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authorJan Kara <jack@suse.cz>2012-06-12 16:20:44 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2012-07-31 09:45:52 +0400
commit2c22b337b5bbb497c41b348b2357b7070ed5ba88 (patch)
tree781ca4825fe6383254a8b8528b23115fd389c48e /fs/nilfs2/segment.c
parentfbf8fb76505a9e5bbb47e91d964105b6ea59b0ec (diff)
nilfs2: Convert to new freezing mechanism
We change nilfs_page_mkwrite() to provide proper freeze protection for writeable page faults (we must wait for frozen filesystem even if the page is fully mapped). We remove all vfs_check_frozen() checks since they are now handled by the generic code. CC: linux-nilfs@vger.kernel.org CC: KONISHI Ryusuke <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/nilfs2/segment.c')
-rw-r--r--fs/nilfs2/segment.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 88e11fb346b..a5752a58993 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -189,7 +189,7 @@ int nilfs_transaction_begin(struct super_block *sb,
if (ret > 0)
return 0;
- vfs_check_frozen(sb, SB_FREEZE_WRITE);
+ sb_start_intwrite(sb);
nilfs = sb->s_fs_info;
down_read(&nilfs->ns_segctor_sem);
@@ -205,6 +205,7 @@ int nilfs_transaction_begin(struct super_block *sb,
current->journal_info = ti->ti_save;
if (ti->ti_flags & NILFS_TI_DYNAMIC_ALLOC)
kmem_cache_free(nilfs_transaction_cachep, ti);
+ sb_end_intwrite(sb);
return ret;
}
@@ -246,6 +247,7 @@ int nilfs_transaction_commit(struct super_block *sb)
err = nilfs_construct_segment(sb);
if (ti->ti_flags & NILFS_TI_DYNAMIC_ALLOC)
kmem_cache_free(nilfs_transaction_cachep, ti);
+ sb_end_intwrite(sb);
return err;
}
@@ -264,6 +266,7 @@ void nilfs_transaction_abort(struct super_block *sb)
current->journal_info = ti->ti_save;
if (ti->ti_flags & NILFS_TI_DYNAMIC_ALLOC)
kmem_cache_free(nilfs_transaction_cachep, ti);
+ sb_end_intwrite(sb);
}
void nilfs_relax_pressure_in_lock(struct super_block *sb)