*
* Lustre Light directory handling
*
- * Copyright (c) 2002, 2003 Cluster File Systems, Inc.
+ * Copyright (c) 2002-2004 Cluster File Systems, Inc.
*
* This file is part of Lustre, http://www.lustre.org.
*
#include <sys/fcntl.h>
#include <sys/queue.h>
+#ifdef HAVE_XTIO_H
+#include <xtio.h>
+#endif
#include <sysio.h>
#include <fs.h>
#include <mount.h>
#include <inode.h>
+#ifdef HAVE_FILE_H
#include <file.h>
+#endif
#undef LIST_HEAD
+#ifdef HAVE_LINUX_TYPES_H
#include <linux/types.h>
-#include <linux/dirent.h>
+#elif defined(HAVE_SYS_TYPES_H)
+#include <sys/types.h>
+#endif
+
+#ifdef HAVE_LINUX_UNISTD_H
#include <linux/unistd.h>
+#elif defined(HAVE_UNISTD_H)
+#include <unistd.h>
+#endif
+
+#include <dirent.h>
#include "llite_lib.h"
{
struct llu_inode_info *lli = llu_i2info(inode);
struct llu_sb_info *sbi = llu_i2sbi(inode);
- struct ll_fid mdc_fid;
+ struct lustre_id id;
__u64 offset;
int rc = 0;
struct ptlrpc_request *request;
struct mds_body *body;
struct lookup_intent it = { .it_op = IT_READDIR };
struct mdc_op_data data;
- struct obd_device *obddev = class_exp2obd(sbi->ll_mdc_exp);
+ struct obd_device *obddev = class_exp2obd(sbi->ll_md_exp);
struct ldlm_res_id res_id =
- { .name = {lli->lli_st_ino, (__u64)lli->lli_st_generation} };
+ { .name = {id_fid(&lli->lli_id), id_group(&lli->lli_id)} };
ldlm_policy_data_t policy = { .l_inodebits = { MDS_INODELOCK_UPDATE } };
ENTRY;
- if ((lli->lli_st_size + PAGE_CACHE_SIZE - 1) >> PAGE_SHIFT <= page->index) {
- /* XXX why do we need this exactly, and why do we think that
- * an all-zero directory page is useful?
- */
- CERROR("memsetting dir page %lu to zero (size %lld)\n",
- page->index, lli->lli_st_size);
- memset(page->addr, 0, PAGE_CACHE_SIZE);
- GOTO(readpage_out, rc);
- }
-
rc = ldlm_lock_match(obddev->obd_namespace, LDLM_FL_BLOCK_GRANTED,
&res_id, LDLM_IBITS, &policy, LCK_PR, &lockh);
if (!rc) {
- llu_prepare_mdc_op_data(&data, inode, NULL, NULL, 0, 0);
+ llu_prepare_mdc_data(&data, inode, NULL, NULL, 0, 0);
- rc = mdc_enqueue(sbi->ll_mdc_exp, LDLM_IBITS, &it, LCK_PR,
+ rc = mdc_enqueue(sbi->ll_md_exp, LDLM_IBITS, &it, LCK_PR,
&data, &lockh, NULL, 0,
ldlm_completion_ast, llu_mdc_blocking_ast,
inode);
- request = (struct ptlrpc_request *)it.d.lustre.it_data;
+ request = (struct ptlrpc_request *)LUSTRE_IT(&it)->it_data;
if (request)
ptlrpc_req_finished(request);
if (rc < 0) {
}
ldlm_lock_dump_handle(D_OTHER, &lockh);
- mdc_pack_fid(&mdc_fid, lli->lli_st_ino, lli->lli_st_generation, S_IFDIR);
+ /* FIXME-UMKA: should be here some mds num and mds id? */
+ mdc_pack_id(&id, lli->lli_st_ino, lli->lli_st_generation,
+ S_IFDIR, 0, 0);
offset = page->index << PAGE_SHIFT;
- rc = mdc_readpage(sbi->ll_mdc_exp, &mdc_fid,
