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authorNick Piggin <npiggin@suse.de>2007-10-16 04:25:26 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 12:42:58 -0400
commit55144768e100b68447f44c5e5c9deb155ad661bd (patch)
tree9889682ee3b64627ad9eb504f30672fad844752f /mm/filemap.c
parent03158cd7eb3374843de68421142ca5900df845d9 (diff)
fs: remove some AOP_TRUNCATED_PAGE
prepare/commit_write no longer returns AOP_TRUNCATED_PAGE since OCFS2 and GFS2 were converted to the new aops, so we can make some simplifications for that. [michal.k.k.piotrowski@gmail.com: fix warning] Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Mark Fasheh <mark.fasheh@oracle.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/filemap.c')
-rw-r--r--mm/filemap.c16
1 files changed, 4 insertions, 12 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 195339b27e9a..c6049e947cd9 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1898,13 +1898,10 @@ again:
1898 1898
1899 ret = aops->prepare_write(file, page, offset, offset+len); 1899 ret = aops->prepare_write(file, page, offset, offset+len);
1900 if (ret) { 1900 if (ret) {
1901 if (ret != AOP_TRUNCATED_PAGE) 1901 unlock_page(page);
1902 unlock_page(page);
1903 page_cache_release(page); 1902 page_cache_release(page);
1904 if (pos + len > inode->i_size) 1903 if (pos + len > inode->i_size)
1905 vmtruncate(inode, inode->i_size); 1904 vmtruncate(inode, inode->i_size);
1906 if (ret == AOP_TRUNCATED_PAGE)
1907 goto again;
1908 } 1905 }
1909 return ret; 1906 return ret;
1910 } 1907 }
@@ -1931,7 +1928,6 @@ int pagecache_write_end(struct file *file, struct address_space *mapping,
1931 unlock_page(page); 1928 unlock_page(page);
1932 mark_page_accessed(page); 1929 mark_page_accessed(page);
1933 page_cache_release(page); 1930 page_cache_release(page);
1934 BUG_ON(ret == AOP_TRUNCATED_PAGE); /* can't deal with */
1935 1931
1936 if (ret < 0) { 1932 if (ret < 0) {
1937 if (pos + len > inode->i_size) 1933 if (pos + len > inode->i_size)
@@ -2142,7 +2138,7 @@ static ssize_t generic_perform_write_2copy(struct file *file,
2142 flush_dcache_page(page); 2138 flush_dcache_page(page);
2143 2139
2144 status = a_ops->commit_write(file, page, offset, offset+bytes); 2140 status = a_ops->commit_write(file, page, offset, offset+bytes);
2145 if (unlikely(status < 0 || status == AOP_TRUNCATED_PAGE)) 2141 if (unlikely(status < 0))
2146 goto fs_write_aop_error; 2142 goto fs_write_aop_error;
2147 if (unlikely(status > 0)) /* filesystem did partial write */ 2143 if (unlikely(status > 0)) /* filesystem did partial write */
2148 copied = min_t(size_t, copied, status); 2144 copied = min_t(size_t, copied, status);
@@ -2162,8 +2158,7 @@ static ssize_t generic_perform_write_2copy(struct file *file,
2162 continue; 2158 continue;
2163 2159
2164fs_write_aop_error: 2160fs_write_aop_error:
2165 if (status != AOP_TRUNCATED_PAGE) 2161 unlock_page(page);
2166 unlock_page(page);
2167 page_cache_release(page); 2162 page_cache_release(page);
2168 if (src_page) 2163 if (src_page)
2169 page_cache_release(src_page); 2164 page_cache_release(src_page);
@@ -2175,10 +2170,7 @@ fs_write_aop_error:
2175 */ 2170 */
2176 if (pos + bytes > inode->i_size) 2171 if (pos + bytes > inode->i_size)
2177 vmtruncate(inode, inode->i_size); 2172 vmtruncate(inode, inode->i_size);
2178 if (status == AOP_TRUNCATED_PAGE) 2173 break;
2179 continue;
2180 else
2181 break;
2182 } while (iov_iter_count(i)); 2174 } while (iov_iter_count(i));
2183 2175
2184 return written ? written : status; 2176 return written ? written : status;