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authorOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>2006-01-08 01:02:08 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-08 20:13:46 -0800
commita6bf6b211cdb92c315c24719a522d8b6f3998210 (patch)
treef6719d61b5766014d137a00cc346c1f5d0902869
parent9ded96f24c3a5fcbef954e88c443385a1af37eb9 (diff)
downloadop-kernel-dev-a6bf6b211cdb92c315c24719a522d8b6f3998210.zip
op-kernel-dev-a6bf6b211cdb92c315c24719a522d8b6f3998210.tar.gz
[PATCH] fat: move fat_clusters_flush() to write_super()
It is overkill to update the FS_INFO whenever modifying prev_free/free_clusters, because those are just a hint. So, this patch uses ->write_super() for updating FS_INFO instead. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--fs/fat/fatent.c8
-rw-r--r--fs/fat/inode.c10
-rw-r--r--fs/fat/misc.c2
3 files changed, 14 insertions, 6 deletions
diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 4164cd5..20a2287 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -476,6 +476,7 @@ int fat_alloc_clusters(struct inode *inode, int *cluster, int nr_cluster)
sbi->prev_free = entry;
if (sbi->free_clusters != -1)
sbi->free_clusters--;
+ sb->s_dirt = 1;
cluster[idx_clus] = entry;
idx_clus++;
@@ -496,6 +497,7 @@ int fat_alloc_clusters(struct inode *inode, int *cluster, int nr_cluster)
/* Couldn't allocate the free entries */
sbi->free_clusters = 0;
+ sb->s_dirt = 1;
err = -ENOSPC;
out:
@@ -509,7 +511,6 @@ out:
}
for (i = 0; i < nr_bhs; i++)
brelse(bhs[i]);
- fat_clusters_flush(sb);
if (err && idx_clus)
fat_free_clusters(inode, cluster[0]);
@@ -542,8 +543,10 @@ int fat_free_clusters(struct inode *inode, int cluster)
}
ops->ent_put(&fatent, FAT_ENT_FREE);
- if (sbi->free_clusters != -1)
+ if (sbi->free_clusters != -1) {
sbi->free_clusters++;
+ sb->s_dirt = 1;
+ }
if (nr_bhs + fatent.nr_bhs > MAX_BUF_PER_PAGE) {
if (sb->s_flags & MS_SYNCHRONOUS) {
@@ -605,6 +608,7 @@ int fat_count_free_clusters(struct super_block *sb)
} while (fat_ent_next(sbi, &fatent));
}
sbi->free_clusters = free;
+ sb->s_dirt = 1;
fatent_brelse(&fatent);
out:
unlock_fat(sbi);
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index a0f9b9f..8973126 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -374,12 +374,17 @@ static void fat_clear_inode(struct inode *inode)
unlock_kernel();
}
-static void fat_put_super(struct super_block *sb)
+static void fat_write_super(struct super_block *sb)
{
- struct msdos_sb_info *sbi = MSDOS_SB(sb);
+ sb->s_dirt = 0;
if (!(sb->s_flags & MS_RDONLY))
fat_clusters_flush(sb);
+}
+
+static void fat_put_super(struct super_block *sb)
+{
+ struct msdos_sb_info *sbi = MSDOS_SB(sb);
if (sbi->nls_disk) {
unload_nls(sbi->nls_disk);
@@ -546,6 +551,7 @@ static struct super_operations fat_sops = {
.write_inode = fat_write_inode,
.delete_inode = fat_delete_inode,
.put_super = fat_put_super,
+ .write_super = fat_write_super,
.statfs = fat_statfs,
.clear_inode = fat_clear_inode,
.remount_fs = fat_remount,
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index 2a0df21..9b592e3 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -67,8 +67,6 @@ void fat_clusters_flush(struct super_block *sb)
if (sbi->prev_free != -1)
fsinfo->next_cluster = cpu_to_le32(sbi->prev_free);
mark_buffer_dirty(bh);
- if (sb->s_flags & MS_SYNCHRONOUS)
- sync_dirty_buffer(bh);
}
brelse(bh);
}
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