diff options
author | Jakub Kicinski <kuba@kernel.org> | 2024-03-22 02:14:13 +0300 |
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committer | Jakub Kicinski <kuba@kernel.org> | 2024-03-22 02:15:08 +0300 |
commit | 537c2e91d3549e5d6020bb0576cf9b54a845255f (patch) | |
tree | c09e8a1b7d733cde19b0c72678c28fb2bc97ff6b /fs/smb/client/inode.c | |
parent | 237bb5f7f7f55ec5f773469a974c61a49c298625 (diff) | |
parent | cba9ffdb9913dfe6be29f049ce920ce451ce7cc4 (diff) | |
download | linux-537c2e91d3549e5d6020bb0576cf9b54a845255f.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'fs/smb/client/inode.c')
-rw-r--r-- | fs/smb/client/inode.c | 135 |
1 files changed, 40 insertions, 95 deletions
diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c index d02f8ba29cb5..8177ec59afee 100644 --- a/fs/smb/client/inode.c +++ b/fs/smb/client/inode.c @@ -26,6 +26,7 @@ #include "fs_context.h" #include "cifs_ioctl.h" #include "cached_dir.h" +#include "reparse.h" static void cifs_set_ops(struct inode *inode) { @@ -147,7 +148,8 @@ cifs_nlink_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) /* populate an inode with info from a cifs_fattr struct */ int -cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) +cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr, + bool from_readdir) { struct cifsInodeInfo *cifs_i = CIFS_I(inode); struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); @@ -199,7 +201,7 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) * Can't safely change the file size here if the client is writing to * it due to potential races. */ - if (is_size_safe_to_change(cifs_i, fattr->cf_eof)) { + if (is_size_safe_to_change(cifs_i, fattr->cf_eof, from_readdir)) { i_size_write(inode, fattr->cf_eof); /* @@ -368,7 +370,7 @@ static int update_inode_info(struct super_block *sb, CIFS_I(*inode)->time = 0; /* force reval */ return -ESTALE; } - return cifs_fattr_to_inode(*inode, fattr); + return cifs_fattr_to_inode(*inode, fattr, false); } #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY @@ -403,7 +405,7 @@ cifs_get_file_info_unix(struct file *filp) } else goto cifs_gfiunix_out; - rc = cifs_fattr_to_inode(inode, &fattr); + rc = cifs_fattr_to_inode(inode, &fattr, false); cifs_gfiunix_out: free_xid(xid); @@ -727,84 +729,6 @@ out_reparse: fattr->cf_mode, fattr->cf_uniqueid, fattr->cf_nlink); } -static inline dev_t nfs_mkdev(struct reparse_posix_data *buf) -{ - u64 v = le64_to_cpu(*(__le64 *)buf->DataBuffer); - - return MKDEV(v >> 32, v & 0xffffffff); -} - -bool cifs_reparse_point_to_fattr(struct cifs_sb_info *cifs_sb, - struct cifs_fattr *fattr, - struct cifs_open_info_data *data) -{ - struct reparse_posix_data *buf = data->reparse.posix; - u32 tag = data->reparse.tag; - - if (tag == IO_REPARSE_TAG_NFS && buf) { - switch (le64_to_cpu(buf->InodeType)) { - case NFS_SPECFILE_CHR: - fattr->cf_mode |= S_IFCHR; - fattr->cf_dtype = DT_CHR; - fattr->cf_rdev = nfs_mkdev(buf); - break; - case NFS_SPECFILE_BLK: - fattr->cf_mode |= S_IFBLK; - fattr->cf_dtype = DT_BLK; - fattr->cf_rdev = nfs_mkdev(buf); - break; - case NFS_SPECFILE_FIFO: - fattr->cf_mode |= S_IFIFO; - fattr->cf_dtype = DT_FIFO; - break; - case NFS_SPECFILE_SOCK: - fattr->cf_mode |= S_IFSOCK; - fattr->cf_dtype = DT_SOCK; - break; - case NFS_SPECFILE_LNK: - fattr->cf_mode |= S_IFLNK; - fattr->cf_dtype = DT_LNK; - break; - default: - WARN_ON_ONCE(1); - return false; - } - return true; - } - - switch (tag) { - case IO_REPARSE_TAG_LX_SYMLINK: - fattr->cf_mode |= S_IFLNK; - fattr->cf_dtype = DT_LNK; - break; - case IO_REPARSE_TAG_LX_FIFO: - fattr->cf_mode |= S_IFIFO; - fattr->cf_dtype = DT_FIFO; - break; - case IO_REPARSE_TAG_AF_UNIX: - fattr->cf_mode |= S_IFSOCK; - fattr->cf_dtype = DT_SOCK; - break; - case IO_REPARSE_TAG_LX_CHR: - fattr->cf_mode |= S_IFCHR; - fattr->cf_dtype = DT_CHR; - break; - case IO_REPARSE_TAG_LX_BLK: - fattr->cf_mode |= S_IFBLK; - fattr->cf_dtype = DT_BLK; - break; - case 0: /* SMB1 symlink */ - case IO_REPARSE_TAG_SYMLINK: - case IO_REPARSE_TAG_NFS: - fattr->cf_mode |= S_IFLNK; - fattr->cf_dtype = DT_LNK; - break; - default: - return false; - } - return true; -} - static void cifs_open_info_to_fattr(struct cifs_fattr *fattr, struct cifs_open_info_data *data, struct super_block *sb) @@ -835,6 +759,8 @@ static void cifs_open_info_to_fattr(struct cifs_fattr *fattr, fattr->cf_bytes = le64_to_cpu(info->AllocationSize); fattr->cf_createtime = le64_to_cpu(info->CreationTime); fattr->cf_nlink = le32_to_cpu(info->NumberOfLinks); + fattr->cf_uid = cifs_sb->ctx->linux_uid; + fattr->cf_gid = cifs_sb->ctx->linux_gid; fattr->cf_mode = cifs_sb->ctx->file_mode; if (cifs_open_data_reparse(data) && @@ -877,9 +803,6 @@ out_reparse: fattr->cf_symlink_target = data->symlink_target; data->symlink_target = NULL; } - - fattr->cf_uid = cifs_sb->ctx->linux_uid; - fattr->cf_gid = cifs_sb->ctx->linux_gid; } static int @@ -893,6 +816,9 @@ cifs_get_file_info(struct file *filp) struct cifsFileInfo *cfile = filp->private_data; struct cifs_tcon *tcon = tlink_tcon(cfile->tlink); struct TCP_Server_Info *server = tcon->ses->server; + struct dentry *dentry = filp->f_path.dentry; + void *page = alloc_dentry_path(); + const unsigned char *path; if (!server->ops->query_file_info) return -ENOSYS; @@ -907,7 +833,14 @@ cifs_get_file_info(struct file *filp) data.symlink = true; data.reparse.tag = IO_REPARSE_TAG_SYMLINK; } + path = build_path_from_dentry(dentry, page); + if (IS_ERR(path)) { + free_dentry_path(page); + return PTR_ERR(path); + } cifs_open_info_to_fattr(&fattr, &data, inode->i_sb); + if (fattr.cf_flags & CIFS_FATTR_DELETE_PENDING) + cifs_mark_open_handles_for_deleted_file(inode, path); break; case -EREMOTE: cifs_create_junction_fattr(&fattr, inode->i_sb); @@ -934,9 +867,10 @@ cifs_get_file_info(struct file *filp) fattr.cf_uniqueid = CIFS_I(inode)->uniqueid; fattr.cf_flags |= CIFS_FATTR_NEED_REVAL; /* if filetype is different, return error */ - rc = cifs_fattr_to_inode(inode, &fattr); + rc = cifs_fattr_to_inode(inode, &fattr, false); cgfi_exit: cifs_free_open_info(&data); + free_dentry_path(page); free_xid(xid); return rc; } @@ -1075,6 +1009,7 @@ static int reparse_info_to_fattr(struct cifs_open_info_data *data, struct kvec