[merged] nilfs2-get-rid-of-nilfs_palloc_group_is_in.patch removed from -mm tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The patch titled
     Subject: nilfs2: get rid of nilfs_palloc_group_is_in()
has been removed from the -mm tree.  Its filename was
     nilfs2-get-rid-of-nilfs_palloc_group_is_in.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
Subject: nilfs2: get rid of nilfs_palloc_group_is_in()

This unfolds nilfs_palloc_group_is_in() helper function into
nilfs_palloc_freev() function to simplify a range check and an index
calculation repeatedy performed in a loop of the function.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 fs/nilfs2/alloc.c |   28 +++++++++-------------------
 1 file changed, 9 insertions(+), 19 deletions(-)

diff -puN fs/nilfs2/alloc.c~nilfs2-get-rid-of-nilfs_palloc_group_is_in fs/nilfs2/alloc.c
--- a/fs/nilfs2/alloc.c~nilfs2-get-rid-of-nilfs_palloc_group_is_in
+++ a/fs/nilfs2/alloc.c
@@ -673,22 +673,6 @@ void nilfs_palloc_abort_free_entry(struc
 }
 
 /**
- * nilfs_palloc_group_is_in - judge if an entry is in a group
- * @inode: inode of metadata file using this allocator
- * @group: group number
- * @nr: serial number of the entry (e.g. inode number)
- */
-static int
-nilfs_palloc_group_is_in(struct inode *inode, unsigned long group, __u64 nr)
-{
-	__u64 first, last;
-
-	first = group * nilfs_palloc_entries_per_group(inode);
-	last = first + nilfs_palloc_entries_per_group(inode) - 1;
-	return (nr >= first) && (nr <= last);
-}
-
-/**
  * nilfs_palloc_freev - deallocate a set of persistent objects
  * @inode: inode of metadata file using this allocator
  * @entry_nrs: array of entry numbers to be deallocated
@@ -701,6 +685,8 @@ int nilfs_palloc_freev(struct inode *ino
 	unsigned char *bitmap;
 	void *desc_kaddr, *bitmap_kaddr;
 	unsigned long group, group_offset;
+	__u64 group_min_nr;
+	const unsigned long epg = nilfs_palloc_entries_per_group(inode);
 	spinlock_t *lock;
 	int i, j, n, ret;
 
@@ -715,6 +701,10 @@ int nilfs_palloc_freev(struct inode *ino
 			brelse(desc_bh);
 			return ret;
 		}
+
+		/* Get the first entry number of the group */
+		group_min_nr = (__u64)group * epg;
+
 		desc_kaddr = kmap(desc_bh->b_page);
 		desc = nilfs_palloc_block_get_group_desc(
 			inode, group, desc_bh, desc_kaddr);
@@ -722,10 +712,10 @@ int nilfs_palloc_freev(struct inode *ino
 		bitmap = bitmap_kaddr + bh_offset(bitmap_bh);
 		lock = nilfs_mdt_bgl_lock(inode, group);
 		for (j = i, n = 0;
-		     (j < nitems) && nilfs_palloc_group_is_in(inode, group,
-							      entry_nrs[j]);
+		     j < nitems && entry_nrs[j] >= group_min_nr &&
+			     entry_nrs[j] < group_min_nr + epg;
 		     j++) {
-			nilfs_palloc_group(inode, entry_nrs[j], &group_offset);
+			group_offset = entry_nrs[j] - group_min_nr;
 			if (!nilfs_clear_bit_atomic(lock, group_offset,
 						    bitmap)) {
 				nilfs_warning(inode->i_sb, __func__,
_

Patches currently in -mm which might be from konishi.ryusuke@xxxxxxxxxxxxx are


--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Kernel Newbies FAQ]     [Kernel Archive]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [Bugtraq]     [Photo]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]

  Powered by Linux