pages_number;
- if (1 != sscanf(buffer, "%d", &readahead))
- RETURN(-EINVAL);
+ mult = 1 << (20 - CFS_PAGE_SHIFT);
+ rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
+ if (rc)
+ return rc;
- if (readahead)
- sbi->ll_flags |= LL_SBI_READAHEAD;
- else
- sbi->ll_flags &= ~LL_SBI_READAHEAD;
+ if (pages_number < 0 || pages_number > num_physpages / 2) {
+ CERROR("can't set file readahead more than %lu MB\n",
+ num_physpages >> (20 - CFS_PAGE_SHIFT + 1)); /*1/2 of RAM*/
+ return -ERANGE;
+ }
- RETURN(count);
+ spin_lock(&sbi->ll_lock);
+ sbi->ll_ra_info.ra_max_pages = pages_number;
+ spin_unlock(&sbi->ll_lock);
+
+ return count;
}
-static int ll_wr_config_update(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int ll_rd_max_read_ahead_whole_mb(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
- struct super_block *sb = (struct super_block*)data;
+ struct super_block *sb = data;
struct ll_sb_info *sbi = ll_s2sbi(sb);
- ENTRY;
+ long pages_number;
+ int mult;
+
+ spin_lock(&sbi->ll_lock);
+ pages_number = sbi->ll_ra_info.ra_max_read_ahead_whole_pages;
+ spin_unlock(&sbi->ll_lock);
- CWARN("Starting a LOV/OST update !\n");
- RETURN(ll_process_config_update(sbi, 0));
+ mult = 1 << (20 - CFS_PAGE_SHIFT);
+ return lprocfs_read_frac_helper(page, count, pages_number, mult);
}
-static int ll_rd_max_read_ahead_mb(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int ll_wr_max_read_ahead_whole_mb(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct super_block *sb = data;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ int mult, rc, pages_number;
+
+ mult = 1 << (20 - CFS_PAGE_SHIFT);
+ rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
+ if (rc)
+ return rc;
+
+ /* Cap this at the current max readahead window size, the readahead
+ * algorithm does this anyway so it's pointless to set it larger. */
+ if (pages_number < 0 || pages_number > sbi->ll_ra_info.ra_max_pages) {
+ CERROR("can't set max_read_ahead_whole_mb more than "
+ "max_read_ahead_mb: %lu\n",
+ sbi->ll_ra_info.ra_max_pages >> (20 - CFS_PAGE_SHIFT));
+ return -ERANGE;
+ }
+
+ spin_lock(&sbi->ll_lock);
+ sbi->ll_ra_info.ra_max_read_ahead_whole_pages = pages_number;
+ spin_unlock(&sbi->ll_lock);
+
+ return count;
+}
+
+static int ll_rd_max_cached_mb(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
struct super_block *sb = data;
struct ll_sb_info *sbi = ll_s2sbi(sb);
- unsigned val;
+ long pages_number;
+ int mult;
spin_lock(&sbi->ll_lock);
- val = (sbi->ll_max_read_ahead_pages << PAGE_CACHE_SHIFT) >> 20;
+ pages_number = sbi->ll_async_page_max;
spin_unlock(&sbi->ll_lock);
- return snprintf(page, count, "%u\n", val);
+ mult = 1 << (20 - CFS_PAGE_SHIFT);
+ return lprocfs_read_frac_helper(page, count, pages_number, mult);;
}
-static int ll_wr_max_read_ahead_mb(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int ll_wr_max_cached_mb(struct file *file, const char *buffer,
+ unsigned long count, void *data)
{
struct super_block *sb = data;
struct ll_sb_info *sbi = ll_s2sbi(sb);
- int val, rc;
+ int mult, rc, pages_number;
- rc = lprocfs_write_helper(buffer, count, &val);
+ mult = 1 << (20 - CFS_PAGE_SHIFT);
+ rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
if (rc)
return rc;
- if (val < 0 || val > (num_physpages << PAGE_SHIFT) >> 20)
+ if (pages_number < 0 || pages_number > num_physpages) {
+ CERROR("can't set max cache more than %lu MB\n",
+ num_physpages >> (20 - CFS_PAGE_SHIFT));
return -ERANGE;
+ }
spin_lock(&sbi->ll_lock);
- sbi->ll_max_read_ahead_pages = (val << 20) >> PAGE_CACHE_SHIFT;
+ sbi->ll_async_page_max = pages_number ;
spin_unlock(&sbi->ll_lock);
+
+ if (!sbi->ll_dt_exp)
+ /* Not set up yet, don't call llap_shrink_cache */
+ return count;
+
+ if (sbi->ll_async_page_count >= sbi->ll_async_page_max)
+ llap_shrink_cache(sbi, 0);
return count;
}
+static int ll_rd_checksum(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct super_block *sb = data;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+
+ return snprintf(page, count, "%u\n",
