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author | Jiri Kosina <jkosina@suse.cz> | 2023-11-01 02:07:35 +0300 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2023-11-01 02:07:35 +0300 |
commit | 20cd569d7ee8fce24e8753f0f43af6c420557b1f (patch) | |
tree | f559cfda594846795aa51c99d96f92d8c912851a /fs/fuse/file.c | |
parent | 62cc9c3cb3ec1bf31cc116146185ed97b450836a (diff) | |
parent | eeebfe6259ba2d5b0980eb7b0df384eb77e9e4f5 (diff) | |
download | linux-20cd569d7ee8fce24e8753f0f43af6c420557b1f.tar.xz |
Merge branch 'for-6.7/config_pm' into for-linus
- #ifdef CONFIG_PM removal from HID code (Thomas Weißschuh)
Diffstat (limited to 'fs/fuse/file.c')
-rw-r--r-- | fs/fuse/file.c | 115 |
1 files changed, 49 insertions, 66 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c index bc4115288eec..1cdb6327511e 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -19,7 +19,6 @@ #include <linux/uio.h> #include <linux/fs.h> #include <linux/filelock.h> -#include <linux/file.h> static int fuse_send_open(struct fuse_mount *fm, u64 nodeid, unsigned int open_flags, int opcode, @@ -479,36 +478,48 @@ static void fuse_sync_writes(struct inode *inode) fuse_release_nowrite(inode); } -struct fuse_flush_args { - struct fuse_args args; - struct fuse_flush_in inarg; - struct work_struct work; - struct file *file; -}; - -static int fuse_do_flush(struct fuse_flush_args *fa) +static int fuse_flush(struct file *file, fl_owner_t id) { - int err; - struct inode *inode = file_inode(fa->file); + struct inode *inode = file_inode(file); struct fuse_mount *fm = get_fuse_mount(inode); + struct fuse_file *ff = file->private_data; + struct fuse_flush_in inarg; + FUSE_ARGS(args); + int err; + + if (fuse_is_bad(inode)) + return -EIO; + + if (ff->open_flags & FOPEN_NOFLUSH && !fm->fc->writeback_cache) + return 0; err = write_inode_now(inode, 1); if (err) - goto out; + return err; inode_lock(inode); fuse_sync_writes(inode); inode_unlock(inode); - err = filemap_check_errors(fa->file->f_mapping); + err = filemap_check_errors(file->f_mapping); if (err) - goto out; + return err; err = 0; if (fm->fc->no_flush) goto inval_attr_out; - err = fuse_simple_request(fm, &fa->args); + memset(&inarg, 0, sizeof(inarg)); + inarg.fh = ff->fh; + inarg.lock_owner = fuse_lock_owner_id(fm->fc, id); + args.opcode = FUSE_FLUSH; + args.nodeid = get_node_id(inode); + args.in_numargs = 1; + args.in_args[0].size = sizeof(inarg); + args.in_args[0].value = &inarg; + args.force = true; + + err = fuse_simple_request(fm, &args); if (err == -ENOSYS) { fm->fc->no_flush = 1; err = 0; @@ -521,57 +532,9 @@ inval_attr_out: */ if (!err && fm->fc->writeback_cache) fuse_invalidate_attr_mask(inode, STATX_BLOCKS); - -out: - fput(fa->file); - kfree(fa); return err; } -static void fuse_flush_async(struct work_struct *work) -{ - struct fuse_flush_args *fa = container_of(work, typeof(*fa), work); - - fuse_do_flush(fa); -} - -static int fuse_flush(struct file *file, fl_owner_t id) -{ - struct fuse_flush_args *fa; - struct inode *inode = file_inode(file); - struct fuse_mount *fm = get_fuse_mount(inode); - struct fuse_file *ff = file->private_data; - - if (fuse_is_bad(inode)) - return -EIO; - - if (ff->open_flags & FOPEN_NOFLUSH && !fm->fc->writeback_cache) - return 0; - - fa = kzalloc(sizeof(*fa), GFP_KERNEL); - if (!fa) - return -ENOMEM; - - fa->inarg.fh = ff->fh; - fa->inarg.lock_owner = fuse_lock_owner_id(fm->fc, id); - fa->args.opcode = FUSE_FLUSH; - fa->args.nodeid = get_node_id(inode); - fa->args.in_numargs = 1; - fa->args.in_args[0].size = sizeof(fa->inarg); - fa->args.in_args[0].value = &fa->inarg; - fa->args.force = true; - fa->file = get_file(file); - - /* Don't wait if the task is exiting */ - if (current->flags & PF_EXITING) { - INIT_WORK(&fa->work, fuse_flush_async); - schedule_work(&fa->work); - return 0; - } - - return fuse_do_flush(fa); -} - int fuse_fsync_common(struct file *file, loff_t start, loff_t end, int datasync, int opcode) { @@ -1465,7 +1428,8 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter, int write = flags & FUSE_DIO_WRITE; int cuse = flags & FUSE_DIO_CUSE; struct file *file = io->iocb->ki_filp; - struct inode *inode = file->f_mapping->host; + struct address_space *mapping = file->f_mapping; + struct inode *inode = mapping->host; struct fuse_file *ff = file->private_data; struct fuse_conn *fc = ff->fm->fc; size_t nmax = write ? fc->max_write : fc->max_read; @@ -1477,12 +1441,20 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter, int err = 0; struct fuse_io_args *ia; unsigned int max_pages; + bool fopen_direct_io = ff->open_flags & FOPEN_DIRECT_IO; max_pages = iov_iter_npages(iter, fc->max_pages); ia = fuse_io_alloc(io, max_pages); if (!ia) return -ENOMEM; + if (fopen_direct_io && fc->direct_io_relax) { + res = filemap_write_and_wait_range(mapping, pos, pos + count - 1); + if (res) { + fuse_io_free(ia); + return res; + } + } if (!cuse && fuse_range_is_writeback(inode, idx_from, idx_to)) { if (!write) inode_lock(inode); @@ -1491,6 +1463,14 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter, inode_unlock(inode); } + if (fopen_direct_io && write) { + res = invalidate_inode_pages2_range(mapping, idx_from, idx_to); + if (res) { + fuse_io_free(ia); + return res; + } + } + io->should_dirty = !write && user_backed_iter(iter); while (count) { ssize_t nres; @@ -2478,14 +2458,17 @@ static const struct vm_operations_struct fuse_file_vm_ops = { static int fuse_file_mmap(struct file *file, struct vm_area_struct *vma) { struct fuse_file *ff = file->private_data; + struct fuse_conn *fc = ff->fm->fc; /* DAX mmap is superior to direct_io mmap */ if (FUSE_IS_DAX(file_inode(file))) return fuse_dax_mmap(file, vma); if (ff->open_flags & FOPEN_DIRECT_IO) { - /* Can't provide the coherency needed for MAP_SHARED */ - if (vma->vm_flags & VM_MAYSHARE) + /* Can't provide the coherency needed for MAP_SHARED + * if FUSE_DIRECT_IO_RELAX isn't set. + */ + if ((vma->vm_flags & VM_MAYSHARE) && !fc->direct_io_relax) return -ENODEV; invalidate_inode_pages2(file->f_mapping); |