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-rw-r--r--fs/logfs/dev_bdev.c15
-rw-r--r--fs/logfs/dir.c4
-rw-r--r--fs/logfs/inode.c29
-rw-r--r--fs/logfs/journal.c2
-rw-r--r--fs/logfs/readwrite.c19
-rw-r--r--fs/logfs/segment.c2
-rw-r--r--fs/logfs/super.c3
7 files changed, 49 insertions, 25 deletions
diff --git a/fs/logfs/dev_bdev.c b/fs/logfs/dev_bdev.c
index df0de27c273..e784a217b50 100644
--- a/fs/logfs/dev_bdev.c
+++ b/fs/logfs/dev_bdev.c
@@ -26,6 +26,7 @@ static int sync_request(struct page *page, struct block_device *bdev, int rw)
struct completion complete;
bio_init(&bio);
+ bio.bi_max_vecs = 1;
bio.bi_io_vec = &bio_vec;
bio_vec.bv_page = page;
bio_vec.bv_len = PAGE_SIZE;
@@ -95,12 +96,11 @@ static int __bdev_writeseg(struct super_block *sb, u64 ofs, pgoff_t index,
struct address_space *mapping = super->s_mapping_inode->i_mapping;
struct bio *bio;
struct page *page;
- struct request_queue *q = bdev_get_queue(sb->s_bdev);
- unsigned int max_pages = queue_max_hw_sectors(q) >> (PAGE_SHIFT - 9);
+ unsigned int max_pages;
int i;
- if (max_pages > BIO_MAX_PAGES)
- max_pages = BIO_MAX_PAGES;
+ max_pages = min(nr_pages, (size_t) bio_get_nr_vecs(super->s_bdev));
+
bio = bio_alloc(GFP_NOFS, max_pages);
BUG_ON(!bio);
@@ -190,12 +190,11 @@ static int do_erase(struct super_block *sb, u64 ofs, pgoff_t index,
{
struct logfs_super *super = logfs_super(sb);
struct bio *bio;
- struct request_queue *q = bdev_get_queue(sb->s_bdev);
- unsigned int max_pages = queue_max_hw_sectors(q) >> (PAGE_SHIFT - 9);
+ unsigned int max_pages;
int i;
- if (max_pages > BIO_MAX_PAGES)
- max_pages = BIO_MAX_PAGES;
+ max_pages = min(nr_pages, (size_t) bio_get_nr_vecs(super->s_bdev));
+
bio = bio_alloc(GFP_NOFS, max_pages);
BUG_ON(!bio);
diff --git a/fs/logfs/dir.c b/fs/logfs/dir.c
index bea5d1b9954..26e4a941532 100644
--- a/fs/logfs/dir.c
+++ b/fs/logfs/dir.c
@@ -349,7 +349,7 @@ static void logfs_set_name(struct logfs_disk_dentry *dd, struct qstr *name)
}
static struct dentry *logfs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
+ unsigned int flags)
{
struct page *page;
struct logfs_disk_dentry *dd;
@@ -502,7 +502,7 @@ static int logfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
}
static int logfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
- struct nameidata *nd)
+ bool excl)
{
struct inode *inode;
diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c
index a422f42238b..af49e2d6941 100644
--- a/fs/logfs/inode.c
+++ b/fs/logfs/inode.c
@@ -33,7 +33,7 @@
* are being written out - and waiting for GC to make progress, naturally.
*
* So we cannot just call iget() or some variant of it, but first have to check
- * wether the inode in question might be in I_FREEING state. Therefore we
+ * whether the inode in question might be in I_FREEING state. Therefore we
* maintain our own per-sb list of "almost deleted" inodes and check against
* that list first. Normally this should be at most 1-2 entries long.
*
@@ -156,10 +156,26 @@ static void __logfs_destroy_inode(struct inode *inode)
call_rcu(&inode->i_rcu, logfs_i_callback);
}
+static void __logfs_destroy_meta_inode(struct inode *inode)
+{
+ struct logfs_inode *li = logfs_inode(inode);
+ BUG_ON(li->li_block);
+ call_rcu(&inode->i_rcu, logfs_i_callback);
+}
+
static void logfs_destroy_inode(struct inode *inode)
{
struct logfs_inode *li = logfs_inode(inode);
+ if (inode->i_ino < LOGFS_RESERVED_INOS) {
+ /*
+ * The reserved inodes are never destroyed unless we are in
+ * unmont path.
+ */
+ __logfs_destroy_meta_inode(inode);
+ return;
+ }
+
BUG_ON(list_empty(&li->li_freeing_list));
spin_lock(&logfs_inode_lock);
li->li_refcount--;
@@ -192,8 +208,8 @@ static void logfs_init_inode(struct super_block *sb, struct inode *inode)
li->li_height = 0;
li->li_used_bytes = 0;
li->li_block = NULL;
- inode->i_uid = 0;
- inode->i_gid = 0;
+ i_uid_write(inode, 0);
+ i_gid_write(inode, 0);
inode->i_size = 0;
inode->i_blocks = 0;
inode->i_ctime = CURRENT_TIME;
@@ -373,8 +389,8 @@ static void logfs_put_super(struct super_block *sb)
{
struct logfs_super *super = logfs_super(sb);
/* kill the meta-inodes */
- iput(super->s_master_inode);
iput(super->s_segfile_inode);
+ iput(super->s_master_inode);
iput(super->s_mapping_inode);
}
@@ -401,5 +417,10 @@ int logfs_init_inode_cache(void)
void logfs_destroy_inode_cache(void)
{
+ /*
+ * Make sure all delayed rcu free inodes are flushed before we
+ * destroy cache.
