diff options
Diffstat (limited to 'xlators/features/index/src/index.c')
| -rw-r--r-- | xlators/features/index/src/index.c | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/xlators/features/index/src/index.c b/xlators/features/index/src/index.c index c342da8274c..50e2e0ab54d 100644 --- a/xlators/features/index/src/index.c +++ b/xlators/features/index/src/index.c @@ -268,10 +268,11 @@ check_delete_stale_index_file (xlator_t *this, char *filename) } static int -index_fill_readdir (fd_t *fd, DIR *dir, off_t off, +index_fill_readdir (fd_t *fd, index_fd_ctx_t *fctx, DIR *dir, off_t off, size_t size, gf_dirent_t *entries) { off_t in_case = -1; + off_t last_off = 0; size_t filled = 0; int count = 0; char entrybuf[sizeof(struct dirent) + 256 + 8]; @@ -286,11 +287,11 @@ index_fill_readdir (fd_t *fd, DIR *dir, off_t off, } else { seekdir (dir, off); #ifndef GF_LINUX_HOST_OS - if (telldir(dir) != off) { + if ((u_long)telldir(dir) != off && off != fctx->dir_eof) { gf_log (THIS->name, GF_LOG_ERROR, - "seekdir(%ld) failed on dir=%p: " + "seekdir(0x%llx) failed on dir=%p: " "Invalid argument (offset reused from " - "another DIR * structure?)", (long)off, dir); + "another DIR * structure?)", off, dir); errno = EINVAL; count = -1; goto out; @@ -299,7 +300,7 @@ index_fill_readdir (fd_t *fd, DIR *dir, off_t off, } while (filled <= size) { - in_case = telldir (dir); + in_case = (u_long)telldir (dir); if (in_case == -1) { gf_log (THIS->name, GF_LOG_ERROR, @@ -335,12 +336,13 @@ index_fill_readdir (fd_t *fd, DIR *dir, off_t off, if (this_size + filled > size) { seekdir (dir, in_case); #ifndef GF_LINUX_HOST_OS - if (telldir(dir) != in_case) { + if ((u_long)telldir(dir) != in_case && + in_case != fctx->dir_eof) { gf_log (THIS->name, GF_LOG_ERROR, - "seekdir(%ld) failed on dir=%p: " + "seekdir(0x%llx) failed on dir=%p: " "Invalid argument (offset reused from " "another DIR * structure?)", - (long)in_case, dir); + in_case, dir); errno = EINVAL; count = -1; goto out; @@ -357,7 +359,14 @@ index_fill_readdir (fd_t *fd, DIR *dir, off_t off, entry->d_name, strerror (errno)); goto out; } - this_entry->d_off = telldir (dir); + /* + * we store the offset of next entry here, which is + * probably not intended, but code using syncop_readdir() + * (glfs-heal.c, afr-self-heald.c, pump.c) rely on it + * for directory read resumption. + */ + last_off = (u_long)telldir(dir); + this_entry->d_off = last_off; this_entry->d_ino = entry->d_ino; list_add_tail (&this_entry->list, &entries->list); @@ -366,9 +375,12 @@ index_fill_readdir (fd_t *fd, DIR *dir, off_t off, count ++; } - if ((!readdir (dir) && (errno == 0))) + if ((!readdir (dir) && (errno == 0))) { /* Indicate EOF */ errno = ENOENT; + /* Remember EOF offset for later detection */ + fctx->dir_eof = last_off; + } out: return count; } @@ -581,6 +593,7 @@ __index_fd_ctx_get (fd_t *fd, xlator_t *this, index_fd_ctx_t **ctx) fctx = NULL; goto out; } + fctx->dir_eof = -1; ret = __fd_ctx_set (fd, this, (uint64_t)(long)fctx); if (ret) { @@ -949,7 +962,7 @@ index_readdir_wrapper (call_frame_t *frame, xlator_t *this, goto done; } - count = index_fill_readdir (fd, dir, off, size, &entries); + count = index_fill_readdir (fd, fctx, dir, off, size, &entries); /* pick ENOENT to indicate EOF */ op_errno = errno; @@ -1270,8 +1283,11 @@ index_releasedir (xlator_t *this, fd_t *fd) goto out; fctx = (index_fd_ctx_t*) (long) ctx; - if (fctx->dir) - closedir (fctx->dir); + if (fctx->dir) { + ret = closedir (fctx->dir); + if (ret) + gf_log (this->name, GF_LOG_ERROR, "closedir error: %s", strerror (errno)); + } GF_FREE (fctx); out: |