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-rw-r--r--fs/block_dev.c4
-rw-r--r--fs/btrfs/zoned.c53
-rw-r--r--fs/cifs/Kconfig3
-rw-r--r--fs/cifs/Makefile5
-rw-r--r--fs/cifs/cifsfs.c3
-rw-r--r--fs/cifs/cifsglob.h2
-rw-r--r--fs/cifs/connect.c17
-rw-r--r--fs/direct-io.c5
-rw-r--r--fs/file.c21
-rw-r--r--fs/gfs2/super.c14
-rw-r--r--fs/hostfs/hostfs_kern.c7
-rw-r--r--fs/io-wq.c8
-rw-r--r--fs/io_uring.c70
-rw-r--r--fs/namei.c14
-rw-r--r--fs/ocfs2/aops.c11
-rw-r--r--fs/ocfs2/file.c8
-rw-r--r--fs/reiserfs/xattr.h2
17 files changed, 172 insertions, 75 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 28d583fcdc2c..09d6f7229db9 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -275,6 +275,8 @@ __blkdev_direct_IO_simple(struct kiocb *iocb, struct iov_iter *iter,
bio.bi_opf = dio_bio_write_op(iocb);
task_io_account_write(ret);
}
+ if (iocb->ki_flags & IOCB_NOWAIT)
+ bio.bi_opf |= REQ_NOWAIT;
if (iocb->ki_flags & IOCB_HIPRI)
bio_set_polled(&bio, iocb);
@@ -428,6 +430,8 @@ static ssize_t __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
bio->bi_opf = dio_bio_write_op(iocb);
task_io_account_write(bio->bi_iter.bi_size);
}
+ if (iocb->ki_flags & IOCB_NOWAIT)
+ bio->bi_opf |= REQ_NOWAIT;
dio->size += bio->bi_iter.bi_size;
pos += bio->bi_iter.bi_size;
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 1f972b75a9ab..eeb3ebe11d7a 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -21,9 +21,30 @@
/* Pseudo write pointer value for conventional zone */
#define WP_CONVENTIONAL ((u64)-2)
+/*
+ * Location of the first zone of superblock logging zone pairs.
+ *
+ * - primary superblock: 0B (zone 0)
+ * - first copy: 512G (zone starting at that offset)
+ * - second copy: 4T (zone starting at that offset)
+ */
+#define BTRFS_SB_LOG_PRIMARY_OFFSET (0ULL)
+#define BTRFS_SB_LOG_FIRST_OFFSET (512ULL * SZ_1G)
+#define BTRFS_SB_LOG_SECOND_OFFSET (4096ULL * SZ_1G)
+
+#define BTRFS_SB_LOG_FIRST_SHIFT const_ilog2(BTRFS_SB_LOG_FIRST_OFFSET)
+#define BTRFS_SB_LOG_SECOND_SHIFT const_ilog2(BTRFS_SB_LOG_SECOND_OFFSET)
+
/* Number of superblock log zones */
#define BTRFS_NR_SB_LOG_ZONES 2
+/*
+ * Maximum supported zone size. Currently, SMR disks have a zone size of
+ * 256MiB, and we are expecting ZNS drives to be in the 1-4GiB range. We do not
+ * expect the zone size to become larger than 8GiB in the near future.
+ */
+#define BTRFS_MAX_ZONE_SIZE SZ_8G
+
static int copy_zone_info_cb(struct blk_zone *zone, unsigned int idx, void *data)
{
struct blk_zone *zones = data;
@@ -111,23 +132,22 @@ static int sb_write_pointer(struct block_device *bdev, struct blk_zone *zones,
}
/*
- * The following zones are reserved as the circular buffer on ZONED btrfs.
