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| author | Tony Luck <tony.luck@intel.com> | 2005-06-15 23:06:48 +0200 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2005-06-15 23:06:48 +0200 |
| commit | f2cbb4f01936a3e4225692e03b084b78c56d386d (patch) | |
| tree | f89f3d8baa250589a38a4dd2df56f84cddae3c76 /mm/filemap.c | |
| parent | Merge with temp tree to get David's gdb inferior calls patch (diff) | |
| parent | [PATCH] update ppc64 defconfig (diff) | |
| download | linux-f2cbb4f01936a3e4225692e03b084b78c56d386d.tar.xz linux-f2cbb4f01936a3e4225692e03b084b78c56d386d.zip | |
Auto merge with /home/aegl/GIT/linus
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index d5fdae2eb183..4a2fee2cb62b 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -29,11 +29,6 @@ #include <linux/security.h> #include <linux/syscalls.h> /* - * This is needed for the following functions: - * - try_to_release_page - * - block_invalidatepage - * - generic_osync_inode - * * FIXME: remove all knowledge of the buffer layer from the core VM */ #include <linux/buffer_head.h> /* for generic_osync_inode */ @@ -1009,7 +1004,7 @@ __generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov, if (pos < size) { retval = generic_file_direct_IO(READ, iocb, iov, pos, nr_segs); - if (retval >= 0 && !is_sync_kiocb(iocb)) + if (retval > 0 && !is_sync_kiocb(iocb)) retval = -EIOCBQUEUED; if (retval > 0) *ppos = pos + retval; @@ -1973,6 +1968,7 @@ generic_file_buffered_write(struct kiocb *iocb, const struct iovec *iov, do { unsigned long index; unsigned long offset; + unsigned long maxlen; size_t copied; offset = (pos & (PAGE_CACHE_SIZE -1)); /* Within page */ @@ -1987,7 +1983,10 @@ generic_file_buffered_write(struct kiocb *iocb, const struct iovec *iov, * same page as we're writing to, without it being marked * up-to-date. */ - fault_in_pages_readable(buf, bytes); + maxlen = cur_iov->iov_len - iov_base; + if (maxlen > bytes) + maxlen = bytes; + fault_in_pages_readable(buf, maxlen); page = __grab_cache_page(mapping,index,&cached_page,&lru_pvec); if (!page) { @@ -2029,6 +2028,8 @@ generic_file_buffered_write(struct kiocb *iocb, const struct iovec *iov, filemap_set_next_iovec(&cur_iov, &iov_base, status); buf = cur_iov->iov_base + iov_base; + } else { + iov_base += status; } } } |