From 728b9dd80074bedef6136b6acf5cb86d707172ea Mon Sep 17 00:00:00 2001 From: behlendo Date: Fri, 4 Apr 2008 17:08:12 +0000 Subject: [PATCH] - Fix write-only behavior in vn-open() - Ensure we have at least 1 write-only splat test - Fix return codes for vn_* Solaris does not use negative return codes in the kernel. So linux errno's must be inverted. git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@67 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c --- modules/spl/spl-vnode.c | 42 ++++++++++++++++++------------------ modules/splat/splat-atomic.c | 2 +- modules/splat/splat-vnode.c | 2 +- 3 files changed, 23 insertions(+), 23 deletions(-) diff --git a/modules/spl/spl-vnode.c b/modules/spl/spl-vnode.c index 401c6e0e8..10b227761 100644 --- a/modules/spl/spl-vnode.c +++ b/modules/spl/spl-vnode.c @@ -52,7 +52,7 @@ vn_alloc(int flag) vp->v_type = 0; } - return (vp); + return vp; } /* vn_alloc() */ EXPORT_SYMBOL(vn_alloc); @@ -69,9 +69,10 @@ vn_open(const char *path, uio_seg_t seg, int flags, int mode, { struct file *fp; struct kstat stat; - int rc, saved_umask, flags_rw; + int rc, saved_umask; vnode_t *vp; + BUG_ON(!(flags & (FWRITE | FREAD))); BUG_ON(seg != UIO_SYSSPACE); BUG_ON(!vpp); *vpp = NULL; @@ -79,13 +80,12 @@ vn_open(const char *path, uio_seg_t seg, int flags, int mode, if (!(flags & FCREAT) && (flags & FWRITE)) flags |= FEXCL; - flags_rw = flags & (FWRITE | FREAD); - flags &= ~(FWRITE | FREAD); - switch (flags_rw) { - case FWRITE: flags |= O_WRONLY; - case FREAD: flags |= O_RDONLY; - case (FWRITE | FREAD): flags |= O_RDWR; - } + /* Note for filp_open() the two low bits must be remapped to mean: + * 01 - read-only -> 00 read-only + * 10 - write-only -> 01 write-only + * 11 - read-write -> 10 read-write + */ + flags--; if (flags & FCREAT) saved_umask = xchg(¤t->fs->umask, 0); @@ -96,18 +96,18 @@ vn_open(const char *path, uio_seg_t seg, int flags, int mode, (void)xchg(¤t->fs->umask, saved_umask); if (IS_ERR(fp)) - return PTR_ERR(fp); + return -PTR_ERR(fp); rc = vfs_getattr(fp->f_vfsmnt, fp->f_dentry, &stat); if (rc) { filp_close(fp, 0); - return rc; + return -rc; } vp = vn_alloc(KM_SLEEP); if (!vp) { filp_close(fp, 0); - return -ENOMEM; + return ENOMEM; } mutex_enter(&vp->v_lock); @@ -131,7 +131,7 @@ vn_openat(const char *path, uio_seg_t seg, int flags, int mode, realpath = kmalloc(strlen(path) + 2, GFP_KERNEL); if (!realpath) - return -ENOMEM; + return ENOMEM; sprintf(realpath, "/%s", path); rc = vn_open(realpath, seg, flags, mode, vpp, x1, x2); @@ -175,13 +175,13 @@ vn_rdwr(uio_rw_t uio, vnode_t *vp, void *addr, ssize_t len, offset_t off, set_fs(saved_fs); if (rc < 0) - return rc; + return -rc; if (residp) { *residp = len - rc; } else { if (rc != len) - return -EIO; + return EIO; } return 0; @@ -199,7 +199,7 @@ vn_close(vnode_t *vp, int flags, int x1, int x2, void *x3, void *x4) rc = filp_close(vp->v_file, 0); vn_free(vp); - return rc; + return -rc; } /* vn_close() */ EXPORT_SYMBOL(vn_close); @@ -248,7 +248,7 @@ exit2: exit1: path_release(&nd); exit: - return rc; + return -rc; slashes: rc = !dentry->d_inode ? -ENOENT : @@ -338,7 +338,7 @@ exit2: exit1: path_release(&oldnd); exit: - return rc; + return -rc; } EXPORT_SYMBOL(vn_rename); @@ -357,7 +357,7 @@ vn_getattr(vnode_t *vp, vattr_t *vap, int flags, void *x3, void *x4) rc = vfs_getattr(fp->f_vfsmnt, fp->f_dentry, &stat); if (rc) - return rc; + return -rc; vap->va_type = vn_get_sol_type(stat.mode); vap->va_mode = stat.mode; @@ -377,7 +377,7 @@ vn_getattr(vnode_t *vp, vattr_t *vap, int flags, void *x3, void *x4) vap->va_rdev = stat.rdev; vap->va_blocks = stat.blocks; - return rc; + return 0; } EXPORT_SYMBOL(vn_getattr); @@ -391,7 +391,7 @@ int vn_fsync(vnode_t *vp, int flags, void *x3, void *x4) if (flags & FDSYNC) datasync = 1; - return file_fsync(vp->v_file, vp->v_file->f_dentry, datasync); + return -file_fsync(vp->v_file, vp->v_file->f_dentry, datasync); } /* vn_fsync() */ EXPORT_SYMBOL(vn_fsync); diff --git a/modules/splat/splat-atomic.c b/modules/splat/splat-atomic.c index c170cc05e..43876d78a 100644 --- a/modules/splat/splat-atomic.c +++ b/modules/splat/splat-atomic.c @@ -95,8 +95,8 @@ splat_atomic_work(void *priv) (long unsigned)ap->ap_atomic, (long unsigned)ap->ap_atomic_exited); - thread_exit(); wake_up(&ap->ap_waitq); + thread_exit(); } static int diff --git a/modules/splat/splat-vnode.c b/modules/splat/splat-vnode.c index 8578ea20a..c8368b5cb 100644 --- a/modules/splat/splat-vnode.c +++ b/modules/splat/splat-vnode.c @@ -287,7 +287,7 @@ splat_vnode_test6(struct file *file, void *arg) int rc; if ((rc = vn_open(SPLAT_VNODE_TEST_FILE_RW, UIO_SYSSPACE, - FWRITE | FREAD | FCREAT | FEXCL, 0644, &vp, 0, 0))) { + FWRITE | FCREAT | FEXCL, 0644, &vp, 0, 0))) { splat_vprint(file, SPLAT_VNODE_TEST6_NAME, "Failed to vn_open test file: %s (%d)\n", SPLAT_VNODE_TEST_FILE_RW, rc); -- 2.40.0