- * - The primary superblock: zones 0 and 1
- * - The first copy: zones 16 and 17
- * - The second copy: zones 1024 or zone at 256GB which is minimum, and
- * the following one
+ * Get the first zone number of the superblock mirror
*/
static inline u32 sb_zone_number(int shift, int mirror)
{
- ASSERT(mirror < BTRFS_SUPER_MIRROR_MAX);
+ u64 zone;
+ ASSERT(mirror < BTRFS_SUPER_MIRROR_MAX);
switch (mirror) {
- case 0: return 0;
- case 1: return 16;
- case 2: return min_t(u64, btrfs_sb_offset(mirror) >> shift, 1024);
+ case 0: zone = 0; break;
+ case 1: zone = 1ULL << (BTRFS_SB_LOG_FIRST_SHIFT - shift); break;
+ case 2: zone = 1ULL << (BTRFS_SB_LOG_SECOND_SHIFT - shift); break;
}
- return 0;
+ ASSERT(zone <= U32_MAX);
+
+ return (u32)zone;
}
/*
@@ -300,10 +320,21 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device)
zone_sectors = bdev_zone_sectors(bdev);
}
- nr_sectors = bdev_nr_sectors(bdev);
/* Check if it's power of 2 (see is_power_of_2) */
ASSERT(zone_sectors != 0 && (zone_sectors & (zone_sectors - 1)) == 0);
zone_info->zone_size = zone_sectors << SECTOR_SHIFT;
+
+ /* We reject devices with a zone size larger than 8GB */
+ if (zone_info->zone_size > BTRFS_MAX_ZONE_SIZE) {
+ btrfs_err_in_rcu(fs_info,
+ "zoned: %s: zone size %llu larger than supported maximum %llu",
+ rcu_str_deref(device->name),
+ zone_info->zone_size, BTRFS_MAX_ZONE_SIZE);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ nr_sectors = bdev_nr_sectors(bdev);
zone_info->zone_size_shift = ilog2(zone_info->zone_size);
zone_info->max_zone_append_size =
(u64)queue_max_zone_append_sectors(queue) << SECTOR_SHIFT;
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index fe03cbdae959..bf52e9326ebe 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -18,6 +18,7 @@ config CIFS
select CRYPTO_AES
select CRYPTO_LIB_DES
select KEYS
+ select DNS_RESOLVER
help
This is the client VFS module for the SMB3 family of NAS protocols,
(including support for the most recent, most secure dialect SMB3.1.1)
@@ -112,7 +113,6 @@ config CIFS_WEAK_PW_HASH
config CIFS_UPCALL
bool "Kerberos/SPNEGO advanced session setup"
depends on CIFS
- select DNS_RESOLVER
help
Enables an upcall mechanism for CIFS which accesses userspace helper
utilities to provide SPNEGO packaged (RFC 4178) Kerberos tickets
@@ -179,7 +179,6 @@ config CIFS_DEBUG_DUMP_KEYS
config CIFS_DFS_UPCALL
bool "DFS feature support"
depends on CIFS
- select DNS_RESOLVER
help
Distributed File System (DFS) support is used to access shares
transparently in an enterprise name space, even if the share
diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile
index 5213b20843b5..3ee3b7de4ded 100644
--- a/fs/cifs/Makefile
+++ b/fs/cifs/Makefile
@@ -10,13 +10,14 @@ cifs-y := trace.o cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o \
cifs_unicode.o nterr.o cifsencrypt.o \
readdir.o ioctl.o sess.o export.o smb1ops.o unc.o winucase.o \
smb2ops.o smb2maperror.o smb2transport.o \
- smb2misc.o smb2pdu.o smb2inode.o smb2file.o cifsacl.o fs_context.o
+ smb2misc.o smb2pdu.o smb2inode.o smb2file.o cifsacl.o fs_context.o \
+ dns_resolve.o
cifs-$(CONFIG_CIFS_XATTR) += xattr.o
cifs-$(CONFIG_CIFS_UPCALL) += cifs_spnego.o
-cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o dfs_cache.o
+cifs-$(CONFIG_CIFS_DFS_UPCALL) += cifs_dfs_ref.o dfs_cache.o
cifs-$(CONFIG_CIFS_SWN_UPCALL) += netlink.o cifs_swn.o
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 099ad9f3660b..5ddd20b62484 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -476,7 +476,8 @@ static int cifs_show_devname(struct seq_file *m, struct dentry *root)
seq_puts(m, "none");
else {
convert_delimiter(devname, '/');
- seq_puts(m, devname);
+ /* escape all spaces in share names */
+ seq_escape(m, devname, " \t");
kfree(devname);
}
return 0;
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 67c056a9a519..ec824ab8c5ca 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1283,8 +1283,6 @@ struct cifs_aio_ctx {
bool direct_io;
};
-struct cifs_readdata;
-
/* asynchronous read support */
struct cifs_readdata {
struct kref refcount;
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index eec8a2052da2..24668eb006c6 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -87,7 +87,6 @@ static void cifs_prune_tlinks(struct work_struct *work);
*
* This should be called with server->srv_mutex held.
