From 290e33593d76d1cebf873da50e036559c4820af9 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Fri, 17 Aug 2012 09:47:49 -0700 Subject: libceph: remove unused monc->have_fsid This is unused; use monc->client->have_fsid. Signed-off-by: Sage Weil --- net/ceph/mon_client.c | 1 - 1 file changed, 1 deletion(-) (limited to 'net') diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c index 900ea0f043f..e98f6070b5a 100644 --- a/net/ceph/mon_client.c +++ b/net/ceph/mon_client.c @@ -769,7 +769,6 @@ static int build_initial_monmap(struct ceph_mon_client *monc) monc->monmap->mon_inst[i].name.num = cpu_to_le64(i); } monc->monmap->num_mon = num_mon; - monc->have_fsid = false; return 0; } -- cgit v1.2.3 From 7698f2f5e0d7b7a062213fa970b7c4e121adf38e Mon Sep 17 00:00:00 2001 From: Iulius Curt Date: Thu, 23 Aug 2012 15:14:29 +0300 Subject: libceph: Fix sparse warning Make ceph_monc_do_poolop() static to remove the following sparse warning: * net/ceph/mon_client.c:616:5: warning: symbol 'ceph_monc_do_poolop' was not declared. Should it be static? Also drops the 'ceph_monc_' prefix, now being a private function. Signed-off-by: Iulius Curt Signed-off-by: Sage Weil --- net/ceph/mon_client.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net') diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c index e98f6070b5a..812eb3b46c1 100644 --- a/net/ceph/mon_client.c +++ b/net/ceph/mon_client.c @@ -637,7 +637,7 @@ bad: /* * Do a synchronous pool op. */ -int ceph_monc_do_poolop(struct ceph_mon_client *monc, u32 op, +static int do_poolop(struct ceph_mon_client *monc, u32 op, u32 pool, u64 snapid, char *buf, int len) { @@ -687,7 +687,7 @@ out: int ceph_monc_create_snapid(struct ceph_mon_client *monc, u32 pool, u64 *snapid) { - return ceph_monc_do_poolop(monc, POOL_OP_CREATE_UNMANAGED_SNAP, + return do_poolop(monc, POOL_OP_CREATE_UNMANAGED_SNAP, pool, 0, (char *)snapid, sizeof(*snapid)); } @@ -696,7 +696,7 @@ EXPORT_SYMBOL(ceph_monc_create_snapid); int ceph_monc_delete_snapid(struct ceph_mon_client *monc, u32 pool, u64 snapid) { - return ceph_monc_do_poolop(monc, POOL_OP_CREATE_UNMANAGED_SNAP, + return do_poolop(monc, POOL_OP_CREATE_UNMANAGED_SNAP, pool, snapid, 0, 0); } -- cgit v1.2.3 From cc4829e5967de577794b25dfcd1a65e509d171ed Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 5 Sep 2012 14:34:32 +0800 Subject: ceph: use list_move_tail instead of list_del/list_add_tail Using list_move_tail() instead of list_del() + list_add_tail(). Signed-off-by: Wei Yongjun Signed-off-by: Sage Weil --- net/ceph/pagelist.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'net') diff --git a/net/ceph/pagelist.c b/net/ceph/pagelist.c index 665cd23020f..92866bebb65 100644 --- a/net/ceph/pagelist.c +++ b/net/ceph/pagelist.c @@ -1,4 +1,3 @@ - #include #include #include @@ -134,8 +133,8 @@ int ceph_pagelist_truncate(struct ceph_pagelist *pl, ceph_pagelist_unmap_tail(pl); while (pl->head.prev != c->page_lru) { page = list_entry(pl->head.prev, struct page, lru); - list_del(&page->lru); /* remove from pagelist */ - list_add_tail(&page->lru, &pl->free_list); /* add to reserve */ + /* move from pagelist to reserve */ + list_move_tail(&page->lru, &pl->free_list); ++pl->num_pages_free; } pl->room = c->room; -- cgit v1.2.3 From d63b77f4c552cc3a20506871046ab0fcbc332609 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Mon, 24 Sep 2012 20:59:48 -0700 Subject: libceph: check for invalid mapping If we encounter an invalid (e.g., zeroed) mapping, return an error and avoid a divide by zero. Signed-off-by: Sage Weil Reviewed-by: Alex Elder --- include/linux/ceph/osd_client.h | 2 +- include/linux/ceph/osdmap.h | 6 +++--- net/ceph/osd_client.c | 32 ++++++++++++++++++++------------ net/ceph/osdmap.c | 18 ++++++++++++++++-- 4 files changed, 40 insertions(+), 18 deletions(-) (limited to 