+ */
+ rcu_barrier();
kmem_cache_destroy(logfs_inode_cache);
}
diff --git a/fs/logfs/journal.c b/fs/logfs/journal.c
index 1e1c369df22..2a09b8d7398 100644
--- a/fs/logfs/journal.c
+++ b/fs/logfs/journal.c
@@ -565,7 +565,7 @@ static void write_wbuf(struct super_block *sb, struct logfs_area *area,
index = ofs >> PAGE_SHIFT;
page_ofs = ofs & (PAGE_SIZE - 1);
- page = find_lock_page(mapping, index);
+ page = find_or_create_page(mapping, index, GFP_NOFS);
BUG_ON(!page);
memcpy(wbuf, page_address(page) + page_ofs, super->s_writesize);
unlock_page(page);
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index f1cb512c501..9a59cbade2f 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -119,8 +119,8 @@ static void logfs_disk_to_inode(struct logfs_disk_inode *di, struct inode*inode)
inode->i_mode = be16_to_cpu(di->di_mode);
li->li_height = di->di_height;
li->li_flags = be32_to_cpu(di->di_flags);
- inode->i_uid = be32_to_cpu(di->di_uid);
- inode->i_gid = be32_to_cpu(di->di_gid);
+ i_uid_write(inode, be32_to_cpu(di->di_uid));
+ i_gid_write(inode, be32_to_cpu(di->di_gid));
inode->i_size = be64_to_cpu(di->di_size);
logfs_set_blocks(inode, be64_to_cpu(di->di_used_bytes));
inode->i_atime = be64_to_timespec(di->di_atime);
@@ -156,8 +156,8 @@ static void logfs_inode_to_disk(struct inode *inode, struct logfs_disk_inode*di)
di->di_height = li->li_height;
di->di_pad = 0;
di->di_flags = cpu_to_be32(li->li_flags);
- di->di_uid = cpu_to_be32(inode->i_uid);
- di->di_gid = cpu_to_be32(inode->i_gid);
+ di->di_uid = cpu_to_be32(i_uid_read(inode));
+ di->di_gid = cpu_to_be32(i_gid_read(inode));
di->di_size = cpu_to_be64(i_size_read(inode));
di->di_used_bytes = cpu_to_be64(li->li_used_bytes);
di->di_atime = timespec_to_be64(inode->i_atime);
@@ -1887,9 +1887,15 @@ int logfs_truncate(struct inode *inode, u64 target)
logfs_put_wblocks(sb, NULL, 1);
}
- if (!err)
- err = vmtruncate(inode, target);
+ if (!err) {
+ err = inode_newsize_ok(inode, target);
+ if (err)
+ goto out;
+
+ truncate_setsize(inode, target);
+ }
+ out:
/* I don't trust error recovery yet. */
WARN_ON(err);
return err;
@@ -2189,7 +2195,6 @@ void logfs_evict_inode(struct inode *inode)
return;
}
- BUG_ON(inode->i_ino < LOGFS_RESERVED_INOS);
page = inode_to_page(inode);
BUG_ON(!page); /* FIXME: Use emergency page */
logfs_put_write_page(page);
diff --git a/fs/logfs/segment.c b/fs/logfs/segment.c
index e28d090c98d..038da099179 100644
--- a/fs/logfs/segment.c
+++ b/fs/logfs/segment.c
@@ -886,7 +886,7 @@ static struct logfs_area *alloc_area(struct super_block *sb)
static void map_invalidatepage(struct page *page, unsigned long l)
{
- BUG();
+ return;
}
static int map_releasepage(struct page *page, gfp_t g)
diff --git a/fs/logfs/super.c b/fs/logfs/super.c
index 97bca623d89..345c24b8a6f 100644
--- a/fs/logfs/super.c
+++ b/fs/logfs/super.c
@@ -519,7 +519,7 @@ static struct dentry *logfs_get_sb_device(struct logfs_super *super,
log_super("LogFS: Start mount %x\n", mount_count++);
err = -EINVAL;
- sb = sget(type, logfs_sb_test, logfs_sb_set, super);
+ sb = sget(type, logfs_sb_test, logfs_sb_set, flags | MS_NOATIME, super);
if (IS_ERR(sb)) {
super->s_devops->put_device(super);
kfree(super);
@@ -542,7 +542,6 @@ static struct dentry *logfs_get_sb_device(struct logfs_super *super,
sb->s_maxbytes = (1ull << 43) - 1;
sb->s_max_links = LOGFS_LINK_MAX;
sb->s_op = &logfs_super_operations;
- sb->s_flags = flags | MS_NOATIME;
err = logfs_read_sb(sb, sb->s_flags & MS_RDONLY);
if (err)