From 450630975da9e7dffe540753e169dc4da5fe7c29 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 4 Dec 2016 18:24:56 -0500 Subject: don't open-code file_inode() Signed-off-by: Al Viro --- fs/orangefs/file.c | 2 +- fs/orangefs/orangefs-debugfs.c | 6 ++++-- 2 files changed, 5 insertions(+), 3 deletions(-) (limited to 'fs/orangefs') diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c index 02cc613..e6bbc80 100644 --- a/fs/orangefs/file.c +++ b/fs/orangefs/file.c @@ -724,7 +724,7 @@ static int orangefs_lock(struct file *filp, int cmd, struct file_lock *fl) { int rc = -EINVAL; - if (ORANGEFS_SB(filp->f_inode->i_sb)->flags & ORANGEFS_OPT_LOCAL_LOCK) { + if (ORANGEFS_SB(file_inode(filp)->i_sb)->flags & ORANGEFS_OPT_LOCAL_LOCK) { if (cmd == F_GETLK) { rc = 0; posix_test_lock(filp, fl); diff --git a/fs/orangefs/orangefs-debugfs.c b/fs/orangefs/orangefs-debugfs.c index 38887cc..f1e8249 100644 --- a/fs/orangefs/orangefs-debugfs.c +++ b/fs/orangefs/orangefs-debugfs.c @@ -434,6 +434,7 @@ static ssize_t orangefs_debug_write(struct file *file, char *debug_string; struct orangefs_kernel_op_s *new_op = NULL; struct client_debug_mask c_mask = { NULL, 0, 0 }; + char *s; gossip_debug(GOSSIP_DEBUGFS_DEBUG, "orangefs_debug_write: %pD\n", @@ -521,8 +522,9 @@ static ssize_t orangefs_debug_write(struct file *file, } mutex_lock(&orangefs_debug_lock); - memset(file->f_inode->i_private, 0, ORANGEFS_MAX_DEBUG_STRING_LEN); - sprintf((char *)file->f_inode->i_private, "%s\n", debug_string); + s = file_inode(file)->i_private; + memset(s, 0, ORANGEFS_MAX_DEBUG_STRING_LEN); + sprintf(s, "%s\n", debug_string); mutex_unlock(&orangefs_debug_lock); *ppos += count; -- cgit v1.1 From cbbd26b8b1a6af9c02e2b6523e12bd50cc765059 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 1 Nov 2016 22:09:04 -0400 Subject: [iov_iter] new primitives - copy_from_iter_full() and friends copy_from_iter_full(), copy_from_iter_full_nocache() and csum_and_copy_from_iter_full() - counterparts of copy_from_iter() et.al., advancing iterator only in case of successful full copy and returning whether it had been successful or not. Convert some obvious users. *NOTE* - do not blindly assume that something is a good candidate for those unless you are sure that not advancing iov_iter in failure case is the right thing in this case. Anything that does short read/short write kind of stuff (or is in a loop, etc.) is unlikely to be a good one. Signed-off-by: Al Viro --- fs/orangefs/devorangefs-req.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) (limited to 'fs/orangefs') diff --git a/fs/orangefs/devorangefs-req.c b/fs/orangefs/devorangefs-req.c index 516ffb4..b0ced66 100644 --- a/fs/orangefs/devorangefs-req.c +++ b/fs/orangefs/devorangefs-req.c @@ -355,7 +355,6 @@ static ssize_t orangefs_devreq_write_iter(struct kiocb *iocb, __u64 tag; } head; int total = ret = iov_iter_count(iter); - int n; int downcall_size = sizeof(struct orangefs_downcall_s); int head_size = sizeof(head); @@ -372,8 +371,7 @@ static ssize_t orangefs_devreq_write_iter(struct kiocb *iocb, return -EFAULT; } - n = copy_from_iter(&head, head_size, iter); - if (n < head_size) { + if (!copy_from_iter_full(&head, head_size, iter)) { gossip_err("%s: failed to copy head.\n", __func__); return -EFAULT; } @@ -407,8 +405,7 @@ static ssize_t orangefs_devreq_write_iter(struct kiocb *iocb, return ret; } - n = copy_from_iter(&op->downcall, downcall_size, iter); - if (n != downcall_size) { + if (!copy_from_iter_full(&op->downcall, downcall_size, iter)) { gossip_err("%s: failed to copy downcall.\n", __func__); goto Efault; } @@ -462,10 +459,8 @@ static ssize_t orangefs_devreq_write_iter(struct kiocb *iocb, goto Enomem; } memset(op->downcall.trailer_buf, 0, op->downcall.trailer_size); - n = copy_from_iter(op->downcall.trailer_buf, - op->downcall.trailer_size, - iter); - if (n != op->downcall.trailer_size) { + if (!copy_from_iter_full(op->downcall.trailer_buf, + op->downcall.trailer_size, iter)) { gossip_err("%s: failed to copy trailer.\n", __func__); vfree(op->downcall.trailer_buf); goto Efault; -- cgit v1.1