'net') diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h index cedfb1a8434..d9b880e977e 100644 --- a/include/linux/ceph/osd_client.h +++ b/include/linux/ceph/osd_client.h @@ -207,7 +207,7 @@ extern void ceph_osdc_handle_reply(struct ceph_osd_client *osdc, extern void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg); -extern void ceph_calc_raw_layout(struct ceph_osd_client *osdc, +extern int ceph_calc_raw_layout(struct ceph_osd_client *osdc, struct ceph_file_layout *layout, u64 snapid, u64 off, u64 *plen, u64 *bno, diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h index 311ef8d6aa9..e88a620b9f8 100644 --- a/include/linux/ceph/osdmap.h +++ b/include/linux/ceph/osdmap.h @@ -109,9 +109,9 @@ extern struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end, extern void ceph_osdmap_destroy(struct ceph_osdmap *map); /* calculate mapping of a file extent to an object */ -extern void ceph_calc_file_object_mapping(struct ceph_file_layout *layout, - u64 off, u64 *plen, - u64 *bno, u64 *oxoff, u64 *oxlen); +extern int ceph_calc_file_object_mapping(struct ceph_file_layout *layout, + u64 off, u64 *plen, + u64 *bno, u64 *oxoff, u64 *oxlen); /* calculate mapping of object to a placement group */ extern int ceph_calc_object_layout(struct ceph_object_layout *ol, diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 42119c05e82..f7b56e23988 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -52,7 +52,7 @@ static int op_has_extent(int op) op == CEPH_OSD_OP_WRITE); } -void ceph_calc_raw_layout(struct ceph_osd_client *osdc, +int ceph_calc_raw_layout(struct ceph_osd_client *osdc, struct ceph_file_layout *layout, u64 snapid, u64 off, u64 *plen, u64 *bno, @@ -62,12 +62,15 @@ void ceph_calc_raw_layout(struct ceph_osd_client *osdc, struct ceph_osd_request_head *reqhead = req->r_request->front.iov_base; u64 orig_len = *plen; u64 objoff, objlen; /* extent in object */ + int r; reqhead->snapid = cpu_to_le64(snapid); /* object extent? */ - ceph_calc_file_object_mapping(layout, off, plen, bno, - &objoff, &objlen); + r = ceph_calc_file_object_mapping(layout, off, plen, bno, + &objoff, &objlen); + if (r < 0) + return r; if (*plen < orig_len) dout(" skipping last %llu, final file extent %llu~%llu\n", orig_len - *plen, off, *plen); @@ -83,7 +86,7 @@ void ceph_calc_raw_layout(struct ceph_osd_client *osdc, dout("calc_layout bno=%llx %llu~%llu (%d pages)\n", *bno, objoff, objlen, req->r_num_pages); - + return 0; } EXPORT_SYMBOL(ceph_calc_raw_layout); @@ -112,20 +115,25 @@ EXPORT_SYMBOL(ceph_calc_raw_layout); * * fill osd op in request message. */ -static void calc_layout(struct ceph_osd_client *osdc, - struct ceph_vino vino, - struct ceph_file_layout *layout, - u64 off, u64 *plen, - struct ceph_osd_request *req, - struct ceph_osd_req_op *op) +static int calc_layout(struct ceph_osd_client *osdc, + struct ceph_vino vino, + struct ceph_file_layout *layout, + u64 off, u64 *plen, + struct ceph_osd_request *req, + struct ceph_osd_req_op *op) { u64 bno; + int r; - ceph_calc_raw_layout(osdc, layout, vino.snap, off, - plen, &bno, req, op); + r = ceph_calc_raw_layout(osdc, layout, vino.snap, off, + plen, &bno, req, op); + if (r < 0) + return r; snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx", vino.ino, bno); req->r_oid_len = strlen(req->r_oid); + + return r; } /* diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c index 3124b71a888..5433fb0eb3c 100644 --- a/net/ceph/osdmap.c +++ b/net/ceph/osdmap.c @@ -984,7 +984,7 @@ bad: * for now, we write only a single su, until we can * pass a stride back to the caller. */ -void ceph_calc_file_object_mapping(struct ceph_file_layout *layout, +int ceph_calc_file_object_mapping(struct ceph_file_layout *layout, u64 off, u64 *plen, u64 *ono, u64 *oxoff, u64 *oxlen) @@ -998,11 +998,17 @@ void ceph_calc_file_object_mapping(struct