diff options
| author | Boaz Harrosh <bharrosh@panasas.com> | 2010-03-22 11:23:40 +0200 |
|---|---|---|
| committer | Boaz Harrosh <bharrosh@panasas.com> | 2010-05-17 13:50:50 +0300 |
| commit | 200b0700420a78c3ade543761f0901985f41f96b (patch) | |
| tree | 521fd32425502856bf38d81e73f4cdf49103a80f | |
| parent | e40152ee1e1c7a63f4777791863215e3faa37a86 (diff) | |
exofs: Add default address_space_operations
All vectors of address_space_operations should be initialized
by the filesystem. Add the missing parts.
This is actually an optimization, by using
__set_page_dirty_nobuffers. The default, in case of NULL,
would be __set_page_dirty_buffers which has these extar if(s).
.releasepage && .invalidatepage should both not be called
because page_private() is NULL in exofs. Put a WARN_ON if
they are called, to indicate the Kernel has changed in this
regard, if when it does.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| -rw-r--r-- | fs/exofs/inode.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c index 76d2a79ef93..9507283be3a 100644 --- a/fs/exofs/inode.c +++ b/fs/exofs/inode.c @@ -755,6 +755,21 @@ static int exofs_write_end(struct file *file, struct address_space *mapping, return ret; } +static int exofs_releasepage(struct page *page, gfp_t gfp) +{ + EXOFS_DBGMSG("page 0x%lx\n", page->index); + WARN_ON(1); + return try_to_free_buffers(page); +} + +static void exofs_invalidatepage(struct page *page, unsigned long offset) +{ + EXOFS_DBGMSG("page_has_buffers=>%d\n", page_has_buffers(page)); + WARN_ON(1); + + block_invalidatepage(page, offset); +} + const struct address_space_operations exofs_aops = { .readpage = exofs_readpage, .readpages = exofs_readpages, @@ -762,6 +777,21 @@ const struct address_space_operations exofs_aops = { .writepages = exofs_writepages, .write_begin = exofs_write_begin_export, .write_end = exofs_write_end, + .releasepage = exofs_releasepage, + .set_page_dirty = __set_page_dirty_nobuffers, + .invalidatepage = exofs_invalidatepage, + + /* Not implemented Yet */ + .bmap = NULL, /* TODO: use osd's OSD_ACT_READ_MAP */ + .direct_IO = NULL, /* TODO: Should be trivial to do */ + + /* With these NULL has special meaning or default is not exported */ + .sync_page = NULL, + .get_xip_mem = NULL, + .migratepage = NULL, + .launder_page = NULL, + .is_partially_uptodate = NULL, + .error_remove_page = NULL, }; /****************************************************************************** |