+ (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0);
+}
+
+static int ll_wr_checksum(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct super_block *sb = data;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ int val, rc;
+
+ if (!sbi->ll_dt_exp)
+ /* Not set up yet */
+ return -EAGAIN;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
+ if (val)
+ sbi->ll_flags |= LL_SBI_CHECKSUM;
+ else
+ sbi->ll_flags &= ~LL_SBI_CHECKSUM;
+
+ rc = obd_set_info_async(sbi->ll_dt_exp, strlen("checksum"), "checksum",
+ sizeof(val), &val, NULL);
+ if (rc)
+ CWARN("Failed to set OSC checksum flags: %d\n", rc);
+
+ return count;
+}
+
+static int ll_rd_max_rw_chunk(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct super_block *sb = data;
+
+ return snprintf(page, count, "%lu\n", ll_s2sbi(sb)->ll_max_rw_chunk);
+}
+
+static int ll_wr_max_rw_chunk(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct super_block *sb = data;
+ int rc, val;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
+ ll_s2sbi(sb)->ll_max_rw_chunk = val;
+ return count;
+}
+
+static int ll_rd_track_id(char *page, int count, void *data,
+ enum stats_track_type type)
+{
+ struct super_block *sb = data;
+
+ if (ll_s2sbi(sb)->ll_stats_track_type == type) {
+ return snprintf(page, count, "%d\n",
+ ll_s2sbi(sb)->ll_stats_track_id);
+
+ } else if (ll_s2sbi(sb)->ll_stats_track_type == STATS_TRACK_ALL) {
+ return snprintf(page, count, "0 (all)\n");
+ } else {
+ return snprintf(page, count, "untracked\n");
+ }
+}
+
+static int ll_wr_track_id(const char *buffer, unsigned long count, void *data,
+ enum stats_track_type type)
+{
+ struct super_block *sb = data;
+ int rc, pid;
+
+ rc = lprocfs_write_helper(buffer, count, &pid);
+ if (rc)
+ return rc;
+ ll_s2sbi(sb)->ll_stats_track_id = pid;
+ if (pid == 0)
+ ll_s2sbi(sb)->ll_stats_track_type = STATS_TRACK_ALL;
+ else
+ ll_s2sbi(sb)->ll_stats_track_type = type;
+ lprocfs_clear_stats(ll_s2sbi(sb)->ll_stats);
+ return count;
+}
+
+static int ll_rd_track_pid(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ return (ll_rd_track_id(page, count, data, STATS_TRACK_PID));
+}
+
+static int ll_wr_track_pid(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ return (ll_wr_track_id(buffer, count, data, STATS_TRACK_PID));
+}
+
+static int ll_rd_track_ppid(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ return (ll_rd_track_id(page, count, data, STATS_TRACK_PPID));
+}
+
+static int ll_wr_track_ppid(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ return (ll_wr_track_id(buffer, count, data, STATS_TRACK_PPID));
+}
+
+static int ll_rd_track_gid(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ return (ll_rd_track_id(page, count, data, STATS_TRACK_GID));
+}
+
+static int ll_wr_track_gid(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ return (ll_wr_track_id(buffer, count, data, STATS_TRACK_GID));
+}
+
static struct lprocfs_vars lprocfs_obd_vars[] = {
{ "uuid", ll_rd_sb_uuid, 0, 0 },
//{ "mntpt_path", ll_rd_path, 0, 0 },
{ "kbytesavail", ll_rd_kbytesavail, 0, 0 },
{ "filestotal", ll_rd_filestotal, 0, 0 },
{ "filesfree", ll_rd_filesfree, 0, 0 },
+ { "client_type", ll_rd_client_type, 0, 0 },
//{ "filegroups", lprocfs_rd_filegroups, 0, 0 },
- { "read_ahead", ll_rd_read_ahead, ll_wr_read_ahead, 0 },
- { "config_update", 0, ll_wr_config_update, 0 },
- { "max_read_ahead_mb", ll_rd_max_read_ahead_mb,
- ll_wr_max_read_ahead_mb, 0 },
+ { "max_read_ahead_mb", ll_rd_max_readahead_mb,
+ ll_wr_max_readahead_mb, 0 },
+ { "max_read_ahead_whole_mb", ll_rd_max_read_ahead_whole_mb,
+ ll_wr_max_read_ahead_whole_mb, 0 },
+ { "max_cached_mb", ll_rd_max_cached_mb, ll_wr_max_cached_mb, 0 },
+ { "checksum_pages", ll_rd_checksum, ll_wr_checksum, 0 },
+ { "max_rw_chunk", ll_rd_max_rw_chunk, ll_wr_max_rw_chunk, 0 },
+ { "stats_track_pid", ll_rd_track_pid, ll_wr_track_pid, 0 },
+ { "stats_track_ppid", ll_rd_track_ppid, ll_wr_track_ppid, 0 },
+ { "stats_track_gid", ll_rd_track_gid, ll_wr_track_gid, 0 },
{ 0 }
};
{ LPROC_LL_FSYNC, LPROCFS_TYPE_REGS, "fsync" },