*/
-#ifdef CONFIG_CIFS_DFS_UPCALL
static int reconn_set_ipaddr_from_hostname(struct TCP_Server_Info *server)
{
int rc;
@@ -124,6 +123,7 @@ static int reconn_set_ipaddr_from_hostname(struct TCP_Server_Info *server)
return !rc ? -1 : 0;
}
+#ifdef CONFIG_CIFS_DFS_UPCALL
/* These functions must be called with server->srv_mutex held */
static void reconn_set_next_dfs_target(struct TCP_Server_Info *server,
struct cifs_sb_info *cifs_sb,
@@ -321,14 +321,29 @@ cifs_reconnect(struct TCP_Server_Info *server)
#endif
#ifdef CONFIG_CIFS_DFS_UPCALL
+ if (cifs_sb && cifs_sb->origin_fullpath)
/*
* Set up next DFS target server (if any) for reconnect. If DFS
* feature is disabled, then we will retry last server we
* connected to before.
*/
reconn_set_next_dfs_target(server, cifs_sb, &tgt_list, &tgt_it);
+ else {
+#endif
+ /*
+ * Resolve the hostname again to make sure that IP address is up-to-date.
+ */
+ rc = reconn_set_ipaddr_from_hostname(server);
+ if (rc) {
+ cifs_dbg(FYI, "%s: failed to resolve hostname: %d\n",
+ __func__, rc);
+ }
+
+#ifdef CONFIG_CIFS_DFS_UPCALL
+ }
#endif
+
#ifdef CONFIG_CIFS_SWN_UPCALL
}
#endif
diff --git a/fs/direct-io.c b/fs/direct-io.c
index b61491bf3166..b2e86e739d7a 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -812,6 +812,7 @@ submit_page_section(struct dio *dio, struct dio_submit *sdio, struct page *page,
struct buffer_head *map_bh)
{
int ret = 0;
+ int boundary = sdio->boundary; /* dio_send_cur_page may clear it */
if (dio->op == REQ_OP_WRITE) {
/*
@@ -850,10 +851,10 @@ submit_page_section(struct dio *dio, struct dio_submit *sdio, struct page *page,
sdio->cur_page_fs_offset = sdio->block_in_file << sdio->blkbits;
out:
/*
- * If sdio->boundary then we want to schedule the IO now to
+ * If boundary then we want to schedule the IO now to
* avoid metadata seeks.
*/
- if (sdio->boundary) {
+ if (boundary) {
ret = dio_send_cur_page(dio, sdio, map_bh);
if (sdio->bio)
dio_bio_submit(dio, sdio);
diff --git a/fs/file.c b/fs/file.c
index f3a4bac2cbe9..f633348029a5 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -629,17 +629,30 @@ int close_fd(unsigned fd)
}
EXPORT_SYMBOL(close_fd); /* for ksys_close() */
+/**
+ * last_fd - return last valid index into fd table
+ * @cur_fds: files struct
+ *
+ * Context: Either rcu read lock or files_lock must be held.
+ *
+ * Returns: Last valid index into fdtable.
