diff options
author | Sahil Kang <sahil.kang@asilaycomputing.com> | 2022-01-16 05:48:47 +0300 |
---|---|---|
committer | David Sterba <dsterba@suse.com> | 2022-03-14 15:13:46 +0300 |
commit | 9ad1230533efb6d9f5865a351eca8f0617cf5b74 (patch) | |
tree | 6945cc0186948e4406afa74c05070f32158abe3a /fs/btrfs/ioctl.c | |
parent | ff37c89f94be14b0e22a532d1e6d57187bfd5bb8 (diff) | |
download | linux-9ad1230533efb6d9f5865a351eca8f0617cf5b74.tar.xz |
btrfs: reuse existing inode from btrfs_ioctl
btrfs_ioctl extracts inode from file so we can pass that into the
callbacks.
Signed-off-by: Sahil Kang <sahil.kang@asilaycomputing.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ioctl.c')
-rw-r--r-- | fs/btrfs/ioctl.c | 41 |
1 files changed, 16 insertions, 25 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 70a08ef9c5ae..dbb0a8dad770 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2227,10 +2227,9 @@ free_args: return ret; } -static noinline int btrfs_ioctl_subvol_getflags(struct file *file, +static noinline int btrfs_ioctl_subvol_getflags(struct inode *inode, void __user *arg) { - struct inode *inode = file_inode(file); struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; int ret = 0; @@ -2560,12 +2559,11 @@ err: return ret; } -static noinline int btrfs_ioctl_tree_search(struct file *file, - void __user *argp) +static noinline int btrfs_ioctl_tree_search(struct inode *inode, + void __user *argp) { struct btrfs_ioctl_search_args __user *uargs; struct btrfs_ioctl_search_key sk; - struct inode *inode; int ret; size_t buf_size; @@ -2579,7 +2577,6 @@ static noinline int btrfs_ioctl_tree_search(struct file *file, buf_size = sizeof(uargs->buf); - inode = file_inode(file); ret = search_ioctl(inode, &sk, &buf_size, uargs->buf); /* @@ -2594,12 +2591,11 @@ static noinline int btrfs_ioctl_tree_search(struct file *file, return ret; } -static noinline int btrfs_ioctl_tree_search_v2(struct file *file, +static noinline int btrfs_ioctl_tree_search_v2(struct inode *inode, void __user *argp) { struct btrfs_ioctl_search_args_v2 __user *uarg; struct btrfs_ioctl_search_args_v2 args; - struct inode *inode; int ret; size_t buf_size; const size_t buf_limit = SZ_16M; @@ -2618,7 +2614,6 @@ static noinline int btrfs_ioctl_tree_search_v2(struct file *file, if (buf_size > buf_limit) buf_size = buf_limit; - inode = file_inode(file); ret = search_ioctl(inode, &args.key, &buf_size, (char __user *)(&uarg->buf[0])); if (ret == 0 && copy_to_user(&uarg->key, &args.key, sizeof(args.key))) @@ -2952,7 +2947,7 @@ static int btrfs_ioctl_ino_lookup_user(struct file *file, void __user *argp) } /* Get the subvolume information in BTRFS_ROOT_ITEM and BTRFS_ROOT_BACKREF */ -static int btrfs_ioctl_get_subvol_info(struct file *file, void __user *argp) +static int btrfs_ioctl_get_subvol_info(struct inode *inode, void __user *argp) { struct btrfs_ioctl_get_subvol_info_args *subvol_info; struct btrfs_fs_info *fs_info; @@ -2964,7 +2959,6 @@ static int btrfs_ioctl_get_subvol_info(struct file *file, void __user *argp) struct extent_buffer *leaf; unsigned long item_off; unsigned long item_len; - struct inode *inode; int slot; int ret = 0; @@ -2978,7 +2972,6 @@ static int btrfs_ioctl_get_subvol_info(struct file *file, void __user *argp) return -ENOMEM; } - inode = file_inode(file); fs_info = BTRFS_I(inode)->root->fs_info; /* Get root_item of inode's subvolume */ @@ -3072,12 +3065,11 @@ out_free: * Return ROOT_REF information of the subvolume containing this inode * except the subvolume name. */ -static int btrfs_ioctl_get_subvol_rootref(struct btrfs_root *subvol_root, +static int btrfs_ioctl_get_subvol_rootref(struct btrfs_root *root, void __user *argp) { struct btrfs_ioctl_get_subvol_rootref_args *rootrefs; struct btrfs_root_ref *rref; - struct btrfs_root *root; struct btrfs_path *path; struct btrfs_key key; struct extent_buffer *leaf; @@ -3096,14 +3088,13 @@ static int btrfs_ioctl_get_subvol_rootref(struct btrfs_root *subvol_root, return PTR_ERR(rootrefs); } - root = subvol_root->fs_info->tree_root; - objectid = subvol_root->root_key.objectid; - + objectid = root->root_key.objectid; key.objectid = objectid; key.type = BTRFS_ROOT_REF_KEY; key.offset = rootrefs->min_treeid; found = 0; + root = root->fs_info->tree_root; ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); if (ret < 0) { goto out; @@ -5143,7 +5134,7 @@ out_drop_write: return ret; } -static int _btrfs_ioctl_send(struct file *file, void __user *argp, bool compat) +static int _btrfs_ioctl_send(struct inode *inode, void __user *argp, bool compat) { struct btrfs_ioctl_send_args *arg; int ret; @@ -5173,7 +5164,7 @@ static int _btrfs_ioctl_send(struct file *file, void __user *argp, bool compat) if (IS_ERR(arg)) return PTR_ERR(arg); } - ret = btrfs_ioctl_send(file, arg); + ret = btrfs_ioctl_send(inode, arg); kfree(arg); return ret; } @@ -5208,7 +5199,7 @@ long btrfs_ioctl(struct file *file, unsigned int case BTRFS_IOC_SNAP_DESTROY_V2: return btrfs_ioctl_snap_destroy(file, argp, true); case BTRFS_IOC_SUBVOL_GETFLAGS: - return btrfs_ioctl_subvol_getflags(file, argp); + return btrfs_ioctl_subvol_getflags(inode, argp); case BTRFS_IOC_SUBVOL_SETFLAGS: return btrfs_ioctl_subvol_setflags(file, argp); case BTRFS_IOC_DEFAULT_SUBVOL: @@ -5232,9 +5223,9 @@ long btrfs_ioctl(struct file *file, unsigned int case BTRFS_IOC_BALANCE: return btrfs_ioctl_balance(file, NULL); case BTRFS_IOC_TREE_SEARCH: - return btrfs_ioctl_tree_search(file, argp); + return btrfs_ioctl_tree_search(inode, argp); case BTRFS_IOC_TREE_SEARCH_V2: - return btrfs_ioctl_tree_search_v2(file, argp); + return btrfs_ioctl_tree_search_v2(inode, argp); case BTRFS_IOC_INO_LOOKUP: return btrfs_ioctl_ino_lookup(root, argp); case BTRFS_IOC_INO_PATHS: @@ -5283,10 +5274,10 @@ long btrfs_ioctl(struct file *file, unsigned int return btrfs_ioctl_set_received_subvol_32(file, argp); #endif case BTRFS_IOC_SEND: - return _btrfs_ioctl_send(file, argp, false); + return _btrfs_ioctl_send(inode, argp, false); #if defined(CONFIG_64BIT) && defined(CONFIG_COMPAT) case BTRFS_IOC_SEND_32: - return _btrfs_ioctl_send(file, argp, true); + return _btrfs_ioctl_send(inode, argp, true); #endif case BTRFS_IOC_GET_DEV_STATS: return btrfs_ioctl_get_dev_stats(fs_info, argp); @@ -5313,7 +5304,7 @@ long btrfs_ioctl(struct file *file, unsigned int case BTRFS_IOC_SET_FEATURES: return btrfs_ioctl_set_features(file, argp); case BTRFS_IOC_GET_SUBVOL_INFO: - return btrfs_ioctl_get_subvol_info(file, argp); + return btrfs_ioctl_get_subvol_info(inode, argp); case BTRFS_IOC_GET_SUBVOL_ROOTREF: return btrfs_ioctl_get_subvol_rootref(root, argp); case BTRFS_IOC_INO_LOOKUP_USER: |