/* inode operation */
{ LPROC_LL_SETATTR, LPROCFS_TYPE_REGS, "setattr" },
- { LPROC_LL_TRUNC, LPROCFS_TYPE_REGS, "punch" },
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+ { LPROC_LL_TRUNC, LPROCFS_TYPE_REGS, "truncate" },
+ { LPROC_LL_FLOCK, LPROCFS_TYPE_REGS, "flock" },
{ LPROC_LL_GETATTR, LPROCFS_TYPE_REGS, "getattr" },
-#else
- { LPROC_LL_REVALIDATE, LPROCFS_TYPE_REGS, "getattr" },
-#endif
/* special inode operation */
{ LPROC_LL_STAFS, LPROCFS_TYPE_REGS, "statfs" },
{ LPROC_LL_ALLOC_INODE, LPROCFS_TYPE_REGS, "alloc_inode" },
+ { LPROC_LL_SETXATTR, LPROCFS_TYPE_REGS, "setxattr" },
+ { LPROC_LL_GETXATTR, LPROCFS_TYPE_REGS, "getxattr" },
+ { LPROC_LL_LISTXATTR, LPROCFS_TYPE_REGS, "listxattr" },
+ { LPROC_LL_REMOVEXATTR, LPROCFS_TYPE_REGS, "removexattr" },
+ { LPROC_LL_INODE_PERM, LPROCFS_TYPE_REGS, "inode_permission" },
{ LPROC_LL_DIRECT_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
"direct_read" },
{ LPROC_LL_DIRECT_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
};
+void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count)
+{
+ if (!sbi->ll_stats)
+ return;
+ if (sbi->ll_stats_track_type == STATS_TRACK_ALL)
+ lprocfs_counter_add(sbi->ll_stats, op, count);
+ else if (sbi->ll_stats_track_type == STATS_TRACK_PID &&
+ sbi->ll_stats_track_id == current->pid)
+ lprocfs_counter_add(sbi->ll_stats, op, count);
+ else if (sbi->ll_stats_track_type == STATS_TRACK_PPID &&
+ sbi->ll_stats_track_id == current->p_pptr->pid)
+ lprocfs_counter_add(sbi->ll_stats, op, count);
+ else if (sbi->ll_stats_track_type == STATS_TRACK_GID &&
+ sbi->ll_stats_track_id == current->gid)
+ lprocfs_counter_add(sbi->ll_stats, op, count);
+}
+EXPORT_SYMBOL(ll_stats_ops_tally);
+
int lprocfs_register_mountpoint(struct proc_dir_entry *parent,
struct super_block *sb, char *osc, char *mdc)
{
struct lprocfs_vars lvars[2];
+ struct lustre_sb_info *lsi = s2lsi(sb);
struct ll_sb_info *sbi = ll_s2sbi(sb);
struct obd_device *obd;
- char name[MAX_STRING_SIZE + 1];
- int err, id;
- struct lprocfs_stats *svc_stats = NULL;
- struct proc_dir_entry *mdc_symlink, *osc_symlink;
+ char name[MAX_STRING_SIZE + 1], *ptr;
+ int err, id, len;
struct proc_dir_entry *entry;
ENTRY;
LASSERT(mdc != NULL);
LASSERT(osc != NULL);
+ /* Get fsname */
+ len = strlen(lsi->lsi_lmd->lmd_profile);
+ ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-');
+ if (ptr && (strcmp(ptr, "-client") == 0))
+ len -= 7;
+
/* Mount info */
- snprintf(name, MAX_STRING_SIZE, "fs%llu", mnt_instance);
-
- mnt_instance++;
+ snprintf(name, MAX_STRING_SIZE, "%.*s-%p", len,
+ lsi->lsi_lmd->lmd_profile, sb);
+
sbi->ll_proc_root = lprocfs_register(name, parent, NULL, NULL);
if (IS_ERR(sbi->ll_proc_root)) {
err = PTR_ERR(sbi->ll_proc_root);
entry->proc_fops = &llite_dump_pgcache_fops;
entry->data = sbi;
- svc_stats = lprocfs_alloc_stats(LPROC_LL_FILE_OPCODES);
- if (svc_stats == NULL) {
- err = -ENOMEM;
- goto out;
- }
+ entry = create_proc_entry("read_ahead_stats", 0644, sbi->ll_proc_root);
+ if (entry == NULL)
+ GOTO(out, err = -ENOMEM);
+ entry->proc_fops = &ll_ra_stats_fops;
+ entry->data = sbi;
+
+ entry = create_proc_entry("extents_stats", 0644, sbi->ll_proc_root);
+ if (entry == NULL)
+ GOTO(out, err = -ENOMEM);
+ entry->proc_fops = &ll_rw_extents_stats_fops;
+ entry->data = sbi;
+
+ entry = create_proc_entry("extents_stats_per_process", 0644,
+ sbi->ll_proc_root);
+ if (entry == NULL)
+ GOTO(out, err = -ENOMEM);
+ entry->proc_fops = &ll_rw_extents_stats_pp_fops;
+ entry->data = sbi;
+
+ entry = create_proc_entry("offset_stats", 0644, sbi->ll_proc_root);
+ if (entry == NULL)
+ GOTO(out, err = -ENOMEM);
+ entry->proc_fops = &ll_rw_offset_stats_fops;
+ entry->data = sbi;
+
+ /* File operations stats */
+ sbi->ll_stats = lprocfs_alloc_stats(LPROC_LL_FILE_OPCODES, 0);
+ if (sbi->ll_stats == NULL)
+ GOTO(out, err = -ENOMEM);
/* do counter init */
for (id = 0; id < LPROC_LL_FILE_OPCODES; id++) {
__u32 type = llite_opcode_table[id].type;
ptr = "pages";
}
}