+ */
+static inline unsigned last_fd(struct fdtable *fdt)
+{
+ return fdt->max_fds - 1;
+}
+
static inline void __range_cloexec(struct files_struct *cur_fds,
unsigned int fd, unsigned int max_fd)
{
struct fdtable *fdt;
- if (fd > max_fd)
- return;
-
+ /* make sure we're using the correct maximum value */
spin_lock(&cur_fds->file_lock);
fdt = files_fdtable(cur_fds);
- bitmap_set(fdt->close_on_exec, fd, max_fd - fd + 1);
+ max_fd = min(last_fd(fdt), max_fd);
+ if (fd <= max_fd)
+ bitmap_set(fdt->close_on_exec, fd, max_fd - fd + 1);
spin_unlock(&cur_fds->file_lock);
}
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 97076d3f562f..8fb9602d79b4 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -162,8 +162,10 @@ int gfs2_make_fs_rw(struct gfs2_sbd *sdp)
int error;
error = init_threads(sdp);
- if (error)
+ if (error) {
+ gfs2_withdraw_delayed(sdp);
return error;
+ }
j_gl->gl_ops->go_inval(j_gl, DIO_METADATA);
if (gfs2_withdrawn(sdp)) {
@@ -750,11 +752,13 @@ void gfs2_freeze_func(struct work_struct *work)
static int gfs2_freeze(struct super_block *sb)
{
struct gfs2_sbd *sdp = sb->s_fs_info;
- int error = 0;
+ int error;
mutex_lock(&sdp->sd_freeze_mutex);
- if (atomic_read(&sdp->sd_freeze_state) != SFS_UNFROZEN)
+ if (atomic_read(&sdp->sd_freeze_state) != SFS_UNFROZEN) {
+ error = -EBUSY;
goto out;
+ }
for (;;) {
if (gfs2_withdrawn(sdp)) {
@@ -795,10 +799,10 @@ static int gfs2_unfreeze(struct super_block *sb)
struct gfs2_sbd *sdp = sb->s_fs_info;
mutex_lock(&sdp->sd_freeze_mutex);
- if (atomic_read(&sdp->sd_freeze_state) != SFS_FROZEN ||
+ if (atomic_read(&sdp->sd_freeze_state) != SFS_FROZEN ||
!gfs2_holder_initialized(&sdp->sd_freeze_gh)) {
mutex_unlock(&sdp->sd_freeze_mutex);
- return 0;
+ return -EINVAL;
}
gfs2_freeze_unlock(&sdp->sd_freeze_gh);
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 29e407762626..743a005a5c64 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -144,7 +144,7 @@ static char *follow_link(char *link)
char *name, *resolved, *end;
int n;
- name = __getname();
+ name = kmalloc(PATH_MAX, GFP_KERNEL);
if (!name) {
n = -ENOMEM;
goto out_free;
@@ -173,12 +173,11 @@ static char *follow_link(char *link)
goto out_free;
}
- __putname(name);
- kfree(link);
+ kfree(name);
return resolved;
out_free:
- __putname(name);
+ kfree(name);
return ERR_PTR(n);
}
diff --git a/fs/io-wq.c b/fs/io-wq.c
index 7434eb40ca8c..4eba531bea5a 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -415,6 +415,7 @@ static void io_worker_handle_work(struct io_worker *worker)
{
struct io_wqe *wqe = worker->wqe;
struct io_wq *wq = wqe->wq;
+ bool do_kill = test_bit(IO_WQ_BIT_EXIT, &wq->state);
do {
struct io_wq_work *work;
@@ -444,6 +445,9 @@ get_next:
unsigned int hash = io_get_work_hash(work);
next_hashed = wq_next_work(work);
+
+ if (unlikely(do_kill) && (work->flags & IO_WQ_WORK_UNBOUND))
+ work->flags |= IO_WQ_WORK_CANCEL;
wq->do_work(work);
io_assign_current_work(worker, NULL);
@@ -484,7 +488,7 @@ static int io_wqe_worker(void *data)
worker->flags |= (IO_WORKER_F_UP | IO_WORKER_F_RUNNING);
io_wqe_inc_running(worker);
- sprintf(buf, "iou-wrk-%d", wq->task_pid);
+ snprintf(buf, sizeof(buf), "iou-wrk-%d", wq->task_pid);
set_task_comm(current, buf);
while (!test_bit(IO_WQ_BIT_EXIT, &wq->state)) {
@@ -711,7 +715,7 @@ static int io_wq_manager(void *data)
char buf[TASK_COMM_LEN];
int node;
- sprintf(buf, "iou-mgr-%d", wq->task_pid);
+ snprintf(buf, sizeof(buf), "iou-mgr-%d", wq->task_pid);
set_task_comm(current, buf);
do {
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 1949b80677e7..bd14327c8e7e 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -697,6 +697,7 @@ enum {
