luck/tmp_suning_uos_patched
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nfs: Provide and use helper functions for marking a page as unstable

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Signed-off-by: Tom Haynes <loghyr@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Tom Haynes 2015-02-13 13:19:53 -08:00 committed by Trond Myklebust
parent 6bec003528
commit d15bc38df6
4 changed files with 19 additions and 21 deletions
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9
fs/nfs/filelayout/filelayout.c
View File

@ -1000,13 +1000,8 @@ filelayout_mark_request_commit(struct nfs_page *req,
nfs_list_add_request(req, list); nfs_list_add_request(req, list);
cinfo->mds->ncommit++; cinfo->mds->ncommit++;
spin_unlock(cinfo->lock); spin_unlock(cinfo->lock);
if (!cinfo->dreq) { if (!cinfo->dreq)
inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); nfs_mark_page_unstable(req->wb_page);
inc_bdi_stat(inode_to_bdi(page_file_mapping(req->wb_page)->host),
BDI_RECLAIMABLE);
__mark_inode_dirty(req->wb_context->dentry->d_inode,
I_DIRTY_DATASYNC);
}
} }
static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i) static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i)

9
fs/nfs/flexfilelayout/flexfilelayout.c
View File

@ -1364,13 +1364,8 @@ ff_layout_mark_request_commit(struct nfs_page *req,
nfs_list_add_request(req, list); nfs_list_add_request(req, list);
cinfo->mds->ncommit++; cinfo->mds->ncommit++;
spin_unlock(cinfo->lock); spin_unlock(cinfo->lock);
if (!cinfo->dreq) { if (!cinfo->dreq)
inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); nfs_mark_page_unstable(req->wb_page);
inc_bdi_stat(inode_to_bdi(page_file_mapping(req->wb_page)->host),
BDI_RECLAIMABLE);
__mark_inode_dirty(req->wb_context->dentry->d_inode,
I_DIRTY_DATASYNC);
}
} }
static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i) static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i)

13
fs/nfs/internal.h
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@ -597,6 +597,19 @@ void nfs_super_set_maxbytes(struct super_block *sb, __u64 maxfilesize)
sb->s_maxbytes = MAX_LFS_FILESIZE; sb->s_maxbytes = MAX_LFS_FILESIZE;
} }
/*
* Record the page as unstable and mark its inode as dirty.
*/
static inline
void nfs_mark_page_unstable(struct page *page)
{
struct inode *inode = page_file_mapping(page)->host;
inc_zone_page_state(page, NR_UNSTABLE_NFS);
inc_bdi_stat(inode_to_bdi(inode), BDI_RECLAIMABLE);
__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
}
/* /*
* Determine the number of bytes of data the page contains * Determine the number of bytes of data the page contains
*/ */

9
fs/nfs/write.c
View File

@ -789,13 +789,8 @@ nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
nfs_list_add_request(req, dst); nfs_list_add_request(req, dst);
cinfo->mds->ncommit++; cinfo->mds->ncommit++;
spin_unlock(cinfo->lock); spin_unlock(cinfo->lock);
if (!cinfo->dreq) { if (!cinfo->dreq)
inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); nfs_mark_page_unstable(req->wb_page);
inc_bdi_stat(inode_to_bdi(page_file_mapping(req->wb_page)->host),
BDI_RECLAIMABLE);
__mark_inode_dirty(req->wb_context->dentry->d_inode,
I_DIRTY_DATASYNC);
}
} }
EXPORT_SYMBOL_GPL(nfs_request_add_commit_list); EXPORT_SYMBOL_GPL(nfs_request_add_commit_list);