The dnotify mask values range from 0x0001 through 0x0020, as well as
0x80000000 (for DN_MULTISHOT). There is no need for this field to be
an unsigned long (which is 8 bytes on 64-bit systems). Using an
unsigned int will save 4 bytes for the inode structure on 64-bit
systems.
Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
Cc: sfr@xxxxxxxxxxxxxxxx
Cc: linux-fsdevel@xxxxxxxxxxxxxxx
---
include/linux/dnotify.h | 2 +-
include/linux/fs.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/dnotify.h b/include/linux/dnotify.h
index 102a902..d573542 100644
--- a/include/linux/dnotify.h
+++ b/include/linux/dnotify.h
@@ -10,7 +10,7 @@
struct dnotify_struct {
struct dnotify_struct * dn_next;
- unsigned long dn_mask;
+ unsigned int dn_mask;
int dn_fd;
struct file * dn_filp;
fl_owner_t dn_owner;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e3b8334..7c73c59 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -755,7 +755,7 @@ struct inode {
__u32 i_generation;
#ifdef CONFIG_DNOTIFY
- unsigned long i_dnotify_mask; /* Directory notify events */
+ unsigned int i_dnotify_mask; /* Directory notify events */
struct dnotify_struct *i_dnotify; /* for directory notifications */
#endif
--
1.6.3.1.1.g75fc.dirty
--
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