REQ_F_NO_FILE_TABLE_BIT,
REQ_F_LTIMEOUT_ACTIVE_BIT,
REQ_F_COMPLETE_INLINE_BIT,
+ REQ_F_REISSUE_BIT,
/* not a real bit, just to check we're not overflowing the space */
__REQ_F_LAST_BIT,
@@ -740,6 +741,8 @@ enum {
REQ_F_LTIMEOUT_ACTIVE = BIT(REQ_F_LTIMEOUT_ACTIVE_BIT),
/* completion is deferred through io_comp_state */
REQ_F_COMPLETE_INLINE = BIT(REQ_F_COMPLETE_INLINE_BIT),
+ /* caller should reissue async */
+ REQ_F_REISSUE = BIT(REQ_F_REISSUE_BIT),
};
struct async_poll {
@@ -1213,7 +1216,7 @@ static void io_prep_async_work(struct io_kiocb *req)
if (req->flags & REQ_F_ISREG) {
if (def->hash_reg_file || (ctx->flags & IORING_SETUP_IOPOLL))
io_wq_hash_work(&req->work, file_inode(req->file));
- } else {
+ } else if (!req->file || !S_ISBLK(file_inode(req->file)->i_mode)) {
if (def->unbound_nonreg_file)
req->work.flags |= IO_WQ_WORK_UNBOUND;
}
@@ -2476,6 +2479,11 @@ static bool io_rw_should_reissue(struct io_kiocb *req)
return false;
return true;
}
+#else
+static bool io_rw_should_reissue(struct io_kiocb *req)
+{
+ return false;
+}
#endif
static bool io_rw_reissue(struct io_kiocb *req)
@@ -2503,8 +2511,10 @@ static void __io_complete_rw(struct io_kiocb *req, long res, long res2,
if (req->rw.kiocb.ki_flags & IOCB_WRITE)
kiocb_end_write(req);
- if ((res == -EAGAIN || res == -EOPNOTSUPP) && io_rw_reissue(req))
+ if ((res == -EAGAIN || res == -EOPNOTSUPP) && io_rw_should_reissue(req)) {
+ req->flags |= REQ_F_REISSUE;
return;
+ }
if (res != req->result)
req_set_fail_links(req);
if (req->flags & REQ_F_BUFFER_SELECTED)
@@ -2752,6 +2762,7 @@ static void kiocb_done(struct kiocb *kiocb, ssize_t ret,
{
struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb);
struct io_async_rw *io = req->async_data;
+ bool check_reissue = kiocb->ki_complete == io_complete_rw;
/* add previously done IO, if any */
if (io && io->bytes_done > 0) {
@@ -2767,6 +2778,18 @@ static void kiocb_done(struct kiocb *kiocb, ssize_t ret,
__io_complete_rw(req, ret, 0, issue_flags);
else
io_rw_done(kiocb, ret);
+
+ if (check_reissue && req->flags & REQ_F_REISSUE) {
+ req->flags &= ~REQ_F_REISSUE;
+ if (!io_rw_reissue(req)) {
+ int cflags = 0;
+
+ req_set_fail_links(req);
+ if (req->flags & REQ_F_BUFFER_SELECTED)
+ cflags = io_put_rw_kbuf(req);
+ __io_req_complete(req, issue_flags, ret, cflags);
+ }
+ }
}
static int io_import_fixed(struct io_kiocb *req, int rw, struct iov_iter *iter)
@@ -3283,11 +3306,8 @@ static int io_read(struct io_kiocb *req, unsigned int issue_flags)
ret = io_iter_do_read(req, iter);
- if (ret == -EIOCBQUEUED) {
- if (req->async_data)
- iov_iter_revert(iter, io_size - iov_iter_count(iter));
- goto out_free;
- } else if (ret == -EAGAIN) {
+ if (ret == -EAGAIN || (req->flags & REQ_F_REISSUE)) {
+ req->flags &= ~REQ_F_REISSUE;
/* IOPOLL retry should happen for io-wq threads */
if (!force_nonblock && !(req->ctx->flags & IORING_SETUP_IOPOLL))
goto done;
@@ -3297,6 +3317,8 @@ static int io_read(struct io_kiocb *req, unsigned int issue_flags)
/* some cases will consume bytes even on error returns */
iov_iter_revert(iter, io_size - iov_iter_count(iter));
ret = 0;
+ } else if (ret == -EIOCBQUEUED) {
+ goto out_free;
} else if (ret <= 0 || ret == io_size || !force_nonblock ||
(req->flags & REQ_F_NOWAIT) || !(req->flags & REQ_F_ISREG)) {
/* read all, failed, already did sync or don't want to retry */
@@ -3409,6 +3431,11 @@ static int io_write(struct io_kiocb *req, unsigned int issue_flags)
else
ret2 = -EINVAL;
+ if (req->flags & REQ_F_REISSUE) {
+ req->flags &= ~REQ_F_REISSUE;
+ ret2 = -EAGAIN;
+ }
+
/*
* Raw bdev writes will return -EOPNOTSUPP for IOCB_NOWAIT. Just
* retry them without IOCB_NOWAIT.
@@ -3418,8 +3445,6 @@ static int io_write(struct io_kiocb *req, unsigned int issue_flags)
/* no retry on NONBLOCK nor RWF_NOWAIT */
if (ret2 == -EAGAIN && (req->flags & REQ_F_NOWAIT))
goto done;
- if (ret2 == -EIOCBQUEUED && req->async_data)
- iov_iter_revert(iter, io_size - iov_iter_count(iter));
if (!force_nonblock || ret2 != -EAGAIN) {
/* IOPOLL retry should happen for io-wq threads */
if ((req->ctx->flags & IORING_SETUP_IOPOLL) && ret2 == -EAGAIN)
@@ -6718,7 +6743,7 @@ static int io_sq_thread(void *data)
char buf[TASK_COMM_LEN];
DEFINE_WAIT(wait);
- sprintf(buf, "iou-sqp-%d", sqd->task_pid);
+ snprintf(buf, sizeof(buf), "iou-sqp-%d", sqd->task_pid);
set_task_comm(current, buf);
current->pf_io_worker = NULL;
@@ -6733,22 +6758,25 @@ static int io_sq_thread(void *data)
int ret;
bool cap_entries, sqt_spin, needs_sched;
- if (test_bit(IO_SQ_THREAD_SHOULD_PARK, &sqd->state)) {
+ if (test_bit(IO_SQ_THREAD_SHOULD_PARK, &sqd->state) ||
+ signal_pending(current)) {
+ bool did_sig = false;
+
mutex_unlock(&sqd->lock);
+ if (signal_pending(current)) {
+ struct ksignal ksig;
+
+ did_sig = get_signal(&ksig);
+ }
cond_resched();
mutex_lock(&sqd->lock);
+ if (did_sig)
+ break;
io_run_task_work();
io_run_task_work_head(&sqd->park_task_work);
timeout = jiffies + sqd->sq_thread_idle;
continue;
}
- if (signal_pending(current)) {
- struct ksignal ksig;
-
- if (!get_signal(&ksig))
- continue;
- break;
- }
sqt_spin = false;
cap_entries = !list_is_singular(&sqd->ctx_list);
list_for_each_entry(ctx, &sqd->ctx_list, sqd_list) {
@@ -8603,9 +8631,9 @@ static bool io_kill_timeouts(struct io_ring_ctx *ctx, struct task_struct *tsk,
canceled++;
}
}
- io_commit_cqring(ctx);
+ if (canceled != 0)
+ io_commit_cqring(ctx);
spin_unlock_irq(&ctx->completion_lock);
-
if (canceled != 0)
io_cqring_ev_posted(ctx);
return canceled != 0;
@@ -9002,6 +9030,8 @@ void __io_uring_task_cancel(void)
/* make sure overflow events are dropped */
atomic_inc(&tctx->in_idle);
+ __io_uring_files_cancel(NULL);
+
do {
/* read completions before cancelations */
inflight = tctx_inflight(tctx);
diff --git a/fs/namei.c b/fs/namei.c
index 216f16e74351..48a2f288e802 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -579,6 +579,8 @@ static void set_nameidata(struct nameidata *p, int dfd, struct filename *name)
p->stack = p->internal;
p->dfd = dfd;
p->name = name;
+ p->path.mnt = NULL;
+ p->path.dentry = NULL;
p->total_link_count = old ? old->total_link_count : 0;
p->saved = old;
current->nameidata = p;
@@ -652,6 +654,8 @@ static void terminate_walk(struct nameidata *nd)
rcu_read_unlock();
}
nd->depth = 0;
+ nd->path.mnt = NULL;
+ nd->path.dentry = NULL;
}
/* path_put is needed afterwards regardless of success or failure */
@@ -2322,8 +2326,6 @@ static const char *path_init(struct nameidata *nd, unsigned flags)
}
nd->root.mnt = NULL;
- nd->path.mnt = NULL;
- nd->path.dentry = NULL;
/* Absolute pathname -- fetch the root (LOOKUP_IN_ROOT uses nd->dfd). */
if (*s == '/' && !(flags & LOOKUP_IN_ROOT)) {
@@ -2419,16 +2421,16 @@ static int path_lookupat(struct nameidata *nd, unsigned flags, struct path *path
while (!(err = link_path_walk(s, nd)) &&
(s = lookup_last(nd)) != NULL)
;
+ if (!err && unlikely(nd->flags & LOOKUP_MOUNTPOINT)) {
+ err = handle_lookup_down(nd);
+ nd->flags &= ~LOOKUP_JUMPED; // no d_weak_revalidate(), please...
