From 0d9071f3090bbd7880558f3b488b236ac19b44fc Mon Sep 17 00:00:00 2001 From: seebs Date: Thu, 28 Jul 2016 14:02:12 -0500 Subject: [PATCH 1/2] Fix xattr performance When deleting files, we *do* know the inode and attribute, most of the time, so we pass those in whenever possible. The full purge of unmatched xattrs should not happen when the correct dev/ino are believed to be known. Signed-off-by: Seebs [YOCTO #9929] Upstream-Status: Backport (0d9071f3090bbd7880558f3b488b236ac19b44fc) Signed-off-by: Joshua Lock --- ChangeLog.txt | 3 +++ pseudo.c | 11 ++++++++--- pseudo_db.c | 15 +++++++++------ pseudo_db.h | 2 +- 4 files changed, 21 insertions(+), 10 deletions(-) diff --git a/ChangeLog.txt b/ChangeLog.txt index 131f163..d6359ca 100644 --- a/ChangeLog.txt +++ b/ChangeLog.txt @@ -1,3 +1,6 @@ +2016-07-28: + * (seebs) Fix performance issue on deletion with xattr changes. + 2016-07-08: * (RP) release 1.8.1 * (joshuagl) Fix log table creation issue diff --git a/pseudo.c b/pseudo.c index 52f649f..db1c400 100644 --- a/pseudo.c +++ b/pseudo.c @@ -600,7 +600,12 @@ pseudo_op(pseudo_msg_t *msg, const char *program, const char *tag, char **respon if (by_path.deleting != 0) { pseudo_debug(PDBGF_FILE, "inode mismatch for '%s' -- old one was marked for deletion, deleting.\n", msg->path); - pdb_did_unlink_file(msg->path, by_path.deleting); + /* in this case, we don't trust the + * existing entries, so we will do the + * more expensive sweep for stray + * xattrs. + */ + pdb_did_unlink_file(msg->path, NULL, by_path.deleting); } else { pseudo_diag("inode mismatch: '%s' ino %llu in db, %llu in request.\n", msg->path, @@ -698,7 +703,7 @@ pseudo_op(pseudo_msg_t *msg, const char *program, const char *tag, char **respon if (by_ino.deleting != 0) { pseudo_debug(PDBGF_FILE, "inode mismatch for '%s' -- old one was marked for deletion, deleting.\n", msg->path); - pdb_did_unlink_file(path_by_ino, by_ino.deleting); + pdb_did_unlink_file(path_by_ino, &by_ino, by_ino.deleting); } else { pseudo_diag("path mismatch [%d link%s]: ino %llu db '%s' req '%s'.\n", msg->nlink, @@ -930,7 +935,7 @@ pseudo_op(pseudo_msg_t *msg, const char *program, const char *tag, char **respon } break; case OP_DID_UNLINK: - pdb_did_unlink_file(msg->path, msg->client); + pdb_did_unlink_file(msg->path, msg, msg->client); break; case OP_CANCEL_UNLINK: pdb_cancel_unlink_file(msg); diff --git a/pseudo_db.c b/pseudo_db.c index 289bb29..e7dd193 100644 --- a/pseudo_db.c +++ b/pseudo_db.c @@ -1848,7 +1848,7 @@ pdb_did_unlink_files(int deleting) { /* confirm deletion of a specific file by a given client */ int -pdb_did_unlink_file(char *path, int deleting) { +pdb_did_unlink_file(char *path, pseudo_msg_t *msg, int deleting) { static sqlite3_stmt *delete_exact; int rc, exact; char *sql_delete_exact = "DELETE FROM files WHERE path = ? AND deleting = ?;"; @@ -1878,11 +1878,14 @@ pdb_did_unlink_file(char *path, int deleting) { exact = sqlite3_changes(file_db); pseudo_debug(PDBGF_DB, "(exact %d)\n", exact); sqlite3_reset(delete_exact); - sqlite3_clear_bindings(delete_exact); - /* we have to clean everything because we don't know for sure the - * device/inode... - */ - pdb_clear_unused_xattrs(); + if (msg) { + pdb_clear_xattrs(msg); + } else { + /* we have to clean everything because we don't know for sure the + * device/inode... + */ + pdb_clear_unused_xattrs(); + } return rc != SQLITE_DONE; } diff --git a/pseudo_db.h b/pseudo_db.h index a54f3c1..1b2599c 100644 --- a/pseudo_db.h +++ b/pseudo_db.h @@ -39,7 +39,7 @@ typedef struct { extern int pdb_maybe_backup(void); extern int pdb_cancel_unlink_file(pseudo_msg_t *msg); -extern int pdb_did_unlink_file(char *path, int deleting); +extern int pdb_did_unlink_file(char *path, pseudo_msg_t *msg, int deleting); extern int pdb_did_unlink_files(int deleting); extern int pdb_link_file(pseudo_msg_t *msg); extern int pdb_may_unlink_file(pseudo_msg_t *msg, int deleting); -- 2.7.4