ceph_file_layout *layout, dout("mapping %llu~%llu osize %u fl_su %u\n", off, *plen, osize, su); + if (su == 0 || sc == 0) + goto invalid; su_per_object = osize / su; + if (su_per_object == 0) + goto invalid; dout("osize %u / su %u = su_per_object %u\n", osize, su, su_per_object); - BUG_ON((su & ~PAGE_MASK) != 0); + if ((su & ~PAGE_MASK) != 0) + goto invalid; + /* bl = *off / su; */ t = off; do_div(t, su); @@ -1030,6 +1036,14 @@ void ceph_calc_file_object_mapping(struct ceph_file_layout *layout, *plen = *oxlen; dout(" obj extent %llu~%llu\n", *oxoff, *oxlen); + return 0; + +invalid: + dout(" invalid layout\n"); + *ono = 0; + *oxoff = 0; + *oxlen = 0; + return -EINVAL; } EXPORT_SYMBOL(ceph_calc_file_object_mapping); -- cgit v1.2.3 From 6816282dab3a72efe8c0d182c1bc2960d87f4322 Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Mon, 24 Sep 2012 21:01:02 -0700 Subject: ceph: propagate layout error on osd request creation If we are creating an osd request and get an invalid layout, return an EINVAL to the caller. We switch up the return to have an error code instead of NULL implying -ENOMEM. Signed-off-by: Sage Weil Reviewed-by: Alex Elder --- fs/ceph/addr.c | 8 ++++---- fs/ceph/file.c | 4 ++-- net/ceph/osd_client.c | 15 +++++++++------ 3 files changed, 15 insertions(+), 12 deletions(-) (limited to 'net') diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 452e71a1b75..4469b63c9b7 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -308,8 +308,8 @@ static int start_read(struct inode *inode, struct list_head *page_list, int max) NULL, 0, ci->i_truncate_seq, ci->i_truncate_size, NULL, false, 1, 0); - if (!req) - return -ENOMEM; + if (IS_ERR(req)) + return PTR_ERR(req); /* build page vector */ nr_pages = len >> PAGE_CACHE_SHIFT; @@ -832,8 +832,8 @@ get_more_pages: ci->i_truncate_size, &inode->i_mtime, true, 1, 0); - if (!req) { - rc = -ENOMEM; + if (IS_ERR(req)) { + rc = PTR_ERR(req); unlock_page(page); break; } diff --git a/fs/ceph/file.c b/fs/ceph/file.c index ecebbc09bfc..5840d2aaed1 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -536,8 +536,8 @@ more: do_sync, ci->i_truncate_seq, ci->i_truncate_size, &mtime, false, 2, page_align); - if (!req) - return -ENOMEM; + if (IS_ERR(req)) + return PTR_ERR(req); if (file->f_flags & O_DIRECT) { pages = ceph_get_direct_page_vector(data, num_pages, false); diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index f7b56e23988..ccbdfbba9e5 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -464,6 +464,7 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, { struct ceph_osd_req_op ops[3]; struct ceph_osd_request *req; + int r; ops[0].op = opcode; ops[0].extent.truncate_seq = truncate_seq; @@ -482,10 +483,12 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, use_mempool, GFP_NOFS, NULL, NULL); if (!req) - return NULL; + return ERR_PTR(-ENOMEM); /* calculate max write size */ - calc_layout(osdc, vino, layout, off, plen, req, ops); + r = calc_layout(osdc, vino, layout, off, plen, req, ops); + if (r < 0) + return ERR_PTR(r); req->r_file_layout = *layout; /* keep a copy */ /* in case it differs from natural (file) alignment that @@ -1928,8 +1931,8 @@ int ceph_osdc_readpages(struct ceph_osd_client *osdc, CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, NULL, 0, truncate_seq, truncate_size, NULL, false, 1, page_align); - if (!req) - return -ENOMEM; + if (IS_ERR(req)) + return PTR_ERR(req); /* it may be a short read due to an object boundary */ req->r_pages = pages; @@ -1971,8 +1974,8 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, snapc, do_sync, truncate_seq, truncate_size, mtime, nofail, 1, page_align); - if (!req) - return -ENOMEM; + if (IS_ERR(req)) + return PTR_ERR(req); /* it may be a short write due to an object boundary */ req->r_pages = pages; -- cgit v1.2.3