diff options
author | Paul Mackerras <paulus@samba.org> | 2008-01-31 01:25:51 +0100 |
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committer | Paul Mackerras <paulus@samba.org> | 2008-01-31 01:25:51 +0100 |
commit | bd45ac0c5daae35e7c71138172e63df5cf644cf6 (patch) | |
tree | 5eb5a599bf6a9d7a8a34e802db932aa9e9555de4 /fs/splice.c | |
parent | Merge branch 'for-2.6.25' of git://git.secretlab.ca/git/linux-2.6-mpc52xx (diff) | |
parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog (diff) | |
download | linux-bd45ac0c5daae35e7c71138172e63df5cf644cf6.tar.xz linux-bd45ac0c5daae35e7c71138172e63df5cf644cf6.zip |
Merge branch 'linux-2.6'
Diffstat (limited to 'fs/splice.c')
-rw-r--r-- | fs/splice.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/fs/splice.c b/fs/splice.c index 6bdcb6107bc3..1577a7391d23 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -254,11 +254,16 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe, } while (page_nr < spd_pages) - page_cache_release(spd->pages[page_nr++]); + spd->spd_release(spd, page_nr++); return ret; } +static void spd_release_page(struct splice_pipe_desc *spd, unsigned int i) +{ + page_cache_release(spd->pages[i]); +} + static int __generic_file_splice_read(struct file *in, loff_t *ppos, struct pipe_inode_info *pipe, size_t len, @@ -277,6 +282,7 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, .partial = partial, .flags = flags, .ops = &page_cache_pipe_buf_ops, + .spd_release = spd_release_page, }; index = *ppos >> PAGE_CACHE_SHIFT; @@ -908,10 +914,6 @@ static long do_splice_from(struct pipe_inode_info *pipe, struct file *out, if (unlikely(ret < 0)) return ret; - ret = security_file_permission(out, MAY_WRITE); - if (unlikely(ret < 0)) - return ret; - return out->f_op->splice_write(pipe, out, ppos, len, flags); } @@ -934,10 +936,6 @@ static long do_splice_to(struct file *in, loff_t *ppos, if (unlikely(ret < 0)) return ret; - ret = security_file_permission(in, MAY_READ); - if (unlikely(ret < 0)) - return ret; - return in->f_op->splice_read(in, ppos, pipe, len, flags); } @@ -1033,7 +1031,11 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd, goto out_release; } +done: pipe->nrbufs = pipe->curbuf = 0; + if (bytes > 0) + file_accessed(in); + return bytes; out_release: @@ -1049,16 +1051,11 @@ out_release: buf->ops = NULL; } } - pipe->nrbufs = pipe->curbuf = 0; - - /* - * If we transferred some data, return the number of bytes: - */ - if (bytes > 0) - return bytes; - return ret; + if (!bytes) + bytes = ret; + goto done; } EXPORT_SYMBOL(splice_direct_to_actor); @@ -1440,6 +1437,7 @@ static long vmsplice_to_pipe(struct file *file, const struct iovec __user *iov, .partial = partial, .flags = flags, .ops = &user_page_pipe_buf_ops, + .spd_release = spd_release_page, }; pipe = pipe_info(file->f_path.dentry->d_inode); |