- lprocfs_counter_init(svc_stats, llite_opcode_table[id].opcode,
+ lprocfs_counter_init(sbi->ll_stats,
+ llite_opcode_table[id].opcode,
(type & LPROCFS_CNTR_AVGMINMAX),
llite_opcode_table[id].opname, ptr);
}
- err = lprocfs_register_stats(sbi->ll_proc_root, "stats", svc_stats);
+ err = lprocfs_register_stats(sbi->ll_proc_root, "stats", sbi->ll_stats);
if (err)
- goto out;
- else
- sbi->ll_stats = svc_stats;
- /* need place to keep svc_stats */
+ GOTO(out, err);
- /* Static configuration info */
err = lprocfs_add_vars(sbi->ll_proc_root, lprocfs_obd_vars, sb);
if (err)
- goto out;
+ GOTO(out, err);
/* MDC info */
obd = class_name2obd(mdc);
LASSERT(obd != NULL);
- LASSERT(obd->obd_type != NULL);
+ LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
LASSERT(obd->obd_type->typ_name != NULL);
- snprintf(name, MAX_STRING_SIZE, "../../%s/%s",
- obd->obd_type->typ_name, obd->obd_name);
- mdc_symlink = proc_symlink(obd->obd_type->typ_name, sbi->ll_proc_root,
- name);
- if (mdc_symlink == NULL) {
- err = -ENOMEM;
- goto out;
- }
+ snprintf(name, MAX_STRING_SIZE, "%s/common_name",
+ obd->obd_type->typ_name);
+ lvars[0].read_fptr = lprocfs_rd_name;
+ err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
+ if (err)
+ GOTO(out, err);
+
+ snprintf(name, MAX_STRING_SIZE, "%s/uuid", obd->obd_type->typ_name);
+ lvars[0].read_fptr = lprocfs_rd_uuid;
+ err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
+ if (err)
+ GOTO(out, err);
/* OSC */
obd = class_name2obd(osc);
LASSERT(obd != NULL);
- LASSERT(obd->obd_type != NULL);
+ LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
LASSERT(obd->obd_type->typ_name != NULL);
- snprintf(name, MAX_STRING_SIZE, "../../%s/%s",
- obd->obd_type->typ_name, obd->obd_name);
- osc_symlink = proc_symlink(obd->obd_type->typ_name, sbi->ll_proc_root,
- name);
- if (osc_symlink == NULL)
- err = -ENOMEM;
-
+ snprintf(name, MAX_STRING_SIZE, "%s/common_name",
+ obd->obd_type->typ_name);
+ lvars[0].read_fptr = lprocfs_rd_name;
+ err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
+ if (err)
+ GOTO(out, err);
+ snprintf(name, MAX_STRING_SIZE, "%s/uuid", obd->obd_type->typ_name);
+ lvars[0].read_fptr = lprocfs_rd_uuid;
+ err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
out:
if (err) {
- if (svc_stats)
- lprocfs_free_stats(svc_stats);
- if (sbi->ll_proc_root)
- lprocfs_remove(sbi->ll_proc_root);
+ lprocfs_remove(&sbi->ll_proc_root);
+ lprocfs_free_stats(&sbi->ll_stats);
}
RETURN(err);
}
void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi)
{
if (sbi->ll_proc_root) {
- struct proc_dir_entry *file_stats =
- lprocfs_srch(sbi->ll_proc_root, "stats");
-
- if (file_stats) {
- lprocfs_free_stats(sbi->ll_stats);
- lprocfs_remove(file_stats);
- }
+ lprocfs_remove(&sbi->ll_proc_root);
+ lprocfs_free_stats(&sbi->ll_stats);
}
}
#undef MAX_STRING_SIZE
-static struct ll_async_page *llite_pglist_next_llap(struct ll_sb_info *sbi,
- struct list_head *list)
-{
- struct ll_async_page *llap;
- struct list_head *pos;
-
- list_for_each(pos, list) {
- if (pos == &sbi->ll_pglist)
- return NULL;
- llap = list_entry(pos, struct ll_async_page, llap_proc_item);
- if (llap->llap_page == NULL)
- continue;
- return llap;
- }
- LBUG();
- return NULL;
-}
-
#define seq_page_flag(seq, page, flag, has_flags) do { \
if (test_bit(PG_##flag, &(page)->flags)) { \
if (!has_flags) \
} \
} while(0);
+static void *llite_dump_pgcache_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ struct ll_async_page *dummy_llap = seq->private;
+
+ if (dummy_llap->llap_magic == 2)
+ return NULL;
+
+ return (void *)1;
+}
+
static int llite_dump_pgcache_seq_show(struct seq_file *seq, void *v)
{
struct ll_async_page *llap, *dummy_llap = seq->private;
/* 2.4 doesn't seem to have SEQ_START_TOKEN, so we implement
* it in our own state */
if (dummy_llap->llap_magic == 0) {
- seq_printf(seq, "generation | llap .cookie | page ");
- seq_printf(seq, "inode .index [ page flags ]\n");
+ seq_printf(seq, "gener | llap cookie origin wq du wb | page "
+ "inode index count [ page flags ]\n");