rsp_iov, *iov = NULL; int rsp_buftype = CIFS_NO_BUFFER; u32 tag = data->reparse.tag; + struct inode *inode = NULL; int rc = 0; if (!tag && server->ops->query_reparse_point) { @@ -1114,8 +1049,12 @@ static int reparse_info_to_fattr(struct cifs_open_info_data *data, if (tcon->posix_extensions) smb311_posix_info_to_fattr(fattr, data, sb); - else + else { cifs_open_info_to_fattr(fattr, data, sb); + inode = cifs_iget(sb, fattr); + if (inode && fattr->cf_flags & CIFS_FATTR_DELETE_PENDING) + cifs_mark_open_handles_for_deleted_file(inode, full_path); + } out: fattr->cf_cifstag = data->reparse.tag; free_rsp_buf(rsp_buftype, rsp_iov.iov_base); @@ -1170,6 +1109,8 @@ static int cifs_get_fattr(struct cifs_open_info_data *data, full_path, fattr); } else { cifs_open_info_to_fattr(fattr, data, sb); + if (fattr->cf_flags & CIFS_FATTR_DELETE_PENDING) + cifs_mark_open_handles_for_deleted_file(*inode, full_path); } break; case -EREMOTE: @@ -1491,7 +1432,7 @@ retry_iget5_locked: } /* can't fail - see cifs_find_inode() */ - cifs_fattr_to_inode(inode, fattr); + cifs_fattr_to_inode(inode, fattr, false); if (sb->s_flags & SB_NOATIME) inode->i_flags |= S_NOATIME | S_NOCMTIME; if (inode->i_state & I_NEW) { @@ -1846,20 +1787,24 @@ retry_std_delete: goto psx_del_no_retry; } - rc = server->ops->unlink(xid, tcon, full_path, cifs_sb); + rc = server->ops->unlink(xid, tcon, full_path, cifs_sb, dentry); psx_del_no_retry: if (!rc) { - if (inode) + if (inode) { + cifs_mark_open_handles_for_deleted_file(inode, full_path); cifs_drop_nlink(inode); + } } else if (rc == -ENOENT) { d_drop(dentry); } else if (rc == -EBUSY) { if (server->ops->rename_pending_delete) { rc = server->ops->rename_pending_delete(full_path, dentry, xid); - if (rc == 0) + if (rc == 0) { + cifs_mark_open_handles_for_deleted_file(inode, full_path); cifs_drop_nlink(inode); + } } } else if ((rc == -EACCES) && (dosattr == 0) && inode) { attrs = kzalloc(sizeof(*attrs), GFP_KERNEL); @@ -2797,7 +2742,7 @@ void cifs_setsize(struct inode *inode, loff_t offset) static int cifs_set_file_size(struct inode *inode, struct iattr *attrs, - unsigned int xid, const char *full_path) + unsigned int xid, const char *full_path, struct dentry *dentry) { int rc; struct cifsFileInfo *open_file; @@ -2848,7 +2793,7 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs, */ if (server->ops->set_path_size) rc = server->ops->set_path_size(xid, tcon, full_path, - attrs->ia_size, cifs_sb, false); + attrs->ia_size, cifs_sb, false, dentry); else rc = -ENOSYS; cifs_dbg(FYI, "SetEOF by path (setattrs) rc = %d\n", rc); @@ -2938,7 +2883,7 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs) rc = 0; if (attrs->ia_valid & ATTR_SIZE) { - rc = cifs_set_file_size(inode, attrs, xid, full_path); + rc = cifs_set_file_size(inode, attrs, xid, full_path, direntry); if (rc != 0) goto out; } @@ -3105,7 +3050,7 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs) } if (attrs->ia_valid & ATTR_SIZE) { - rc = cifs_set_file_size(inode, attrs, xid, full_path); + rc = cifs_set_file_size(inode, attrs, xid, full_path, direntry); if (rc != 0) goto cifs_setattr_exit; } |