- offset, page, &request);
+ rc = mdc_readpage(sbi->ll_md_exp, &id, offset, page, &request);
if (!rc) {
body = lustre_msg_buf(request->rq_repmsg, 0, sizeof (*body));
LASSERT (body != NULL); /* checked by mdc_readpage() */
LASSERT_REPSWABBED (request, 0); /* swabbed by mdc_readpage() */
lli->lli_st_size = body->size;
+ } else {
+ CERROR("read_dir_page(%ld) error %d\n", page->index, rc);
}
ptlrpc_req_finished(request);
EXIT;
- readpage_out:
ldlm_lock_decref(&lockh, LCK_PR);
return rc;
}
return page;
}
+enum {
+ EXT2_FT_UNKNOWN,
+ EXT2_FT_REG_FILE,
+ EXT2_FT_DIR,
+ EXT2_FT_CHRDEV,
+ EXT2_FT_BLKDEV,
+ EXT2_FT_FIFO,
+ EXT2_FT_SOCK,
+ EXT2_FT_SYMLINK,
+ EXT2_FT_MAX
+};
+
+static unsigned char ext2_filetype_table[EXT2_FT_MAX] = {
+ [EXT2_FT_UNKNOWN] DT_UNKNOWN,
+ [EXT2_FT_REG_FILE] DT_REG,
+ [EXT2_FT_DIR] DT_DIR,
+ [EXT2_FT_CHRDEV] DT_CHR,
+ [EXT2_FT_BLKDEV] DT_BLK,
+ [EXT2_FT_FIFO] DT_FIFO,
+ [EXT2_FT_SOCK] DT_SOCK,
+ [EXT2_FT_SYMLINK] DT_LNK,
+};
+
#define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
#define ROUND_UP64(x) (((x)+sizeof(__u64)-1) & ~(sizeof(__u64)-1))
int maxpages, pgidx, filled = 0;
ENTRY;
+ if (lli->lli_st_size == 0) {
+ CWARN("dir size is 0?\n");
+ RETURN(0);
+ }
+
+ liblustre_wait_event(0);
+
if (pos == -1)
pos = lli->lli_dir_pos;
- maxpages = lli->lli_st_size >> PAGE_CACHE_SHIFT;
- pgidx = pos >> PAGE_CACHE_SHIFT;
- offset = pos & ~PAGE_CACHE_MASK;
+ maxpages = (lli->lli_st_size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+ pgidx = pos >> PAGE_SHIFT;
+ offset = pos & ~PAGE_MASK;
for ( ; pgidx < maxpages ; pgidx++, offset = 0) {
struct page *page;
continue;
/* size might have been updated by mdc_readpage */
- maxpages = lli->lli_st_size >> PAGE_CACHE_SHIFT;
+ maxpages = (lli->lli_st_size + PAGE_SIZE - 1) >> PAGE_SHIFT;
/* fill in buffer */
addr = page->addr;
- limit = addr + PAGE_CACHE_SIZE - EXT2_DIR_REC_LEN(1);
+ limit = addr + PAGE_SIZE - EXT2_DIR_REC_LEN(1);
de = (struct ext2_dirent *) (addr + offset);
for ( ; (char*) de <= limit; de = ext2_next_entry(de)) {
if (de->inode) {
int over;
- unsigned char d_type = 0;
+ unsigned char d_type = DT_UNKNOWN;
- /* XXX handle type, etc here */
+ if (de->file_type < EXT2_FT_MAX)
+ d_type = ext2_filetype_table[de->file_type];
offset = (char*) de - addr;
over = filldir(buf, nbytes, de->name, de->name_len,
- (pgidx << PAGE_CACHE_SHIFT) | offset,
+ (pgidx << PAGE_SHIFT) | offset,
le32_to_cpu(de->inode), d_type, &filled);
if (over) {
free_page(page);
free_page(page);
}
done:
- lli->lli_dir_pos = pgidx << PAGE_CACHE_SHIFT | offset;
+ lli->lli_dir_pos = pgidx << PAGE_SHIFT | offset;
*basep = lli->lli_dir_pos;
RETURN(filled);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff