translate-mode-bits-to-strings

   1 ext4: translate fallocate mode bits to strings
   2
   3 From: Lukas Czerner <lczerner@redhat.com>
   4
   5 Signed-off-by: Lukas Czerner <lczerner@redhat.com>
   6 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
   7 ---
   8  fs/ext4/ext4.h              | 1 +
   9  fs/ext4/extents.c           | 1 -
  10  include/trace/events/ext4.h | 9 +++++++--
  11  3 files changed, 8 insertions(+), 3 deletions(-)
  12
  13 diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
  14 index ece5556..3b9601c 100644
  15 --- a/fs/ext4/ext4.h
  16 +++ b/fs/ext4/ext4.h
  17 @@ -31,6 +31,7 @@
  18  #include <linux/percpu_counter.h>
  19  #include <linux/ratelimit.h>
  20  #include <crypto/hash.h>
  21 +#include <linux/falloc.h>
  22  #ifdef __KERNEL__
  23  #include <linux/compat.h>
  24  #endif
  25 diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
  26 index 0e675bc..e5485eb 100644
  27 --- a/fs/ext4/extents.c
  28 +++ b/fs/ext4/extents.c
  29 @@ -37,7 +37,6 @@
  30  #include <linux/quotaops.h>
  31  #include <linux/string.h>
  32  #include <linux/slab.h>
  33 -#include <linux/falloc.h>
  34  #include <asm/uaccess.h>
  35  #include <linux/fiemap.h>
  36  #include "ext4_jbd2.h"
  37 diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
  38 index 197d312..451e020 100644
  39 --- a/include/trace/events/ext4.h
  40 +++ b/include/trace/events/ext4.h
  41 @@ -68,6 +68,11 @@ struct extent_status;
  42         { EXTENT_STATUS_DELAYED,        "D" },                  \
  43         { EXTENT_STATUS_HOLE,           "H" })
  44
  45 +#define show_falloc_mode(mode) __print_flags(mode, "|",                \
  46 +       { FALLOC_FL_KEEP_SIZE,          "KEEP_SIZE"},           \
  47 +       { FALLOC_FL_PUNCH_HOLE,         "PUNCH_HOLE"},          \
  48 +       { FALLOC_FL_NO_HIDE_STALE,      "NO_HIDE_STALE"})
  49 +
  50
  51  TRACE_EVENT(ext4_free_inode,
  52         TP_PROTO(struct inode *inode),
  53 @@ -1349,10 +1354,10 @@ TRACE_EVENT(ext4_fallocate_enter,
  54                 __entry->mode   = mode;
  55         ),
  56
  57 -       TP_printk("dev %d,%d ino %lu pos %lld len %lld mode %d",
  58 +       TP_printk("dev %d,%d ino %lu pos %lld len %lld mode %s",
  59                   MAJOR(__entry->dev), MINOR(__entry->dev),
  60                   (unsigned long) __entry->ino, __entry->pos,
  61 -                 __entry->len, __entry->mode)
  62 +                 __entry->len, show_falloc_mode(__entry->mode))
  63  );
  64
  65  TRACE_EVENT(ext4_fallocate_exit,
  66 --
  67 1.8.3.1
  68
  69