return 0;
}
spin_lock(&sbi->ll_lock);
- llap = llite_pglist_next_llap(sbi, &dummy_llap->llap_proc_item);
+ llap = llite_pglist_next_llap(sbi, &dummy_llap->llap_pglist_item);
if (llap != NULL) {
int has_flags = 0;
struct page *page = llap->llap_page;
- seq_printf(seq, "%lu | %p %p | %p %p %lu [",
- sbi->ll_pglist_gen,
- llap, llap->llap_cookie,
- page, page->mapping->host, page->index);
+ LASSERTF(llap->llap_origin < LLAP__ORIGIN_MAX, "%u\n",
+ llap->llap_origin);
+
+ seq_printf(seq," %5lu | %p %p %s %s %s %s | %p %lu/%u(%p) "
+ "%lu %u [",
+ sbi->ll_pglist_gen,
+ llap, llap->llap_cookie,
+ llap_origins[llap->llap_origin],
+ llap->llap_write_queued ? "wq" : "- ",
+ llap->llap_defer_uptodate ? "du" : "- ",
+ PageWriteback(page) ? "wb" : "-",
+ page, page->mapping->host->i_ino,
+ page->mapping->host->i_generation,
+ page->mapping->host, page->index,
+ page_count(page));
seq_page_flag(seq, page, locked, has_flags);
seq_page_flag(seq, page, error, has_flags);
seq_page_flag(seq, page, referenced, has_flags);
seq_page_flag(seq, page, uptodate, has_flags);
seq_page_flag(seq, page, dirty, has_flags);
+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,12))
seq_page_flag(seq, page, highmem, has_flags);
+#endif
+ seq_page_flag(seq, page, writeback, has_flags);
if (!has_flags)
seq_puts(seq, "-]\n");
else
return 0;
}
-static void *llite_dump_pgcache_seq_start(struct seq_file *seq, loff_t *pos)
-{
- struct ll_async_page *llap = seq->private;
-
- if (llap->llap_magic == 2)
- return NULL;
-
- return (void *)1;
-}
-
-static void *llite_dump_pgcache_seq_next(struct seq_file *seq, void *v,
+static void *llite_dump_pgcache_seq_next(struct seq_file *seq, void *v,
loff_t *pos)
{
struct ll_async_page *llap, *dummy_llap = seq->private;
* we advance to a position beyond it, returning null if there
* isn't another llap in the list beyond that new position. */
spin_lock(&sbi->ll_lock);
- llap = llite_pglist_next_llap(sbi, &dummy_llap->llap_proc_item);
- list_del_init(&dummy_llap->llap_proc_item);
+ llap = llite_pglist_next_llap(sbi, &dummy_llap->llap_pglist_item);
+ list_del_init(&dummy_llap->llap_pglist_item);
if (llap) {
- list_add(&dummy_llap->llap_proc_item, &llap->llap_proc_item);
- llap = llite_pglist_next_llap(sbi, &dummy_llap->llap_proc_item);
+ list_add(&dummy_llap->llap_pglist_item,&llap->llap_pglist_item);
+ llap =llite_pglist_next_llap(sbi,&dummy_llap->llap_pglist_item);
}
spin_unlock(&sbi->ll_lock);
return dummy_llap;
}
-static void llite_dump_pgcache_seq_stop(struct seq_file *seq, void *v)
+static void null_stop(struct seq_file *seq, void *v)
{
}
struct seq_operations llite_dump_pgcache_seq_sops = {
.start = llite_dump_pgcache_seq_start,
- .stop = llite_dump_pgcache_seq_stop,
+ .stop = null_stop,
.next = llite_dump_pgcache_seq_next,
.show = llite_dump_pgcache_seq_show,
};
static int llite_dump_pgcache_seq_open(struct inode *inode, struct file *file)
{
struct proc_dir_entry *dp = PDE(inode);
- struct ll_async_page *llap;
+ struct ll_async_page *dummy_llap;
struct seq_file *seq;
struct ll_sb_info *sbi = dp->data;
- int rc;
+ int rc = -ENOMEM;
+
+ LPROCFS_ENTRY_AND_CHECK(dp);
- OBD_ALLOC_GFP(llap, sizeof(*llap), GFP_KERNEL);
- if (llap == NULL)
- return -ENOMEM;
- llap->llap_page = NULL;
- llap->llap_cookie = sbi;
- llap->llap_magic = 0;
+ OBD_ALLOC_PTR_WAIT(dummy_llap);
+ if (dummy_llap == NULL)
+ GOTO(out, rc);
+ dummy_llap->llap_page = NULL;
+ dummy_llap->llap_cookie = sbi;
+ dummy_llap->llap_magic = 0;
rc = seq_open(file, &llite_dump_pgcache_seq_sops);
if (rc) {
- OBD_FREE(llap, sizeof(*llap));
- return rc;
+ OBD_FREE(dummy_llap, sizeof(*dummy_llap));
+ GOTO(out, rc);
}
seq = file->private_data;
- seq->private = llap;
+ seq->private = dummy_llap;
spin_lock(&sbi->ll_lock);
- list_add(&llap->llap_proc_item, &sbi->ll_pglist);
+ list_add(&dummy_llap->llap_pglist_item, &sbi->ll_pglist);
spin_unlock(&sbi->ll_lock);
- return 0;
+out:
+ if (rc)
+ LPROCFS_EXIT();
+ return rc;
}
static int llite_dump_pgcache_seq_release(struct inode *inode,
struct file *file)
