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authorMichael Kelley <mhklinux@outlook.com>2026-01-29 07:51:54 -0800
committerWei Liu <wei.liu@kernel.org>2026-02-04 06:16:04 +0000
commit8d1294d4b54464a6b826709c871878c80e3c219e (patch)
tree8aa59a435d750e6808f4c09b6e009056c23d21cd /drivers/hv
parent956efd32f9e5d258a82c086e5c18a4f5abdd10c4 (diff)
mshv: Use EPOLLIN and EPOLLHUP instead of POLLIN and POLLHUP
mshv code currently uses the POLLIN and POLLHUP flags. Starting with commit a9a08845e9acb ("vfs: do bulk POLL* -> EPOLL* replacement") the intent is to use the EPOLL* versions throughout the kernel. The comment at the top of mshv_eventfd.c describes it as being inspired by the KVM implementation, which was changed by the above mentioned commit in 2018 to use EPOLL*. mshv_eventfd.c is much newer than 2018 and there's no statement as to why it must use the POLL* versions. So change it to use the EPOLL* versions. This change also resolves a 'sparse' warning. No functional change, and the generated code is the same. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202601220948.MUTO60W4-lkp@intel.com/ Signed-off-by: Michael Kelley <mhklinux@outlook.com> Reviewed-by: Stanislav Kinsburskii <skinsburskii@linux.microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/mshv_eventfd.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/hv/mshv_eventfd.c b/drivers/hv/mshv_eventfd.c
index 0b75ff1edb73..dfc8b1092c02 100644
--- a/drivers/hv/mshv_eventfd.c
+++ b/drivers/hv/mshv_eventfd.c
@@ -295,13 +295,13 @@ static int mshv_irqfd_wakeup(wait_queue_entry_t *wait, unsigned int mode,
{
struct mshv_irqfd *irqfd = container_of(wait, struct mshv_irqfd,
irqfd_wait);
- unsigned long flags = (unsigned long)key;
+ __poll_t flags = key_to_poll(key);
int idx;
unsigned int seq;
struct mshv_partition *pt = irqfd->irqfd_partn;
int ret = 0;
- if (flags & POLLIN) {
+ if (flags & EPOLLIN) {
u64 cnt;
eventfd_ctx_do_read(irqfd->irqfd_eventfd_ctx, &cnt);
@@ -320,7 +320,7 @@ static int mshv_irqfd_wakeup(wait_queue_entry_t *wait, unsigned int mode,
ret = 1;
}
- if (flags & POLLHUP) {
+ if (flags & EPOLLHUP) {
/* The eventfd is closing, detach from the partition */
unsigned long flags;
@@ -506,7 +506,7 @@ static int mshv_irqfd_assign(struct mshv_partition *pt,
*/
events = vfs_poll(fd_file(f), &irqfd->irqfd_polltbl);
- if (events & POLLIN)
+ if (events & EPOLLIN)
mshv_assert_irq_slow(irqfd);
srcu_read_unlock(&pt->pt_irq_srcu, idx);