+ }
if (!err)
err = complete_walk(nd);
if (!err && nd->flags & LOOKUP_DIRECTORY)
if (!d_can_lookup(nd->path.dentry))
err = -ENOTDIR;
- if (!err && unlikely(nd->flags & LOOKUP_MOUNTPOINT)) {
- err = handle_lookup_down(nd);
- nd->flags &= ~LOOKUP_JUMPED; // no d_weak_revalidate(), please...
- }
if (!err) {
*path = nd->path;
nd->path.mnt = NULL;
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 3bfb4147895a..ad20403b383f 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -2295,7 +2295,7 @@ static int ocfs2_dio_end_io_write(struct inode *inode,
struct ocfs2_alloc_context *meta_ac = NULL;
handle_t *handle = NULL;
loff_t end = offset + bytes;
- int ret = 0, credits = 0, locked = 0;
+ int ret = 0, credits = 0;
ocfs2_init_dealloc_ctxt(&dealloc);
@@ -2306,13 +2306,6 @@ static int ocfs2_dio_end_io_write(struct inode *inode,
!dwc->dw_orphaned)
goto out;
- /* ocfs2_file_write_iter will get i_mutex, so we need not lock if we
- * are in that context. */
- if (dwc->dw_writer_pid != task_pid_nr(current)) {
- inode_lock(inode);
- locked = 1;
- }
-
ret = ocfs2_inode_lock(inode, &di_bh, 1);
if (ret < 0) {
mlog_errno(ret);
@@ -2393,8 +2386,6 @@ out:
if (meta_ac)
ocfs2_free_alloc_context(meta_ac);
ocfs2_run_deallocs(osb, &dealloc);
- if (locked)
- inode_unlock(inode);
ocfs2_dio_free_write_ctx(inode, dwc);
return ret;
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 6611c64ca0be..5edc1d0cf115 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1245,22 +1245,24 @@ int ocfs2_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
goto bail_unlock;
}
}
+ down_write(&OCFS2_I(inode)->ip_alloc_sem);
handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS +
2 * ocfs2_quota_trans_credits(sb));
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
- goto bail_unlock;
+ goto bail_unlock_alloc;
}
status = __dquot_transfer(inode, transfer_to);
if (status < 0)
goto bail_commit;
} else {
+ down_write(&OCFS2_I(inode)->ip_alloc_sem);
handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
- goto bail_unlock;
+ goto bail_unlock_alloc;
}
}
@@ -1273,6 +1275,8 @@ int ocfs2_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
bail_commit:
ocfs2_commit_trans(osb, handle);
+bail_unlock_alloc:
+ up_write(&OCFS2_I(inode)->ip_alloc_sem);
bail_unlock:
if (status && inode_locked) {
ocfs2_inode_unlock_tracker(inode, 1, &oh, had_lock);
diff --git a/fs/reiserfs/xattr.h b/fs/reiserfs/xattr.h
index 9b3b06da568c..e47fde1182de 100644
--- a/fs/reiserfs/xattr.h
+++ b/fs/reiserfs/xattr.h
@@ -44,7 +44,7 @@ void reiserfs_security_free(struct reiserfs_security_handle *sec);
static inline int reiserfs_xattrs_initialized(struct super_block *sb)
{
- return REISERFS_SB(sb)->priv_root != NULL;
+ return REISERFS_SB(sb)->priv_root && REISERFS_SB(sb)->xattr_root;
}
#define xattr_size(size) ((size) + sizeof(struct reiserfs_xattr_header))
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