diff options
Diffstat (limited to 'fs/9p/vfs_file.c')
| -rw-r--r-- | fs/9p/vfs_file.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 2bedc6c94fc..e97c92bd6f1 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -59,9 +59,13 @@ int v9fs_file_open(struct inode *inode, struct file *file) struct p9_fid *fid; int omode; - P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p \n", inode, file); + P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p\n", inode, file); v9ses = v9fs_inode2v9ses(inode); - omode = v9fs_uflags2omode(file->f_flags, v9fs_proto_dotu(v9ses)); + if (v9fs_proto_dotl(v9ses)) + omode = file->f_flags; + else + omode = v9fs_uflags2omode(file->f_flags, + v9fs_proto_dotu(v9ses)); fid = file->private_data; if (!fid) { fid = v9fs_fid_clone(file->f_path.dentry); @@ -73,11 +77,12 @@ int v9fs_file_open(struct inode *inode, struct file *file) p9_client_clunk(fid); return err; } - if (omode & P9_OTRUNC) { + if (file->f_flags & O_TRUNC) { i_size_write(inode, 0); inode->i_blocks = 0; } - if ((file->f_flags & O_APPEND) && (!v9fs_proto_dotu(v9ses))) + if ((file->f_flags & O_APPEND) && + (!v9fs_proto_dotu(v9ses) && !v9fs_proto_dotl(v9ses))) generic_file_llseek(file, 0, SEEK_END); } @@ -139,7 +144,7 @@ ssize_t v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count, u64 offset) { - int n, total; + int n, total, size; struct p9_fid *fid = filp->private_data; P9_DPRINTK(P9_DEBUG_VFS, "fid %d offset %llu count %d\n", fid->fid, @@ -147,6 +152,7 @@ v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count, n = 0; total = 0; + size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ; do { n = p9_client_read(fid, data, udata, offset, count); if (n <= 0) @@ -160,7 +166,7 @@ v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count, offset += n; count -= n; total += n; - } while (count > 0 && n == (fid->clnt->msize - P9_IOHDRSZ)); + } while (count > 0 && n == size); if (n < 0) total = n; @@ -183,11 +189,13 @@ v9fs_file_read(struct file *filp, char __user *udata, size_t count, { int ret; struct p9_fid *fid; + size_t size; P9_DPRINTK(P9_DEBUG_VFS, "count %zu offset %lld\n", count, *offset); fid = filp->private_data; - if (count > (fid->clnt->msize - P9_IOHDRSZ)) + size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ; + if (count > size) ret = v9fs_file_readn(filp, NULL, udata, count, *offset); else ret = p9_client_read(fid, NULL, udata, *offset, count); @@ -224,9 +232,7 @@ v9fs_file_write(struct file *filp, const char __user * data, fid = filp->private_data; clnt = fid->clnt; - rsize = fid->iounit; - if (!rsize || rsize > clnt->msize-P9_IOHDRSZ) - rsize = clnt->msize - P9_IOHDRSZ; + rsize = fid->iounit ? fid->iounit : clnt->msize - P9_IOHDRSZ; do { if (count < rsize) |