Hi Chris, Those bugs are small, and the fixes are simple and straitforward. You can pull from: git://repo.or.cz/linux-btrfs-devel.git for-chris Li Zefan (2): Btrfs: Check if btrfs_next_leaf() returns error in btrfs_listxattr() Btrfs: Check if btrfs_next_leaf() returns error in btrfs_real_readdir() Miao Xie (2): Btrfs: Fix incorrect inode nlink in btrfs_link() Btrfs: Check validity before setting an acl --- fs/btrfs/acl.c | 9 +++++---- fs/btrfs/inode.c | 34 +++++++++++++--------------------- fs/btrfs/xattr.c | 33 ++++++++++++--------------------- 3 files changed, 30 insertions(+), 46 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Li Zefan
2011-Apr-13 07:42 UTC
[PATCH 1/4] Btrfs: Check if btrfs_next_leaf() returns error in btrfs_listxattr()
btrfs_next_leaf() can return -errno, and we should propagate it to userspace. This also simplifies how we walk the btree path. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> --- fs/btrfs/xattr.c | 33 ++++++++++++--------------------- 1 files changed, 12 insertions(+), 21 deletions(-) diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c index e5d22f2..07b9bc3 100644 --- a/fs/btrfs/xattr.c +++ b/fs/btrfs/xattr.c @@ -180,11 +180,10 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size) struct btrfs_path *path; struct extent_buffer *leaf; struct btrfs_dir_item *di; - int ret = 0, slot, advance; + int ret = 0, slot; size_t total_size = 0, size_left = size; unsigned long name_ptr; size_t name_len; - u32 nritems; /* * ok we want all objects associated with this id. @@ -204,34 +203,24 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size) ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); if (ret < 0) goto err; - advance = 0; + while (1) { leaf = path->nodes[0]; - nritems = btrfs_header_nritems(leaf); slot = path->slots[0]; /* this is where we start walking through the path */ - if (advance || slot >= nritems) { + if (slot >= btrfs_header_nritems(leaf)) { /* * if we''ve reached the last slot in this leaf we need * to go to the next leaf and reset everything */ - if (slot >= nritems-1) { - ret = btrfs_next_leaf(root, path); - if (ret) - break; - leaf = path->nodes[0]; - nritems = btrfs_header_nritems(leaf); - slot = path->slots[0]; - } else { - /* - * just walking through the slots on this leaf - */ - slot++; - path->slots[0]++; - } + ret = btrfs_next_leaf(root, path); + if (ret < 0) + goto err; + else if (ret > 0) + break; + continue; } - advance = 1; btrfs_item_key_to_cpu(leaf, &found_key, slot); @@ -250,7 +239,7 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size) /* we are just looking for how big our buffer needs to be */ if (!size) - continue; + goto next; if (!buffer || (name_len + 1) > size_left) { ret = -ERANGE; @@ -263,6 +252,8 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size) size_left -= name_len + 1; buffer += name_len + 1; +next: + path->slots[0]++; } ret = total_size; -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Li Zefan
2011-Apr-13 07:42 UTC
[PATCH 2/4] Btrfs: Check if btrfs_next_leaf() returns error in btrfs_real_readdir()
btrfs_next_leaf() can return -errno, and we should propagate it to userspace. This also simplifies how we walk the btree path. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> --- fs/btrfs/inode.c | 28 ++++++++++------------------ 1 files changed, 10 insertions(+), 18 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 55a6a0b..b9f7f52 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4221,10 +4221,8 @@ static int btrfs_real_readdir(struct file *filp, void *dirent, struct btrfs_key found_key; struct btrfs_path *path; int ret; - u32 nritems; struct extent_buffer *leaf; int slot; - int advance; unsigned char d_type; int over = 0; u32 di_cur; @@ -4267,27 +4265,19 @@ static int btrfs_real_readdir(struct file *filp, void *dirent, ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); if (ret < 0) goto err; - advance = 0; while (1) { leaf = path->nodes[0]; - nritems = btrfs_header_nritems(leaf); slot = path->slots[0]; - if (advance || slot >= nritems) { - if (slot >= nritems - 1) { - ret = btrfs_next_leaf(root, path); - if (ret) - break; - leaf = path->nodes[0]; - nritems = btrfs_header_nritems(leaf); - slot = path->slots[0]; - } else { - slot++; - path->slots[0]++; - } + if (slot >= btrfs_header_nritems(leaf)) { + ret = btrfs_next_leaf(root, path); + if (ret < 0) + goto err; + else if (ret > 0) + break; + continue; } - advance = 1; item = btrfs_item_nr(leaf, slot); btrfs_item_key_to_cpu(leaf, &found_key, slot); @@ -4296,7 +4286,7 @@ static int btrfs_real_readdir(struct file *filp, void *dirent, if (btrfs_key_type(&found_key) != key_type) break; if (found_key.offset < filp->f_pos) - continue; + goto next; filp->f_pos = found_key.offset; @@ -4349,6 +4339,8 @@ skip: di_cur += di_len; di = (struct btrfs_dir_item *)((char *)di + di_len); } +next: + path->slots[0]++; } /* Reached end of directory/root. Bump pos past the last item. */ -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Li Zefan
2011-Apr-13 07:43 UTC
[PATCH 3/4] Btrfs: Fix incorrect inode nlink in btrfs_link()
From: Miao Xie <miaox@cn.fujitsu.com> Link count of the inode is not decreased if btrfs_set_inode_index() fails. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Singed-off-by: Li Zefan <lizf@cn.fujitsu.com> --- fs/btrfs/inode.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index b9f7f52..a4157cf 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4846,9 +4846,6 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir, if (inode->i_nlink == ~0U) return -EMLINK; - btrfs_inc_nlink(inode); - inode->i_ctime = CURRENT_TIME; - err = btrfs_set_inode_index(dir, &index); if (err) goto fail; @@ -4864,6 +4861,9 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir, goto fail; } + btrfs_inc_nlink(inode); + inode->i_ctime = CURRENT_TIME; + btrfs_set_trans_block_group(trans, dir); ihold(inode); -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
From: Miao Xie <miaox@cn.fujitsu.com> Call posix_acl_valid() to check if an acl is valid or not. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> --- fs/btrfs/acl.c | 9 +++++---- 1 files changed, 5 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 9c94934..a892bc2 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -178,16 +178,17 @@ static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name, if (value) { acl = posix_acl_from_xattr(value, size); - if (acl == NULL) { - value = NULL; - size = 0; + if (acl) { + ret = posix_acl_valid(acl); + if (ret) + goto out; } else if (IS_ERR(acl)) { return PTR_ERR(acl); } } ret = btrfs_set_acl(NULL, dentry->d_inode, acl, type); - +out: posix_acl_release(acl); return ret; -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Excerpts from Li Zefan''s message of 2011-04-13 03:42:01 -0400:> Hi Chris, > > Those bugs are small, and the fixes are simple and straitforward. > > You can pull from: > > git://repo.or.cz/linux-btrfs-devel.git for-chrisThanks these are now in my master branch. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html