{
struct seq_file *seq = file->private_data;
- struct ll_async_page *llap = seq->private;
- struct ll_sb_info *sbi = llap->llap_cookie;
+ struct ll_async_page *dummy_llap = seq->private;
+ struct ll_sb_info *sbi = dummy_llap->llap_cookie;
spin_lock(&sbi->ll_lock);
- if (!list_empty(&llap->llap_proc_item))
- list_del_init(&llap->llap_proc_item);
+ if (!list_empty(&dummy_llap->llap_pglist_item))
+ list_del_init(&dummy_llap->llap_pglist_item);
spin_unlock(&sbi->ll_lock);
- OBD_FREE(llap, sizeof(*llap));
+ OBD_FREE(dummy_llap, sizeof(*dummy_llap));
- return seq_release(inode, file);
+ return lprocfs_seq_release(inode, file);
}
struct file_operations llite_dump_pgcache_fops = {
.release = llite_dump_pgcache_seq_release,
};
+static int ll_ra_stats_seq_show(struct seq_file *seq, void *v)
+{
+ struct timeval now;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_ra_info *ra = &sbi->ll_ra_info;
+ int i;
+ static char *ra_stat_strings[] = {
+ [RA_STAT_HIT] = "hits",
+ [RA_STAT_MISS] = "misses",
+ [RA_STAT_DISTANT_READPAGE] = "readpage not consecutive",
+ [RA_STAT_MISS_IN_WINDOW] = "miss inside window",
+ [RA_STAT_FAILED_GRAB_PAGE] = "failed grab_cache_page",
+ [RA_STAT_FAILED_MATCH] = "failed lock match",
+ [RA_STAT_DISCARDED] = "read but discarded",
+ [RA_STAT_ZERO_LEN] = "zero length file",
+ [RA_STAT_ZERO_WINDOW] = "zero size window",
+ [RA_STAT_EOF] = "read-ahead to EOF",
+ [RA_STAT_MAX_IN_FLIGHT] = "hit max r-a issue",
+ [RA_STAT_WRONG_GRAB_PAGE] = "wrong page from grab_cache_page",
+ };
+
+ do_gettimeofday(&now);
+
+ spin_lock(&sbi->ll_lock);
+
+ seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
+ now.tv_sec, now.tv_usec);
+ seq_printf(seq, "pending issued pages: %lu\n",
+ ra->ra_cur_pages);
+
+ for(i = 0; i < _NR_RA_STAT; i++)
+ seq_printf(seq, "%-25s %lu\n", ra_stat_strings[i],
+ ra->ra_stats[i]);
+
+ spin_unlock(&sbi->ll_lock);
+
+ return 0;
+}
+
+static ssize_t ll_ra_stats_seq_write(struct file *file, const char *buf,
+ size_t len, loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_ra_info *ra = &sbi->ll_ra_info;
+
+ spin_lock(&sbi->ll_lock);
+ memset(ra->ra_stats, 0, sizeof(ra->ra_stats));
+ spin_unlock(&sbi->ll_lock);
+
+ return len;
+}
+
+LPROC_SEQ_FOPS(ll_ra_stats);
+
+#define pct(a,b) (b ? a * 100 / b : 0)
+
+static void ll_display_extents_info(struct ll_rw_extents_info *io_extents,
+ struct seq_file *seq, int which)
+{
+ unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
+ unsigned long start, end, r, w;
+ char *unitp = "KMGTPEZY";
+ int i, units = 10;
+ struct per_process_info *pp_info = &io_extents->pp_extents[which];
+
+ read_cum = 0;
+ write_cum = 0;
+ start = 0;
+
+ for(i = 0; i < LL_HIST_MAX; i++) {
+ read_tot += pp_info->pp_r_hist.oh_buckets[i];
+ write_tot += pp_info->pp_w_hist.oh_buckets[i];
+ }
+
+ for(i = 0; i < LL_HIST_MAX; i++) {
+ r = pp_info->pp_r_hist.oh_buckets[i];
+ w = pp_info->pp_w_hist.oh_buckets[i];
+ read_cum += r;
+ write_cum += w;
+ end = 1 << (i + LL_HIST_START - units);
+ seq_printf(seq, "%4lu%c - %4lu%c%c: %14lu %4lu %4lu | "
+ "%14lu %4lu %4lu\n", start, *unitp, end, *unitp,
+ (i == LL_HIST_MAX - 1) ? '+' : ' ',
+ r, pct(r, read_tot), pct(read_cum, read_tot),
+ w, pct(w, write_tot), pct(write_cum, write_tot));
+ start = end;
+ if (start == 1<<10) {
+ start = 1;
+ units += 10;
+ unitp++;
+ }
+ if (read_cum == read_tot && write_cum == write_tot)
+ break;
+ }
+}
+
+static int ll_rw_extents_stats_pp_seq_show(struct seq_file *seq, void *v)
+{
+ struct timeval now;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
+ int k;
+
+ do_gettimeofday(&now);
+
+ if (!sbi->ll_rw_stats_on) {
+ seq_printf(seq, "Disabled\n"
+ "Write anything in this file to activate\n");
+ return 0;
+ }
+ seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
+ now.tv_sec, now.tv_usec);
+ seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write");
+ seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n",
+ "extents", "calls", "%", "cum%",
+ "calls", "%", "cum%");
+ spin_lock(&sbi->ll_pp_extent_lock);
