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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /fs/jfs/file.c
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ...
Diffstat (limited to 'fs/jfs/file.c')
-rw-r--r--fs/jfs/file.c158
1 files changed, 158 insertions, 0 deletions
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
new file mode 100644
index 000000000..246568cb9
--- /dev/null
+++ b/fs/jfs/file.c
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) International Business Machines Corp., 2000-2002
+ * Portions Copyright (C) Christoph Hellwig, 2001-2002
+ */
+
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/filelock.h>
+#include <linux/posix_acl.h>
+#include <linux/quotaops.h>
+#include "jfs_incore.h"
+#include "jfs_inode.h"
+#include "jfs_dmap.h"
+#include "jfs_txnmgr.h"
+#include "jfs_xattr.h"
+#include "jfs_acl.h"
+#include "jfs_debug.h"
+
+int jfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
+{
+ struct inode *inode = file->f_mapping->host;
+ int rc = 0;
+
+ rc = file_write_and_wait_range(file, start, end);
+ if (rc)
+ return rc;
+
+ inode_lock(inode);
+ if (!(inode_state_read_once(inode) & I_DIRTY_ALL) ||
+ (datasync && !(inode_state_read_once(inode) & I_DIRTY_DATASYNC))) {
+ /* Make sure committed changes hit the disk */
+ jfs_flush_journal(JFS_SBI(inode->i_sb)->log, 1);
+ inode_unlock(inode);
+ return rc;
+ }
+
+ rc |= jfs_commit_inode(inode, 1);
+ inode_unlock(inode);
+
+ return rc ? -EIO : 0;
+}
+
+static int jfs_open(struct inode *inode, struct file *file)
+{
+ int rc;
+
+ if (S_ISREG(inode->i_mode) && inode->i_size < 0)
+ return -EIO;
+
+ if ((rc = dquot_file_open(inode, file)))
+ return rc;
+
+ /*
+ * We attempt to allow only one "active" file open per aggregate
+ * group. Otherwise, appending to files in parallel can cause
+ * fragmentation within the files.
+ *
+ * If the file is empty, it was probably just created and going
+ * to be written to. If it has a size, we'll hold off until the
+ * file is actually grown.
+ */
+ if (S_ISREG(inode->i_mode) && file->f_mode & FMODE_WRITE &&
+ (inode->i_size == 0)) {
+ struct jfs_inode_info *ji = JFS_IP(inode);
+ spin_lock_irq(&ji->ag_lock);
+ if (ji->active_ag == -1) {
+ struct jfs_sb_info *jfs_sb = JFS_SBI(inode->i_sb);
+ ji->active_ag = BLKTOAG(addressPXD(&ji->ixpxd), jfs_sb);
+ atomic_inc(&jfs_sb->bmap->db_active[ji->active_ag]);
+ }
+ spin_unlock_irq(&ji->ag_lock);
+ }
+
+ return 0;
+}
+static int jfs_release(struct inode *inode, struct file *file)
+{
+ struct jfs_inode_info *ji = JFS_IP(inode);
+
+ spin_lock_irq(&ji->ag_lock);
+ if (ji->active_ag != -1) {
+ struct bmap *bmap = JFS_SBI(inode->i_sb)->bmap;
+ atomic_dec(&bmap->db_active[ji->active_ag]);
+ ji->active_ag = -1;
+ }
+ spin_unlock_irq(&ji->ag_lock);
+
+ return 0;
+}
+
+int jfs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
+ struct iattr *iattr)
+{
+ struct inode *inode = d_inode(dentry);
+ int rc;
+
+ rc = setattr_prepare(&nop_mnt_idmap, dentry, iattr);
+ if (rc)
+ return rc;
+
+ if (is_quota_modification(&nop_mnt_idmap, inode, iattr)) {
+ rc = dquot_initialize(inode);
+ if (rc)
+ return rc;
+ }
+ if ((iattr->ia_valid & ATTR_UID && !uid_eq(iattr->ia_uid, inode->i_uid)) ||
+ (iattr->ia_valid & ATTR_GID && !gid_eq(iattr->ia_gid, inode->i_gid))) {
+ rc = dquot_transfer(&nop_mnt_idmap, inode, iattr);
+ if (rc)
+ return rc;
+ }
+
+ if ((iattr->ia_valid & ATTR_SIZE) &&
+ iattr->ia_size != i_size_read(inode)) {
+ inode_dio_wait(inode);
+
+ rc = inode_newsize_ok(inode, iattr->ia_size);
+ if (rc)
+ return rc;
+
+ truncate_setsize(inode, iattr->ia_size);
+ jfs_truncate(inode);
+ }
+
+ setattr_copy(&nop_mnt_idmap, inode, iattr);
+ mark_inode_dirty(inode);
+
+ if (iattr->ia_valid & ATTR_MODE)
+ rc = posix_acl_chmod(&nop_mnt_idmap, dentry, inode->i_mode);
+ return rc;
+}
+
+const struct inode_operations jfs_file_inode_operations = {
+ .listxattr = jfs_listxattr,
+ .setattr = jfs_setattr,
+ .fileattr_get = jfs_fileattr_get,
+ .fileattr_set = jfs_fileattr_set,
+#ifdef CONFIG_JFS_POSIX_ACL
+ .get_inode_acl = jfs_get_acl,
+ .set_acl = jfs_set_acl,
+#endif
+};
+
+const struct file_operations jfs_file_operations = {
+ .open = jfs_open,
+ .llseek = generic_file_llseek,
+ .read_iter = generic_file_read_iter,
+ .write_iter = generic_file_write_iter,
+ .mmap_prepare = generic_file_mmap_prepare,
+ .splice_read = filemap_splice_read,
+ .splice_write = iter_file_splice_write,
+ .fsync = jfs_fsync,
+ .release = jfs_release,
+ .unlocked_ioctl = jfs_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
+ .setlease = generic_setlease,
+};