+ for(k = 0; k < LL_PROCESS_HIST_MAX; k++) {
+ if(io_extents->pp_extents[k].pid != 0) {
+ seq_printf(seq, "\nPID: %d\n",
+ io_extents->pp_extents[k].pid);
+ ll_display_extents_info(io_extents, seq, k);
+ }
+ }
+ spin_unlock(&sbi->ll_pp_extent_lock);
+ return 0;
+}
+
+static ssize_t ll_rw_extents_stats_pp_seq_write(struct file *file,
+ const char *buf, size_t len,
+ loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
+ int i;
+
+ sbi->ll_rw_stats_on = 1;
+ spin_lock(&sbi->ll_pp_extent_lock);
+ for(i = 0; i < LL_PROCESS_HIST_MAX; i++) {
+ io_extents->pp_extents[i].pid = 0;
+ lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
+ lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
+ }
+ spin_unlock(&sbi->ll_pp_extent_lock);
+ return len;
+}
+
+LPROC_SEQ_FOPS(ll_rw_extents_stats_pp);
+
+static int ll_rw_extents_stats_seq_show(struct seq_file *seq, void *v)
+{
+ struct timeval now;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
+
+ do_gettimeofday(&now);
+
+ if (!sbi->ll_rw_stats_on) {
+ seq_printf(seq, "Disabled\n"
+ "Write anything in this file to activate\n");
+ return 0;
+ }
+ seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
+ now.tv_sec, now.tv_usec);
+
+ seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write");
+ seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n",
+ "extents", "calls", "%", "cum%",
+ "calls", "%", "cum%");
+ spin_lock(&sbi->ll_lock);
+ ll_display_extents_info(io_extents, seq, LL_PROCESS_HIST_MAX);
+ spin_unlock(&sbi->ll_lock);
+
+ return 0;
+}
+
+static ssize_t ll_rw_extents_stats_seq_write(struct file *file, const char *buf,
+ size_t len, loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
+ int i;
+
+ sbi->ll_rw_stats_on = 1;
+ spin_lock(&sbi->ll_pp_extent_lock);
+ for(i = 0; i <= LL_PROCESS_HIST_MAX; i++)
+ {
+ io_extents->pp_extents[i].pid = 0;
+ lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
+ lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
+ }
+ spin_unlock(&sbi->ll_pp_extent_lock);
+
+ return len;
+}
+
+LPROC_SEQ_FOPS(ll_rw_extents_stats);
+
+void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid, struct file
+ *file, size_t count, int rw)
+{
+ int i, cur = -1;
+ struct ll_rw_process_info *process;
+ struct ll_rw_process_info *offset;
+ int *off_count = &sbi->ll_rw_offset_entry_count;
+ int *process_count = &sbi->ll_offset_process_count;
+ struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
+
+ if(!sbi->ll_rw_stats_on)
+ return;
+ process = sbi->ll_rw_process_info;
+ offset = sbi->ll_rw_offset_info;
+
+ spin_lock(&sbi->ll_pp_extent_lock);
+ /* Extent statistics */
+ for(i = 0; i < LL_PROCESS_HIST_MAX; i++) {
+ if(io_extents->pp_extents[i].pid == pid) {
+ cur = i;
+ break;
+ }
+ }
+
+ if (cur == -1) {
+ /* new process */
+ sbi->ll_extent_process_count =
+ (sbi->ll_extent_process_count + 1) % LL_PROCESS_HIST_MAX;
+ cur = sbi->ll_extent_process_count;
+ io_extents->pp_extents[cur].pid = pid;
+ lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_r_hist);
+ lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_w_hist);
+ }
+
+ for(i = 0; (count >= (1 << LL_HIST_START << i)) &&
+ (i < (LL_HIST_MAX - 1)); i++);
+ if (rw == 0) {
+ io_extents->pp_extents[cur].pp_r_hist.oh_buckets[i]++;
+ io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_r_hist.oh_buckets[i]++;
+ } else {
+ io_extents->pp_extents[cur].pp_w_hist.oh_buckets[i]++;
+ io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_w_hist.oh_buckets[i]++;
+ }
+ spin_unlock(&sbi->ll_pp_extent_lock);
+
+ spin_lock(&sbi->ll_process_lock);
+ /* Offset statistics */
+ for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
+ if (process[i].rw_pid == pid) {
+ if (process[i].rw_last_file != file) {
+ process[i].rw_range_start = file->f_pos;
+ process[i].rw_last_file_pos =
+ file->f_pos + count;
+ process[i].rw_smallest_extent = count;
+ process[i].rw_largest_extent = count;
+ process[i].rw_offset = 0;
+ process[i].rw_last_file = file;
+ spin_unlock(&sbi->ll_process_lock);
+ return;
+ }
+ if (process[i].rw_last_file_pos != file->f_pos) {
+ *off_count =
+ (*off_count + 1) % LL_OFFSET_HIST_MAX;
+ offset[*off_count].rw_op = process[i].rw_op;
+ offset[*off_count].rw_pid = pid;
+ offset[*off_count].rw_range_start =
+ process[i].rw_range_start;
+ offset[*off_count].rw_range_end =
+ process[i].rw_last_file_pos;
+ offset[*off_count].rw_smallest_extent =
+ process[i].rw_smallest_extent;
+ offset[*off_count].rw_largest_extent =
+ process[i].rw_largest_extent;
+ offset[*off_count].rw_offset =
+ process[i].rw_offset;
+ process[i].rw_op = rw;
+ process[i].rw_range_start = file->f_pos;
+ process[i].rw_smallest_extent = count;
+ process[i].rw_largest_extent = count;
+ process[i].rw_offset = file->f_pos -
+ process[i].rw_last_file_pos;
+ }
+ if(process[i].rw_smallest_extent > count)
+ process[i].rw_smallest_extent = count;
+ if(process[i].rw_largest_extent < count)
+ process[i].rw_largest_extent = count;
+ process[i].rw_last_file_pos = file->f_pos + count;
+ spin_unlock(&sbi->ll_process_lock);
+ return;
+ }
+ }
+ *process_count = (*process_count + 1) % LL_PROCESS_HIST_MAX;
+ process[*process_count].rw_pid = pid;
+ process[*process_count].rw_op = rw;
+ process[*process_count].rw_range_start = file->f_pos;
+ process[*process_count].rw_last_file_pos = file->f_pos + count;
+ process[*process_count].rw_smallest_extent = count;
+ process[*process_count].rw_largest_extent = count;
+ process[*process_count].rw_offset = 0;
+ process[*process_count].rw_last_file = file;
+ spin_unlock(&sbi->ll_process_lock);
+}
+
+char lpszt[] = LPSZ;
+
+static int ll_rw_offset_stats_seq_show(struct seq_file *seq, void *v)
+{
+ struct timeval now;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_process_info *offset = sbi->ll_rw_offset_info;
+ struct ll_rw_process_info *process = sbi->ll_rw_process_info;
+ char format[50];
+ int i;
+
+ do_gettimeofday(&now);
+
+ if (!sbi->ll_rw_stats_on) {
+ seq_printf(seq, "Disabled\n"
+ "Write anything in this file to activate\n");
+ return 0;
+ }
+ spin_lock(&sbi->ll_process_lock);
+
+ seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
+ now.tv_sec, now.tv_usec);
+ seq_printf(seq, "%3s %10s %14s %14s %17s %17s %14s\n",
+ "R/W", "PID", "RANGE START", "RANGE END",
+ "SMALLEST EXTENT", "LARGEST EXTENT", "OFFSET");
+ sprintf(format, "%s%s%s%s%s\n",
+ "%3c %10d %14Lu %14Lu %17", lpszt+1, " %17", lpszt+1, " %14Ld");
+ /* We stored the discontiguous offsets here; print them first */
+ for(i = 0; i < LL_OFFSET_HIST_MAX; i++) {
+ if (offset[i].rw_pid != 0)
+ /* Is there a way to snip the '%' off of LPSZ? */
+ seq_printf(seq, format,
+ offset[i].rw_op ? 'W' : 'R',
+ offset[i].rw_pid,
+ offset[i].rw_range_start,
+ offset[i].rw_range_end,
+ offset[i].rw_smallest_extent,
+ offset[i].rw_largest_extent,
+ offset[i].rw_offset);
+ }
+ /* Then print the current offsets for each process */
+ for(i = 0; i < LL_PROCESS_HIST_MAX; i++) {
+ if (process[i].rw_pid != 0)
+ seq_printf(seq, format,
+ process[i].rw_op ? 'W' : 'R',
+ process[i].rw_pid,
+ process[i].rw_range_start,
+ process[i].rw_last_file_pos,
+ process[i].rw_smallest_extent,
+ process[i].rw_largest_extent,
+ process[i].rw_offset);
+ }
+ spin_unlock(&sbi->ll_process_lock);
+
+ return 0;
+}
+
+static ssize_t ll_rw_offset_stats_seq_write(struct file *file, const char *buf,
+ size_t len, loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_process_info *process_info = sbi->ll_rw_process_info;
+ struct ll_rw_process_info *offset_info = sbi->ll_rw_offset_info;
+
+ sbi->ll_rw_stats_on = 1;
+
+ spin_lock(&sbi->ll_process_lock);
+ sbi->ll_offset_process_count = 0;
+ sbi->ll_rw_offset_entry_count = 0;
+ memset(process_info, 0, sizeof(struct ll_rw_process_info) *
+ LL_PROCESS_HIST_MAX);
+ memset(offset_info, 0, sizeof(struct ll_rw_process_info) *
+ LL_OFFSET_HIST_MAX);
+ spin_unlock(&sbi->ll_process_lock);
+
+ return len;
+}
+
+LPROC_SEQ_FOPS(ll_rw_offset_stats);
+
+LPROCFS_INIT_VARS(llite, NULL, lprocfs_obd_vars)
#endif /* LPROCFS */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff